6481-3 Construction of Cedar Street Parking Lot - Addendum 4 (Replacing Addendum 2) - Specifications
Construction Specifications
for
Old Central Parking Lot
Denton, Texas
Prepared by
Pacheco Koch, LLC
6100 Western Place
Suite 1001
Fort Worth, Texas 76107
Project Team
Landscape Architect:
Pacheco Koch, LLC
Nicholas G. Nelson, RLA
817-412-7155
Civil Engineer:
Pacheco Koch, LLC, F-14439
Jace C. Motheral,
817-412-7155
Mechanical Engineer:
Purdy-McGuire, Inc. F-1511
D. Scott Brown, P.E.
972-239-5357
08-02-2017
F-14439
Contents
01 56 39 – Temporary Tree and Plant Protection
12 93 00 – Site Furnishings
26 05 00 – Common Work Results for Electrical
26 05 19 – Low-Voltage Electrical Power Conductors and Cables
26 05 26 – Grounding and Bonding for Electrical Systems
26 05 29 – Hangers and Supports for Electrical Systems
26 05 33 – Raceway and Boxes for Electrical Systems
26 05 53 – Identification for Electrical Systems
26 05 73 – Overcurrent Protective Device Coordination Study
26 09 23 – Lighting Control Devices
26 24 16 – Panelboards
26 28 13 – Fuses
26 28 16 – Enclosed Switches and Circuit Breakers
26 56 00 – Exterior Lighting
31 00 00 – Earth Work
31 10 00 – Site Clearing
31 25 00 – Erosion and Sedimentation Controls
31 32 13.19 – Lime Treated Base Courses
32 13 13 – Portland Cement Concrete Paving
32 13 14 – Pedestrian Concrete & Surface Paving
32 13 73 – Concrete Paving Joint Sealants
32 14 00 – Unit Pavers
Contents - Continued
32 84 00 – Planting Irrigation
32 93 00 – Plants
33 46 00 – Storm Drainage Utilities
33 46 13.13 – Foundation and Drainage
Old Central Parking Lot Temporary Tree Protection
Denton, Texas 01 56 39-1 June 23, 2017
SECTION 01 56 39
TEMPORARY TREE AND PLANT PROTECTION
PART 1 GENERAL
1.01 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
1.02 SUMMARY
A. Section includes general protection, pruning, and care of existing trees and plants that are
affected by execution of the Work, whether temporary or permanent construction.
B. Related Requirements:
1. Section 01 50 00 "Temporary Facilities and Controls" for temporary site fencing.
2. Section 31 10 00 "Site Clearing" for removing existing trees and shrubs.
1.03 DEFINITIONS
A. Caliper: Diameter of a trunk measured by a diameter tape at a height 12inches above the
ground.
B. Drip Line: The width of the canopy of the tree as measured by the lateral extent of the
foliage on all sides.
C. Plant-Protection Zone: Area surrounding individual trees, groups of trees, shrubs, or other
vegetation to be protected during construction and indicated on Drawings.
D. Tree-Protection Zone: Area surrounding individual trees or groups of trees to be protected
during construction and indicated on Drawings or defined by a circle concentric with
each tree with a radius 1.5 times the diameter of the drip line unless otherwise indicated.
E. Vegetation: Trees, shrubs, groundcovers, grass, and other plants
1.04 PREINSTALLATION MEETINGS
A. Preinstallation Conference: Conduct conference at Project site.
1. Review methods and procedures related to temporary tree and plant protection
including, but not limited to, the following:
a. Tree-service firm's personnel, and equipment needed to make progress
and avoid delays.
b. Arborist's responsibilities.
c. Quality-control program.
d. Coordination of Work and equipment movement with the locations of
protection zones.
e. Trenching by hand or with air spade within protection zones.
f. Field quality control.
1.05 ACTION SUBMITTALS
A. Product Data: For each type of product.
B. Shop Drawings:
1. Include plans, elevations, sections, and locations of protection-zone fencing and
signage, showing relation of equipment-movement routes and material storage
locations with protection zones.
2. Indicate extent of trenching by hand or with air spade within protection zones.
C. Samples: For each type of the following:
1. Organic Mulch: 1-quart volume of organic mulch; in sealed plastic bags labeled
with composition of materials by percentage of weight and source of mulch.
D. Tree Preservation Schedule: Schedule, written by the arborist, detailing scope and extent
of work to be performed to preserve and protect existing trees to remain that interfere with
or are affected by construction.
Old Central Parking Lot Temporary Tree Protection
Denton, Texas 01 56 39-2 June 23, 2017
1. Species and size of tree.
2. Location of tree on site plan. Include unique identifier for each.
3. Location of protection zone for each tree.
4. If arborist determines pruning is required, provide reason for pruning, desc ription of
pruning to be performed, and description of maintenance procedures following
pruning.
1.06 INFORMATIONAL SUBMITTALS
A. Qualification Data: For arborist and tree service firm.
B. Certification: From arborist, certifying that trees indicated to remain have been protected
during construction according to recognized standards and that trees were promptly and
properly treated and repaired when damaged.
C. Maintenance Recommendations: From arborist, for care and protection of trees affected
by construction during and after completing the Work.
D. Existing Conditions: Documentation of existing trees and plantings indicated to remain,
which establishes preconstruction conditions that might be misconstrued as damage
caused by construction activities.
1. Use sufficiently detailed photographs or video recordings.
2. Include plans and notations to indicate specific wounds and damage conditions
of each tree or other plants designated to remain.
E. Quality-control program.
1.07 QUALITY ASSURANCE
A. Arborist Qualifications: Certified Arborist as certified by the International Society of
Arboriculture (ISA) or a Registered Consulting Arborist as designated by ASCA.
B. Tree Service Firm Qualifications: An experienced tree service firm that has successfully
completed temporary tree and plant protection work similar to that required for this
Project and that will assign an experienced, qualified arborist to Project site during
execution of the Work.
C. Quality-Control Program: Prepare a written program to systematically demonstrate the
ability of personnel to properly follow procedures and handle materials and equipment
during the Work without damaging trees and plantings. Include dimensioned diagrams for
placement of protection zone fencing and signage, the arborist's and tree-service firm's
responsibilities, instructions given to workers on the use and care of protection zones, and
enforcement of requirements for protection zones.
1.08 FIELD CONDITIONS
A. The following practices are prohibited within protection zones:
1. Storage of construction materials, debris, or excavated material.
2. Storage or use of equipment and non-related construction activities including, but
not limited to, pipe-cutting machines, tile-cutting machines, and lumber saws.
3. Storage or dumping of deleterious materials harmful to plant growth. Deleterious
materials might include, but are not limited to, fuels, oils, other petroleum
products, acids, liquids, concrete mix or concrete washout, stucco mix or stucco
washout, paint or paint washout, and zinc grindings from working with galvanized
products in the field.
4. Soil disturbance or grade change.
5. Moving or parking vehicles or equipment, even temporarily.
6. Foot traffic.
7. Erection of sheds or structures.
8. Drainage changes or impoundment of water.
9. Excavation or other digging unless otherwise indicated.
10. Att achment of signs to or wrapping materials around trees or plants unless
otherwise indicated.
11. The use of a tree as a temporary power pole, backstop, winch support,
anchorage, or other similar function.
B. Do not direct vehicle or equipment exhaust toward protection zones.
Old Central Parking Lot Temporary Tree Protection
Denton, Texas 01 56 39-3 June 23, 2017
C. Prohibit heat sources, flames, ignition sources, and smoking within or near protection zones
and organic mulch.
PART 2 PRODUCTS
2.01 MATERIALS
A. Backfill Soil: Planting soil of suitable moisture content and granular texture for placing
around tree; free of stones, roots, plants, sod, clods, clay lumps, pockets of coarse sand,
concrete slurry, concrete layers or chunks, cement, plaster, building debris, and other
extraneous materials harmful to plant growth.
1. Planting Soil: Fertile, friable, surface soil, containing natural loam and complying
with ASTM D 5268. Provide topsoil that is free of stones larger than 1 inch in any
dimension and free of other extraneous or toxic matter harmful to plant growth.
Obtain topsoil only from well-drained sites where soil occurs in depth of 4 inches or
more; do not obtain from bogs or marshes.
B. Organic Mulch: Free from deleterious materials and suitable as a top dressing for trees and
shrubs, consisting of one of the following:
1. Type: Hardwood.
2. Size Range: 3/8 inch to 3/4 inch diameter.
3. Color: Natural, no dyes.
C. Protection-Zone Fencing: Fencing fixed in position and meeting the following requirements.
Previously used materials may be used when approved by District Representative.
1. Chain-Link Protection-Zone Fencing: Galvani zed-steel fencing fabricated from
minimum 2-inch opening, 0.148-inch-diameter wire chain-link fabric; with pipe
posts, minimum 2- 3/8-inch-OD line posts, and 2-7/8-inch-OD corner and pull posts;
with 0.177-inch- diameter top tension wire and 0.177-inch-diameter bottom tension
wire; with tie wires, hog ring ties, and other accessories for a complete fence
system.
a. Height: 72 inches.
2. Gates: Single swing access gates matching material and appearance of fencing,
to allow for maintenance activities within protection zones; leaf width 36 inches.
PART 3 EXECUTION
3.01 EXAMINATION
A. Erosion and Sedimentation Control: Examine the site to verify that temporary erosion- and
sedimentation-control measures are in place. Verify that flows of water redirected from
construction areas or generated by construction activity do not enter or cross protection
zones.
B. Prepare written report, authored by arborist, listing conditions detrimental to tree and plant
protection.
3.02 PREPARATION
A. Locate and clearly identify trees, shrubs, and other vegetation to remain. Tie a 1-inch blue
vinyl tape around each tree trunk at 54 inches above the ground.
B. Protect tree root systems from damage caused by runoff or spillage of noxious materials
while mixing, placing, or storing construction materials. Protect root systems from ponding,
eroding, or excessive wetting caused by dewatering operations.
C. Tree-Protection Zones: Mulch areas inside tree-protection zones and other areas indicated.
Do not exceed indicated thickness of mulch.
1. Apply 6-8 inch uniform thickness of organic mulch unless otherwise indicated. Do
not place mulch within 6 inches of tree trunks.
3.03 PROTECTION ZONES
A. Protection-Zone Fencing: Install protection-zone fencing along edges of protection zones
before materials or equipment are brought on the site and construction operations begin
in a manner that will prevent people and animals from easily entering protected areas
Old Central Parking Lot Temporary Tree Protection
Denton, Texas 01 56 39-4 June 23, 2017
except by entrance gates. Construct fencing so as not to obstruct safe passage or visibility
at vehicle intersections where fencing is located adjacent to pedestrian walkways or in
close proximity to street intersections, drives, or other vehicular circulation.
1. Fencing: Install to comply with manufacturer's written instructions.
2. Posts: Set or drive posts into ground one-third the total height of the fence without
concrete footings. Where a post is located on existing paving or concrete to
remain, provide appropriate means of post support acceptable to District
Representative.
3. Access Gates: Install; adjust to operate smoothly, easily, and quietly; free of
binding, warp, excessive deflection, distortion, nonalignment, misplacement,
disruption, or malfunction throughout entire operational range. Confirm that
latches and locks engage accurately and securely without forcing or binding.
B. Protection-Zone Signage: Install protection-zone signage in visibly prominent locations in a
manner approved by owner. Install one sign spaced approximately every 20 feet on
protection-zone fencing, but no fewer than four signs with each facing a different
direction.
C. Maintain protection zones free of weeds and trash.
D. Maintain protection-zone fencing and signage in good condition as acceptable to District
Representative and remove when construction operations are complete and equipment
has been removed from the site.
1. Do not remove protection-zone fencing, even temporarily, to allow deliveries or
equipment access through the protection zone.
2. Temporary access is permitted subject to preapproval in writing by arborist if a
root buffer effective against soil compaction is constructed as directed by arborist.
Maintain root buffer so long as access is permitted.
3.04 EXCAVATION
A. General: Excavate at edge of protection zones and for trenches indicated within
protection zones according to requirements in Section 31 20 00 "Earth Moving" unless
otherwise indicated.
B. Trenching within Protection Zones: Where utility trenches are required within protection
zones, excavate under or around tree roots by hand or with air spade, or tunnel under the
roots by drilling, auger boring, or pipe jacking. Do not cut main lateral tree roots or
taproots; cut only smaller roots that interfere with installation of utilities. Cut roots as
required for root pruning. If excavating by hand, use narrow -tine spading forks to comb soil
and expose roots.
C. Redirect roots in backfill areas where possible. If encountering large, main lateral roots,
expose roots beyond excavation limits as required to bend and redirect them without
breaking. If encountered immediately adjacent to location of new construction and
redirection is not practical, cut roots approximately 3 inches back from new construction
and as required for root pruning.
D. Do not allow exposed roots to dry out before placing permanent backfill. Provide
temporary earth cover or pack with peat moss and wrap with burlap. Water and maintain
in a moist condition. Temporarily support and protect roots from damage until they are
permanently relocated and covered with soil.
3.05 ROOT PRUNING
A. Root pruning shall not be attempted by untrained construction personnel, but shall be
performed by a qualified tree care professional or a certified tree care worker. Only
personnel approved by the arborist shall perform pruning operations.
B. Prune tree roots that are affected by temporary and permanent construction. Prune roots
as directed by the arborist or as follows. If direction from arborist is different from what is
stated below, then direction from arborist governs.
1. Cut roots manually by digging a trench and cutting exposed roots with sharp
pruning inst ruments; do not break, tear, chop, or slant the cuts. Do not use a
backhoe or other equipment that rips, tears, or pulls roots.
Old Central Parking Lot Temporary Tree Protection
Denton, Texas 01 56 39-5 June 23, 2017
2. Cut Ends: Treat as directed by arborist.
3. Temporarily support and protect roots from damage until they are permanently
redirected and covered with soil.
4. Cover exposed roots with burlap and water regularly.
5. Backfill as soon as possible according to requirements in Section 31 20 00 "Earth
Moving."
C. Root Pruning at Edge of Protection Zone: Prune tree roots 6 inches of the protection zone
by cleanly cutting all roots to the depth of the required excavation.
D. Root Pruning within Protection Zone: Clear and excavate by hand or with air spade to the
depth of the required excavation to minimize damage to tree root systems. If excavating
by hand , use narrow -tine spading forks to comb soil to expose roots. Cleanly cut roots as
close to excavation as possible.
3.06 CROWN PRUNING
A. Crown pruning shall not be attempted by untrained construction personnel, but shall be
performed by a qualified tree care professional or a certified tree care worker. Only
personnel approved by the arborist shall perform pruning operations.
B. Prune branches that are affected by temporary and permanent construction. Prune
branches as directed by arborist.
1. Prune to remove only injured, broken, dying, or dead branches unless otherwise
indicated. Do not prune for shape unless otherwise indicated.
2. Do not remove or reduce living branches to compensate for root loss caused by
damaging or cutting root system.
3. Pruning Standards: Prune trees according to ANSI A300 (Part 1).
a. Type of Pruning: Cleaning, raising, reducing, and thinning as directed by
arborist.
b. Specialty Pruning: Structural restoration, vista, espalier, pollarding, palm,
and utility as directed by arborist.
C. Unless otherwise directed by arborist and acceptable to District Representative, do not cut
tree leaders.
D. Cut branches with sharp pruning instruments; do not break or chop.
E. Do not paint or apply sealants to wounds.
F. Provide subsequent maintenance pruning during Contract p eriod as recommended by
arborist.
G. Chip removed branches and dispose of off-site.
3.07 REGRADING
A. Lowering Grade: Where new finish grade is indicated below existing grade around trees,
slope grade beyond the protection zone. Maintain existing grades within the protection
zone.
B. Lowering Grade within Protection Zone: Where new finish grade is indicated below existing
grade around trees, slope grade away from trees as recommended by arborist unless
otherwise indicated.
1. Root Pruning: Prune tree roots exposed by lowering the grade. Do not cut main
lateral roots or taproots; cut only smaller roots. Cut roots as required for root
pruning.
C. Raising Grade: Where new finish grade is indicated above existing grade around trees,
slope grade beyond the protection zone. Maintain existing grades within the protection
zone.
D. Minor Fill within Protection Zone: Where existing grade is 2 inches or less below elevation of
finish grade, fill with backfill soil. Place backfill soil in a single uncompacted layer and hand
grade to required finish elevations.
Old Central Parking Lot Temporary Tree Protection
Denton, Texas 01 56 39-6 June 23, 2017
3.08 FIELD QUALITY CONTROL
A. Inspections: Engage a qualified arborist to direct plant-protection measures in the vicinity
of trees, shrubs, and other vegetation indicated to remain and to prepare inspection
reports. Submit inspection reports monthly.
3.09 MAINTENANCE
A. Irrigation: Supplemental irrigation shall be applied to moisten the soil within the protection
zone to the depth of the existing root system as necessary, typically in the top 2 to 3 feet of
soil, and to then repl ace that moisture once it is depleted. Irrigation frequency and depth
shall be based on the needs of the individual tree. Irrigation applications performed on a
schedule are not acceptable, as many variables determine the individual tree’s needs
(age of tree, size of tree, soil type, aspect, weather, time of year, extent of root pruning,
etc). Light, frequent irrigation applications shall be avoided. Apply water deeply,
thoroughly, and infrequently, by a method directed by the arborist. Water used in
supplemental irrigation applications shall be clean potable water from a reliable source.
B. Where temporary clearance is needed for adjacent access, tree branches shall be
temporarily tied back to hold them out of the clearance zone, with approval by the
arborist. Tied branches shall be protected with burlap or other protective material to
prevent wounding and chafing.
C. Dust Control: Tree shall be maintained in a clean fashion throughout the length of the
Work. During periods of demolition, clearing & grubbing, grading activities, post-wind, or
simply time, gently spray the foliage, trunks, and branches with clean potable water to
remove construction dust. Do not utilize pressure washers, large streams of water with high
volumes, or other insensitive methods to clean the foliage.
D. Area inside the tree protection zone shall be maintained in a neat manner, removing
excessive leaf build-up, fallen twigs and branches, or debris deposited by winds or other
causes.
E. When installing concrete adjacent to the tree protection zone, install a plastic vapor
barrier behind the concrete to prohibit leaching of lime into the soil.
F. Pest and Disease Control: Notify the arborist if any symptoms of pest or disease are
observed. Provide appropriate measures to prevent or remedy pests and diseases, as
directed by the arborist.
3.10 REPAIR AND REPLACEMENT
A. General: Repair or replace trees, shrubs, and other vegetation indicated to remain or to
be relocated that are damaged by construction operations, in a manner approved by
District Representative.
1. Submit details of proposed pruning and repairs.
2. Perform repairs of damaged trunks, branches, and roots within 24 hours according
to arborist's written instructions.
3. Replace trees and other plants that cannot be repaired and restored to full-
growth status, as determined by District Representative.
B. Trees: Remove and replace trees indicated to remain that are more than 25 percent dead
or in an unhealthy condition before the end of the corrections period or are damaged
during construction operations that District Representative determines are incapable of
restoring to normal growth pattern.
1. Small Trees: Provide new trees of same size and species as those being replaced
for each tree that measures 10 inches or smaller in caliper size.
2. Large Trees: Project Arborist shall determine the tree appraisal value for damage
and replacement using the most recent edition of the Guide for Plant Appraisal,
authored by the Council of Tree and Landscape Appraisers (CTLA), and published
by the International Society of Arboriculture (ISA), Champaign, IL. The formula
used shall also be noted.
a. Species: As selected by District Representative.
3. Plant and maintain new trees as specified in Section 32 93 00 "Plants."
C. Excess Mulch: Rake mulched area within protection zones, being careful not to injure roots.
Rake to loosen and remove mulch that exceeds a 3 inch uniform thickness to remain.
Old Central Parking Lot Temporary Tree Protection
Denton, Texas 01 56 39-7 June 23, 2017
D. Soil Aeration: Aerate surface soil compacted during construction. Aerate 10 feet beyond
drip line and no closer than 36 inches to tree trunk. Drill 2 inch diameter holes a minimum of
12 Inches deep at 24 inches o.c. Backfill holes with an equal mix of augered soil and sand.
3.11 DISPOSAL OF SURPLUS AND WASTE MATERIALS
A. Disposal: Remove excess excavated material, displaced trees, trash, and debris and
legally dispose of them off District's property.
END OF SECTION 01 56 39
Old Central Parking Lot Site Furnishings
Denton, Texas 12 93 00-1 June 23, 2017
SECTION 12 93 00
SITE FURNISHINGS
PART 1 - GENERAL
1.01 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
1.02 SUMMARY
A. This Section includes the following:
1. Trash receptacles.
2. Benches.
3. Bike Racks.
B. Related Sections include the following:
1. Division 32 Section "Concrete Pavements" for concrete footings and slabs and for the
concrete used in the picnic tables.
1.03 SUBMITTALS
A. Product Data: For each type of product indicated.
B. Samples for Verification: For each type of exposed finish required, prepared on Samples of
size indicated below.
1. Size: Not less than 6-inch- long linear components and 4-inch- square sheet
components.
C. Product Schedule: For site furnishings. Use same designations indicated on Drawings.
D. Maintenance Data: For site furnishings to include in maintenance manuals.
1.04 QUALITY ASSURANCE
A. Source Limitations: Obtain each type of site furnishing through one source from a single
manufacturer.
PART 2 - PRODUCTS
2.01 TRASH RECEPTACLE
A. Per the drawing materials schedule
2.02 BENCH
A. Per the drawing materials schedule
2.03 BIKE RACK
A. Per the drawing materials schedule.
2.04 FABRICATION
A. Metal Components: Form to required shapes and sizes with true, consistent curves, lines, and
angles. Separate metals from dissimilar materials to prevent electrolytic action.
B. Welded Connections: Weld connections continuously. Weld solid members with full-length,
full -penetration welds and hollow members with full-circumference welds. At exposed
connections, finish surfaces smooth and blended so no roughness or unevenness shows after
finishing and welded surface matches contours of adjoining surfaces.
C. Pipes and Tubes: Form simple and compound curves by bending members in jigs to
produce uniform curvature for each repetitive configuration required; maintain cylindrical
cross section of member throughout entire bend without buckling, twisting, cracking, or
otherwise deforming exposed surfaces of handrail and railing components.
Old Central Parking Lot Site Furnishings
Denton, Texas 12 93 00-2 June 23, 2017
D. Exposed Surfaces: Polished, sanded, or otherwise finished; all surfaces smooth, free of burrs,
barbs, splinters, and sharpness; all edges and ends rolled, rounded, or capped.
E. Factory Assembly: Assemble components in the factory to greatest extent possible to
minimize field assembly. Clearly mark units for assembly in the field.
2.05 FINISHES, GENERAL
A. Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal Products" for
recommendations for applying and designating finishes.
B. Appearance of Finished Work: Variations in appearance of abutting or adjacent pieces are
acceptable if they are within one-half of the range of approved Samples. Noticeable
variations in the same piece are not acceptable. Variations in appearance of other
components are acceptable if they are within the range of approved Samples and are
assembled or installed to minimize contrast.
2.06 STEEL AND GALVANIZED STEEL FINISHES
A. Baked-Enamel, Powder-Coat Finish: Manufacturer's standard, baked, polyester, powder-
coat finish complying with finish manufacturer's written instructions for surface preparation,
including pretreatment, application, baking, and minimum dry film thickness.
2.07 EXECUTION
2.08 EXAMINATION
A. Examine areas and conditions, with Installer present, for compliance with requirements for
correct and level finished grade, mounting surfaces, installation tolerances, and other
conditions affecting performance.
1. Proceed with installation only after unsatisfactory conditions have been corrected.
2.09 INSTALLATION, GENERAL
A. Comply with manufacturer's written installation instructions unless more stringent
requirements are indicated. Complete field assembly of site furnishings where required.
B. Unless otherwise indicated, install site furnishings concurrent to the paving.
C. Install site furnishings level, plumb, true, and securely anchored at locations indicated on
Drawings.
D. Post Setting: Set cast-in support posts in concrete footing with smooth top, shaped to shed
water. Protect portion of posts above footing from concrete splatter. Verify that posts are
set plumb or at correct angle and are aligned and at correct height and spacing. Hold
posts in position during placement and finishing operations until concrete is sufficiently cured.
2.10 CLEANING
E. After completing site furnishing installation, inspect components. Remove spots, dirt, and
debris. Repair damaged finishes to match original finish or replace component.
END OF SECTION 12 93 00
Old Central Parking Lot Common Work Results for Electrical
Denton, Texas 26 05 00-1 June 23, 2017
SECTION 26 05 00
COMMON WORK RESULTS FOR ELECTRICAL
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. Section Includes:
1. Electrical equipment coordination and installation.
2. Sleeves for raceways and cables.
3. Sleeve seals.
4. Grout.
5. Common electrical installation requirements.
1.3 DEFINITIONS
A. EPDM: Ethylene-propylene-diene terpolymer rubber.
B. NBR: Acrylonitrile-butadiene rubber.
1.4 SUBMITTALS
A. Product Data: For sleeve seals.
B. Shop Drawings: Where not specifically mentioned in subsequent sections, provide drawings for
equipment arrangements, terminal boards, large cabinets and enclosures, local communications
systems and modular wiring systems.
1.5 COORDINATION
A. Coordinate arrangement, mounting, and support of electrical equipment:
1. To provide for ease of disconnecting the equipment with minimum interference to other
installations.
2. To allow right of way for piping and conduit installed at required slope.
3. So connecting raceways, cables, wireways, cable trays, and busways will be clear of
obstructions and of the working and access space of other equipment.
B. Coordinate installation of required supporting devices and set sleeves in cast-in-place concrete,
masonry walls, and other structural components as they are constructed.
C. Coordinate chases, inserts, sleeves, and openings with general construction work and arrange in
building structure during progress of construction to facilitate the electrical installations that
follows.
1. Set inserts and sleeves in poured-in place concrete, masonry work, and other structural
components as they are constructed.
D. Sequence, coordinate, and integrate installing electrical materials and equipment for efficient
flow of the Work. Coordinate installing large equipment requiring positioning before closing in the
building.
Old Central Parking Lot Common Work Results for Electrical
Denton, Texas 26 05 00-2 June 23, 2017
E. Coordinate electrical service connections to components furnished by utility companies.
1. Coordinate installation and connection of exterior underground and overhead utilities and
services, including provision for electricity-metering components.
2. Comply with requirements of authorities having jurisdiction and of utility company
providing electrical power and other services.
F. Where electrical identification devices are applied to field-finished surfaces, coordinate
installation of identification devices with completion of finished surface.
1.6 GENERAL
A. For Products specified by reference to an association or trade standard, comply with
requirements and recommendations stated in that standard, except when requirements are
modified by the Contract Documents, or applicable codes establish stricter standards.
B. The date of the standard is that in effect on the date of issue of Contract Documents, except
when a specific publication date is specified. Obtain copies of referenced standards direct from
publication source, when needed for proper performance of Work, or when required for
submittal by Contract Documents
1.7 SCHEDULE OF ABBREVIATIONS
A. Reference standards are listed in various sections using abbreviations contained below:
ANSI American National Standards Institute
ASTM American Society for Testing and Materials
EGSMA Engine Generator Sales Manufacturers Association
ETL Electrical Testing Laboratories
ICEA Insulated Cable Engineers Association
IEEE Institute of Electrical and Electronic Engineers
IES Illuminating Engineering Society
NBS National Bureau of Standards
NEC National Electrical Code
NECA National Electrical Contractors Association
NEMA National Electrical Manufacturers' Association
NETA International Electrical Testing Association
NFPA National Fire Protection Association
OSHA Occupation Safety Health Administration
UL Underwriters Laboratories
1.8 OPERATION AND CONTROL CHARACTERISTICS OF EQUIPMENT
A. The operation and control characteristics of each item of equipment scheduled, noted and/or
indicated on the plans and specifications are based on a particular manufacturer and model.
While other manufacturers or models may be acceptable, it is the responsibility of the Contractor
to verify that the operation and controls characteristics for the equipment he proposes to provide
match those indicated. In the instance where the equipment he proposes to provide has
different operation and controls characteristics, the Contractor AT NO COST TO THE OWNER shall
provide the required operation and controls characteristics required. All modifications to provide
the operation and control characteristics shall be coordinated by the Contractor with the
Engineer.
B. When any equipment is operable, and it is to the advantage of the Contractor to operate the
equipment, he may do so provided that he properly supervises the operation, and retains full
responsibility for the equipment operated.
Old Central Parking Lot Common Work Results for Electrical
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C. Regardless of whether or not the equipment has or has not been operated, the Contractor shall
clean the equipment properly, make required adjustments, and complete punch list items before
final acceptance by the Owner.
D. The date of acceptance by the Architect, for beneficial use by the Owner, shall be the
beginning date of the warranty period.
1.9 SPACE AND EQUIPMENT ARRANGEMENT
A. The size of each item of equipment shown on the Drawings is based on the dimensions of a
particular manufacturer, or approximate dimensions for "generic" equipment. While other
manufacturers may be acceptable, it shall be the responsibility of the Contractor to determine
whether or not the equipment he proposes to furnish will fit into the available space. Shop
drawings shall be prepared to indicate a suitable arrangement.
B. Install equipment in a manner to permit access to all surfaces. Install switches, circuit breakers,
relays, ballasts, and other accessory items, and all auxiliary devices in a position to allow removal
for service without requiring the disassembly of another part. Alternative arrangements deemed
"suitable" must conform to Codes and provide at least as much access and working space
clearance as indicated on Bid Drawings.
C. Large equipment assemblies and components which will be installed in the building, and which
are too large to permit access through doorways, stairways or shafts, shall be brought to the site
and placed in the appropriate spaces before the enclosing structure is completed. Such
equipment shall be ordered early on, sufficient to allow arrival for timely installation. Contact the
Architect should problems be expected in this regard. The equipment shall be protected until
hazards of damage to the equipment, including dust and moisture, are eliminated.
1.10 OPERATING AND MAINTENANCE MANUALS
A. Manuals shall be submitted which contain the following:
1. Description of the system provided.
a. Handling, storage, and installation instructions.
b. Detailed description of the function of each principal component of the systems or
equipment, including necessary wiring diagrams.
2. Operating procedures:
a. Pre startup activities required.
b. Startup.
c. Normal operation.
d. Emergency shutdown.
e. Normal shutdown.
f. Trouble-shooting guide.
3. Maintenance:
a. Preventative and repair maintenance procedures.
b. Complete spare parts list with cross reference to original equipment manufacturer
part number.
4. Safety and environmental considerations.
5. Other data required elsewhere in the specifications.
B. Three copies of the manuals shall be provided within sufficient time to allow for training of
Owner's personnel. Submit one copy of the manuals to the Architect for review no later than 90
calendar days prior to substantial completion or building turn over, whichever comes first. Submit
the remaining three corrected copies within 15 days after review set is returned to contractor.
Progress payment may be withheld if this requirement is not met.
C. The manuals shall be provided in three-ring side binders with durable plastic covers.
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D. The manuals shall contain a detailed table of contents and have tab dividers for major sections
and special equipment.
E. The Owner will not accept any training or equipment unless the maintenance manuals are
received a minimum of 10 working days prior to request for Training/Turnover.
1.11 START-UP EQUIPMENT AND SYSTEMS
A. Whenever the manufacturer of a particular item of equipment or a particular system makes
available a start-up service after completion of the installation, such manufacturer's start-up
service (rendered by the manufacturer or his authorized representative) shall be provided.
B. Witnessing and explanations of start-up services shall be included as part of the "Instruction of
Owner's Personnel" as specified below.
1.12 INSTRUCTION OF OWNER'S PERSONNEL
A. Provide the services of competent engineers or technicians acceptable to the Architect to
instruct representatives of the Owner in complete and detailed operation and maintenance of
each item of equipment, and each system. These instructions shall be provided for whatever
periods may be necessary to accomplish the desired results. Upon completion of these
instructions, the Contractor shall obtain a letter of release, acknowledged by the Owner or his
authorizes representative, stating the dates on which the various kinds of instruction were given,
and the personnel to whom the instructions were given.
B. The Contractor shall be fully responsible for proper maintenance of equipment and systems until
the instructions have been given to the Owner's personnel and the letter of release
acknowledged.
C. In providing the instructions to the Owner's personnel, the written operating and maintenance
manuals shall be followed in all instances, and the Owner's personnel shall be familiarized with
such manuals.
1.13 AS-BUILT DRAWINGS
A. The Contractor shall, during the progress of the job, keep a set of record prints on which he shall
mark all changes. After completion of a CADD release form by the Contractor and near the
conclusion of the job, the Architect will provide the Contractor with one set of AutoCAD
electronic files of the Mechanical, Plumbing, and Electrical Drawings. The Contractor shall draft
on these electronic files all changes made during the progress of the work and return them and
one set of paper plans with the changes to the Architect as "As-Built Drawings".
PART 2 - PRODUCTS
2.1 MANUFACTURERS
A. In other Part 2 articles where subparagraph titles below introduce lists, the following requirements
apply for product selection:
1. Available Manufacturers: Subject to compliance with requirements, manufacturers
offering products that may be incorporated into the Work include, but are not limited to,
the manufacturers specified.
2. Manufacturers: Subject to compliance with requirements, provide products by the
manufacturers specified.
B. Each item of equipment furnished on this project shall have local representation, factory-
authorized service and an adequate stock of repair parts. “Local” shall be defined, for this
purpose, as “within 50 miles of the project site.”
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2.2 SLEEVES FOR RACEWAYS AND CABLES
A. Steel Pipe Sleeves: ASTM A 53/A 53M, Type E, Grade B, Schedule 40, galvanized steel, plain ends.
B. Sleeves for Rectangular Openings: Galvanized sheet steel.
1. Minimum Metal Thickness:
a. For sleeve cross-section rectangle perimeter less than 50 inches and no side more
than 16 inches, thickness shall be 0.052 inch.
b. For sleeve cross-section rectangle perimeter equal to, or more than, 50 inches and 1
or more sides equal to, or more than, 16 inches, thickness shall be 0.138 inch.
2.3 SLEEVE SEALS
A. Description: Modular sealing device, designed for field assembly, to fill annular space between
sleeve and raceway or cable.
1. Basis-of-Design Product: Subject to compliance with requirements, provide product
indicated on Drawings or comparable product by one of the following:
a. Advance Products & Systems, Inc.
b. Calpico, Inc.
c. Metraflex Co.
d. Pipeline Seal and Insulator, Inc.
2. Sealing Elements: EPDM interlocking links shaped to fit surface of cable or conduit.
Include type and number required for material and size of raceway or cable.
3. Pressure Plates: Stainless steel. Include two for each sealing element.
4. Connecting Bolts and Nuts: Stainless steel of length required to secure pressure plates to
sealing elements. Include one for each sealing element.
2.4 GROUT
A. Nonmetallic, Shrinkage-Resistant Grout: ASTM C 1107, factory-packaged, nonmetallic aggregate
grout, noncorrosive, nonstaining, mixed with water to consistency suitable for application and a
30-minute working time.
PART 3 - EXECUTION
3.1 ELECTRICAL DEMOLITION
A. Access: Access to and use of the existing facilities and site will be restricted, and shall be under
the direction and control of the Owner.
B. Disruptions: Maintain existing electrical, communications, alarm, and other existing systems, and
maintain existing functions in service except for scheduled disruptions. Where existing functions
to remain in use are disrupted, they shall be fully restored after disruption, in full compliance with
this Division of the Specifications for new work.
C. Scheduling of Disruptions: Seek and obtain approval two weeks in advance of event for date,
starting time, and duration of each required disruption.
D. Notice of Disruption: Date, time and duration of each disruption shall be subject to the Owner's
prior approval, and shall include the following information in the form of a memorandum
submitted by the Contractor to the Architect for approval by the Owner.
Facility/System Date Starting Time Duration
E. Emergency disruptions: When circumstances preclude obtaining advance approval as specified
above; make request immediately on knowledge of the requirement, and perform work so as to
cause the minimum amount of disruption, for the minimum duration.
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F. Notification: Notify the Architect and the Owner immediately by telephone and then in writing,
as changes and additions to the scheduled disruption requirements become known.
G. Duration: Complete as large a portion of the work as possible before initiating disruption and
perform only that work necessary so as to minimize duration of disruption. Maintain adequate
personnel, supplies, materials, equipment, tools, and other resources at job site to avoid
unnecessary delay in resumption of normal service.
3.2 GENERAL
A. The Drawings and specifications are intended to accomplish certain objectives. These
documents do not purport to indicate methods the Contractor is to use in accomplishing the
objectives. They show conduit and wire sizes and they describe the various systems. These
documents describe and size equipment, its general location, usage, support and auxiliary
requirements. They also describe most, but not all, of the materials and their usage for this
project.
B. Contract Documents do not, however, detail certain job requirements. In most instances they do
not show exact layouts, locations or elevations of any fixtures, conduits, anchors, sleeves,
hangers, slots, holes, outlets, inserts, elbows, or fittings. They do not show final precise location of
equipment by dimension in most instances.
C. In general, conduit in finished areas of the building shall be run concealed in chases, walls, floor
slabs, furrings, and above suspended ceilings, unless noted or indicated otherwise. Should any
condition arise which would cause any conduit to be exposed in finished area, it shall be
immediately called to the Architect's attention and correction of the condition shall be made in
accordance with the Architect's instruction. Runs of conduit shall be grouped wherever it is
feasible to do so. Conduits shall be cut accurately to measurements established at the building
and shall be worked into place without springing or forcing.
1. Conduits shall not be run above grade, outside, exposed on any external walls, or across
the roof exposed, without the express written permission of the Architect.
2. Conduit openings shall be capped during construction until the systems are closed with
final connections.
D. The exact location of each item shall be determined by reference to the project Contract
Drawings, and to details, equipment drawings, roughing-in drawings, by measurement at the
building, and in cooperation with the various trades. In congested spaces (such as below raised
floors), Contractor shall develop a special hierarchy to coordinate electrical with other trades.
Contact Architect for additional guidance. Minor relocations necessitated by the conditions at
the site or directed by the Owner shall be made without additional cost to the Owner.
E. Coordinate proper locations and sizes of slots, holes or openings in the building structure
pertaining to this work, and for the correct location of sleeves. Place inserts to accommodate
the ultimate installation of hangers in the forms, and set sleeves in forms before concrete is
poured, and in masonry walls while they are under construction. Concealed lines shall be
installed as required by the pace of the job to precede the general construction.
F. Provide electrical connections to each item of equipment requiring such connections.
G. Final connection shall be made with at least two feet (no more than six feet) of liquid-tight flexible
conduit.
3.3 SALVAGE, DEMOLITION AND RELOCATION
A. General:
1. Modify, remove, or relocate materials and items indicated on the Drawings or required by
the installation of new facilities.
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2. Remove demolition material from the site and deliver salvage materials to destinations on
the premises, as directed.
B. Relocations:
1. Repair and restore to good functional condition, equipment, materials and items
scheduled for relocation, which are damaged during dismantling or reassembly
operations.
2. Remove carefully, in reverse order to original assembly or placement, items which are to
be relocated.
3. Protect items until relocation is complete.
4. Clean and repair items to be relocated, and provide new materials, fittings, and
appurtenances required to complete the relocations and to restore to good operating
order.
5. Perform the relocation work in accordance with applicable Sections of these
Specifications, utilizing skilled workers.
C. Relocating Devices: Remove and reinstall in locations designated by the Architect temperature
control system devices, relays, wire, conduit, fixtures, equipment and other devices required for
the operation of the various systems that are installed in existing-to-be-removed construction.
3.4 COMMON REQUIREMENTS FOR ELECTRICAL INSTALLATION
A. Comply with NECA 1.
B. Measure indicated mounting heights to bottom of unit for suspended items and to center of unit
for wall-mounting items.
C. Headroom Maintenance: If mounting heights or other location criteria are not indicated,
arrange and install components and equipment to provide maximum possible headroom
consistent with these requirements.
D. Equipment: Install to facilitate service, maintenance, and repair or replacement of components
of both electrical equipment and other nearby installations. Connect in such a way as to
facilitate future disconnecting with minimum interference with other items in the vicinity.
E. Right of Way: Give to piping systems installed at a required slope.
3.5 SLEEVE INSTALLATION FOR ELECTRICAL PENETRATIONS
A. Electrical penetrations occur when raceways, cables, wireways, cable trays, or busways
penetrate concrete slabs, concrete or masonry walls, or fire-rated floor and wall assemblies.
B. Concrete Slabs and Walls: Install sleeves for penetrations unless core-drilled holes or formed
openings are used. Install sleeves during erection of slabs and walls.
C. Use pipe sleeves unless penetration arrangement requires rectangular sleeved opening.
D. Fire-Rated Assemblies: Install sleeves for penetrations of fire-rated floor and wall assemblies unless
openings compatible with firestop system used are fabricated during construction of floor or wall.
E. Cut sleeves to length for mounting flush with both surfaces of walls.
F. Extend sleeves installed in floors 2 inches above finished floor level.
G. Size pipe sleeves to provide 1/4-inch annular clear space between sleeve and raceway or cable,
unless indicated otherwise.
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H. Seal space outside of sleeves with grout for penetrations of concrete and masonry
1. Promptly pack grout solidly between sleeve and wall so no voids remain. Tool exposed
surfaces smooth; protect grout while curing.
I. Interior Penetrations of Non-Fire-Rated Walls and Floors: Seal annular space between sleeve and
raceway or cable, using joint sealant appropriate for size, depth, and location of joint. Comply
with requirements in Division 07 Section "Joint Sealants.".
J. Roof-Penetration Sleeves: Seal penetration of individual raceways and cables with flexible boot-
type flashing units applied in coordination with roofing work.
K. Aboveground, Exterior-Wall Penetrations: Seal penetrations using steel pipe sleeves and
mechanical sleeve seals. Select sleeve size to allow for 1-inch annular clear space between pipe
and sleeve for installing mechanical sleeve seals.
L. Underground, Exterior-Wall Penetrations: Install cast-iron pipe sleeves. Size sleeves to allow for 1-
inch annular clear space between raceway or cable and sleeve for installing mechanical sleeve
seals.
3.6 SLEEVE-SEAL INSTALLATION
A. Install to seal exterior wall penetrations.
B. Use type and number of sealing elements recommended by manufacturer for raceway or cable
material and size. Position raceway or cable in center of sleeve. Assemble mechanical sleeve
seals and install in annular space between raceway or cable and sleeve. Tighten bolts against
pressure plates that cause sealing elements to expand and make watertight seal.
3.7 TOUCH UP PAINT
A. Equipment: Equipment manufacturer’s paint selected to match installed equipment finish.
B. Galvanized Surfaces: Zinc-rich paint recommended by item manufacturer.
C. Non-equipment Surfaces: Match type and color undamaged, existing adjacent finish.
3.8 EDGE GUARD
A. Provide protective trim for exposed and unfinished edges of metal where conductors are subject
to damage, to include, but not limited to, the following:
1. Panelboards
2. Junction boxes
3. Switchgear
4. Disconnect switches
5. Control cabinets
6. Mechanical unit
7. Starters
B. Protective trim shall be:
1. Vinyl covered.
2. Bonded to extruded PVC.
3. Flexible, segmented metal core surrounded by 0.018” thick cold rolled steel.
4. Smooth finish.
5. Heat resistance of 150 degrees F for continuous use.
6. Self-extinguishing.
7. Equal to Protective Trim products available fro McMaster-Carr under “Protective Bumpers
and Trim” section.
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3.9 CONSTRUCTION REQUIREMENTS
A. The Drawings and Specifications are intended to accomplish certain objectives. These
documents do not purport to indicate methods the Contractor is to use in accomplishing the
objectives. They show conduit and wire sizes and they describe the various systems. These
documents describe and size equipment, its general location, usage, support and auxiliary
requirements. They also describe most, but not all, of the materials and their usage for this
project.
B. Contract Documents do not, however, detail certain job requirements. In most instances, they
do not show exact layouts, locations or elevations of any fixtures, conduits, anchors, sleeves,
hangers, slots, holes, outlets, inserts, elbows, or fittings. They do not show final precise location of
equipment by dimension in most instances.
C. In general, conduit in finished areas of the building shall be run concealed in chases, walls, floor
slabs, furrings, and above suspended ceilings, unless noted or indicated otherwise. Should any
condition arise which would cause any conduit to be exposed in finished area, it shall be
immediately called to the Architect's attention and correction of the condition shall be made in
accordance with the Architect's instruction. Runs of conduit shall be grouped wherever it is
feasible to do so. Conduits shall be cut accurately to measurements established at the building
and shall be worked into place without springing or forcing.
1. In unfinished spaces such as equipment rooms, conduit shall be installed parallel to the
building plates, shall be run as high as possible, and shall be square to the building and
securely supported. A high quality of workmanship is expected.
2. Conduits shall not be run above grade, outside, exposed on any external walls, or across
the roof exposed, without the express written permission of the Architect.
3. Conduit openings shall be capped during construction until the systems are closed with
final connections.
D. The exact location of each item shall be determined by reference to the project Contract
Drawings, and to details, equipment drawings, roughing-in drawings, by measurement at the
building, and in cooperation with the various trades. In congested spaces (such as below raised
floors), Contractor shall develop a special hierarchy to coordinate electrical with other trades.
Contact Architect for additional guidance. Minor relocations necessitated by the conditions at
the site or directed by the Owner shall be made without additional cost to the Owner.
E. Coordinate proper locations and sizes of slots, holes or openings in the building structure
pertaining to this work, and for the correct location of sleeves. Place inserts to accommodate
the ultimate installation of hangers in the forms, and set sleeves in forms before concrete is
poured, and in masonry walls while they are under construction. Concealed lines shall be
installed as required by the pace of the job to precede the general construction.
3.10 EQUIPMENT FOUNDATIONS, HANGERS AND SUPPORTS
A. For floor-mounted electrical equipment, provide concrete house-keeping pads not less than 3-
1/2 inches thick, reinforced with No. 3 dowels and No. 3 bars 2'-0" on center each way. Pour
housekeeping pads in forms built of new-dressed 2-inch by 4-inch framing lumber, extending 4
inches on all sides beyond the limits of the installed equipment. Chamfer all corner edges of the
pads all around by means of sheet metal or triangular wood strips nailed to the forms. Place
foundation bolts in the forms before concrete is poured, after locating them correctly from
templates. Allow 1-inch below equipment bases for alignment and of the building where
indicated. Construct foundations in accordance with approved shop drawings. Set equipment
in place on concrete pads; level and align by means of shims prior to making service line
connections, and apply grout. Use 3000 psi, 28-day compressive strength concrete.
B. Suspended equipment shall have supports consisting of manufactured metal framing or hangers
conforming to Section 260529. Also provide engineered vibration isolators for suspended
transformers.
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C. Structural steel stands for support of equipment that is not floor mounted or suspended from
overhead structure shall be constructed the same as specified in heavy duty pipe racks in
Section 260529.
D. Where applicable, concrete foundation pads for outdoor switchgear and transformers shall
conform to electrical utility specifications.
3.11 EQUIPMENT CONNECTIONS
A. Provide equipment furnished under Divisions 21, 22 and 23 and Divisions 26, 27, and 28, and Civil
Engineering documents with necessary power, control, and communication wiring utility
connections completed to allow safe and proper operation of the equipment.
B. Provide similar complete utility connections for equipment furnished under Divisions 1 through 20,
inclusive, by the Owner, or under other contracts, using materials of similar quality to those used in
making connections to similar Divisions 21, 22, 23, 26, 27 and 28 equipment with similar finishes.
C. Apply in writing to the Architect for any information needed to complete this work.
END OF SECTION 26 05 00
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Denton, Texas 26 05 19-1 June 23, 2017
SECTION 26 05 19
LOW-VOLTAGE ELECTRICAL POWER CONDUCTORS AND CABLES
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. This Section includes the following:
1. Building wires and cables rated 600 V and less.
2. Connectors, splices, and terminations rated 600 V and less.
3. Sleeves and sleeve seals for cables.
1.3 DEFINITIONS
A. EPDM: Ethylene-propylene-diene terpolymer rubber.
B. NBR: Acrylonitrile-butadiene rubber.
1.4 SUBMITTALS
A. Product Data: For each type of product indicated.
1.5 QUALITY ASSURANCE
A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70,
Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for
intended use.
B. Comply with NFPA 70.
1.6 COORDINATION
A. Set sleeves in cast-in-place concrete, masonry walls, and other structural components as they are
constructed.
1.7 SPECIAL WARRANTY
A. Heating Cable: Manufacturer agrees to repair or replace electric heating cable that fails within
ten (10) years from date of substantial completion.
PART 2 - PRODUCTS
2.1 CONDUCTORS AND CABLES
A. Copper Conductors: Comply with NEMA WC 70.
B. Conductor Insulation: Comply with NEMA WC 70 for Types THHN-THWN or XHHW.
Old Central Parking Lot Low-Voltage Electrical Power Conductors and Cables
Denton, Texas 26 05 19-2 June 23, 2017
C. Multiconductor Cable: Comply with NEMA WC 70 for metal-clad cable, Type MC with ground
wire.
2.2 CONNECTORS AND SPLICES
A. Description: Factory-fabricated connectors and splices of size, ampacity rating, material, type,
and class for application and service indicated.
B. Connectors: Make splices and connections in conductors using UL listed solderless pressure
connectors. For all connections up to a maximum of one (1) No. 6 with two (2) No. 8 conductors,
use Ideal “Wingnuts” of required sizes. Connections in conductors or combination of conductors
larger than described above shall be made using Burndy cable fittings of the type and size
required for the specific duty. After splice is securely “made-up”, entire assembly shall be
insulated with UL listed insulating tape to a value equivalent to the adjacent insulation. Ground
connections shall be made using Burndy ground clamps or connectors of a type suitable and UL
listed for duty involved.
2.3 PLASTIC-INSULATED, SERIES-RESISTANCE HEATING CABLES
A. Manufacturers: Subject to compliance with requirements, provide products by one of the
following:
1. Delta-Therm Corporation.
2. Easy Heat Inc.
3. NUHEAT.
4. Orbit Manufacturing.
5. Pyrotenax; a division of Tyco Thermal Controls.
6. Raychem; a division of Tyco Thermal Controls.
7. WarmlyYours.com Inc.
8. Watts Radiant Inc.
B. Comply with IEEE 515.1.
C. Heating Element: Single- or dual-stranded resistor wire. Terminate with waterproof,
factory-assembled nonheating leads with connectors at both ends.
D. Electrical Insulating Jacket: Minimum 4.0-mil Kapton with silicone jacket or Tefzel.
E. Capacities and Characteristics:
1. Maximum Heat Output: 6 W/ft..
2. Piping Diameter: Refer to Specification Divisions 22 and 23.
3. Number of Parallel Cables: 2
4. Spiral Wrap Pitch: 3 inches.
5. Verify available voltages and heat-output ratings with specified manufacturer.
6. Volts: 120 V.
7. Phase: 1 PH.
8. Hertz: 60 Hz
9. Full-Load Amperes: 24
10. Minimum Circuit Ampacity: 30 A
11. Maximum Overcurrent Protection: 30 A
F. Remote bulb unit with adjustable temperature range from 30 to 50 deg F.
G. Snap action; open-on-rise, single-pole switch with minimum current rating adequate for
connected cable.
H. Remote bulb on capillary, resistance temperature device, or thermistor for directly sensing
pipe-wall temperature.
I. Corrosion-resistant, waterproof control enclosure.
J. Cable Installation Accessories: Fiberglass tape, heat-conductive putty, cable ties, silicone
end seals and splice kits, and installation clips all furnished by manufacturer, or as
recommended in writing by manufacturer.
K. Warning Labels: Refer to Division 23 Section "Identification for HVAC Piping and
Equipment."
L. Warning Tape: Continuously printed "Electrical Tracing"; vinyl, at least 3 mils thick, and with
pressure-sensitive, permanent, waterproof, self-adhesive back.
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Denton, Texas 26 05 19-3 June 23, 2017
1. Width for Markers on Pipes with OD, Including Insulation, Less Than 6 Inches: 3/4
inch minimum.
2. Width for Markers on Pipes with OD, Including Insulation, 6 Inches or Larger: 1-1/2
inches minimum.
PART 3 - EXECUTION
3.1 CONDUCTOR MATERIAL APPLICATIONS
A. Feeders: Copper. Solid for No. 10 AWG and smaller; stranded for No. 8 AWG and larger.
B. Branch Circuits: Copper. Solid for No. 10 AWG and smaller; stranded for No. 8 AWG and larger.
3.2 INSTALLATION OF CONDUCTORS AND CABLES
A. Conceal cables in finished walls, ceilings, and floors, unless otherwise indicated.
B. Use manufacturer-approved pulling compound or lubricant where necessary; compound used
must not deteriorate conductor or insulation. Do not exceed manufacturer's recommended
maximum pulling tensions and sidewall pressure values.
C. Use pulling means, including fish tape, cable, rope, and basket-weave wire/cable grips, that will
not damage cables or raceway.
D. Install exposed cables parallel and perpendicular to surfaces of exposed structural members,
and follow surface contours where possible.
E. Support cables according to Division 26 Section "Hangers and Supports for Electrical Systems."
F. Identify and color-code conductors and cables according to Division 26 Section "Identification
for Electrical Systems."
3.3 CONNECTIONS
A. Tighten electrical connectors and terminals according to manufacturer's published torque-
tightening values. If manufacturer's torque values are not indicated, use those specified in
UL 486A and UL 486B.
B. Make splices and taps that are compatible with conductor material and that possess equivalent
or better mechanical strength and insulation ratings than unspliced conductors.
1. Use oxide inhibitor in each splice and tap conductor for aluminum conductors.
C. Wiring at Outlets: Install conductor at each outlet, with at least 6 inches of slack.
3.4 INSTALLATION
A. Feeder and branch circuit conductors rated at 600 volt and below shall be sized to prevent
voltage drop values exceeding the limits set forth in the NEC.
B. Care shall be exercised in handling and installing cables to avoid damage. Cables shall be
carefully formed in equipment pull boxes and manholes. Bends in cables shall be larger than the
minimum radii shown in the cable manufacturer's published data for minimum bends that will not
reduce the cable life.
C. MC cable is only allowed within partitions and millwork where approved by owner in writing.
Where used, MC cable must be properly supported per NEC requirements.
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3.5 FIELD QUALITY CONTROL
A. Tests and Inspections:
1. After installing conductors and cables and before electrical circuitry has been energized,
test service entrance and feeder conductors, and conductors feeding the following
critical equipment and services for compliance with requirements.
2. Perform each visual and mechanical inspection and electrical test stated in NETA
Acceptance Testing Specification. Certify compliance with test parameters.
3. Infrared Scanning: After Substantial Completion, but not more than 60 days after Final
Acceptance, perform an infrared scan of each splice in cables and conductors
No. 3 AWG and larger. Remove box and equipment covers so splices are accessible to
portable scanner.
a. Follow-up Infrared Scanning: Perform an additional follow-up infrared scan of each
splice 11 months after date of Substantial Completion.
b. Instrument: Use an infrared scanning device designed to measure temperature or
to detect significant deviations from normal values. Provide calibration record for
device.
c. Record of Infrared Scanning: Prepare a certified report that identifies splices
checked and that describes scanning results. Include notation of deficiencies
detected, remedial action taken and observations after remedial action.
B. Test Reports: Prepare a written report to record the following:
1. Test procedures used.
2. Test results that comply with requirements.
3. Test results that do not comply with requirements and corrective action taken to achieve
compliance with requirements.
C. Remove and replace malfunctioning units and retest as specified above.
D. Compile and maintain all field quality control reports and make available to the AHJ, owner,
architect and engineer as needed.
END OF SECTION 26 05 19
Old Central Parking Lot Grounding and Bonding for Electrical Systems
Denton, Texas 26 05 26-1 June 23, 2017
SECTION 26 05 26
GROUNDING AND BONDING FOR ELECTRICAL SYSTEMS
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. This Section includes methods and materials for grounding systems and equipment, plus the
following special applications:
1. Underground distribution grounding.
2. Common ground bonding with lightning protection system.
1.3 SUBMITTALS
A. Product Data: For each type of product indicated.
1.4 QUALITY ASSURANCE
A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70,
Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for
intended use.
B. Comply with UL 467 for grounding and bonding materials and equipment.
PART 2 - PRODUCTS
2.1 CONDUCTORS
A. Insulated Conductors: Copper or tinned-copper wire or cable insulated for 600 V unless
otherwise required by applicable Code or authorities having jurisdiction.
B. Bare Copper Conductors:
1. Solid Conductors: ASTM B 3.
2. Stranded Conductors: ASTM B 8.
3. Tinned Conductors: ASTM B 33.
4. Bonding Cable: 28 kcmil, 14 strands of No. 17 AWG conductor, 1/4 inch in diameter.
5. Bonding Conductor: No. 4 or No. 6 AWG, stranded conductor.
6. Bonding Jumper: Copper tape, braided conductors, terminated with copper ferrules; 1-
5/8 inches wide and 1/16 inch thick.
7. Tinned Bonding Jumper: Tinned-copper tape, braided conductors, terminated with
copper ferrules; 1-5/8 inches wide and 1/16 inch thick.
C. Grounding Bus: Rectangular bars of annealed copper, 1/4 inch by 4 inches in cross section,
unless otherwise indicated on Drawings; with insulators.
2.2 CONNECTORS
A. Listed and labeled by a nationally recognized testing laboratory acceptable to authorities
having jurisdiction for applications in which used, and for specific types, sizes, and combinations
of conductors and other items connected.
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B. Bolted Connectors for Conductors and Pipes: Copper or copper alloy, bolted pressure-type, with
at least two bolts.
1. Pipe Connectors: Clamp type, sized for pipe.
C. Welded Connectors: Exothermic-welding kits of types recommended by kit manufacturer for
materials being joined and installation conditions.
2.3 GROUNDING ELECTRODES
A. Ground Rods: Copper-clad steel (or stainless steel in highly corrosive soil); 5/8 inch by 10 feet in
length.
B. Chemical-Enhanced Grounding Electrodes: Copper tube, straight or L-shaped, charged with
nonhazardous electrolytic chemical salts.
1. Termination: Factory-attached No. 4/0 AWG bare conductor at least 48 inches long.
2. Backfill Material: Electrode manufacturer's recommended material.
PART 3 - EXECUTION
3.1 APPLICATIONS
A. Conductors: Install solid conductor for No. 8 AWG and smaller, and stranded conductors for
No. 6 AWG and larger, unless otherwise indicated.
B. Underground Grounding Conductors: Install barecopper conductor, No. 2/0 AWG minimum.
1. Bury at least 24 inches below grade.
2. Duct-Bank Grounding Conductor: Bury 12 inches above duct bank when indicated as
part of duct-bank installation.
C. Isolated Grounding Conductors: Green-colored insulation with continuous yellow stripe. On
feeders with isolated ground, identify grounding conductor where visible to normal inspection,
with alternating bands of green and yellow tape, with at least three bands of green and two
bands of yellow.
D. Grounding Bus: Install in electrical and telephone equipment rooms, in rooms housing service
equipment, and elsewhere as indicated.
1. Install bus on insulated spacers 1 inch, minimum, from wall 6 inches above finished floor,
unless otherwise indicated.
E. Conductor Terminations and Connections:
1. Pipe and Equipment Grounding Conductor Terminations: Bolted connectors.
2. Underground Connections: Welded connectors, except at test wells and as otherwise
indicated.
3. Connections to Ground Rods at Test Wells: Bolted connectors.
4. Connections to Structural Steel: Welded connectors.
3.2 GROUNDING OVERHEAD LINES
A. Comply with IEEE C2 grounding requirements.
B. Install 3 parallel ground rods if resistance to ground by a single, ground-rod electrode exceeds 25
ohms.
C. Drive ground rods until tops are 12 inches below finished grade in undisturbed earth.
D. Ground-Rod Connections: Install bolted connectors for underground connections and
connections to rods.
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E. Lightning Arrester Grounding Conductors: Separate from other grounding conductors.
F. Secondary Neutral and Transformer Enclosure: Interconnect and connect to grounding
conductor.
G. Protect grounding conductors running on surface of wood poles with molding extended from
grade level up to and through communication service and transformer spaces.
3.3 GROUNDING UNDERGROUND DISTRIBUTION SYSTEM COMPONENTS
A. Comply with IEEE C2 grounding requirements.
B. Grounding Manholes and Handholes: Install a driven ground rod through manhole or handhole
floor, close to wall, and set rod depth so 4 inches will extend above finished floor. If necessary,
install ground rod before manhole is placed and provide No. 1/0 AWG bare, tinned-copper
conductor from ground rod into manhole through a waterproof sleeve in manhole wall. Protect
ground rods passing through concrete floor with a double wrapping of pressure-sensitive
insulating tape or heat-shrunk insulating sleeve from 2 inches above to 6 inches below concrete.
Seal floor opening with waterproof, nonshrink grout.
C. Grounding Connections to Manhole Components: Bond exposed-metal parts such as inserts,
cable racks, pulling irons, ladders, and cable shields within each manhole or handhole, to ground
rod or grounding conductor. Make connections with No. 4 AWG minimum, stranded, hard-
drawn copper bonding conductor. Train conductors level or plumb around corners and fasten
to manhole walls. Connect to cable armor and cable shields as recommended by manufacturer
of splicing and termination kits.
3.4 EQUIPMENT GROUNDING
A. Install insulated equipment grounding conductors with all feeders and branch circuits.
B. Install insulated equipment grounding conductors with the following items, in addition to those
required by NFPA 70:
1. Feeders and branch circuits.
2. Lighting circuits.
3. Receptacle circuits.
4. Flexible raceway runs.
C. Isolated Equipment Enclosure Circuits: For designated equipment supplied by a branch circuit or
feeder, isolate equipment enclosure from supply circuit raceway with a nonmetallic raceway
fitting listed for the purpose. Install fitting where raceway enters enclosure, and install a separate
insulated equipment grounding conductor. Isolate conductor from raceway and from
panelboard grounding terminals. Terminate at equipment grounding conductor terminal of the
applicable derived system or service, unless otherwise indicated.
D. Metal Poles Supporting Outdoor Lighting Fixtures: Install grounding electrode and a separate
insulated equipment grounding conductor in addition to grounding conductor installed with
branch-circuit conductors.
3.5 INSTALLATION
A. Grounding Conductors: Route along shortest and straightest paths possible, unless otherwise
indicated or required by Code. Avoid obstructing access or placing conductors where they may
be subjected to strain, impact, or damage.
B. Common Ground Bonding with Lightning Protection System: Comply with NFPA 780 and UL 96
when interconnecting with lightning protection system. Bond electrical power system ground
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directly to lightning protection system grounding conductor at closest point to electrical service
grounding electrode. Use bonding conductor sized same as system grounding electrode
conductor, and install in conduit.
C. Ground Rods: Drive rods until tops are 2 inches below finished floor or final grade, unless
otherwise indicated.
1. Interconnect ground rods with grounding electrode conductor below grade and as
otherwise indicated. Make connections without exposing steel or damaging coating, if
any.
2. For grounding electrode system, install at least three rods spaced at least one-rod length
from each other and located at least the same distance from other grounding electrodes,
and connect to the service grounding electrode conductor.
D. Test Wells: Ground rod driven through drilled hole in bottom of handhole. Handholes are
specified in Division 26 Section "Underground Ducts and Raceways for Electrical Systems," and
shall be at least 12 inches deep, with cover.
1. Test Wells: Install at least one test well for each service, unless otherwise indicated. Install
at the ground rod electrically closest to service entrance. Set top of test well flush with
finished grade or floor.
E. Bonding Straps and Jumpers: Install in locations accessible for inspection and maintenance,
except where routed through short lengths of conduit.
1. Bonding to Structure: Bond straps directly to basic structure, taking care not to penetrate
any adjacent parts.
2. Bonding to Equipment Mounted on Vibration Isolation Hangers and Supports: Install so
vibration is not transmitted to rigidly mounted equipment.
3. Use exothermic-welded connectors for outdoor locations, but if a disconnect-type
connection is required, use a bolted clamp.
F. Bonding Interior Metal Ducts: Bond metal air ducts to equipment grounding conductors of
associated fans, blowers, electric heaters, and air cleaners. Install tinned bonding jumper to
bond across flexible duct connections to achieve continuity.
G. Grounding for Steel Building Structure: Install a driven ground rod at base of each corner column
and at intermediate exterior columns at distances not more than 60 feet apart.
H. Ground Ring: Install a grounding conductor, electrically connected to each building structure
ground rod and to each indicated item, extending around the perimeter of area or item
indicated.
1. Install tinned-copper conductor not less than No. 2/0 AWG for ground ring and for taps to
building steel.
2. Bury ground ring not less than 24 inches from building foundation.
I. Ufer Ground (Concrete-Encased Grounding Electrode): Fabricate according to NFPA 70, using a
minimum of 20 feet of bare copper conductor not smaller than No. 4 AWG.
1. If concrete foundation is less than 20 feet long, coil excess conductor within base of
foundation.
2. Bond grounding conductor to reinforcing steel in at least four locations and to anchor
bolts. Extend grounding conductor below grade and connect to building grounding grid
or to grounding electrode external to concrete.
3.6 FIELD QUALITY CONTROL
A. Perform the following tests and inspections and prepare test reports:
1. After installing grounding system but before permanent electrical circuits have been
energized, test for compliance with requirements.
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2. Test completed grounding system at each location where a maximum ground-resistance
level is specified, at service disconnect enclosure grounding terminal, at ground test
wells, and at individual ground rods. Make tests at ground rods before any conductors are
connected.
a. Measure ground resistance not less than two full days after last trace of precipitation
and without soil being moistened by any means other than natural drainage or
seepage and without chemical treatment or other artificial means of reducing
natural ground resistance.
b. Perform tests by fall-of-potential method according to IEEE 81.
3. Prepare dimensioned drawings locating each test well, ground rod and ground rod
assembly, and other grounding electrodes. Identify each by letter in alphabetical order,
and key to the record of tests and observations. Include the number of rods driven and
their depth at each location, and include observations of weather and other phenomena
that may affect test results. Describe measures taken to improve test results.
B. Report measured ground resistances that exceed the following values:
1. Power and Lighting Equipment or System with Capacity 500 kVA and Less: 10 ohms.
2. Power and Lighting Equipment or System with Capacity 500 to 1000 kVA: 5 ohms.
3. Power and Lighting Equipment or System with Capacity More Than 1000 kVA: 3 ohms.
4. Power Distribution Units or Panelboards Serving Electronic Equipment: 3 ohm(s).
5. Substations and Pad-Mounted Equipment: 5 ohms.
6. Manhole Grounds: 10 ohms.
C. Excessive Ground Resistance: If resistance to ground exceeds specified values, notify Architect
promptly and include recommendations to reduce ground resistance.
D. Compile and maintain all field quality control reports and make available to the AHJ, owner,
architect and engineer as needed.
END OF SECTION 26 05 26
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SECTION 26 05 29
HANGERS AND SUPPORTS FOR ELECTRICAL SYSTEMS
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. This Section includes the following:
1. Hangers and supports for electrical equipment and systems.
2. Construction requirements for concrete bases.
1.3 DEFINITIONS
A. EMT: Electrical metallic tubing.
B. IMC: Intermediate metal conduit.
C. RMC: Rigid metal conduit.
1.4 PERFORMANCE REQUIREMENTS
A. Delegated Design: Design supports for multiple raceways, including comprehensive engineering
analysis by a qualified professional engineer, using performance requirements and design criteria
indicated.
B. Design supports for multiple raceways capable of supporting combined weight of supported
systems and its contents.
C. Design equipment supports capable of supporting combined operating weight of supported
equipment and connected systems and components.
D. Rated Strength: Adequate in tension, shear, and pullout force to resist maximum loads
calculated or imposed for this Project, with a minimum structural safety factor of five times the
applied force.
1.5 SUBMITTALS
A. Product Data: For the following:
1. Steel slotted support systems.
2. Nonmetallic slotted support systems.
1.6 QUALITY ASSURANCE
A. Welding: Qualify procedures and personnel according to AWS D1.1/D1.1M, "Structural Welding
Code - Steel."
B. Comply with NFPA 70.
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1.7 COORDINATION
A. Coordinate size and location of concrete bases. Cast anchor-bolt inserts into bases. Concrete,
reinforcement, and formwork requirements are specified in Division 03.
B. Coordinate installation of roof curbs, equipment supports, and roof penetrations. These items are
specified in Division 07 Section "Roof Accessories."
PART 2 - PRODUCTS
2.1 SUPPORT, ANCHORAGE, AND ATTACHMENT COMPONENTS
A. Steel Slotted Support Systems: Comply with MFMA-4, factory-fabricated components for field
assembly.
1. Metallic Coatings: Hot-dip galvanized after fabrication and applied according to MFMA-
4.
2. Nonmetallic Coatings: Manufacturer's standard PVC, polyurethane, or polyester coating
applied according to MFMA-4.
3. Painted Coatings: Manufacturer's standard painted coating applied according to MFMA-
4.
4. Channel Dimensions: Selected for applicable load criteria.
B. Nonmetallic Slotted Support Systems: Structural-grade, factory-formed, glass-fiber-resin channels
and angles with 9/16-inch- diameter holes at a maximum of 8 inches o.c., in at least 1 surface.
1. Fittings and Accessories: Products of channel and angle manufacturer and designed for
use with those items.
2. Fitting and Accessory Materials: Same as channels and angles, except metal items may
be stainless steel.
3. Rated Strength: Selected to suit applicable load criteria.
C. Raceway and Cable Supports: As described in NECA 1 and NECA 101.
D. Conduit and Cable Support Devices: Steel hangers, clamps, and associated fittings, designed for
types and sizes of raceway or cable to be supported.
E. Support for Conductors in Vertical Conduit: Factory-fabricated assembly consisting of threaded
body and insulating wedging plug or plugs for non-armored electrical conductors or cables in
riser conduits. Plugs shall have number, size, and shape of conductor gripping pieces as required
to suit individual conductors or cables supported. Body shall be malleable iron.
F. Structural Steel for Fabricated Supports and Restraints: ASTM A 36/A 36M, steel plates, shapes,
and bars; black and galvanized.
G. Mounting, Anchoring, and Attachment Components: Items for fastening electrical items or their
supports to building surfaces include the following:
1. Powder-Actuated Fasteners: Threaded-steel stud, for use in hardened portland cement
concrete, steel, or wood, with tension, shear, and pullout capacities appropriate for
supported loads and building materials where used. Not approved for light weight
concrete or slabs less than six (6) inches thick.
2. Mechanical-Expansion Anchors: Insert-wedge-type, zinc-coated steel, for use in hardened
portland cement concrete with tension, shear, and pullout capacities appropriate for
supported loads and building materials in which used.
3. Concrete Inserts: Steel or malleable-iron, slotted support system units similar to MSS
Type 18; complying with MFMA-4 or MSS SP-58.
4. Clamps for Attachment to Steel Structural Elements: MSS SP-58, type suitable for attached
structural element.
5. Through Bolts: Structural type, hex head, and high strength. Comply with ASTM A 325.
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6. Toggle Bolts: All-steel springhead type.
7. Hanger Rods: Threaded steel.
2.2 FABRICATED METAL EQUIPMENT SUPPORT ASSEMBLIES
A. Description: Welded or bolted, structural-steel shapes, shop or field fabricated to fit dimensions of
supported equipment.
B. Materials: Comply with requirements in Division 05 Section "Metal Fabrications" for steel shapes
and plates.
PART 3 - EXECUTION
3.1 APPLICATION
A. Comply with NECA 1 and NECA 101 for application of hangers and supports for electrical
equipment and systems except if requirements in this Section are stricter.
B. Maximum Support Spacing and Minimum Hanger Rod Size for Raceway: Space supports for EMT,
IMC, and RMC as required by scheduled in NECA 1, where its Table 1 lists maximum spacings less
than stated in NFPA 70. Minimum rod size shall be 1/4 inch in diameter.
C. Multiple Raceways or Cables: Install trapeze-type supports fabricated with steel slotted support
system, sized so capacity can be increased by at least 25 percent in future without exceeding
specified design load limits.
1. Secure raceways and cables to these supports with two-bolt conduit clamps or single-bolt
conduit clamps using spring friction action for retention in support channel.
3.2 SUPPORT INSTALLATION
A. Comply with NECA 1 and NECA 101 for installation requirements except as specified in this Article.
B. Raceway Support Methods: Conduits or raceways may not be supported by openings through
structure members.
C. Strength of Support Assemblies: Where not indicated, select sizes of components so strength will
be adequate to carry present and future static loads within specified loading limits. Minimum
static design load used for strength determination shall be weight of supported components plus
200 lb.
D. Mounting and Anchorage of Surface-Mounted Equipment and Components: Anchor and fasten
electrical items and their supports to building structural elements by the following methods unless
otherwise indicated by code:
1. To Wood: Fasten with lag screws or through bolts.
2. To New Concrete: Bolt to concrete inserts.
3. To Masonry: Approved toggle-type bolts on hollow masonry units and expansion anchor
fasteners on solid masonry units.
4. To Existing Concrete: Expansion anchor fasteners.
5. Instead of expansion anchors, powder-actuated driven threaded studs provided with lock
washers and nuts may be used in existing standard-weight concrete 4 inches thick or
greater. Do not use for anchorage to lightweight-aggregate concrete or for slabs less
than 4 inches thick.
6. To Steel: Beam clamps (MSS Type 19, 21, 23, 25, or 27) complying with MSS SP-69.
7. To Light Steel: Sheet metal screws.
8. Items Mounted on Hollow Walls and Nonstructural Building Surfaces: Mount cabinets,
panelboards, disconnect switches, control enclosures, pull and junction boxes,
transformers, and other devices on slotted-channel racks attached to substrate.
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E. Drill holes for expansion anchors in concrete at locations and to depths that avoid reinforcing
bars.
3.3 INSTALLATION OF FABRICATED METAL SUPPORTS
A. Comply with installation requirements in Division 05 Section "Metal Fabrications" for site-fabricated
metal supports.
B. Cut, fit, and place miscellaneous metal supports accurately in location, alignment, and elevation
to support and anchor electrical materials and equipment.
C. Field Welding: Comply with AWS D1.1/D1.1M.
3.4 CONCRETE BASES
A. Construct concrete bases of dimensions indicated but not less than 4 inches larger in both
directions than supported unit, and so anchors will be a minimum of 10 bolt diameters from edge
of the base.
B. Use 3000-psi, 28-day compressive-strength concrete. Concrete materials, reinforcement, and
placement requirements are specified in Division 03 Section "Cast-in-Place Concrete."
C. Anchor equipment to concrete base.
1. Place and secure anchorage devices. Use supported equipment manufacturer's setting
drawings, templates, diagrams, instructions, and directions furnished with items to be
embedded.
2. Install anchor bolts to elevations required for proper attachment to supported equipment.
3. Install anchor bolts according to anchor-bolt manufacturer's written instructions.
3.5 PAINTING
A. Touchup: Clean field welds and abraded areas of shop paint. Paint exposed areas immediately
after erecting hangers and supports. Use same materials as used for shop painting. Comply with
SSPC-PA 1 requirements for touching up field-painted surfaces.
1. Apply paint by brush or spray to provide minimum dry film thickness of 2.0 mils.
B. Touchup: Comply with requirements in Division 09 painting Sections for cleaning and touchup
painting of field welds, bolted connections, and abraded areas of shop paint on miscellaneous
metal.
C. Galvanized Surfaces: Clean welds, bolted connections, and abraded areas and apply
galvanizing-repair paint to comply with ASTM A 780.
END OF SECTION 26 05 29
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SECTION 26 05 33
RACEWAY AND BOXES FOR ELECTRICAL SYSTEMS
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. This Section includes raceways, fittings, boxes, enclosures, and cabinets for electrical wiring.
B. Related Sections include the following:
1. Division 26 Section "Underground Ducts and Raceways for Electrical Systems" for exterior
ductbanks, manholes, and underground utility construction.
1.3 DEFINITIONS
A. EMT: Electrical metallic tubing.
B. ENT: Electrical nonmetallic tubing.
C. EPDM: Ethylene-propylene-diene terpolymer rubber.
D. FMC: Flexible metal conduit.
E. IMC: Intermediate metal conduit.
F. LFMC: Liquidtight flexible metal conduit.
G. LFNC: Liquidtight flexible nonmetallic conduit.
H. NBR: Acrylonitrile-butadiene rubber.
I. RNC: Rigid nonmetallic conduit.
1.4 SUBMITTALS
A. Product Data: For surface raceways, wireways and fittings, floor boxes, hinged-cover enclosures,
and cabinets.
1.5 QUALITY ASSURANCE
A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70,
Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for
intended use.
B. Comply with NFPA 70.
Old Central Parking Lot Raceway and Boxes for Electrical Systems
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PART 2 - PRODUCTS
2.1 METAL CONDUIT AND TUBING
A. Rigid Steel Conduit: ANSI C80.1.
B. IMC: ANSI C80.6.
C. PVC-Coated Steel Conduit: PVC-coated rigid steel conduit.
1. Comply with NEMA RN 1.
2. Coating Thickness: 0.040 inch, minimum.
D. EMT: ANSI C80.3.
E. FMC: Zinc-coated steel.
F. LFMC: Flexible steel conduit with PVC jacket.
G. Fittings for Conduit (Including all Types and Flexible and Liquidtight), EMT, and Cable: NEMA FB 1;
listed for type and size raceway with which used, and for application and environment in which
installed.
1. Conduit Fittings for Hazardous (Classified) Locations: Comply with UL 886.
2. Fittings for EMT: Steel, compression type.
3. Coating for Fittings for PVC-Coated Conduit: Minimum thickness, 0.040 inch, with
overlapping sleeves protecting threaded joints.
4. Fittings for RMC and IMC: Steel, threaded.
H. Joint Compound for Rigid Steel Conduit or IMC: Listed for use in cable connector assemblies,
and compounded for use to lubricate and protect threaded raceway joints from corrosion and
enhance their conductivity.
2.2 NONMETALLIC CONDUIT AND TUBING
A. ENT: NEMA TC 13.
B. RNC: NEMA TC 2, Type EPC-40-PVC, unless otherwise indicated.
C. LFNC: UL 1660.
D. Fittings for ENT and RNC: NEMA TC 3; match to conduit or tubing type and material. Provide
watertight joints on all underground installations.
E. Fittings for LFNC: UL 514B.
2.3 METAL WIREWAYS
A. Description: Sheet metal sized and shaped as indicated, NEMA 250, Type 3R, unless otherwise
indicated.
B. Fittings and Accessories: Include couplings, offsets, elbows, expansion joints, adapters, hold-
down straps, end caps, and other fittings to match and mate with wireways as required for
complete system.
C. Wireway Covers: Hinged type unless noted otherwise on the drawings.
D. Finish: Manufacturer's standard enamel finish.
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2.4 SURFACE RACEWAYS
A. Surface Metal Raceways: Galvanized steel with snap-on covers. Manufacturer's standard
enamel finish in color selected by Architect.
B. Surface Nonmetallic Raceways: Two-piece construction, manufactured of rigid PVC with texture
and color selected by Architect from manufacturer's standard colors.
2.5 BOXES, ENCLOSURES, AND CABINETS
A. Junction and pull boxes 100 cubic inches in volume and smaller shall be standard outlet boxes.
Those larger than 100 cubic inches shall be constructed as specified for cabinet construction and
shall be furnished with covers. Boxes shall be factory-fabricated from galvanized steel to prevent
corrosion.
B. Size boxes in accordance with the requirements of the NEC. Boxes not used for service entrance
duty shall be no smaller than 4 inches square and 1-1/2 inches deep with covers accessible at all
times. Set boxes on concealed conduits with covers flush with the finished wall or ceiling line.
Provide junction and pull boxes of appropriate dimensions for conduits and conductors noted,
where shown and where necessary for the installation and pulling of cables and wires. Install
covers on junction boxes and condulets after wiring and connections are completed.
C. At each outlet shown provide a box of suitable size and construction. Provide plaster rings,
where required, in connection with adjacent plaster finishes. In unfinished masonry walls provide
handy boxes of such size as to permit their being completely covered by the device plates. All
boxes shall be galvanized steel. Unused knockouts in boxes shall be filled or capped before
plates or devices are installed.
D. Ceiling outlets shall be 4-inch square boxes of the appropriate depth, furnished with 3/8-inch
fixture studs fastened through from backs of the boxes. For plaster surfaces provide plaster rings
and ears.
E. Sheet Metal Outlet and Device Boxes: NEMA OS 1.
F. Cast-Metal Outlet and Device Boxes: NEMA FB 1, aluminum, Type FD, with gasketed cover.
G. Metal Floor Boxes: Cast or sheet metal, fully adjustable, rectangular.
H. Nonmetallic Floor Boxes: Nonadjustable, round.
I. Small Sheet Metal Pull and Junction Boxes: NEMA OS 1.
J. Cast-Metal Access, Pull, and Junction Boxes: NEMA FB 1, cast aluminum with gasketed cover.
K. Hinged-Cover Enclosures: NEMA 250, Type 1, with continuous-hinge cover with flush latch, unless
otherwise indicated.
L. Cabinets:
1. NEMA 250, Type 1, galvanized-steel box with removable interior panel and removable
front, finished inside and out with manufacturer's standard enamel.
2. Hinged door in front cover with flush latch and concealed hinge.
3. Key latch to match panelboards.
4. Metal barriers to separate wiring of different systems and voltage.
5. Accessory feet where required for freestanding equipment.
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2.6 HANDHOLES AND BOXES FOR EXTERIOR UNDERGROUND WIRING
A. Description: Comply with SCTE 77.
1. Color of Frame and Cover: Gray.
2. Configuration: Units shall be designed for flush burial and have integral closed bottom,
unless otherwise indicated.
3. Cover: Weatherproof, secured by tamper-resistant locking devices and having structural
load rating consistent with enclosure.
4. Cover Finish: Nonskid finish shall have a minimum coefficient of friction of 0.50.
5. Cover Legend: Molded lettering, as indicated for each service.
6. Conduit Entrance Provisions: Conduit-terminating fittings shall mate with entering ducts for
secure, fixed installation in enclosure wall.
B. Polymer-Concrete Handholes and Boxes with Polymer-Concrete Cover: Molded of sand and
aggregate, bound together with polymer resin, and reinforced with steel or fiberglass or a
combination of the two. Not approved for areas subject to vehicle traffic.
C. Fiberglass Handholes and Boxes with Polymer-Concrete Frame and Cover: Sheet-molded,
fiberglass-reinforced, polyester-resin enclosure joined to polymer-concrete top ring or frame. Not
approved for areas subject to vehicle traffic.
D. Fiberglass Handholes and Boxes: Molded of fiberglass-reinforced polyester resin, with covers of
polymer concrete or fiberglass.
2.7 SLEEVES FOR RACEWAYS
A. Steel Pipe Sleeves: ASTM A 53/A 53M, Type E, Grade B, Schedule 40, galvanized steel, plain ends.
B. Sleeves for Rectangular Openings: Galvanized sheet steel with minimum 0.052- or 0.138-inch
thickness as indicated and of length to suit application.
C. Coordinate sleeve selection and application with selection and application of firestopping
specified in Division 07 Section "Penetration Firestopping."
2.8 SLEEVE SEALS
A. Description: Modular sealing device, designed for field assembly, to fill annular space between
sleeve and cable.
1. Sealing Elements: EPDM interlocking links shaped to fit surface of cable or conduit.
Include type and number required for material and size of raceway or cable.
2. Pressure Plates: Stainless steel. Include two for each sealing element.
3. Connecting Bolts and Nuts: Stainless steel of length required to secure pressure plates to
sealing elements. Include one for each sealing element.
PART 3 - EXECUTION
3.1 RACEWAY APPLICATION
A. Outdoors: Apply raceway products as specified below, unless otherwise indicated:
1. Exposed Conduit: Rigid steel conduit RNC, Type EPC-80-PVC.
2. Concealed Conduit, Aboveground: Rigid steel conduit RNC, Type EPC-40-PVC.
3. Underground Conduit: RNC, Type EPC- 40-PVC, direct buried.
4. Connection to Vibrating Equipment (Including Transformers and Hydraulic, Pneumatic,
Electric Solenoid, or Motor-Driven Equipment): LFMC.
5. Boxes and Enclosures, Aboveground: NEMA 250, Type 3R.
6. Application of Handholes and Boxes for Underground Wiring:
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Denton, Texas 26 05 33-5 June 23, 2017
a. Handholes and Pull Boxes in Driveway, Parking Lot, and Off-Roadway Locations,
Subject to Occasional, Nondeliberate Loading by Heavy Vehicles: Polymer
concrete or fiberglass-reinforced polyester resin, SCTE 77, Tier 15 structural load
rating.
b. Handholes and Pull Boxes in Sidewalk and Similar Applications with a Safety Factor
for Nondeliberate Loading by Vehicles: Polymer-concrete units, SCTE 77, Tier 8
structural load rating.
c. Handholes and Pull Boxes Subject to Light-Duty Pedestrian Traffic Only: Fiberglass-
reinforced polyester resin, structurally tested according to SCTE 77 with 3000-lbf
vertical loading.
B. Comply with the following indoor applications, unless otherwise indicated:
1. Exposed, Not Subject to Physical Damage: EMT.
2. Exposed, Not Subject to Severe Physical Damage: EMT.
3. Exposed and Subject to Severe Physical Damage: Rigid steel conduit. Includes raceways
in the following locations:
a. Loading dock.
b. Corridors used for traffic of mechanized carts, forklifts, and pallet-handling units.
4. Connection to Vibrating Equipment (Including Transformers and Hydraulic, Pneumatic,
Electric Solenoid, or Motor-Driven Equipment): FMC, except use LFMC in damp or wet
locations.
5. Damp or Wet Locations: PVC-coated rigid steel conduit.
6. Raceways for Concealed General Purpose Distribution of Optical Fiber or Communications
Cable: EMT.
7. Boxes and Enclosures: NEMA 250, Type 1, except use NEMA 250, Type 4, nonmetallic in
damp or wet locations.
C. Minimum Raceway Size: 3/4-inch trade size.
D. Raceway Fittings: Compatible with raceways and suitable for use and location.
1. Rigid and Intermediate Steel Conduit: Use threaded rigid steel conduit fittings, unless
otherwise indicated.
2. PVC Externally Coated, Rigid Steel Conduits: Use only fittings listed for use with that
material. Patch and seal all joints, nicks, and scrapes in PVC coating after installing
conduits and fittings. Use sealant recommended by fitting manufacturer.
E. Install nonferrous conduit or tubing for circuits operating above 60 Hz. Where aluminum
raceways are installed for such circuits and pass through concrete, install in nonmetallic sleeve.
3.2 INSTALLATION
A. Comply with NECA 1 for installation requirements applicable to products specified in Part 2
except where requirements on Drawings or in this Article are stricter.
B. Keep raceways at least 6 inches away from parallel runs of flues and steam or hot-water pipes.
Install horizontal raceway runs above water and steam piping.
C. Complete raceway installation before starting conductor installation.
D. Support raceways as specified in Division 26 Section "Hangers and Supports for Electrical Systems."
E. Arrange stub-ups so curved portions of bends are not visible above the finished slab.
F. Install no more than the equivalent of three 90-degree bends in any conduit run except for
communications conduits, for which fewer bends are allowed.
G. Conceal conduit and EMT within finished walls, ceilings, and floors, unless otherwise indicated.
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Denton, Texas 26 05 33-6 June 23, 2017
H. Raceways Embedded in Slabs:
1. Run conduit larger than 1-inch trade size, parallel or at right angles to main reinforcement.
Where at right angles to reinforcement, place conduit close to slab support.
2. Arrange raceways to cross building expansion joints at right angles with expansion fittings.
I. Threaded Conduit Joints, Exposed to Wet, Damp, Corrosive, or Outdoor Conditions: Apply listed
compound to threads of raceway and fittings before making up joints. Follow compound
manufacturer's written instructions.
J. Raceway Terminations at Locations Subject to Moisture or Vibration: Use insulating bushings to
protect conductors, including conductors smaller than No. 4 AWG.
K. Install pull wires in empty raceways. Use polypropylene or monofilament plastic line with not less
than 200-lb tensile strength. Leave at least 36 inches of slack at each end of pull wire.
L. Raceways for Optical Fiber and Communications Cable: Install metallic raceways as follows:
1. 3/4-Inch Trade Size and Smaller: Install raceways in maximum lengths of 50 feet.
2. 1-Inch Trade Size and Larger: Install raceways in maximum lengths of 75 feet.
3. Install with a maximum of two 90-degree bends or equivalent for each length of raceway
unless Drawings show stricter requirements. Separate lengths with pull or junction boxes or
terminations at distribution frames or cabinets where necessary to comply with these
requirements.
M. Install raceway sealing fittings at suitable, approved, and accessible locations and fill them with
listed sealing compound. For concealed raceways, install each fitting in a flush steel box with a
blank cover plate having a finish similar to that of adjacent plates or surfaces. Install raceway
sealing fittings at the following points:
1. Where conduits pass from warm to cold locations, such as boundaries of refrigerated
spaces.
2. Where otherwise required by NFPA 70.
N. Flexible Conduit Connections: Use maximum of 72 inches of flexible conduit for equipment
subject to vibration, noise transmission, or movement; and for transformers and motors.
1. Use LFMC in damp or wet locations subject to severe physical damage.
2. Use LFMC or LFNC in damp or wet locations not subject to severe physical damage.
O. Recessed Boxes in Masonry Walls: Saw-cut opening for box in center of cell of masonry block,
and install box flush with surface of wall.
P. Set metal floor boxes level and flush with finished floor surface.
Q. Set nonmetallic floor boxes level. Trim after installation to fit flush with finished floor surface.
R. For systems 600 volts and below:
1. Underground conduits and conduits buried under concrete slabs on the ground shall be
PVC conduit, or shall be rigid steel conduit having a protective wrapping. All stubups of
PVC conduit runs shall be made with rigid galvanized steel conduit. (Provide corrosion
protection where the conduit emerges from the concrete, from 3-inches below top of
concrete to 3-inches above.)
2. Metal conduits encased in concrete shall be galvanized rigid steel.
3. Conduits exposed to the weather, and conduits above the roof of the building shall be
galvanized rigid steel, having a corrosion-protective coating as specified above.
4. Conduits shall be exposed in mechanical equipment rooms. Where exposed conduits are
located at or within five feet (5') of the floor, they shall be galvanized rigid steel conduit or
IMC. Other conduits on this project may be rigid, IMC, or EMT as permitted by code.
5. Conduits shall be of such size and so installed that the conductors may be drawn through
without injury or excessive strain, shall be secured at cabinets and boxes of all types, with
Old Central Parking Lot Raceway and Boxes for Electrical Systems
Denton, Texas 26 05 33-7 June 23, 2017
galvanized locknuts, both inside and outside, and shall have appropriate bushings inside.
Bushings may be of the insulating type or may be galvanized, unless bushings are used for
grounding, in which case they shall be galvanized.
6. Threaded conduits shall be reamed after threading, and shall be kept tightly closed at
each end and in dry locations during construction. Conduits shall be swabbed out before
the wires are pulled through.
7. Conduit which is larger than 1 inch shall not be run horizontally within any floor slab, and
where floor slab construction is no more than 2-1/2 inches thick no conduits shall be run
horizontally within such concrete construction. Should it become necessary for a large
number of conduits to be stubbed up at one location (for instance at a telephone
terminal board or at a panelboard) such conduits shall be separated by at least 12 inches
if run within the floor slab, and if this is not possible, conduits shall be extended into the
attic space and then stubbed into the terminal location.
8. Conduits piercing roofs shall be placed in position in time to be flashed.
9. Final connections to motors shall be made with 12-inch or longer sections of flexible metal
conduit. Flexible metal conduits shall also be employed to effect final connections to
recessed lighting fixtures. Flexible metal conduits in damp locations and in mechanical
equipment rooms shall be neoprene-jacketed, UL listed watertight, complete with WP
connections.
10. Metallic conduits shall be grounded in accordance with the requirements of the NEC.
11. Conduits shall not be installed within 3 inches of hot pipes except where crossings are
unavoidable, in which case a clearance of 1 inch is permissible.
12. Provide junction, pull and splice boxes in conduit runs as required by the NEC and
elsewhere as required to accommodate installation.
13. All conduits shall have a separate grounding conductor installed in accordance with NEC
requirements.
14. Where overhead junction boxes are provided for future extension of wiring or to
accommodate tenant needs, identify such boxes as "120-volt workstation clean", "277-volt
normal", or "277-volt emergency", etc. with circuit numbers, to facilitate identification and
future extensions from the boxes.
15. Provide expansion couplings for all runs crossing building expansion joints. Provide
expansion couplings for PVC conduit exposed and subject to temperature variations per
Code.
16. Provide flexible liquidtight metallic conduit between all underground conduits stubbed up
through slabs and terminations interior to building.
S. PVC telecommunications raceways underground shall be planned and installed with extreme
care, especially under the building pad area. Contractor shall prepare large scale plan and
profile drawings and pre-determine all bend lengths/radii prior to performing work.
T. Direct-Buried Conduit:
1. Excavate trench bottom to provide firm and uniform support for conduit. Prepare trench
bottom as specified in Division 31 Section "Earth Moving" for pipe less than 6 inches in
nominal diameter.
2. Install backfill as specified in Division 31 Section "Earth Moving."
3. After installing conduit, backfill and compact. Start at tie-in point, and work toward end of
conduit run, leaving conduit at end of run free to move with expansion and contraction as
temperature changes during this process. Firmly hand tamp backfill around conduit to
provide maximum supporting strength. Backfill shall consist of kiln dried grout sand from
three inches below bottom surface of lowest conduit in duct bank to three inches above
top surface of highest conduit in duct bank. Sand shall be agitated with vibrator to insure
void spaces around conduit are filled. Cement stabilized sand in a flowable fill mixture may
be used as an alternative to kiln dried sand. After placing controlled backfill to within 12
inches of finished grade, make final conduit connection at end of run and complete
backfilling with normal compaction as specified in Division 31 Section "Earth Moving."
4. Install manufactured rigid steel conduit elbows for stub-ups at poles and equipment and at
building entrances through the floor.
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Denton, Texas 26 05 33-8 June 23, 2017
a. Couple steel conduits to ducts with adapters designed for this purpose, and encase
coupling with 3 inches of concrete.
b. For stub-ups at equipment mounted on outdoor concrete bases, extend steel
conduit horizontally a minimum of 60 inches from edge of equipment pad or
foundation. Install insulated grounding bushings on terminations at equipment.
5. Warning Planks: Bury warning planks approximately 12 inches above direct-buried
conduits, placing them 24 inches o.c. Align planks along the width and along the
centerline of conduit.
6. Direct-bury conduits that are routed parallel to one another shall be supported with
saddles and spacers to insure a minimum of 7.5 inches between conduit centerlines in any
direction. For conduits larger than 4 inches in diameter, there shall be a minimum of 3
inches separation from outside wall to outside wall in any direction.
7. Parallel direct-bury conduits shall be evenly spaced and shall maintain spacing through
the entire length of the conduits.
3.3 INSTALLATION OF UNDERGROUND HANDHOLES AND BOXES
A. Install handholes and boxes level and plumb and with orientation and depth coordinated with
connecting conduits to minimize bends and deflections required for proper entrances.
B. Unless otherwise indicated, support units on a level bed of crushed stone or gravel, graded from
1/2-inch sieve to No. 4 sieve and compacted to same density as adjacent undisturbed earth.
C. Elevation: In paved areas, set so cover surface will be flush with finished grade. Set covers of
other enclosures 1 inch above finished grade.
D. Install handholes and boxes with bottom below the frost line, below grade.
E. Install removable hardware, including pulling eyes, cable stanchions, cable arms, and insulators,
as required for installation and support of cables and conductors and as indicated. Select arm
lengths to be long enough to provide spare space for future cables, but short enough to preserve
adequate working clearances in the enclosure.
F. Field-cut openings for conduits according to enclosure manufacturer's written instructions. Cut
wall of enclosure with a tool designed for material to be cut. Size holes for terminating fittings to
be used, and seal around penetrations after fittings are installed.
3.4 SLEEVE INSTALLATION FOR ELECTRICAL PENETRATIONS
A. Coordinate sleeve selection and application with selection and application of firestopping
specified in Division 07 Section "Penetration Firestopping."
B. Concrete Slabs and Walls: Install sleeves for penetrations unless core-drilled holes or formed
openings are used. Install sleeves during erection of slabs and walls.
C. Use pipe sleeves unless penetration arrangement requires rectangular sleeved opening.
D. Rectangular Sleeve Minimum Metal Thickness:
1. For sleeve cross-section rectangle perimeter less than 50 inches and no side greater than
16 inches, thickness shall be 0.052 inch.
2. For sleeve cross-section rectangle perimeter equal to, or greater than, 50 inches and 1 or
more sides equal to, or greater than, 16 inches, thickness shall be 0.138 inch.
E. Fire-Rated Assemblies: Install sleeves for penetrations of fire-rated floor and wall assemblies unless
openings compatible with firestop system used are fabricated during construction of floor or wall.
F. Cut sleeves to length for mounting flush with both surfaces of walls.
Old Central Parking Lot Raceway and Boxes for Electrical Systems
Denton, Texas 26 05 33-9 June 23, 2017
G. Extend sleeves installed in floors 2 inches above finished floor level.
H. Size pipe sleeves to provide 1/4-inch annular clear space between sleeve and raceway unless
sleeve seal is to be installed.
I. Seal space outside of sleeves with grout for penetrations of concrete and masonry and with
approved joint compound for gypsum board assemblies.
3.5 SLEEVE-SEAL INSTALLATION
A. Install to seal underground, exterior wall penetrations.
B. Use type and number of sealing elements recommended by manufacturer for raceway material
and size. Position raceway in center of sleeve. Assemble mechanical sleeve seals and install in
annular space between raceway and sleeve. Tighten bolts against pressure plates that cause
sealing elements to expand and make watertight seal.
3.6 PROTECTION
A. Provide final protection and maintain conditions that ensure coatings, finishes, and cabinets are
without damage or deterioration at time of Substantial Completion.
1. Repair damage to galvanized finishes with zinc-rich paint recommended by manufacturer.
2. Repair damage to PVC or paint finishes with matching touchup coating recommended by
manufacturer.
END OF SECTION 26 05 33
Old Central Parking Lot Identification for Electrical Systems
Denton, Texas 26 05 53-1 June 23, 2017
SECTION 26 05 53
IDENTIFICATION FOR ELECTRICAL SYSTEMS
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. Section Includes:
1. Identification for raceways.
2. Identification of power and control cables.
3. Identification for conductors.
4. Underground-line warning tape.
5. Warning labels and signs.
6. Instruction signs.
7. Equipment identification labels.
8. Miscellaneous identification products.
1.3 SUBMITTALS
A. Product Data: For each electrical identification product indicated.
B. Identification Schedule: An index of nomenclature of electrical equipment and system
components used in identification signs and labels.
1.4 QUALITY ASSURANCE
A. Comply with ANSI A13.1 and IEEE C2.
B. Comply with NFPA 70.
C. Comply with 29 CFR 1910.144 and 29 CFR 1910.145.
D. Comply with ANSI Z535.4 for safety signs and labels.
E. Adhesive-attached labeling materials, including label stocks, laminating adhesives, and inks used
by label printers, shall comply with UL 969.
1.5 COORDINATION
A. Coordinate identification names, abbreviations, colors, and other features with requirements in
other Sections requiring identification applications, Drawings, Shop Drawings, manufacturer's
wiring diagrams, and the Operation and Maintenance Manual; and with those required by
codes, standards, and 29 CFR 1910.145. Use consistent designations throughout Project.
B. Coordinate installation of identifying devices with completion of covering and painting of
surfaces where devices are to be applied.
C. Coordinate installation of identifying devices with location of access panels and doors.
Old Central Parking Lot Identification for Electrical Systems
Denton, Texas 26 05 53-2 June 23, 2017
D. Install identifying devices before installing acoustical ceilings and similar concealment.
PART 2 - PRODUCTS
2.1 POWER RACEWAY AND CABLE IDENTIFICATION MATERIALS
A. Comply with ANSI A13.1 for minimum size of letters for legend and for minimum length of color
field for each raceway size.
B. Colors for Raceways Carrying Circuits at 600 V or Less:
1. Color scheme to comply with ANSI A13.1 and IECC C2.
2. Legend: Indicate voltage and system or service type.
C. Self-Adhesive Vinyl Labels for Raceways Carrying Circuits at 600 V or Less: Preprinted, flexible
label laminated with a clear, weather- and chemical-resistant coating and matching
wraparound adhesive tape for securing ends of legend label.
D. Snap-Around Labels for Raceways Carrying Circuits at 600 V or Less: Slit, pretensioned, flexible,
preprinted, color-coded acrylic sleeve, with diameter sized to suit diameter of raceway or cable
it identifies and to stay in place by gripping action.
E. Snap-Around, Color-Coding Bands for Raceways Carrying Circuits at 600 V or Less: Slit,
pretensioned, flexible, solid-colored acrylic sleeve, 2 inches long, with diameter sized to suit
diameter of raceway or cable it identifies and to stay in place by gripping action.
F. Tape and Stencil for Raceways Carrying Circuits More Than 600 V: 4-inch- wide black stripes on
10-inch centers diagonally over orange background that extends full length of raceway or duct
and is 12 inches wide. Stop stripes at legends.
G. Metal Tags: Brass or aluminum, 2 by 2 by 0.05 inch, with stamped legend, punched for use with
self-locking cable tie fastener.
2.2 CONDUCTOR IDENTIFICATION MATERIALS
A. Color-Coding Conductor Tape: Colored, self-adhesive vinyl tape not less than 3 mils thick by 1 to
2 inches wide.
B. Self-Adhesive Vinyl Labels: Preprinted, flexible label laminated with a clear, weather- and
chemical-resistant coating and matching wraparound adhesive tape for securing ends of
legend label.
C. Snap-Around Labels: Slit, pretensioned, flexible, preprinted, color-coded acrylic sleeve, with
diameter sized to suit diameter of raceway or cable it identifies and to stay in place by gripping
action.
D. Snap-Around, Color-Coding Bands: Slit, pretensioned, flexible, solid-colored acrylic sleeve, 2
inches long, with diameter sized to suit diameter of raceway or cable it identifies and to stay in
place by gripping action.
E. Marker Tapes: Vinyl or vinyl-cloth, self-adhesive wraparound type, with circuit identification
legend machine printed by thermal transfer or equivalent process.
2.3 UNDERGROUND-LINE WARNING TAPE
A. Tape:
1. Recommended by manufacturer for the method of installation and suitable to identify and
locate underground electrical and communications utility lines.
Old Central Parking Lot Identification for Electrical Systems
Denton, Texas 26 05 53-3 June 23, 2017
2. Printing on tape shall be permanent and shall not be damaged by burial operations.
3. Tape material and ink shall be chemically inert, and not subject to degrading when
exposed to acids, alkalis, and other destructive substances commonly found in soils.
B. Color and Printing:
1. Comply with ANSI Z535.1 through ANSI Z535.5.
2. Inscriptions for Red-Colored Tapes: ELECTRIC LINE, HIGH VOLTAGE,.
3. Inscriptions for Orange-Colored Tapes: TELEPHONE CABLE, CATV CABLE,
COMMUNICATIONS CABLE, OPTICAL FIBER CABLE,.
C. Type:
1. Pigmented polyolefin, bright-colored, continuous-printed on one side with the inscription of
the utility, compounded for direct-burial service.
2. Thickness: 4 mils.
3. Weight: 18.5 lb/1000 sq. ft..
4. 3-Inch Tensile According to ASTM D 882: 30 lbf, and 2500 psi.
2.4 WARNING LABELS AND SIGNS
A. Comply with NFPA 70 and 29 CFR 1910.145.
B. Self-Adhesive Warning Labels: Factory-printed, multicolor, pressure-sensitive adhesive labels,
configured for display on front cover, door, or other access to equipment unless otherwise
indicated.
C. Warning label and sign shall include, but are not limited to, the following legends:
1. Multiple Power Source Warning: "DANGER - ELECTRICAL SHOCK HAZARD - EQUIPMENT HAS
MULTIPLE POWER SOURCES."
2. Workspace Clearance Warning: "WARNING - OSHA REGULATION - AREA IN FRONT OF
ELECTRICAL EQUIPMENT MUST BE KEPT CLEAR FOR 36 INCHES."
2.5 EQUIPMENT IDENTIFICATION LABELS
A. Self-Adhesive or punched for screw mounting, Engraved, Laminated Acrylic or Melamine Label:
Adhesive backed, with white letters on a dark-gray background. Minimum letter height shall be
3/8 inch.
1. Label all service disconnects.
2. Labels shall include voltage, circuit fed by, and name of device.
PART 3 - EXECUTION
3.1 INSTALLATION
A. Verify identity of each item before installing identification products.
B. Location: Install identification materials and devices at locations for most convenient viewing
without interference with operation and maintenance of equipment.
C. Apply identification devices to surfaces that require finish after completing finish work.
D. Self-Adhesive Identification Products: Clean surfaces before application, using materials and
methods recommended by manufacturer of identification device.
E. Attach signs and plastic labels that are not self-adhesive type with mechanical fasteners
appropriate to the location and substrate.
Old Central Parking Lot Identification for Electrical Systems
Denton, Texas 26 05 53-4 June 23, 2017
F. System Identification Color-Coding Bands for Raceways and Cables: Each color-coding band
shall completely encircle cable or conduit. Place adjacent bands of two-color markings in
contact, side by side. Locate bands at changes in direction, at penetrations of walls and floors,
at 50-foot maximum intervals in straight runs, and at 25-foot maximum intervals in congested
areas.
G. Underground-Line Warning Tape: During backfilling of trenches install continuous underground-
line warning tape directly above line at 6 to 8 inches below finished grade. Use multiple tapes
where width of multiple lines installed in a common trench or concrete envelope exceeds 16
inches overall.
3.2 IDENTIFICATION SCHEDULE
A. Accessible Raceways and Metal-Clad Cables, 600 V or Less, for Service, and Feeder: Identify
with self-adhesive vinyl label. Install labels at 30-foot maximum intervals.
B. Power-Circuit Conductor Identification, 600 V or Less: For conductors in vaults, pull and junction
boxes, manholes, and handholes, use color-coding conductor tape to identify the phase.
1. Color-Coding for Phase and Voltage Level Identification, 600 V or Less: Use colors listed
below for ungrounded service feeder and branch-circuit conductors.
a. Color shall be factory applied or field applied for sizes larger than No. 8 AWG, if
authorities having jurisdiction permit.
b. Colors for 208/120-V Circuits:
1) Phase A: Black.
2) Phase B: Red.
3) Phase C: Blue.
c. Colors for 480/277-V Circuits:
1) Phase A: Brown.
2) Phase B: Orange.
3) Phase C: Yellow.
d. Field-Applied, Color-Coding Conductor Tape: Apply in half-lapped turns for a
minimum distance of 6 inches from terminal points and in boxes where splices or
taps are made. Apply last two turns of tape with no tension to prevent possible
unwinding. Locate bands to avoid obscuring factory cable markings.
C. Power-Circuit Conductor Identification, More than 600 V: For conductors in vaults, pull and
junction boxes, manholes, and handholes, use nonmetallic plastic tag holder with adhesive-
backed phase tags, and a separate tag with the circuit designation.
D. Install instructional sign including the color-code for grounded and ungrounded conductors using
adhesive-film-type labels.
E. Conductors to Be Extended in the Future: Attach marker tape to conductors and list source.
F. Auxiliary Electrical Systems Conductor Identification: Identify field-installed alarm, control, and
signal connections.
1. Identify conductors, cables, and terminals in enclosures and at junctions, terminals, and
pull points. Identify by system and circuit designation.
2. Use system of marker tape designations that is uniform and consistent with system used by
manufacturer for factory-installed connections.
3. Coordinate identification with Project Drawings, manufacturer's wiring diagrams, and the
Operation and Maintenance Manual.
G. Locations of Underground Lines: Identify with underground-line warning tape for power, lighting,
communication, and control wiring and optical fiber cable.
1. Limit use of underground-line warning tape to direct-buried cables.
Old Central Parking Lot Identification for Electrical Systems
Denton, Texas 26 05 53-5 June 23, 2017
2. Install underground-line warning tape for both direct-buried cables and cables in
raceway.
H. Warning Labels for Indoor Cabinets, Boxes, and Enclosures for Power and Lighting: Self-adhesive
warning labels.
1. Comply with 29 CFR 1910.145.
2. Identify system voltage with black letters on an orange background.
3. Apply to exterior of door, cover, or other access.
4. For equipment with multiple power or control sources, apply to door or cover of
equipment including, but not limited to, the following:
a. Power transfer switches.
b. Controls with external control power connections.
I. Operating Instruction Signs: Install instruction signs to facilitate proper operation and
maintenance of electrical systems and items to which they connect. Install instruction signs with
approved legend where instructions are needed for system or equipment operation.
J. Emergency Operating Instruction Signs: Install instruction signs with white legend on a red
background with minimum 3/8-inch- high letters for emergency instructions at equipment used
for power transfer.
K. Equipment Identification Labels: On each unit of equipment, install unique designation label that
is consistent with wiring diagrams, schedules, and the Operation and Maintenance Manual.
Apply labels to disconnect switches and protection equipment, central or master units, control
panels, control stations, terminal cabinets, and racks of each system. Systems include power,
lighting, control, communication, signal, monitoring, and alarm systems unless equipment is
provided with its own identification.
1. Labeling Instructions:
a. Indoor Equipment: Self-adhesive or drilled for screw mounting, engraved, laminated
acrylic or melamine label. Unless otherwise indicated, provide a single line of text
with 1/2-inch- high letters on 1-1/2-inch- high label; where two lines of text are
required, use labels 2 inches high.
b. Outdoor Equipment: Engraved, laminated acrylic or melamine label.
c. Elevated Components: Increase sizes of labels and letters to those appropriate for
viewing from the floor.
d. Unless provided with self-adhesive means of attachment, fasten labels with
appropriate mechanical fasteners that do not change the NEMA or NRTL rating of
the enclosure.
2. Equipment to Be Labeled:
a. Panelboards: Typewritten directory of circuits in the location provided by
panelboard manufacturer. Panelboard identification shall be self-adhesive,
engraved, laminated acrylic or melamine label.
b. Enclosures and electrical cabinets.
c. Access doors and panels for concealed electrical items.
d. Transformers: Label that includes tag designation shown on Drawings for the
transformer, feeder, and panelboards or equipment supplied by the secondary.
e. Enclosed switches.
f. Enclosed circuit breakers.
g. Enclosed controllers.
h. Contactors.
3.3 DOCUMENTATION
A. Provide a typewritten chart, framed under glass, to correlate identification, abbreviations,
equipment numbers, color schemes, and similar information.
Old Central Parking Lot Identification for Electrical Systems
Denton, Texas 26 05 53-6 June 23, 2017
B. Provide an overall 1-line power distribution drawing, multi-colored, of the entire electrical
distribution system, framed under glass and mounted in each building’s main electrical room
where directed. Contact architect for color scheme.
END OF SECTION 26 05 53
Old Central Parking Lot Overcurrent Protective Device Coordination Study
Denton, Texas 26 05 73-1 June 23, 2017
SECTION 26 05 73
OVERCURRENT PROTECTIVE DEVICE COORDINATION STUDY
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. This Section includes computer-based, fault-current and overcurrent protective device
coordination studies. Protective devices shall be set based on results of the protective device
coordination study.
1.3 SUBMITTALS
A. Product Data: For computer software program to be used for studies.
B. Other Action Submittals: Submittals shall be in digital form.
1. Coordination-study input data, including completed computer program input data sheets.
2. Study and Equipment Evaluation Reports.
3. Coordination-Study Report, stamped and signed by the professional engineer performing
the study.
1.4 QUALITY ASSURANCE
A. Studies shall use computer programs that are distributed nationally and are in wide use. Software
algorithms shall comply with requirements of standards and guides specified in this Section.
Manual calculations are not acceptable.
B. Coordination-Study Specialist Qualifications: An entity experienced in the application of
computer software used for studies, having performed successful studies of similar magnitude on
electrical distribution systems using similar devices.
1. Professional engineer, licensed in the state where Project is located, shall be responsible for
the study. All elements of the study shall be performed under the direct supervision and
control of engineer.
C. Comply with IEEE 242 for short-circuit currents and coordination time intervals.
D. Comply with IEEE 399 for general study procedures.
PART 2 - PRODUCTS
2.1 COMPUTER SOFTWARE PROGRAM REQUIREMENTS
A. Comply with IEEE 399.
B. Analytical features of fault-current-study computer software program shall include "mandatory,"
"very desirable," and "desirable" features as listed in IEEE 399.
C. Computer software program shall be capable of plotting and diagramming time-current-
characteristic curves as part of its output. Computer software program shall report device
Old Central Parking Lot Overcurrent Protective Device Coordination Study
Denton, Texas 26 05 73-2 June 23, 2017
settings and ratings of all overcurrent protective devices and shall demonstrate selective
coordination by computer-generated, time-current coordination plots.
1. Optional Features:
a. Arcing faults.
b. Simultaneous faults.
c. Explicit negative sequence.
d. Mutual coupling in zero sequence.
PART 3 - EXECUTION
3.1 GENERAL REQUIREMENTS
A. The fault current and overcurrent protection device coordination studies shall be performed and
submitted together with shop drawings and other equipment submittals for electrical distribution
equipment provided as part of this contract.
B. Shop drawings and submittals for electrical distribution equipment will not be reviewed unless the
fault current and overcurrent protection device coordination studies are also included.
3.2 POWER SYSTEM DATA
A. Gather and tabulate the following input data to support coordination study:
1. Product Data for overcurrent protective devices specified in other Division 26 Sections and
involved in overcurrent protective device coordination studies. Use equipment
designation tags that are consistent with electrical distribution system diagrams,
overcurrent protective device submittals, input and output data, and recommended
device settings.
2. Impedance of utility service entrance.
3. Electrical Distribution System Diagram: In hard-copy and electronic-copy formats, showing
the following:
a. Circuit-breaker and fuse-current ratings and types.
b. Relays and associated power and current transformer ratings and ratios.
c. Transformer kilovolt amperes, primary and secondary voltages, connection type,
impedance, and X/R ratios.
d. Generator kilovolt amperes, size, voltage, and source impedance.
e. Cables: Indicate conduit material, sizes of conductors, conductor material,
insulation, and length.
f. Busway ampacity and impedance.
g. Motor horsepower and code letter designation according to NEMA MG 1.
4. Data sheets to supplement electrical distribution system diagram, cross-referenced with
tag numbers on diagram, showing the following:
a. Special load considerations, including starting inrush currents and frequent starting
and stopping.
b. Transformer characteristics, including primary protective device, magnetic inrush
current, and overload capability.
c. Motor full-load current, locked rotor current, service factor, starting time, type of
start, and thermal-damage curve.
d. Generator thermal-damage curve.
e. Ratings, types, and settings of utility company's overcurrent protective devices.
f. Special overcurrent protective device settings or types stipulated by utility
company.
g. Time-current-characteristic curves of devices indicated to be coordinated.
h. Manufacturer, frame size, interrupting rating in amperes rms symmetrical, ampere or
current sensor rating, long-time adjustment range, short-time adjustment range, and
instantaneous adjustment range for circuit breakers.
i. Manufacturer and type, ampere-tap adjustment range, time-delay adjustment
range, instantaneous attachment adjustment range, and current transformer ratio
for overcurrent relays.
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Denton, Texas 26 05 73-3 June 23, 2017
j. Panelboards, switchboards, motor-control center ampacity, and interrupting rating
in amperes rms symmetrical.
3.3 FAULT-CURRENT STUDY
A. Calculate the maximum available short-circuit current in amperes rms symmetrical at circuit-
breaker positions of the electrical power distribution system. The calculation shall be for a current
immediately after initiation and for a three-phase bolted short circuit at each of the following:
1. Switchgear and switchboard bus.
2. Medium-voltage controller.
3. Motor-control center.
4. Distribution panelboard.
5. Branch circuit panelboard.
B. Study electrical distribution system from normal and alternate power sources throughout
electrical distribution system for Project. Include studies of system-switching configurations and
alternate operations that could result in maximum fault conditions.
C. Calculate momentary and interrupting duties on the basis of maximum available fault current.
D. Calculations to verify interrupting ratings of overcurrent protective devices shall comply with
IEEE 141, IEEE 241 and IEEE 242.
1. Transformers:
a. ANSI C57.12.10.
b. ANSI C57.12.22.
c. ANSI C57.12.40.
d. IEEE C57.12.00.
e. IEEE C57.96.
2. Medium-Voltage Circuit Breakers: IEEE C37.010.
3. Low-Voltage Circuit Breakers: IEEE 1015 and IEEE C37.20.1.
4. Low-Voltage Fuses: IEEE C37.46.
E. Study Report:
1. Show calculated X/R ratios and equipment interrupting rating (1/2-cycle) fault currents on
electrical distribution system diagram.
2. Show interrupting (5-cycle) and time-delayed currents (6 cycles and above) on medium-
voltage breakers as needed to set relays and assess the sensitivity of overcurrent relays.
F. Equipment Evaluation Report:
1. For 600-V overcurrent protective devices, ensure that interrupting ratings are equal to or
higher than calculated 1/2-cycle symmetrical fault current.
2. For devices and equipment rated for asymmetrical fault current, apply multiplication
factors listed in the standards to 1/2-cycle symmetrical fault current.
3. Verify adequacy of phase conductors at maximum three-phase bolted fault currents;
verify adequacy of equipment grounding conductors and grounding electrode
conductors at maximum ground-fault currents. Ensure that short-circuit withstand ratings
are equal to or higher than calculated 1/2-cycle symmetrical fault current.
4. Show AIC rating conclusions for all equipment and devices.
3.4 COORDINATION STUDY
A. Perform coordination study using approved computer software program. Prepare a written
report using results of fault-current study. Comply with IEEE 399.
1. Calculate the maximum and minimum 1/2-cycle short-circuit currents.
2. Calculate the maximum and minimum interrupting duty (5 cycles to 2 seconds) short-
circuit currents.
3. Calculate the maximum and minimum ground-fault currents.
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Denton, Texas 26 05 73-4 June 23, 2017
B. Comply with IEEE 141, IEEE 241, and IEEE 242 recommendations for fault currents and time
intervals.
C. Transformer Primary Overcurrent Protective Devices:
1. Device shall not operate in response to the following:
a. Inrush current when first energized.
b. Self-cooled, full-load current or forced-air-cooled, full-load current, whichever is
specified for that transformer.
c. Permissible transformer overloads according to IEEE C57.96 if required by unusual
loading or emergency conditions.
2. Device settings shall protect transformers according to IEEE C57.12.00, for fault currents.
D. Motors served by voltages more than 600 V shall be protected according to IEEE 620.
E. Conductor Protection: Protect cables against damage from fault currents according to ICEA P-
32-382, ICEA P-45-482, and conductor melting curves in IEEE 242. Demonstrate that equipment
withstands the maximum short-circuit current for a time equivalent to the tripping time of the
primary relay protection or total clearing time of the fuse. To determine temperatures that
damage insulation, use curves from cable manufacturers or from listed standards indicating
conductor size and short-circuit current.
F. Coordination-Study Report: Prepare a written report indicating the following results of
coordination study:
1. Tabular Format of Settings Selected for Overcurrent Protective Devices:
a. Device tag.
b. Relay-current transformer ratios; and tap, time-dial, and instantaneous-pickup
values.
c. Circuit-breaker sensor rating; and long-time, short-time, and instantaneous settings.
d. Fuse-current rating and type.
e. Ground-fault relay-pickup and time-delay settings.
2. Coordination Curves: Prepared to determine settings of overcurrent protective devices to
achieve selective coordination. Graphically illustrate that adequate time separation exists
between devices installed in series, including power utility company's upstream devices.
Prepare separate sets of curves for the switching schemes and for emergency periods
where the power source is local generation. Show the following information:
a. Device tag.
b. Voltage and current ratio for curves.
c. Three-phase and single-phase damage points for each transformer.
d. No damage, melting, and clearing curves for fuses.
e. Cable damage curves.
f. Transformer inrush points.
g. Maximum fault-current cutoff point.
G. Completed data sheets for setting of overcurrent protective devices.
END OF SECTION 26 05 73
Old Central Parking Lot Lighting Control Devices
Denton, Texas 26 09 23-1 June 23, 2017
SECTION 26 09 23
LIGHTING CONTROL DEVICES
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. This Section includes the following lighting control devices:
1. Time switches.
2. Outdoor photoelectric switches.
3. Indoor occupancy sensors.
4. Lighting contactors.
1.3 DEFINITIONS
A. LED: Light-emitting diode.
B. PIR: Passive infrared.
1.4 SUBMITTALS
1.5 QUALITY ASSURANCE
A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70,
Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for
intended use.
1.6 COORDINATION
A. Coordinate layout and installation of ceiling-mounted devices with other construction that
penetrates ceilings or is supported by them, including light fixtures, HVAC equipment, smoke
detectors, fire-suppression system, and partition assemblies.
PART 2 - PRODUCTS
2.1 TIME SWITCHES
A. Electronic Time Switches: Electronic, solid-state programmable units with alphanumeric display;
complying with UL 917.
1. Contact Configuration: DPST.
2. Contact Rating: 30-A inductive or resistive, 240-V ac, 20-A ballast load, 120/240-V ac.
3. Program: 2 on-off set points on a 24-hour schedule, allowing different set points for each
day of the week and an annual holiday schedule that overrides the weekly operation on
holidays.
4. Circuitry: Allow connection of a photoelectric relay as substitute for on-off function of a
program.
5. Astronomic Time: All channels.
6. Battery Backup: For schedules and time clock.
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Denton, Texas 26 09 23-2 June 23, 2017
2.2 OUTDOOR PHOTOELECTRIC SWITCHES
A. Description: Solid state, with DPST dry contacts rated for 1800 VA to operate connected load,
relay, or contactor coils; complying with UL 773.
1. Light-Level Monitoring Range: 1.5 to 10 fc, with an adjustment for turn-on and turn-off
levels within that range.
2. Time Delay: 30-second minimum, to prevent false operation.
3. Lightning Arrester: Air-gap type.
4. Mounting: Twist lock complying with IEEE C136.10, with base.
2.3 LIGHTING CONTACTORS
A. Basis-of-Design Product: Subject to compliance with requirements, provide the product
indicated on Drawings or a comparable product by one of the following:
1. Allen-Bradley/Rockwell Automation.
2. Eaton Electrical Inc.; Cutler-Hammer Products.
3. GE Industrial Systems; Total Lighting Control.
4. Square D; Schneider Electric.
5. Siemens.
B. Description: Electrically operated and mechanically held, combination type with nonfused
disconnect, complying with NEMA ICS 2 and UL 508.
1. Current Rating for Switching: Listing or rating consistent with type of load served, including
tungsten filament, inductive, and high-inrush ballast (ballast with 15 percent or less total
harmonic distortion of normal load current).
2. Fault Current Withstand Rating: Equal to or exceeding the available fault current at the
point of installation.
3. Enclosure: Comply with NEMA 250.
4. Provide with control and pilot devices as scheduled, but at a minimum provide auxiliary
contacts, HOA switch, and pilot lights. Control devices shall match the NEMA type
specified for the enclosure.
C. BAS Interface: Provide hardware interface to enable the BAS to monitor and control lighting
contactors.
1. Monitoring: On-off status.
2. Control: On-off operation.
2.4 CONDUCTORS AND CABLES
A. Power Wiring to Supply Side of Remote-Control Power Sources: Not smaller than No. 12 AWG.
Comply with requirements in Division 26 Section "Low-Voltage Electrical Power Conductors and
Cables."
B. Classes 2 and 3 Control Cable: Multiconductor cable with stranded-copper conductors properly
sized to meet NEC requirements. Comply with requirements in Division 26 Section "Low-Voltage
Electrical Power Conductors and Cables."
C. Class 1 Control Cable: Multiconductor cable with stranded-copper conductors properly sized to
meet NEC requirements. Comply with requirements in Division 26 Section "Low-Voltage Electrical
Power Conductors and Cables."
PART 3 - EXECUTION
3.1 SENSOR INSTALLATION
A. Install and aim sensors in locations to achieve not less than 90 percent coverage of areas
indicated. Do not exceed coverage limits specified in manufacturer's written instructions.
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Denton, Texas 26 09 23-3 June 23, 2017
3.2 CONTACTOR INSTALLATION
A. Mount electrically held lighting contactors with elastomeric isolator pads, to eliminate structure-
borne vibration, unless contactors are installed in an enclosure with factory-installed vibration
isolators.
3.3 WIRING INSTALLATION
A. Wiring Method: Comply with Division 26 Section "Low-Voltage Electrical Power Conductors and
Cables." Minimum conduit size shall be 1/2 inch.
B. Wiring within Enclosures: Comply with NECA 1. Separate power-limited and nonpower-limited
conductors according to conductor manufacturer's written instructions.
C. Size conductors according to lighting control device manufacturer's written instructions, unless
otherwise indicated.
D. Splices, Taps, and Terminations: Make connections only on numbered terminal strips in junction,
pull, and outlet boxes; terminal cabinets; and equipment enclosures.
3.4 IDENTIFICATION
A. Identify components and power and control wiring according to Division 26 Section
"Identification for Electrical Systems."
1. Identify controlled circuits in lighting contactors.
2. Identify circuits or luminaries controlled by photoelectric and occupancy sensors at each
sensor.
B. Label time switches and contactors with a unique designation.
3.5 FIELD QUALITY CONTROL
A. Perform the following field tests and inspections and prepare test reports:
1. After installing time switches and sensors, and after electrical circuitry has been energized,
adjust and test for compliance with requirements.
2. Operational Test: Verify operation of each lighting control device, and adjust time delays.
B. Lighting control devices that fail tests and inspections are defective work.
C. Compile and maintain all field quality control reports and make available to the AHJ, owner,
architect and engineer as needed.
3.6 DEMONSTRATION
A. Coordinate demonstration of products specified in this Section with demonstration requirements
for low-voltage, programmable lighting control system specified in Division 26 Section "Network
Lighting Controls."
B. Engage a factory-authorized service representative to train Owner's maintenance personnel to
adjust, operate, and maintain lighting control devices. Refer to Division 01 Section
"Demonstration and Training."
END OF SECTION 26 09 23
Old Central Parking Lot Panelboards
Denton, Texas 26 24 16-1 June 23, 2017
SECTION 26 24 16
PANELBOARDS
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. Section Includes:
1. Distribution panelboards.
2. Lighting and appliance branch-circuit panelboards.
1.3 SUBMITTALS
A. Product Data: For each type of panelboard, switching and overcurrent protective device,
transient voltage suppression device, accessory, and component indicated. Include dimensions
and manufacturers' technical data on features, performance, electrical characteristics, ratings,
and finishes.
B. Shop Drawings: For each panelboard and related equipment
1. Detail short-circuit current rating of panelboards and overcurrent protective devices.
2. Include time-current coordination curves for each type and rating of overcurrent
protective device included in panelboards. Include selectable ranges for each type of
overcurrent protective device.
1.4 QUALITY ASSURANCE
A. Testing Agency Qualifications: Member company of NETA or an NRTL.
B. Source Limitations: Obtain panelboards, overcurrent protective devices, components, and
accessories from single source from single manufacturer.
C. Product Selection for Restricted Space: Drawings indicate maximum dimensions for panelboards
including clearances between panelboards and adjacent surfaces and other items. Comply
with indicated maximum dimensions.
D. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a
qualified testing agency, and marked for intended location and application.
E. Comply with NEMA PB 1.
F. Comply with NFPA 70.
1.5 DELIVERY, STORAGE, AND HANDLING
A. Handle and prepare panelboards for installation according to NEMA PB 1.
1.6 PROJECT CONDITIONS
A. Environmental Limitations:
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Denton, Texas 26 24 16-2 June 23, 2017
1. Do not deliver or install panelboards until spaces are enclosed and weathertight, wet work
in spaces is complete and dry, work above panelboards is complete, and temporary
HVAC system is operating and maintaining ambient temperature and humidity conditions
at occupancy levels during the remainder of the construction period.
2. Rate equipment for continuous operation under the following conditions unless otherwise
indicated:
a. Ambient Temperature: Not less than 23 deg F or more than plus 104 deg F.
b. Altitude: Not exceeding 6600 feet.
B. Service Conditions: NEMA PB 1, usual service conditions, as follows:
1. Ambient temperatures within limits specified.
2. Altitude not exceeding 6600 feet.
C. Interruption of Existing Electric Service: Do not interrupt electric service to facilities occupied by
Owner or others unless permitted under the following conditions and then only after arranging to
provide temporary electric service according to requirements indicated:
1. Notify Architect no fewer than seven days in advance of proposed interruption of electric
service.
2. Do not proceed with interruption of electric service without Architect's written permission.
3. Comply with NFPA 70E.
1.7 COORDINATION
A. Coordinate layout and installation of panelboards and components with other construction that
penetrates walls or is supported by them, including electrical and other types of equipment,
raceways, piping, encumbrances to workspace clearance requirements, and adjacent surfaces.
Maintain required workspace clearances and required clearances for equipment access doors
and panels.
B. Coordinate sizes and locations of concrete bases with actual equipment provided. Cast anchor-
bolt inserts into bases. Concrete, reinforcement, and formwork requirements are specified in
Division 03.
1.8 EXTRA MATERIALS
A. Furnish extra materials that match products installed and that are packaged with protective
covering for storage and identified with labels describing contents.
1. Keys: Two spares for each type of panelboard cabinet lock.
PART 2 - PRODUCTS
2.1 GENERAL REQUIREMENTS FOR PANELBOARDS
A. Enclosures: Flush- and surface-mounted cabinets.
1. Rated for environmental conditions at installed location.
a. Outdoor Locations: NEMA 250, Type 3R.
b. Other Wet or Damp Indoor Locations: NEMA 250, Type 4.
2. Front: Secured to box with concealed trim clamps. For surface-mounted fronts, match
box dimensions; for flush-mounted fronts, overlap box.
3. Hinged Front Cover: Entire front trim hinged to box and with standard door within hinged
trim cover.
4. Skirt for Surface-Mounted Panelboards: Same gage and finish as panelboard front with
flanges for attachment to panelboard, wall, and ceiling or floor.
5. Gutter Extension and Barrier: Same gage and finish as panelboard enclosure; integral with
enclosure body. Arrange to isolate individual panel sections.
6. Finishes:
Old Central Parking Lot Panelboards
Denton, Texas 26 24 16-3 June 23, 2017
a. Panels and Trim: Steel, factory finished immediately after cleaning and pretreating
with manufacturer's standard two-coat, baked-on finish consisting of prime coat
and thermosetting topcoat.
b. Back Boxes: Galvanized steel.
7. Directory Card: Inside panelboard door, mounted in transparent card holder.
B. Phase, Neutral, and Ground Buses:
1. Material: Hard-drawn copper, 98 percent conductivity.
2. Equipment Ground Bus: Adequate for feeder and branch-circuit equipment grounding
conductors; bonded to box.
3. Isolated Ground Bus: Adequate for branch-circuit isolated ground conductors; insulated
from box.
4. Extra-Capacity Neutral Bus: Neutral bus rated 200 percent of phase bus and UL listed as
suitable for nonlinear loads.
C. Conductor Connectors: Suitable for use with conductor material and sizes.
1. Material: Hard-drawn copper, 98 percent conductivity.
2. Main and Neutral Lugs: Mechanical type.
3. Ground Lugs and Bus-Configured Terminators: Compression type.
4. Feed-Through Lugs: Mechanical type, suitable for use with conductor material. Locate at
opposite end of bus from incoming lugs or main device.
5. Subfeed (Double) Lugs: Mechanical type suitable for use with conductor material. Locate
at same end of bus as incoming lugs or main device.
6. Gutter-Tap Lugs: Mechanical type suitable for use with conductor material. Locate at
same end of bus as incoming lugs or main device.
7. Extra-Capacity Neutral Lugs: Rated 200 percent of phase lugs mounted on extra-capacity
neutral bus.
D. Service Equipment Label: NRTL labeled for use as service equipment for panelboards or load
centers with one or more main service disconnecting and overcurrent protective devices.
E. Future Devices: Mounting brackets, bus connections, filler plates, and necessary appurtenances
required for future installation of devices.
F. Panelboard Short-Circuit Current Rating: Fully rated to interrupt symmetrical short-circuit current
available at terminals.
2.2 DISTRIBUTION PANELBOARDS
A. Basis-of-Design Product: Subject to compliance with requirements, provide product indicated on
Drawings or comparable product by one of the following:
1. Eaton Electrical Inc.; Cutler-Hammer Business Unit.
2. General Electric Company; GE Consumer & Industrial - Electrical Distribution.
3. Siemens Energy & Automation, Inc.
4. Square D; a brand of Schneider Electric.
B. Panelboards: NEMA PB 1, power and feeder distribution type.
C. Doors: Secured with vault-type latch with tumbler lock; keyed alike.
1. For doors more than 36 inches high, provide two latches, keyed alike.
D. Mains: Circuit breaker Lugs only. As scheduled on the Drawings.
E. Branch Overcurrent Protective Devices for Circuit-Breaker Frame Sizes Larger Than 125 A: Bolt-on
circuit breakers; plug-in circuit breakers where individual positive-locking device requires
mechanical release for removal.
Old Central Parking Lot Panelboards
Denton, Texas 26 24 16-4 June 23, 2017
F. Branch Overcurrent Protective Devices: Fused switches.
G. Contactors in Main Bus: NEMA ICS 2, Class A, mechanically held, general-purpose controller, with
same short-circuit interrupting rating as panelboard.
1. Internal Control-Power Source: Control-power transformer, with fused primary and
secondary terminals, connected to main bus ahead of contactor connection.
2.3 LIGHTING AND APPLIANCE BRANCH-CIRCUIT PANELBOARDS
A. Basis-of-Design Product: Subject to compliance with requirements, provide product indicated on
Drawings or comparable product by one of the following:
1. Eaton Electrical Inc.; Cutler-Hammer Business Unit.
2. General Electric Company; GE Consumer & Industrial - Electrical Distribution.
3. Siemens Energy & Automation, Inc.
4. Square D; a brand of Schneider Electric.
B. Panelboards: NEMA PB 1, lighting and appliance branch-circuit type.
C. Mains: As scheduled on the Drawings.
D. Branch Overcurrent Protective Devices: Bolt-on circuit breakers, replaceable without disturbing
adjacent units.
E. Contactors in Main Bus: NEMA ICS 2, Class A, mechanically held, general-purpose controller, with
same short-circuit interrupting rating as panelboard.
1. Internal Control-Power Source: Control-power transformer, with fused primary and
secondary terminals, connected to main bus ahead of contactor connection.
F. Doors: Concealed hinges; secured with flush latch with tumbler lock; keyed alike.
2.4 DISCONNECTING AND OVERCURRENT PROTECTIVE DEVICES
A. Basis-of-Design Product: Subject to compliance with requirements, provide product indicated on
Drawings or comparable product by one of the following:
1. Eaton Electrical Inc.; Cutler-Hammer Business Unit.
2. General Electric Company; GE Consumer & Industrial - Electrical Distribution.
3. Siemens Energy & Automation, Inc.
4. Square D; a brand of Schneider Electric.
B. Molded-Case Circuit Breaker (MCCB): Comply with UL 489, with interrupting capacity to meet
available fault currents.
1. Thermal-Magnetic Circuit Breakers: Inverse time-current element for low-level overloads,
and instantaneous magnetic trip element for short circuits. Adjustable magnetic trip
setting for circuit-breaker frame sizes 250 A and larger.
2. Electronic trip circuit breakers with rms sensing; field-replaceable rating plug or field-
replicable electronic trip; and the following field-adjustable settings:
a. Instantaneous trip.
b. Long- and short-time pickup levels.
c. Long- and short-time time adjustments.
d. Ground-fault pickup level, time delay, and I2t response.
3. GFCI Circuit Breakers: Single- and two-pole configurations with Class A ground-fault
protection (6-mA trip).
4. Arc-Fault Circuit Interrupter (AFCI) Circuit Breakers: Comply with UL 1699; 120/240-V, single-
pole configuration.
5. Molded-Case Circuit-Breaker (MCCB) Features and Accessories:
a. Standard frame sizes, trip ratings, and number of poles.
Old Central Parking Lot Panelboards
Denton, Texas 26 24 16-5 June 23, 2017
b. Lugs: Mechanical style, suitable for number, size, trip ratings, and conductor
materials.
c. Application Listing: Appropriate for application; Type SWD for switching fluorescent
lighting loads; Type HID for feeding fluorescent and high-intensity discharge (HID)
lighting circuits.
d. Ground-Fault Protection: Integrally mounted relay and trip unit with adjustable
pickup and time-delay settings, push-to-test feature, and ground-fault indicator.
e. Communication Capability: Integral communication module with functions and
features compatible with power monitoring and control system specified in
Division 26 Section "Electrical Power Monitoring and Control."
f. Shunt Trip: 120-V trip coil energized from separate circuit, set to trip at percent of
rated voltage.
g. Undervoltage Trip: Set to operate at 35 to 75 percent of rated voltage without
intentional time delay.
h. Auxiliary Contacts: One SPDT switch with "a" and "b" contacts; "a" contacts mimic
circuit-breaker contacts and "b" contacts operate in reverse of circuit-breaker
contacts.
i. Alarm Switch: Single-pole, normally open contact that actuates only when circuit
breaker trips.
j. Key Interlock Kit: Externally mounted to prohibit circuit-breaker operation; key shall
be removable only when circuit breaker is in off position.
k. Zone-Selective Interlocking: Integral with electronic trip unit; for interlocking ground-
fault protection function with other upstream or downstream devices.
l. Multipole units enclosed in a single housing or factory assembled to operate as a
single unit.
m. Handle Padlocking Device: Fixed attachment, for locking circuit-breaker handle in
on or off position.
n. Handle Clamp: Loose attachment, for holding circuit-breaker handle in on position.
C. Fused Switch: NEMA KS 1, Type HD; clips to accommodate specified fuses; lockable handle.
1. Fuses, and Spare-Fuse Cabinet: Comply with requirements specified in Division 26 Section
"Fuses."
2. Fused Switch Features and Accessories: Standard ampere ratings and number of poles.
3. Auxiliary Contacts: Two normally open and normally closed contact(s) that operate with
switch handle operation.
PART 3 - EXECUTION
3.1 EXAMINATION
A. Receive, inspect, handle, and store panelboards according to NEMA PB 1.1.
B. Examine panelboards before installation. Reject panelboards that are damaged or rusted or
have been subjected to water saturation.
C. Examine elements and surfaces to receive panelboards for compliance with installation
tolerances and other conditions affecting performance of the Work.
D. Proceed with installation only after unsatisfactory conditions have been corrected.
3.2 INSTALLATION
A. Install panelboards and accessories according to NEMA PB 1.1.
B. Equipment Mounting: Install panelboards on concrete bases, 4-inch nominal thickness. Comply
with requirements for concrete base specified in Division 03 Section "Cast-in-Place Concrete."
Old Central Parking Lot Panelboards
Denton, Texas 26 24 16-6 June 23, 2017
1. Install dowel rods to connect concrete base to concrete floor. Unless otherwise indicated,
install dowel rods on 18-inch centers around full perimeter of base.
2. For panelboards, install epoxy-coated anchor bolts that extend through concrete base
and anchor into structural concrete floor.
3. Place and secure anchorage devices. Use setting drawings, templates, diagrams,
instructions, and directions furnished with items to be embedded.
4. Install anchor bolts to elevations required for proper attachment to panelboards.
5. Attach panelboard to the vertical finished or structural surface behind the panelboard.
C. Temporary Lifting Provisions: Remove temporary lifting eyes, channels, and brackets and
temporary blocking of moving parts from panelboards.
D. Mount panelboard cabinet plumb and rigid without distortion of box. Mount recessed
panelboards with fronts uniformly flush with wall finish and mating with back box.
E. Install overcurrent protective devices and controllers not already factory installed.
1. Set field-adjustable, circuit-breaker trip ranges.
F. Install filler plates in unused spaces.
G. Stub four 1-inch empty conduits from flush mounted panelboard into accessible ceiling space or
space designated to be ceiling space in the future. Stub four 1-inch empty conduits into raised
floor space or below slab not on grade.
H. After all equipment has been connected, balance load on each panel to maintain less than 15%
difference between phases.
I. Arrange conductors in gutters into groups and bundle and wrap with wire ties after completing
load balancing.
J. Comply with NECA 1.
3.3 IDENTIFICATION
A. Identify field-installed conductors, interconnecting wiring, and components; provide warning
signs complying with Division 26 Section "Identification for Electrical Systems."
B. Create a directory to indicate installed circuit loads after balancing panelboard loads;
incorporate Owner's final room designations. Obtain approval before installing. Use a computer
or typewriter to create directory; handwritten directories are not acceptable.
C. Panelboard Nameplates: Label each panelboard with a nameplate complying with
requirements for identification specified in Division 26 Section "Identification for Electrical Systems."
D. Device Nameplates: Label each branch circuit device in distribution panelboards with a
nameplate complying with requirements for identification specified in Division 26 Section
"Identification for Electrical Systems."
3.4 FIELD QUALITY CONTROL
A. Acceptance Testing Preparation:
1. Test insulation resistance for each panelboard bus, component, connecting supply,
feeder, and control circuit.
2. Test continuity of each circuit.
B. Tests and Inspections:
Old Central Parking Lot Panelboards
Denton, Texas 26 24 16-7 June 23, 2017
1. Perform each visual and mechanical inspection and electrical test stated in NETA
Acceptance Testing Specification. Certify compliance with test parameters.
2. Correct malfunctioning units on-site, where possible, and retest to demonstrate
compliance; otherwise, replace with new units and retest.
C. Panelboards will be considered defective if they do not pass tests and inspections.
D. Prepare test and inspection reports, including a certified report that identifies panelboards
included and that describes scanning results. Include notation of deficiencies detected,
remedial action taken, and observations after remedial action.
E. Compile and maintain all field quality control reports and make available to the AHJ, owner,
architect and engineer as needed.
3.5 ADJUSTING
A. Adjust moving parts and operable component to function smoothly, and lubricate as
recommended by manufacturer.
B. Set field-adjustable circuit-breaker trip ranges as specified in Division 26 Section "Overcurrent
Protective Device Coordination Study."
3.6 PROTECTION
A. Temporary Heating: Apply temporary heat to maintain temperature according to
manufacturer's written instructions.
END OF SECTION 26 24 16
Old Central Parking Lot Fuses
Denton, Texas 26 28 13-1 June 23, 2017
SECTION 26 28 13
FUSES
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. Section Includes:
1. Cartridge fuses rated 600-V ac and less for use in control circuits, enclosed switches,
panelboards, switchboards, enclosed controllers and motor-control centers.
2. Plug fuses rated 125-V ac and less for use in plug-fuse-type enclosed switches.
3. Spare-fuse cabinets.
1.3 SUBMITTALS
A. Product Data: For each type of product indicated. Include construction details, material,
dimensions, descriptions of individual components, and finishes for spare-fuse cabinets. Include
the following for each fuse type indicated:
1. Ambient Temperature Adjustment Information: If ratings of fuses have been adjusted to
accommodate ambient temperatures, provide list of fuses with adjusted ratings.
a. For each fuse having adjusted ratings, include location of fuse, original fuse rating,
local ambient temperature, and adjusted fuse rating.
b. Provide manufacturer's technical data on which ambient temperature adjustment
calculations are based.
2. Dimensions and manufacturer's technical data on features, performance, electrical
characteristics, and ratings.
3. Current-limitation curves for fuses with current-limiting characteristics.
4. Time-current coordination curves (average melt) and current-limitation curves
(instantaneous peak let-through current) for each type and rating of fuse.
5. Coordination charts and tables and related data.
6. Fuse sizes for elevator feeders and elevator disconnect switches.
1.4 QUALITY ASSURANCE
A. Source Limitations: Obtain fuses, for use within a specific product or circuit, from single source
from single manufacturer.
B. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a
qualified testing agency, and marked for intended location and application.
C. Comply with NEMA FU 1 for cartridge fuses.
D. Comply with NFPA 70.
E. Comply with UL 248-11 for plug fuses.
1.5 PROJECT CONDITIONS
A. Where ambient temperature to which fuses are directly exposed is less than 40 deg F or more
than 100 deg F, apply manufacturer's ambient temperature adjustment factors to fuse ratings.
Old Central Parking Lot Fuses
Denton, Texas 26 28 13-2 June 23, 2017
1.6 COORDINATION
A. Coordinate fuse ratings with utilization equipment nameplate limitations of maximum fuse size
and with system short-circuit current levels.
1.7 EXTRA MATERIALS
A. Furnish extra materials that match products installed and that are packaged with protective
covering for storage and identified with labels describing contents.
1. Fuses: Equal to 10 percent of quantity installed for each size and type, but no fewer than
three of each size and type.
PART 2 - PRODUCTS
2.1 MANUFACTURERS
A. Manufacturers: Subject to compliance with requirements, provide products by one of the
following:
1. Cooper Bussmann, Inc.
2. Edison Fuse, Inc.
3. Mersen.
4. Littelfuse, Inc.
2.2 CARTRIDGE FUSES
A. Characteristics: NEMA FU 1, nonrenewable cartridge fuses with voltage ratings consistent with
circuit voltages.
2.3 PLUG FUSES
A. Characteristics: UL 248-11, nonrenewable plug fuses; 125-V ac.
2.4 SPARE-FUSE CABINET
A. Characteristics: Wall-mounted steel unit with full-length, recessed piano-hinged door and key-
coded cam lock and pull.
1. Size: Adequate for storage of spare fuses specified with 15 percent spare capacity
minimum.
2. Finish: Gray, baked enamel.
3. Identification: "SPARE FUSES" in 1-1/2-inch- high letters on exterior of door.
4. Fuse Pullers: For each size of fuse, where applicable and available, from fuse
manufacturer.
PART 3 - EXECUTION
3.1 EXAMINATION
A. Examine fuses before installation. Reject fuses that are moisture damaged or physically
damaged.
B. Examine holders to receive fuses for compliance with installation tolerances and other conditions
affecting performance, such as rejection features.
C. Examine utilization equipment nameplates and installation instructions. Install fuses of sizes and
with characteristics appropriate for each piece of equipment.
Old Central Parking Lot Fuses
Denton, Texas 26 28 13-3 June 23, 2017
D. Evaluate ambient temperatures to determine if fuse rating adjustment factors must be applied to
fuse ratings.
E. Proceed with installation only after unsatisfactory conditions have been corrected.
3.2 FUSE APPLICATIONS
1. Refer to schedules on drawings for descriptions of fuses in each application.
3.3 INSTALLATION
A. Install fuses in fusible devices. Arrange fuses so rating information is readable without removing
fuse.
B. Install spare-fuse cabinet(s).
3.4 IDENTIFICATION
A. Install labels complying with requirements for identification specified in Division 26 Section
"Identification for Electrical Systems" and indicating fuse replacement information on inside door
of each fused switch and adjacent to each fuse block, socket, and holder.
END OF SECTION 26 28 13
Old Central Parking Lot Plants
Denton, Texas 26 28 16-1 June 23, 2017
SECTION 26 28 16
ENCLOSED SWITCHES AND CIRCUIT BREAKERS
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and other Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. Section Includes:
1. Fusible switches.
2. Nonfusible switches.
3. Molded-case circuit breakers (MCCBs).
4. Enclosures.
1.3 DEFINITIONS
A. NC: Normally closed.
B. NO: Normally open.
C. SPDT: Single pole, double throw.
1.4 SUBMITTALS
A. Product Data: For each type of enclosed switch, circuit breaker, accessory, and component
indicated. Include dimensioned elevations, sections, weights, and manufacturers' technical data
on features, performance, electrical characteristics, ratings, accessories, and finishes.
1. Enclosure types and details for types other than NEMA 250, Type 1.
2. Current and voltage ratings.
3. Short-circuit current ratings (interrupting and withstand, as appropriate).
4. Include evidence of NRTL listing for series rating of installed devices.
5. Detail features, characteristics, ratings, and factory settings of individual overcurrent
protective devices, accessories, and auxiliary components.
6. Include time-current coordination curves (average melt) for each type and rating of
overcurrent protective device; include selectable ranges for each type of overcurrent
protective device.
1.5 QUALITY ASSURANCE
A. Source Limitations: Obtain enclosed switches and circuit breakers, overcurrent protective
devices, components, and accessories, within same product category, from single source from
single manufacturer.
B. Product Selection for Restricted Space: Drawings indicate maximum dimensions for enclosed
switches and circuit breakers, including clearances between enclosures, and adjacent surfaces
and other items. Comply with indicated maximum dimensions.
C. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a
qualified testing agency, and marked for intended location and application.
D. Comply with NFPA 70.
Old Central Parking Lot Plants
Denton, Texas 26 28 16-2 June 23, 2017
1.6 PROJECT CONDITIONS
A. Environmental Limitations: Rate equipment for continuous operation under the following
conditions unless otherwise indicated:
1. Ambient Temperature: Not less than minus 22 deg F and not exceeding 104 deg F.
2. Altitude: Not exceeding 6600 feet.
1.7 COORDINATION
A. Coordinate layout and installation of switches, circuit breakers, and components with equipment
served and adjacent surfaces. Maintain required workspace clearances and required
clearances for equipment access doors and panels.
PART 2 - PRODUCTS
2.1 FUSIBLE AND NON-FUSIBLE SWITCHES
A. Basis-of-Design Product: Subject to compliance with requirements, provide product indicated on
Drawings or comparable product by one of the following:
1. Eaton Electrical Inc.; Cutler-Hammer Business Unit.
2. General Electric Company; GE Consumer & Industrial - Electrical Distribution.
3. Siemens Energy & Automation, Inc.
4. Square D; a brand of Schneider Electric.
B. Type HD, Heavy Duty, Single Throw, 240 or 600-V ac, 1200 A and Smaller: UL 98 and NEMA KS 1,
horsepower rated, with clips or bolt pads to accommodate specified fuses, lockable handle with
capability to accept three padlocks, and interlocked with cover in closed position.
C. Type HD, Heavy Duty, Double Throw, 240 or 600-V ac, 1200 A and Smaller: UL 98 and NEMA KS 1,
horsepower rated, with clips or bolt pads to accommodate specified fuses, lockable handle with
capability to accept three padlocks, and interlocked with cover in closed position.
D. Accessories:
1. Equipment Ground Kit: Internally mounted and labeled for copper and aluminum ground
conductors.
2. Neutral Kit: Internally mounted; insulated, capable of being grounded and bonded;
labeled for copper and aluminum neutral conductors.
3. If a local disconnecting means is installed on the secondary side of the VFD, then an
auxiliary contact inside the disconnecting means shall be wired back to the VFD safety
shutdown circuit that shall shut down the VFD. This control wiring shall be in a separate
conduit from the motor power feed.
2.2 MOLDED-CASE CIRCUIT BREAKERS
A. Basis-of-Design Product: Subject to compliance with requirements, provide product indicated on
Drawings or comparable product by one of the following:
1. Eaton Electrical Inc.; Cutler-Hammer Business Unit.
2. General Electric Company; GE Consumer & Industrial - Electrical Distribution.
3. Siemens Energy & Automation, Inc.
4. Square D; a brand of Schneider Electric.
B. General Requirements: Comply with UL 489, NEMA AB 1, and NEMA AB 3, with interrupting
capacity to comply with available fault currents.
C. Thermal-Magnetic Circuit Breakers: Inverse time-current element for low-level overloads and
instantaneous magnetic trip element for short circuits. Adjustable magnetic trip setting for circuit-
breaker frame sizes 250 A and larger.
Old Central Parking Lot Plants
Denton, Texas 26 28 16-3 June 23, 2017
D. Electronic Trip Circuit Breakers: Field-replaceable rating plug, rms sensing, with the following field-
adjustable settings:
1. Instantaneous trip.
2. Long- and short-time pickup levels.
3. Long- and short-time time adjustments.
4. Ground-fault pickup level, time delay, and I2t response.
E. Ground-Fault, Circuit-Interrupter (GFCI) Circuit Breakers: Single- and two-pole configurations with
Class A ground-fault protection (6-mA trip).
F. Features and Accessories:
1. Standard frame sizes, trip ratings, and number of poles.
2. Lugs: Compression type, suitable for number, size, trip ratings, and conductor material.
3. Application Listing: Appropriate for application; Type SWD for switching fluorescent
lighting loads; Type HID for feeding fluorescent and high-intensity discharge lighting
circuits.
4. Ground-Fault Protection: Comply with UL 1053; integrally mounted, self-powered type with
mechanical ground-fault indicator; relay with adjustable pickup and time-delay settings,
push-to-test feature, internal memory, and shunt trip unit; and three-phase, zero-sequence
current transformer/sensor.
5. Communication Capability: Integral communication module with functions and features
compatible with power monitoring and control system, specified in Division 26 Section
"Electrical Power Monitoring and Control."
6. Shunt Trip: Trip coil energized from separate circuit, with coil-clearing contact.
7. Undervoltage Trip: Set to operate at 35 to 75 percent of rated voltage without intentional
time delay.
8. Auxiliary Contacts: One SPDT switch with "a" and "b" contacts; "a" contacts mimic circuit-
breaker contacts, "b" contacts operate in reverse of circuit-breaker contacts.
9. Alarm Switch: One NO contact that operates only when circuit breaker has tripped.
10. Key Interlock Kit: Externally mounted to prohibit circuit-breaker operation; key shall be
removable only when circuit breaker is in off position.
11. Zone-Selective Interlocking: Integral with ground-fault trip unit; for interlocking ground-fault
protection function.
12. Electrical Operator: Provide remote control for on, off, and reset operations.
13. Accessory Control Power Voltage: ; 120-V ac.
2.3 ENCLOSURES
A. Enclosed Switches and Circuit Breakers: NEMA AB 1, NEMA KS 1, NEMA 250, and UL 50, to comply
with environmental conditions at installed location.
1. Indoor, Dry and Clean Locations: NEMA 250, Type 1.
2. Outdoor Locations: NEMA 250, Type 3R.
3. Wash-Down Areas: NEMA 250, Type 4X,.
4. Other Wet or Damp, Indoor Locations: NEMA 250, Type 4.
5. Indoor Locations Subject to Dust, Falling Dirt, and Dripping Noncorrosive Liquids:
NEMA 250, Type 12.
PART 3 - EXECUTION
3.1 EXAMINATION
A. Examine elements and surfaces to receive enclosed switches and circuit breakers for
compliance with installation tolerances and other conditions affecting performance of the Work.
B. Proceed with installation only after unsatisfactory conditions have been corrected.
Old Central Parking Lot Plants
Denton, Texas 26 28 16-4 June 23, 2017
3.2 INSTALLATION
A. Install individual wall-mounted switches and circuit breakers with tops at uniform height unless
otherwise indicated.
B. Comply with mounting and anchoring requirements specified in Division 26 Section "Vibration
Controls for Electrical Systems."
C. Temporary Lifting Provisions: Remove temporary lifting eyes, channels, and brackets and
temporary blocking of moving parts from enclosures and components.
D. Install fuses in fusible devices.
E. Comply with NECA 1.
3.3 IDENTIFICATION
A. Comply with requirements in Division 26 Section "Identification for Electrical Systems."
1. Identify field-installed conductors, interconnecting wiring, and components; provide
warning signs.
2. Label each enclosure with engraved metal or laminated-plastic nameplate.
3.4 FIELD QUALITY CONTROL
A. Acceptance Testing Preparation:
1. Test insulation resistance for each enclosed switch and circuit breaker, component,
connecting supply, feeder, and control circuit.
2. Test continuity of each circuit.
B. Tests and Inspections:
1. Perform each visual and mechanical inspection and electrical test stated in NETA
Acceptance Testing Specification. Certify compliance with test parameters.
2. Correct malfunctioning units on-site, where possible, and retest to demonstrate
compliance; otherwise, replace with new units and retest.
3. Test and adjust controls, remote monitoring, and safeties. Replace damaged and
malfunctioning controls and equipment.
C. Enclosed switches and circuit breakers will be considered defective if they do not pass tests and
inspections.
D. Prepare test and inspection reports, including a certified report that identifies enclosed switches
and circuit breakers and that describes scanning results. Include notation of deficiencies
detected, remedial action taken and observations after remedial action.
E. Compile and maintain all field quality control reports and make available to the AHJ, owner,
architect and engineer as needed.
3.5 ADJUSTING
A. Adjust moving parts and operable components to function smoothly, and lubricate as
recommended by manufacturer.
B. Set field-adjustable circuit-breaker trip ranges as specified in Division 26 Section "Overcurrent
Protective Device Coordination Study".
END OF SECTION 26 28 16
Old Central Parking Lot Exterior Lighting
Denton, Texas 26 56 00-1 June 23, 2017
SECTION 26 56 00
EXTERIOR LIGHTING
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. This Section includes the following:
1. Exterior luminaires with lamps and ballasts.
2. Poles and accessories.
1.3 DEFINITIONS
A. CRI: Color-rendering index.
B. HID: High-intensity discharge.
C. Luminaire: Complete lighting fixture, including ballast housing if provided.
D. Pole: Luminaire support structure, including tower used for large area illumination.
E. Standard: Same definition as "Pole" above.
1.4 STRUCTURAL ANALYSIS CRITERIA FOR POLE SELECTION
A. Dead Load: Weight of luminaire and its horizontal and vertical supports, lowering devices, and
supporting structure, applied as stated in AASHTO LTS-4.
B. Live Load: Single load of 500 lbf, distributed as stated in AASHTO LTS-4.
C. Ice Load: Load of 3 lbf/sq. ft., applied as stated in AASHTO LTS-4.
D. Wind Load: Pressure of wind on pole and luminaire, calculated and applied as stated in
AASHTO LTS-4, for this project.
1.5 SUBMITTALS
A. Product Data: For each luminaire, pole, and support component, arranged in order of lighting
unit designation. Include data on features, accessories, finishes, and the following:
1. Physical description of luminaire, including materials, dimensions, effective projected area,
and verification of indicated parameters.
2. Details of attaching luminaires and accessories.
3. Details of installation and construction.
4. Luminaire materials.
5. Photometric data based on laboratory tests of each luminaire type, complete with
indicated lamps, ballasts, and accessories.
a. For indicated luminaires, photometric data shall be certified by a qualified
independent testing agency. Photometric data for remaining luminaires shall be
certified by manufacturer.
Old Central Parking Lot Exterior Lighting
Denton, Texas 26 56 00-2 June 23, 2017
b. Photometric data shall be certified by manufacturer's laboratory with a current
accreditation under the National Voluntary Laboratory Accreditation Program for
Energy Efficient Lighting Products.
6. Ballasts, including energy-efficiency data.
7. Lamps, including life, output, and energy-efficiency data.
8. Materials, dimensions, and finishes of poles.
9. Means of attaching luminaires to supports, and indication that attachment is suitable for
components involved.
10. Anchor bolts for poles.
11. Manufactured pole foundations.
1.6 QUALITY ASSURANCE
A. Luminaire Photometric Data Testing Laboratory Qualifications: Provided by an independent
agency or accredited manufactures’ laboratories with the experience and capability to
conduct the testing indicated, that is an NRTL as defined by OSHA in 29 CFR 1910.7.
B. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70,
Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for
intended use.
C. Comply with IEEE C2, "National Electrical Safety Code."
D. Comply with NFPA 70.
1.7 DELIVERY, STORAGE, AND HANDLING
A. Package aluminum poles for shipping according to ASTM B 660.
B. Store poles on decay-resistant-treated skids at least 12 inches above grade and vegetation.
Support poles to prevent distortion and arrange to provide free air circulation.
C. Retain factory-applied pole wrappings on metal poles until right before pole installation. For
poles with nonmetallic finishes, handle with web fabric straps.
1.8 EXTRA MATERIALS
A. Furnish extra materials described below that match products installed and that are packaged
with protective covering for storage and identified with labels describing contents.
1. Lamps: 10 for every 100 of each type and rating installed. Furnish at least one of each
type.
PART 2 - PRODUCTS
2.1 MANUFACTURERS
A. Light Fixtures
1. Basis of Design Product: The design of each item of exterior luminaire and its support is
based on the product named in the “Light Fixtures Schedule” on the drawings. Subject to
compliance with requirements, provide either the named product or a comparable
product.
B. Ballasts: Provide products by one of the following manufacturers:
1. Advance.
2. Magnetek – Universal Manufacturing.
3. Osram/Sylvania.
Old Central Parking Lot Exterior Lighting
Denton, Texas 26 56 00-3 June 23, 2017
C. Lamps: Provide products by one of the following manufacturers:
1. General Electric.
2. Osram/Sylvania.
3. Philips.
2.2 LUMINAIRES, GENERAL REQUIREMENTS
A. Luminaires shall comply with UL 1598 and be listed and labeled for installation in wet locations by
an NRTL acceptable to authorities having jurisdiction.
B. Comply with IESNA RP-8 for parameters of lateral light distribution patterns indicated for
luminaires.
C. Metal Parts: Free of burrs and sharp corners and edges.
D. Sheet Metal Components: Corrosion-resistant aluminum, unless otherwise indicated. Form and
support to prevent warping and sagging.
E. Housings: Rigidly formed, weather- and light-tight enclosures that will not warp, sag, or deform in
use. Provide filter/breather for enclosed luminaires.
F. Doors, Frames, and Other Internal Access: Smooth operating, free of light leakage under
operating conditions, and designed to permit relamping without use of tools. Designed to
prevent doors, frames, lenses, diffusers, and other components from falling accidentally during
relamping and when secured in operating position. Doors shall be removable for cleaning or
replacing lenses. Designed to disconnect ballast when door opens.
G. Exposed Hardware Material: Stainless steel.
H. Plastic Parts: High resistance to yellowing and other changes due to aging, exposure to heat,
and UV radiation.
I. Light Shields: Metal baffles, factory installed and field adjustable, arranged to block light
distribution to indicated portion of normally illuminated area or field.
J. Reflecting surfaces shall have minimum reflectance as follows, unless otherwise indicated:
1. White Surfaces: 85 percent.
2. Specular Surfaces: 83 percent.
3. Diffusing Specular Surfaces: 75 percent.
K. Lenses and Refractors Gaskets: Use heat- and aging-resistant resilient gaskets to seal and cushion
lenses and refractors in luminaire doors.
L. Luminaire Finish: Manufacturer's standard paint applied to factory-assembled and -tested
luminaire before shipping. Where indicated, match finish process and color of pole or support
materials.
M. Factory-Applied Finish for Steel Luminaires: Comply with NAAMM's "Metal Finishes Manual for
Architectural and Metal Products" for recommendations for applying and designating finishes.
1. Surface Preparation: Clean surfaces to comply with SSPC-SP 1, "Solvent Cleaning," to
remove dirt, oil, grease, and other contaminants that could impair paint bond. Grind
welds and polish surfaces to a smooth, even finish. Remove mill scale and rust, if present,
from uncoated steel, complying with SSPC-SP 5/NACE No. 1, "White Metal Blast Cleaning,"
or SSPC-SP 8, "Pickling."
2. Exterior Surfaces: Manufacturer's standard finish consisting of one or more coats of primer
and two finish coats of high-gloss, high-build polyurethane enamel.
Old Central Parking Lot Exterior Lighting
Denton, Texas 26 56 00-4 June 23, 2017
a. Color: As selected from manufacturer's standard catalog of colors, unless otherwise
noted on the drawings.
N. Factory-Applied Finish for Aluminum Luminaires: Comply with NAAMM's "Metal Finishes Manual for
Architectural and Metal Products" for recommendations for applying and designating finishes.
1. Finish designations prefixed by AA comply with the system established by the Aluminum
Association for designating aluminum finishes.
2. Natural Satin Finish: Provide fine, directional, medium satin polish (AA-M32); buff complying
with AA-M20; and seal aluminum surfaces with clear, hard-coat wax.
3. Class I, Clear Anodic Finish: AA-M32C22A41 (Mechanical Finish: medium satin; Chemical
Finish: etched, medium matte; Anodic Coating: Architectural Class I, clear coating 0.018
mm or thicker) complying with AAMA 611.
4. Class I, Color Anodic Finish: AA-M32C22A42/A44 (Mechanical Finish: medium satin;
Chemical Finish: etched, medium matte; Anodic Coating: Architectural Class I, integrally
colored or electrolytically deposited color coating 0.018 mm or thicker) complying with
AAMA 611.
a. Color: As selected by Architect from manufacturer's full range.
2.3 BALLASTS FOR HID LAMPS
A. Comply with ANSI C82.4 and UL 1029 and capable of open-circuit operation without reduction of
average lamp life. Include the following features, unless otherwise indicated:
1. Ballast Circuit: Constant-wattage autotransformer or regulating high-power-factor type.
2. Minimum Starting Temperature: Minus 22 deg F.
3. Normal Ambient Operating Temperature: 104 deg F.
4. Ballast Fuses: One in each ungrounded power supply conductor. Voltage and current
ratings as recommended by ballast manufacturer.
B. Auxiliary, Instant-On, Quartz System: Factory-installed feature automatically switches quartz lamp
on when fixture is initially energized and when momentary power outages occur. System
automatically turns quartz lamp off when HID lamp reaches approximately 60 percent of light
output.
C. High-Pressure Sodium Ballasts: Electromagnetic type with solid-state igniter/starter and capable
of open-circuit operation without reduction of average lamp life. Igniter/starter shall have an
average life in pulsing mode of 10,000 hours at an igniter/starter-case temperature of 90 deg C.
1. Instant-Restrike Device: Integral with ballast, or solid-state potted module, factory installed
within fixture and compatible with lamps, ballasts, and mogul sockets up to 150 W.
a. Restrike Range: 105- to 130-V ac.
b. Maximum Voltage: 250-V peak or 150-V ac RMS.
2. Minimum Starting Temperature: Minus 40 deg F.
2.4 HID LAMPS
A. High-Pressure Sodium Lamps: ANSI C78.42, CRI 22 (minimum), color temperature 1900 K, and
average rated life of 24,000 hours, minimum.
1. Dual-Arc Tube Lamp: Arranged so only one of two arc tubes is lighted at one time and,
when power is restored after an outage, the cooler arc tube, with lower internal pressure,
lights instantly, providing an immediate 8 to 15 percent of normal light output.
B. Metal-Halide Lamps: ANSI C78.1372, with a minimum CRI 65, and color temperature 4000 K,
unless noted otherwise on the drawings.
C. Pulse-Start, Metal-Halide Lamps: Minimum CRI 65, and color temperature 4000 K, unless noted
otherwise on the drawings.
Old Central Parking Lot Exterior Lighting
Denton, Texas 26 56 00-5 June 23, 2017
D. Ceramic, Pulse-Start, Metal-Halide Lamps: Minimum CRI 80, and color temperature 4000 K, unless
noted otherwise on the drawings.
2.5 POLES AND SUPPORT COMPONENTS, GENERAL REQUIREMENTS
A. Structural Characteristics: Comply with AASHTO LTS-4.
1. Wind-Load Strength of Poles: Adequate at indicated heights above grade without failure,
permanent deflection, or whipping in steady winds of speed indicated in Part 1 "Structural
Analysis Criteria for Pole Selection" Article, with a gust factor of 1.3.
2. Strength Analysis: For each pole, multiply the actual equivalent projected area of
luminaires and brackets by a factor of 1.1 to obtain the equivalent projected area to be
used in pole selection strength analysis.
B. Luminaire Attachment Provisions: Comply with luminaire manufacturers' mounting requirements.
Use stainless-steel fasteners and mounting bolts, unless otherwise indicated.
C. Mountings, Fasteners, and Appurtenances: Corrosion-resistant items compatible with support
components.
1. Materials: Shall not cause galvanic action at contact points.
2. Anchor Bolts, Leveling Nuts, Bolt Caps, and Washers: Hot-dip galvanized after fabrication,
unless stainless-steel items are indicated.
3. Anchor-Bolt Template: Plywood or steel.
D. Concrete Pole Foundations: Cast in place, with anchor bolts to match pole-base flange.
Concrete, reinforcement, and formwork are specified in Division 03 Section "Cast-in-Place
Concrete."
2.6 STEEL POLES
A. Poles: Comply with ASTM A 500, Grade B, carbon steel with a minimum yield of 46,000 psig; 1-
piece construction up to 40 feet in height with access handhole in pole wall.
1. Shape: As scheduled on the drawings..
2. Mounting Provisions: Butt flange for bolted mounting on foundation or breakaway support.
B. Steel Arms: Material and finish same as pole.
C. Pole-Top Tenons: Fabricated to support luminaire or luminaires and brackets indicated, and
securely fastened to pole top.
D. Grounding and Bonding Lugs: Welded 1/2-inch threaded lug, complying with requirements in
Division 26 Section "Grounding and Bonding for Electrical Systems," listed for attaching grounding
and bonding conductors of type and size listed in that Section, and accessible through
handhole.
E. Factory-Painted Finish: Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal
Products" for recommendations for applying and designating finishes.
1. Surface Preparation: Clean surfaces to comply with SSPC-SP 1, "Solvent Cleaning," to
remove dirt, oil, grease, and other contaminants that could impair paint bond. Grind
welds and polish surfaces to a smooth, even finish. Remove mill scale and rust, if present,
from uncoated steel, complying with SSPC-SP 5/NACE No. 1, "White Metal Blast Cleaning,"
or SSPC-SP 8, "Pickling."
2. Exterior Surfaces: Manufacturer's standard finish consisting of one or more coats of primer
and two finish coats of high-gloss, high-build polyurethane enamel.
a. Color: As selected by Architect from manufacturer's full range.
Old Central Parking Lot Exterior Lighting
Denton, Texas 26 56 00-6 June 23, 2017
2.7 ALUMINUM POLES
A. Poles: Seamless, extruded structural tube complying with ASTM B 429, Alloy 6063-T6 with access
handhole in pole wall.
B. Poles: ASTM B 209, 5052-H34 marine sheet alloy with access handhole in pole wall.
1. Shape: As scheduled on the drawings.
2. Mounting Provisions: Butt flange for bolted mounting on foundation or breakaway support.
C. Pole-Top Tenons: Fabricated to support luminaire or luminaires and brackets indicated, and
securely fastened to pole top.
D. Grounding and Bonding Lugs: Welded 1/2-inch threaded lug, complying with requirements in
Division 26 Section "Grounding and Bonding for Electrical Systems," listed for attaching grounding
and bonding conductors of type and size listed in that Section, and accessible through
handhole.
E. Brackets for Luminaires: Detachable, with pole and adapter fittings of cast aluminum. Adapter
fitting welded to pole and bracket, then bolted together with stainless-steel bolts.
1. Tapered oval cross section, with straight tubular end section to accommodate luminaire.
2. Finish: Same as pole.
F. Prime-Coat Finish: Manufacturer's standard prime-coat finish ready for field painting.
G. Aluminum Finish: Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal
Products" for recommendations for applying and designating finishes.
1. Finish designations prefixed by AA comply with the system established by the Aluminum
Association for designating aluminum finishes.
2. Natural Satin Finish: Provide fine, directional, medium satin polish (AA-M32); buff complying
with AA-M20; and seal aluminum surfaces with clear, hard-coat wax.
3. Class I, Clear Anodic Finish: AA-M32C22A41 (Mechanical Finish: medium satin; Chemical
Finish: etched, medium matte; Anodic Coating: Architectural Class I, clear coating 0.018
mm or thicker) complying with AAMA 611.
4. Class I, Color Anodic Finish: AA-M32C22A42/A44 (Mechanical Finish: medium satin;
Chemical Finish: etched, medium matte; Anodic Coating: Architectural Class I, integrally
colored or electrolytically deposited color coating 0.018 mm or thicker) complying with
AAMA 611.
5. Refer to schedule on drawings for finish type. Color shall be as selected by Architect’s
from manufacturer’s full range.
2.8 DECORATIVE POLES
A. Refer to schedule on drawings for description and details of all decorative poles.
PART 3 - EXECUTION
3.1 LUMINAIRE INSTALLATION
A. Install lamps in each luminaire.
B. Fasten luminaire to indicated structural supports.
1. Use fastening methods and materials selected to resist seismic forces defined for the
application and approved by manufacturer.
C. Adjust luminaires that require field adjustment or aiming. Aiming must occur at night with
architect present.
Old Central Parking Lot Exterior Lighting
Denton, Texas 26 56 00-7 June 23, 2017
D. Clean fixtures prior to Substantial Completion.
3.2 POLE INSTALLATION
A. Align pole foundations and poles for optimum directional alignment of luminaires and their
mounting provisions on the pole.
B. Clearances: Maintain the following minimum horizontal distances of poles from surface and
underground features, unless otherwise indicated on Drawings:
1. Fire Hydrants and Storm Drainage Piping: 60 inches.
2. Water, Gas, Electric, Communication, and Sewer Lines: 10 feet.
3. Trees: 15 feet.
C. Concrete Pole Foundations: Set anchor bolts according to anchor-bolt templates furnished by
pole manufacturer. Concrete materials, installation, and finishing requirements are specified in
Division 03 Section "Cast-in-Place Concrete."
D. Install outdoor lighting units as indicated in accordance with manufacturer’s written instructions,
applicable requirements of NEC, NESC and NEMA standards, and with recognized industry
practices to ensure that lighting units fulfill requirements.
E. Use belt slings or rope (not chain or cable) to raise and set finished poles and standards so as to
protect pole and luminare finishes.
F. Set poles and standards plumb. Support adequately during anchoring to foundations.
G. Provide sufficient space encompassing hand access and cable entrance holes for installation of
underground cabling where indicated.
3.3 INSTALLATION OF INDIVIDUAL GROUND-MOUNTING LUMINAIRES
A. Install on concrete base with top 4 inches above finished grade or surface at luminaire location.
Cast conduit into base, and finish by troweling and rubbing smooth. Concrete materials,
installation, and finishing are specified in Division 03 Section "Cast-in-Place Concrete."
3.4 CORROSION PREVENTION
A. Aluminum: Do not use in contact with earth or concrete. When in direct contact with a dissimilar
metal, protect aluminum by insulating fittings or treatment.
B. Steel Conduits: Comply with Division 26 Section "Raceway and Boxes for Electrical Systems." In
concrete foundations, wrap conduit with 0.010-inch- thick, pipe-wrapping plastic tape applied
with a 50 percent overlap.
3.5 GROUNDING
A. Ground metal poles and support structures according to Division 26 Section "Grounding and
Bonding for Electrical Systems."
1. Install grounding electrode for each pole, unless otherwise indicated.
2. Install grounding conductor pigtail in the base for connecting luminaire to grounding
system.
B. Ground nonmetallic poles and support structures according to Division 26 Section "Grounding
and Bonding for Electrical Systems."
1. Install grounding electrode for each pole.
2. Install grounding conductor and conductor protector.
3. Ground metallic components of pole accessories and foundations.
Old Central Parking Lot Exterior Lighting
Denton, Texas 26 56 00-8 June 23, 2017
3.6 FIELD QUALITY CONTROL
A. Inspect each installed fixture for damage. Replace damaged fixtures and components.
B. Illumination Observations: Verify normal operation of lighting units after installing luminaires and
energizing circuits with normal power source.
C. Compile and maintain all field quality control reports and make available to the AHJ, owner,
architect and engineer as needed.
3.7 DEMONSTRATION
A. Train Owner's maintenance personnel to adjust, operate, and maintain luminaire lowering
devices. Refer to Division 01 Section "Demonstration and Training."
END OF SECTION 26 56 00
Denton Central Fire Parking Lot Earthwork
Denton, Texas 31 00 00-1 June 23, 2017
SECTION 31 00 00
EARTHWORK
PART 1 – GENERAL
1.01 RELATED DOCUMENTS
A. Geotechnical Report: Perform earthwork complying with the requirements of Geotechnical
Report for the site.
B. Codes and Standards: Perform earthwork complying with requirements of authorities with
jurisdiction.
C. Existing Utilities: Do not interrupt existing utilities serving facilities occupied by the Owner or
others except when permitted in writing by the Engineer and then only after acceptable
temporary utility services have been provided.
D. Limits of this section: This section shall include earthwork on site outside of building pad areas.
Refer to structural section for building pad requirements.
E. Reference Specification for earthwork and related products shall be the "Standard
Specifications for Public Works Improvements", latest edition as published by the North Central
Texas Council of Governments. (NCTCOG)
F. Per Landscape Architect, only backfill landscape area to a point 0.4 feet or 5 inches below the
proposed finish grade. Refer to Landscape Plans and Specifications for further instructions.
PART 2 - PRODUCTS
2.01 SOIL MATERIALS
A. Provide approved borrow soil materials from off site when sufficient approved soil materials are
not available from excavations.
B. Import any additional top soil that may be required to achieve the final grades shown in the
plans.
2.02 SATISFACTORY SOIL MATERIALS
A. ASTM D 2487 soil classification groups GW, GP, GM, SW, SP, and SM; free of rock or gravel larger
than 2 inches in any dimension, debris, waste, frozen materials, vegetation, or other deleterious
matter.
2.03 UNSATISFACTORY SOIL MATERIALS
A. ASTM D 2487 soil classification groups GC, SC, ML, MH, CL, CH, OL, OH, and PT.
PART 3 - EXECUTION
3.01 PREPARATION
A. Protect structures, utilities, sidewalks, pavements, and other facilities from damage caused by
settlement, lateral movement, undermining, washout, and other hazards created by earthwork
operations.
B. Provide erosion and sedimentation control measures.
C. Prevent surface water and subsurface or groundwater from entering excavations, from
ponding on prepared subgrades, and from flooding project site and surrounding area.
D. Protect subgrades and foundation soils from softening and damage by rain or water
accumulation and from freezing temperatures or frost.
3.02 EXPLOSIVES
A. Do not use explosives.
3.03 UNCLASSIFIED EXCAVATION
A. Excavation is unclassified and includes excavation to required subgrade elevations regardless
Denton Central Fire Parking Lot Earthwork
Denton, Texas 31 00 00-2 June 23, 2017
of character of materials and obstructions encountered.
3.04 COMPACTION
A. Place backfill and fill materials in layers not more than 8 inches in loose depth for material
compacted by heavy compaction equipment, and not more than 4 inches in loose depth for
material compacted by hand-operated tampers. Place evenly alongside structures and
utilities to required elevations.
B. Compact soil to not less than the following percentages of maximum dry density according to
ASTM D 698:
1. Under lawn or unpaved areas, compact the top 6 inches below subgrade and each layer
of backfill or fill material to 90 percent.
2. Under walkways and pavement, compact the top 6 inches below subgrade and each
layer of backfill or fill material to 95 percent.
END OF SECTION 31 00 00
Denton Central Fire Parking Lot Site Clearing
Denton, Texas 31 10 00-1 June 23, 2017
SECTION 31 10 00
SITE CLEARING
PART 1 – GENERAL
1.01 RELATED DOCUMENTS
A. Drawings, specifications and general provisions of Contract, including General and
Supplementary Conditions and Division 1 Specification sections, apply to work of this section. It
is the responsibility of the Contractor and all subcontractors to locate information pertaining to
required items of work specified or indicated elsewhere in the Contract Documents.
1.02 SUMMARY
A. Protection of existing trees indicated to remain.
B. Removal of trees and other vegetation.
C. Topsoil stripping.
D. Clearing and grubbing.
E. Removing above-grade improvements.
F. Removing below-grade improvements.
1.03 PROJECT CONDITIONS
A. Traffic: Conduct site-clearing operations to ensure minimum interference with roads, streets,
walks, and other adjacent occupied or used facilities. Do not close or obstruct streets, walks,
or other occupied or used facilities without permission from authorities having jurisdiction.
Provide barricading in accordance with local and state requirements.
B. Protection of Existing Improvements: Provide protections necessary to prevent damage to
existing improvements indicated to remain in place.
1. Protect improvements on adjoining properties and on Owner's property.
2. Restore damaged improvements to their original condition, as acceptable to property
owners.
C. Protection of Existing Trees and Vegetation: Protect existing trees and other vegetation
indicated to remain in place against unnecessary cutting, breaking or skinning of roots,
skinning or bruising of bark, smothering of trees by stockpiling construction materials or
excavated materials within drip line, excess foot or vehicular traffic, or parking of vehicles
within drip line. Provide temporary guards to protect trees and vegetation to be left standing.
1. Water trees and other vegetation to remain within limits of contract work as required to
maintain their health during course of construction operations.
2. Provide protection for roots over 1-1/2 inch in diameter that are cut during construction
operations. Coat cut faces with an emulsified asphalt or other acceptable coating
formulated to use on damaged plant tissues. Temporarily cover exposed roots with wet
burlap to prevent roots from drying out; cover with earth as soon as possible.
3. Repair or replace trees and vegetation indicated to remain that are damaged by
construction operations in a manner acceptable to Architect. Employ a licensed arborist
to repair damage to trees and shrubs.
D. Improvements on Adjoining Property: Authority for performing removal and alteration work on
property adjoining Owner's property will be obtained by Owner prior to award of contract.
1. Extent of work on adjacent property is indicated on Drawings.
E. Salvable Improvements: Carefully remove items indicated to be salvaged and store on
Owner's premises where indicated or directed.
Denton Central Fire Parking Lot Site Clearing
Denton, Texas 31 10 00-2 June 23, 2017
1.04 EXISTING SERVICES
A. Indicated locations are approximate; determine exact locations before commencing Work.
B. Arrange and pay for disconnecting, removing, capping, and plugging utility services. Notify
affected utility companies in advance and obtain approval before starting this Work.
C. Place markers to indicate location of disconnected services. Identify service lines and
capping locations on Project Record Documents.
PART 2 - PRODUCTS (Not Applicable)
PART 3 – EXECUTION
3.01 SITE CLEARING
A. Remove trees, shrubs, grass, and other vegetation, improvements, or obstructions, as required,
to permit installation of new construction. Remove similar items elsewhere on site or premises
as specifically indicated. Removal includes digging out and off-site disposal of stumps and
roots.
1. Cut minor roots and branches of trees indicated to remain in a clean and careful manner
where such roots and branches obstruct installation of new construction.
B. Topsoil is defined as friable clay loam surface soil found in a depth of not less than 4 inches.
Satisfactory topsoil is reasonably free of subsoil, clay lumps, stones, and other objects over 2
inches in diameter, and without weeds, roots, and other objectionable material.
1. Strip topsoil to whatever depths encountered in a manner to prevent intermingling with
underlying subsoil or other objectionable material. Remove heavy growths of grass from
areas before stripping.
a. Where existing trees are indicated to remain, leave existing topsoil in place within drip
lines to prevent damage to root system.
2. Stockpile topsoil in storage piles in areas indicated or directed. Construct storage piles to
provide free drainage of surface water. Cover storage piles, if required, to prevent wind
erosion.
3. Dispose of unsuitable or excess topsoil as specified for disposal of waste material.
C. Clearing and Grubbing: Clear site of trees, shrubs, and other vegetation, except for those
indicated to be left standing.
1. Completely remove stumps, roots, and other debris protruding through ground surface.
2. Use only hand methods for grubbing inside drip line of trees indicated to remain.
3. Fill depressions caused by clearing and grubbing operations with satisfactory soil material,
unless further excavation or earthwork is indicated.
a. Place fill material in horizontal layers not exceeding 6 inches loose depth, and
thoroughly compact each layer to a density equal to adjacent original ground.
D. Removal of Improvements: Remove existing above-grade and below-grade improvements as
indicated and as necessary to facilitate new construction.
1. Abandonment or removal of certain underground pipe or conduits may be indicated on
mechanical or electrical drawings and is included under work of related Division 15 and 16
Sections. Removing abandoned underground piping or conduits interfering with
construction is included under this Section.
3.02 DISPOSAL OF WASTE MATERIALS
A. Burning on Owner's Property: Burning is not permitted on Owner's property.
B. Removal to Owner's Spoil Area: Transport waste materials and unsuitable topsoil materials to
designated spoil areas on Owner's property and dispose of as directed.
C. Removal from Owner's Property: Remove waste materials and unsuitable or excess topsoil
from Owner's property.
END OF SECTION 31 10 00
Denton Central Fire Parking Lot Erosion and Sedimentation Controls
Denton, Texas 31 25 00-1 June 23, 2017
SECTION 31 25 00
EROSION AND SEDIMENTATION CONTROLS
PART 1 – GENERAL
1.01 This section will consist of the completion and implementation of a storm water pollution prevention
plan (SWPPP).
PART 2 – PRODUCTS
2.01 The contractor will be provided with a package outlining contractor requirements regarding the
SWPPP. In addition, reference is made to the SWPPP construction plan prepared for this project.
PART 3 – EXECUTION
3.01 The contractor will be responsible for execution and implementation of the SWPPP, including
construction of all required erosion control features, reporting to TCEQ and completion of inspection
forms.
END OF SECTION 31 25 00
Denton Central Fire Parking Lot Lime Treated Base Courses
Denton, Texas 31 32 13.19-1 June 23, 2017
SECTION 31 32 13.19
LIME TREATED BASE COURSES
PART 1 - GENERAL
1.1 DESCRIPTION
A. This item shall consist of treating subgrade, subbase, and base courses by the pulverization,
addition of lime, mixing and compacting the mixed material to the required density. This item
applies to natural ground, embankment, or pulverized recycled asphalt pavement base or
subbase courses placed under this contract, which shall be constructed as specified herein
and in conformity with the typical section, lines and grades as shown on the plans.
1.2 BASE SPECIFICATION
A. Reference Specification for lime treatment and related products shall be the "Standard
Specifications for Public Works Improvements", latest edition as published by the North Central
Texas Council of Governments. (NCTCOG).
PART 2 - PRODUCTS
2.1 MATERIALS
A. Lime shall meet NCTCOG Item 301.2. Lime slurry shall be Grade 2.
B. Percentages and thickness shall be as shown on the plans.
C. Lime shall be placed in accordance with NCTCOG Item 301.2
D. Compaction and moisture content shall be as shown on the plans.
END OF SECTION 31 32 13.19
Denton Central Fire Parking Lot Portland Cement Concrete Paving
Denton, Texas 32 13 13-1 June 23, 2017
SECTION 32 13 13
PORTLAND CEMENT CONCRETE PAVING
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Extent of portland cement concrete paving is shown on drawings, including curbs, gutters,
walks, and paving.
B. Prepared subbase is specified in "Earthwork" section.
C. Concrete and related materials are specified below.
D. Joint fillers and sealers are as specified on the Plans.
E. Traffic Control: Maintain access for vehicular and pedestrian traffic as required for other
construction activities. Provide barricading as required by Manual of Uniform Traffic Control
Devices, latest edition, as published by the Texas Department of Transportation.
F. Reference Specification for concrete and related products shall be the "Standard
Specifications for Public Works Improvements", latest edition as published by the North Central
Texas Council of Governments. (NCTCOG)
PART 2 - PRODUCTS
2.1 MATERIALS
A. Concrete Materials: Comply with requirements of NCTCOG Item 303.2 for concrete materials,
admixtures, bonding materials, curing materials, and others as required. All concrete, unless
noted, shall be Class "A".
B. Antispalling Compound: Boiled linseed oil and mineral spirits, complying with AASHTO M-233.
C. Curing and Sealing Compound: ASTM C 309, Type 2, Class B.
D. Concrete Mix, Design, and Testing: Comply with requirements of applicable NCTCOG sections
for concrete mix design, sampling and testing, and quality control and as herein specified.
E. Paint Striping: Paint for pavement striping shall conform to NCTCOG Item 804.2 color as shown
on plans.
F. Use of fly ash shall comply with requirements of NCTCOG Item 303.2.4, local requirements, and
shall be approved by Engineer.
PART 3 - EXECUTION
3.1 PREPARATION
A. Place concrete in accordance with NCTCOG Item 303.5.
B. Joints: Construct expansion, sawed dummy and construction joints true to line with face
perpendicular to surface of concrete. Construct transverse joints at right angles to centerline
unless otherwise indicated. Spacing shall be as shown on the plans.
C. Pavement strength and thickness testing shall be per NCTCOG Item 303.7.
D. Place suitable warning signs near work site to alert approaching traffic from all directions to
prevent damage to newly painted surfaces.
E. Stencil "FIRE LANE - NO PARKING" at size, color and spacing as shown on the plans.
F. Stencil "HANDICAPPED PARKING SPACE" in 4" high white block letters on blue colored
background 6" high and of appropriate length for lettering background and provide
wheelchair logo in parking stall.
1. Handicap parking space marking and signage shall comply with state and city
requirements.
END OF SECTION 32 13 13
Old Central Parking Lot Pedestrian Concrete and Surface Paving
Denton, Texas 32 13 14-1 June 23, 2017
SECTION 32 13 14
PEDESTRIAN CONCRETE & SURFACE PAVING
PART 1 - GENERAL
1.01 SUMMARY
A. This Section includes exterior cement concrete pavement for the following:
1. Sidewalks.
2. Concrete pads.
3. Footings.
4. Truncated dome pavers.
5. Decomposed Granite.
1.02 SUBMITTALS
A. Product Data: For each type of product indicated.
B. Design Mixtures: For each concrete pavement mixture.
1.03 QUALITY ASSURANCE
A. Manufacturer Qualifications: Manufacturer of ready -mixed concrete products who complies
with ASTM C 94/C 94M requirements for production facilities and equipment.
B. ACI Publications: Comply with ACI 301, "Specification for Structural Concrete," unless modified
by requirements in the Contract Documents.
PART 2 - PRODUCTS
2.01 STEEL REINFORCEMENT
A. Plain-Steel Welded Wire Reinforcement: ASTM A 185, fabricated from as-drawn steel wire into
flat sheets.
B. Deformed -Steel Welded Wire Reinforcement: ASTM A 497, flat sheet.
C. Reinforcing Bars: ASTM A 615/A 615M, Grade 60; deformed.
D. Plain Steel Wire: ASTM A 82, as drawn.
E. Deformed -Steel Wire: ASTM A 496.
F. Bar Supports: Bolsters, chairs, spacers, and other devices for spacing, supporting, and
fastening reinforcing bars, welded wire reinforcement, and dowels in place. Manufacture bar
supports according to CRSI's "Manual of Standard Practice."
2.02 CONCRETE MATERIALS
A. Cementitious Material: Use the following cementitious materials, of the same type, brand, and
source throughout the Project:
1. Portland Cement: ASTM C 150, Type I/II , gray. Supplement with the following:
a. Fly Ash: ASTM C 618, Class C.
B. Normal -Weight Aggregates: ASTM C 33, Class 4M coarse aggregate, uniformly graded.
Provide aggregates from a single source.
C. Water: ASTM C 94/C 94M.
D. Air-Entraining Admixture: ASTM C 260.
E. Chemical Admixtures: ASTM C 494/C 494M, of type suitable for application, certified by
manufacturer to be compatible with other admixtures and to contain not more than 0.1
percent water-soluble chloride ions by mass of cementitious material.
F. Asphalt Material
2.03 CURING MATERIALS
A. Absorptive Cover: AASHTO M 182, Class 2, burlap cloth.
B. Moisture -Retaining Cover: ASTM C 171, polyethylene film or white burlap-polyethylene sheet.
C. Water: Potable.
D. Evaporation Retarder: Waterborne, monomolecular film forming; manufactured for application
to fresh concrete.
Old Central Parking Lot Pedestrian Concrete and Surface Paving
Denton, Texas 32 13 14-1 June 23, 2017
E. Clear Waterborne Membrane-Forming Curing Compound: ASTM C 309, Type 1, Class B,
dissipating.
F. White Waterborne Membrane-Forming Curing Compound: ASTM C 309, Type 2, Class B.
2.05 RELATED MATERIALS
G. Expansion- and I solation-Joint-Filler Strips: ASTM D 1751, asphalt-saturated cellulosic fiber.
2.06 CONCRETE MIXTURES
A. For sidewalks, slabs, parking, and curbs:
1. Compressive Strength 28 Days, 4000 psi.
2. Maximum Water-Cementitious Materials Ratio at Point of Placement: 0.45.
3. Slump Limit: 5 inches plus or minus 1 inch.
4. Air Content: 5-1/2 percent plus or minus 1.5 percent.
B. For footings:
1. Compressive Strength 28 Days, 5000 psi.
2. Maximum Water-Cementitious Materials Ratio at Point of Placement: 0.45.
3. Slump Limit: 5 inches plus or minus 1 inch.
4. Air Content: 5-1/2 percent plus or minus 1.5 percent.
2.07 CONCRETE MIXING
A. Ready-Mixed Concrete: Measure, batch, and mix concrete materials and concrete
according to ASTM C 94/C 94M. Furnish batch certificates for each batch discharged and
used in the Work.
2.08 TRUNCATED DOME PAVERS: Charcoal, 4x8x2 ¼”, by Pavestone.
.
PART 3 - EXECUTION
3.01 EXAMINATION
A. Proof-roll prepared base surface below concrete pavements with heavy pneumatic-tired
equipment to identify soft pockets and areas of excess yielding.
3.02 EDGE FORMS AND SCREED CONSTRUCTION
A. Set, brace, and secure edge forms, bulkheads, and intermediate screed guides for pavement
to required lines, grades, and elevations. Install forms to allow continuous progress of work and
so forms can remain in place at least 24 hours after concrete placement.
B. Clean forms after each use and coat with form-release agent to ensure separation from
concrete without damage.
3.03 STEEL REINFORCEMENT
A. General: Comply with CRSI's "Manual of Standard Practice" for fabricating, placing, and
supporting reinforcement.
3.04 JOINTS
A. General: Form construction, isolation, and contraction joints and tool edgings true to line with
faces perpendicular to surface plane of concrete. Construct transverse joints at right angles to
centerline, unless otherwise indicated.
B. Construction Joints: Set construction joints at side and end terminations of pavement and at
locations where pavement operations are stopped for more than one-half hour unless
pavement terminates at isolation joints.
C. Isolation Joints: Form isolation joints of preformed joint-fill er strips abutting concrete curbs,
catch basins, manholes, inlets, structures, walks, other fixed objects, and where indicated.
D. Contraction Joints: Form weakened-plane contraction joints, sectioning concrete into areas
as indicated. Construct contraction joints per the drawing details.
Old Central Parking Lot Pedestrian Concrete and Surface Paving
Denton, Texas 32 13 14-1 June 23, 2017
E. Edging: Tool edges of pavement, gutters, curbs, and joints in concrete after initial floating with
an edging tool to a 1/4-inch radius. Repeat tooling of edges after applying surface finishes.
Eliminate tool marks on concrete surfaces.
3.05 CONCRETE PLACEMENT
A. Moisten base to provide a uniform dampened condition at time concrete is placed.
B. Comply with ACI 301 requirements for measuring, mixing, transporting, and placing concrete.
C. Deposit and spread concrete in a continuous operation between transverse joints. Do not
push or drag concrete into place or use vibrators to move concrete into place.
D. Screed pavement surfaces with a straightedge and strike off.
E. Commence initial floating using bull floats or darbies to impart an open textured and uniform
surface plane before excess moisture or bleed water appears on the surface. Do not further
disturb concrete surfaces before beginning finishing operations or spreading surface
treatments.
3.06 FLOAT FINISHING
A. General: Do not add water to concrete surfaces during finishing operations.
B. Float Finish: Begin the second floating operation when bleed-water sheen has disappeared
and concrete surface has stiffened sufficiently to permit operations. Float surface with power-
driven floats, or by hand floating if area is small or inaccessible to power units. Finish surfaces
to true planes. Cut down high spots and fill low spots. Refloat surface immediately to uniform
granular texture.
1. Medium-to-Fine-Textured Broom Finish: Draw a soft bristle broom across float-finished
concrete surface perpendicular to line of traffic to provide a uniform, fine-line texture.
3.07 CONCRETE PROTECTION AND CURING
A. General: Protect freshly placed concrete from premature drying and excessive cold or hot
temperatures.
B. Compl y with ACI 306.1 for cold-weather protection.
C. Evaporation Retarder: Apply evaporation retarder to concrete surfaces if hot, dry, or windy
conditions cause moisture loss approaching 0.2 lb/sq. ft. x h (1 kg/sq. m x h) before and during
finishing operations. Apply according to manufacturer's written instructions after placing,
screeding, and bull floating or darbying concrete, but before float finishing.
D. Begin curing after finishing concrete but not before free water has disappeared from concrete
surface.
E. Curing Methods: Cure concrete by moisture curing, moisture-retaining -cover curing , curing
compound or a combination of these methods.
3.08 PAVEMENT TOLERANCES
A. Comply with tolerances of ACI 117 and as follows:
1. Elevation: 1/4 inch.
2. Thickness: Plus 3/8 inch, minus 1/4 inch.
3. Surface: Gap below 10-foot- long, unleveled straightedge not to exceed 1/4 inch.
4. Joint Spacing: 3 inches.
5. Contraction Joint Depth: Plus 1/4 inch, no minus.
6. Joint Width: Plus 1/8 inch, no minus.
3.09 REPAIRS AND PROTECTION
A. Remove and replace concrete pavement that is broken, damaged, or defective or that does
not comply with requirements in this Section.
B. Protect concrete from damage. Exclude traffic from pavement for at least 14 days after
placement.
C. Maintain concrete paveme nt free of stains, discoloration, dirt, and other foreign material.
Sweep concrete pavement not more than two days before date scheduled for Substantial
Completion inspections.
END OF SECTION 32 13 13
Old Central Parking Lot Concrete Paving Joint Sealants
Denton, Texas 32 13 73-1 June 23, 2017
SECTION 32 13 73
CONCRETE PAVING JOINT SEALANTS
PART 1 - GENERAL
1.01 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
1.02 SUMMARY
A. This Section includes the following:
1. Expansion and contraction joints within cement concrete pavement.
B. Related Sections include the following:
1. Division 32 Section "Concrete Paving" for constructing joints in concrete pavement.
1.03 SUBMITTALS
A. Product Data: For each joint -sealant product indicated.
B. Product Certificates: For each type of joint sealant and accessory, signed by product
manufacturer.
C. Compatibility and Adhesion Test Reports: From sealant manufacturer, indicating the following:
1. Materials forming joint substrat es and joint-sealant backings have been tested for
compatibility and adhesion with joint sealants.
1.04 QUALITY ASSURANCE
A. Installer Qualifications: An employer of workers trained and approved by manufacturer.
B. Source Limitations: Obtain each type of joint sealant through one source from a single
manufacturer.
1.05 DELIVERY, STORAGE, AND HANDLING
A. Deliver materials to Project site in original unopened containers or bundles with labels
indicating manufacturer, product name and designation, color, expiration date, pot life,
curing time, and mixing instructions for multicomponent materials.
B. Store and handle materials to comply with manufacturer's written instructions to prevent their
deterioration or damage due to moisture, high or low temperatures, contaminants, or other
causes.
1.06 PROJECT CONDITIONS
A. Do not proceed with installation of joint sealants under the following conditions:
1. When ambient and substrate temperature conditions are outside limits permitted by joint-
sealant manufacturer.
2. When joint substrates are wet or covered with frost.
3. Where joint widths are less than those allowed by joint-sealant manufacturer for
applications indicated.
4. Where contaminants capable of interfering with adhesion have not yet been removed
from joint substrates.
PART 2 - PRODUCTS
2.01 MANUFACTURERS
A. Products: Subject to compliance with requirements, provide one of the products listed in other
Part 2 articles.
Old Central Parking Lot Concrete Paving Joint Sealants
Denton, Texas 32 13 73-2 June 23, 2017
2.02 MATERIALS, GENERAL
A. Compatibility: Provide joint sealants, backing materials, and other related materials that are
compatible with one another and with joint substrates under conditions of service and
application, as demonstrated by joint-sealant manufacturer based on testing and field
experience.
B. Colors of Exposed Joint Sealants: As selected by Architect from manufacturer's full range.
2.03 COLD-APPLIED JOINT SEALANTS
A. Type NS Silicone Sealant for Concrete: Single-component, low -modulus, neutral -curing,
nonsag silicone sealant complying with ASTM D 5893 for Type NS.
1. Available Products:
a. Crafco Inc.; RoadSaver Silicone.
b. Dow Corning Corporation; 888.
2.04 JOINT-SEALANT BACKER MATERIALS
A. General: Provide joint-sealant backer materials that are non-staining; are compatible with
joint substrates, sealants, primers, and other joint fillers; and are approved for applications
indicated by joint-sealant manufacturer based on field experience and laboratory testing.
B. Round Backer Rods for Cold-Applied Sealants: ASTM D 5249, Type 3, of diameter and density
required to control sealant depth and prevent bottom-side adhesion of sealant.
PART 3 - EXECUTION
3.01 EXAMINATION
A. Examine joints indicated to receive joint sealants, with Installer present, for compliance with
requirements for joint configuration, installation tolerances, and other conditions affecting joint-
sealant performance.
1. Proceed with installation only after unsatisfactory conditions have been corrected.
3.02 PREPARATION
A. Surface Cleaning of Joints: Clean out joints immediately before installing joint sealants to
comply with joint-sealant manufacturer's written instructions.
3.03 INSTALLATION OF JOINT SEALANTS
A. General: Comply with joint -sealant manufacturer's written installation instructions for products
and applications indicated, unless more stringent requirements apply.
B. Sealant Installation Standard: Comply with recommendations in ASTM C 1193 for use of joint
sealants as applicable to materials, applications, and conditions indicated.
C. Install backer materials of type indicated to support sealants during application and at position
required to produce cross-sectional shapes and depths of installed sealants relative to joint
widths that allow optimum sealant movement capability.
1. Do not leave gaps between ends of backer materials.
2. Do not stretch, twist, puncture, or tear backer materials.
3. Remove absorbent backer materials that have become wet before sealant application
and replace them with dry materials.
D. Install sealants using proven techniques that comply with the following and at the same time
backings are installed:
1. Place sealants so they directly contact and fully wet joint substrates.
2. Completely fill recesses provided for each joint configuration.
3. Produce uniform, cross-sectional shapes and depths relative to joint widths that allow
optimum sealant movement capability.
E. Tooling of Nonsag Sealants: Immediately after sealant application and before skinning or
curing begins, tool sealants according to requirements specified below to form smooth,
uniform beads of configuration indicated; to eliminate air pockets; and to ensure contact and
adhesion of sealant with sides of joint.
1. Remove excess sealants from surfaces adjacent to j oint.
Old Central Parking Lot Concrete Paving Joint Sealants
Denton, Texas 32 13 73-3 June 23, 2017
2. Use tooling agents that are approved in writing by joint-sealant manufacturer and that do
not discolor sealants or adjacent surfaces.
F. Provide joint configuration to comply with joint-sealant manufacturer's written instructions,
unless otherwise indicated.
G. Provide recessed joint configuration for silicone sealants of recess depth and at locations
indicated.
3.04 CLEANING
A. Clean off excess sealants or sealant smears adjacent to joints as the Work progresses by
methods and with cleaning materials approved by manufacturers of joint sealants and of
products in which joints occur.
3.05 PROTECTION
A. Protect joint sealants during and after curing period from contact with contaminating
substances and from damage resulting from construction operations or other causes so
sealants are without deterioration or damage at time of Substantial Completion. If, despite
such protection, damage or deterioration occurs, cut out and remove damaged or
deteriorated joint sealants immediately and replace with joint sealant so installations with
repaired areas are indistinguishable from the original work.
END OF SECTION 32 13 73
Old Central Parking Lot Unit Pavers
Denton, Texas 32 14 00-1 June 23, 2017
SECTION 32 1400
UNIT PAVERS
PART 1 – GENERAL
1.01 SUMMARY
A. Section Includes:
1. Concrete Paver Units
1.02 REFERENCES
A. American Society for Testing and Materials (ASTM):
1. C 33, Standard Specification for Concrete Aggregates.
2. C 136, Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates.
3. C 140, Standard Test Methods for Sampling and Testing Concrete Masonry Units and
Related Units.
5. C 936, Standard Specification for Solid Concrete Interlocking Paving Units.
6. C 979, Standard Specification for Pigments for Integrally Colored Concrete.
8. D 698, Standard Test Method for Laboratory Compaction Characteristics of Soil Using
Standard Effort (12,000 ft-lbf/ft3 (600 kN-m/m3)).
9. D 1557, Test Method for Laboratory Compaction Characteristics of Soil Using Modified
Effort (56,000 ft-lbf/ft3 (2,700 kN-m/m3)).
1.03 SUBMITTALS
A. In accordance with Conditions of the Contract and Division 1 Submittal Procedures Section.
B. Concrete pavers:
1. Two representative full-size samples of each paver type, thickness, color, finish that
indicates the range of color variation and texture expected in the finished installation.
Colors sel ected by Landscape Architect from manufacturer’s available colors.
2. Accepted samples become the standard of acceptance for the work.
3. Test results from an independent testing laboratory for compliance of concrete pavers with
ASTM C 936.
4. Manufacturer’s catalog product data, installation instructions, and material safety data
sheets for the safe handling of the specified materials and products.
1.04 QUALITY ASSURANCE
A. Paving Subcontractor Qualifications:
1. Utilize an installer having successfully completed concrete paver installation similar in
design, material, and extent indicated on this project.
1.05 DELIVERY, STORAGE & HANDLING
A. General: Comply with Division 1 Product Requirement Section.
B. Comply with manufacturer’s ordering instructions and lead-time requirements to avoid
construction delays.
C. Delivery: Deliver materials in manufacturer’s original, unopened, undamaged containers
packaging with identification labels intact.
1. Coordinate delivery and paving schedule to minimize interference with normal use of
buildings adjacent to paving.
2. Deliver concrete pavers to the site in steel banded, plastic banded or plastic wrapped
packaging capable of transfer by forklift or clamp lift.
3. Unload pavers at job site in such a manner that no damage occurs to the product.
D. Storage and Protection: Store materials protected such that they are kept free from mud, dirt,
and other foreign materials. Store concrete paver cleaners and sealers per manufacturer’s
instructions.
1.06 PROJECT/SITE CONDITIONS
Old Central Parking Lot Unit Pavers
Denton, Texas 32 14 00-2 June 23, 2017
A. Environmental Requirements:
1. Do not install pavers during heavy rain or snowfall.
1.07 MAINTENANCE
A. Extra Materials: Provide 10 square feet additional material for use by owner for maintenance
and repair.
B. Pavers shall be from the same production run as installed materials.
PART 2 – PRODUCTS
2.01 CONCRETE PAVERS
A. Manufacturer: Per Materials Schedule.
B. Concrete Pavers:
1. Paver Type: Per drawing legend.
a. Material Standard: Comply with material standards set forth in ASTM C 936.
b. Color and finish: See Materials Schedule.
c. Average Compressive Strength (C140): 8000 psi (55 MPa) with no individual unit under
7200 psi (50 MPa) per ASTM C 140.
d. Average Water Absorption (ASTM C 140): 5% with no unit greater than 7%.
e. Freeze/Thaw Resistance (ASTM C 1645): 28 freeze -thaw cycles with no greater loss than
225 g/m2 of paver surface area or no greater loss than 500 g/m2 of paver surface area
after 49 freeze-thaw cycles. Freeze-thaw testing requirements shall be waived for
applications not exposed to freezing conditions.
2.02 PRODUCT SUBSTITUTIONS
A. If approved by the Landscape Architect as equal.
PART 3 – EXECUTION
3.01 EXAMINATION
A. Acceptance of Site Verification of Conditions:
1. General Contractor shall inspect, accept and certify in writing to the paver installation
subcontractor that site conditions meet specifications for the following items prior to
installation of interlocking concrete pavers.
a. Verify that subgrade preparation, compacted density and elevations conform to
specified requirements.
b. Verify that geotextiles, if applicable, have been placed according to drawings and
specifications.
c. Verify that concrete base material conforms to specified requirements in relation to
elevation and level tolerances.
e. Verify location, type, and elevations of edge restraints, utility structures, and drainage
inlets.
3.02 PREPARATION
A. Verify concrete base is cured and dry, certified by General Contractor as meeting material,
installation and grade specifications.
3.03 INSTALLATION
A. Install pavers on pedestals per manufacturer’s recommendations.
B. Lay pavers in pattern(s) shown on drawings. Place units hand tight without using hammers.
C. Provide joints between pavers per the drawings. Mortar in place those pavers installed over a
concrete sub-base.
D. Joint (bond) lines shall not deviate more than ±1/2 in. over 50 ft. from string lines.
E. Fill gaps at the edges of the paved area with cut pavers or edge units.
F. Cut pavers to be placed along the edge with a double blade paver splitter or masonry saw.
Old Central Parking Lot Unit Pavers
Denton, Texas 32 14 00-3 June 23, 2017
3.05 FIELD QUALITY CONTROL
A. The final surface tolerance from grade elevations shall not deviate more than ±3/8 in. under a
10 ft. straightedge.
B. Check final surface elevations for conformance to drawings.
C. The surface elevation of pavers shall be 1/8 in. to 1/4 in. above adjacent drainage inlets,
concrete collars or channels.
D. Lippage: No greater than 1/8 in. difference in height between adjacent pavers.
3.06 PROTECTION
A. After work in this section is complete, the General Contractor shall be responsible for
protecting work from damage due to subsequent construction activity on the site.
END OF SECTION 32 14 00
Old Central Parking Lot Planting Irrigation
Denton, Texas 32 84 00-1 June 23, 2017
SECTION 32 84 00
PLANTING IRRIGATION
PART 1 - GENERAL
1.01 SUMMARY
A. This Section includes piping, valves, sprinklers, specialties, controls, and wiring for automatic
control irrigation system.
1.02 DEFINITIONS
A. Lateral Piping: Downstream from control valves to sprinklers, specialties, and drain valves.
Piping is under pressure during flow.
B. Irrigation Main Piping: Downstream from point of connection to water distribution piping to,
and including, control valves. Piping is under water-distribution-system pressure.
1.03 SUBMITTALS
A. Product Data: Include pressure ratings, rated capacities, and settings of selected models for
the following:
1. System valves.
2. Specialty valves.
3. Control-valve boxes.
4. Sprinklers.
5. Irrigation specialties.
6. Controllers.
B. Operation and maintenance data.
1.04 QUALITY ASSURANCE
A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70,
Article 100, by a testing agency acceptable to authorities having jurisdiction, and marked for
intended use.
PART 2 - PRODUCTS
2.01 MANUFACTURERS
A. As indicated on the drawings.
2.02 PIPES, TUBES, AND FITTINGS
A. PVC Pipe: ASTM D 1785, PVC 1120 compound, Class 200.
1. PVC Socket Fittings, Schedule 40: ASTM D 2466.
2.03 GENERAL-DUTY VALVES
A. PVC Ball Valves: MSS SP-122, nonunion type, with full-port ball, socket or threaded
detachable end connectors, and pressure rating not less than 150 psig.
2.04 SPECIALTY VALVES
A. Plastic Automatic Control Valves: Molded-plastic body, normally closed, diaphragm type
with manual flow adjustment, and operated by 24-V ac solenoid.
1. Manufacturer as indicated on the drawings.
B. Quick-Couplers: Factory-fabricated, bronze or brass, two-piece assembly. Include coupler
water-seal valve; removable upper body with spring-loaded or weighted, rubber-covered
cap; hose swivel with ASME B1.20.7, 3/4-11.5NH threads for garden hose on outlet; and
operating key.
1. Manufacturer as indicated on the drawings.
Old Central Parking Lot Planting Irrigation
Denton, Texas 32 84 00-2 June 23, 2017
C. Drainage Backfill: Cleaned gravel or crushed stone, graded from 3/4 inch minimum to 1 inch
maximum.
2.05 SPRINKLERS
A. Description: Plastic housing and corrosion-resistant interior parts designed for uniform
coverage over entire spray area indicated, at available water pressure.
1. Manufacturer as indicated on the drawings.
2.06 AUTOMATIC-CONTROL SYSTEM
A. Manufacturer as indicated on the drawings.
PART 3 - EXECUTION
3.01 EARTHWORK
A. Install piping and wi ring in sleeves under sidewalks and paving per the drawings.
B. Provide minimum cover over top of underground piping according to the following:
1. Irrigation Main Piping: Minimum depth of 18 inches.
2. Lateral Piping: 12 inches.
3. Sleeves: 18 inches.
3.02 PIPING APPLICATIONS
A. Underground Irrigation Main Piping: PVC pipe and socket fittings; and solvent-cemented
joints per the drawings.
B. Lateral Piping: Class 200 PVC pipe and socket fittings per the drawings and details.
C. Sleeves: Class 200 PVC pipe and socket fittings; and solvent-cemented joints.
3.03 VALVE APPLICATIONS
A. Control Valves: Per the drawings.
3.04 INSTALLATION
A. Install piping free of sags and bends.
B. Install groups of pipes parallel to each other, spaced to permit valve servicing.
C. Install fittings for changes in direction and branch connections.
D. Install unions adjacent to valves and to final connections to other components.
E. Lay piping on solid base, uniformly sloped without humps or depressions.
F. Control Valves: Install in control-valve box.
G. Flush circuit piping with full head of water and install sprinklers after hydrostatic test is
completed.
H. Locate sprinkler heads to maintain a minimum distance of 2 inches from paved surfaces.
I. Install freestanding controllers on precast concrete bases per the drawing.
J. Install control cable in same trench as irrigation piping and at least 2 inches below or beside
piping. Provide conductors of size not smaller than recommended by controller
manufacturer. Install cable in separate sleeve under paved areas if irrigation piping is
installed in sleeve.
3.05 FIELD QUALITY CONTROL
A. Perform the following field tests and inspections and prepare test reports:
1. Leak Test: After installation, charge system and test for leaks. Repair leaks and retest
until no leaks exist.
2. Operational Test: After electrical circuitry has been energized, operate controllers and
automatic control valves to confirm proper system operation.
3. Test and adjust controls and safeties. Replace damaged and malfunctioning controls
and equipment.
B. Remove and replace units and re -inspect as specified above.
3.06 ADJUSTING
A. Adjust settings of controllers.
Old Central Parking Lot Planting Irrigation
Denton, Texas 32 84 00-3 June 23, 2017
B. Adjust automatic control valves to provide flow rate of rated operating pressure required for
each sprinkler circuit.
C. Adjust sprinklers so they will be flush with, or not more than 1/2 inch above, finish grade.
END OF SECTION 32 84 00
Old Central Parking Lot Plants
Denton, Texas 32 93 00-1 June 23, 2017
SECTION 32 93 00
PLANTS
PART 1 - GENERAL
1.01 SUMMARY
A. Section Includes:
1. Trees.
2. Ornamental Grasses.
3. Wetland Plugs
1.02 DEFINITIONS
A. Backfill: The earth used to replace or the act of replacing earth in an excavation.
B. Finish Grade: Elevation of finished surface of planting soil.
C. Planting Soil: Native or imported topsoil, manufactured topsoil, or surface soil modified to
become topsoil; mixed with soil amendments.
D. Subgrade: Surface or elevation of subsoil remaining after completing excavation, or top
surface of a fill or backfill, before placing planting soil.
E. Subsoil: All soil beneath the topsoil layer of the soil profile, and typified by the lack of
organic matter and soil organisms.
1.03 SUBMITTALS
A. Product Data: For each type of product indicated.
B. Product certificates.
1.04 QUALITY ASSURANCE
A. Installer's Field Supervision: Require Installer to maintain an experienced full-time supervisor
on Project site when planting is in progress.
B. Provide quality, size, genus, species, and variety of exterior plants indicated, complying with
applicable requirements in ANSI Z60.1, "American Standard for Nursery Stock."
1.05 DELIVERY, STORAGE, AND HANDLING
A. Do not prune trees before delivery. Protect bark, branches, and root systems from sun
scald, drying, sweating, whipping, and other handling and tying damage. Do not bend or
bind-tie trees or shrubs in such a manner as to destroy their natural shape. Provide
protective covering of exterior plants during delivery. Do not drop exterior plants during
delivery and handling.
B. Handle planting stock by root ball.
C. Deliver exterior plants after preparations for planting have been completed and install
immediately. If planting is delayed more than six hours after delivery, set exterior plants and
trees in shade, protect from weather and mechanical damage, and keep roots moist.
1.06 WARRANTY
A. Special Warranty: Installer's standard form in which Installer agrees to repair or replace
plantings that fail in materials, workmanship, or growth within specified warranty period.
1. Failures include, but are not limited to, the following:
a. Death and unsatisfactory growth, except for defects resulting from lack of adequate
maintenance, neglect, abuse by Owner, or incidents that are beyond Contractor's
control.
b. Structural failures including plantings falling or blowing over.
c. Warranty Periods from Date of Substantial Completion:
d. Trees and Plants: One year.
Old Central Parking Lot Plants
Denton, Texas 32 93 00-2 June 23, 2017
1.07 MAINTENANCE SERVICE
A. Initial Maintenance Service: Provide full maintenance by skilled employees of landscape
Installer. Maintain as required in Part 3. Begin maintenance immediately after each area is
planted and continue until plantings are acceptably healthy and well established, but for
not less than maintenance period below.
1. Maintenance Period for Trees and Plants : Three months from date of planting
completion.
PART 2 - PRODUCTS
2.01 TREE AND PLANT MATERIAL
A. General: Furnish nursery-grown trees and shrubs complying with ANSI Z60.1, with healthy
root systems developed by transplanting or root pruning. Provide well-shaped, fully
branched, healthy, vigorous stock free of disease, insects, eggs, larvae, and defects such
as knots, sun scald, injuries, abrasions, and disfigurement.
B. Root-Ball Depth: Furnish trees and shrubs with root balls measured from top of root ball,
which shall begin at root flare according to ANSI Z60.1. Root flare shall be visible before
planting.
C. Provide container-grown trees.
D. Plant sizes indicated on Drawings are sizes after pruning.
2.02 TOPSOIL
A. Topsoil:
1. Topsoil Source: Reuse surface soil stockpiled on-site. Verify suitability of stockpiled
surface soil to produce topsoil. Clean surface soil of roots, plants, sod, stones, clay
lumps, and other extraneous materials harmful to plant growth.
2.03 ORGANIC SOIL AMENDMENTS
A. Compost: Well-composted, stable, and weed-free organic matter, pH range of 5.5 to 8;
moisture content 35 to 55 percent by weight; 100 percent passing through 1-inch sieve;
soluble salt content of 5 to 10 decisiemens/m.
2.04 FERTILIZER
A. Slow -Release Fertilizer: Granular or pelleted fertilizer consisting of 50 percent water-insoluble
nitrogen, phosphorus, and potassium in the following composition:
1. Composition: 20 percent nitrogen, 10 percent phosphorous, and 10 percent potassium,
by weight.
2.05 MULCHES
A. Organic Mulch: Ground or shredded bark.
2.06 PLANTING SOIL MIX
A. Planting Soil Mix: Mix topsoil with the following soil amendments in the following quantities:
1. Install 3” of loose compost, then till into 6” of topsoil for a total prepared soil depth of 9”.
PART 3 - EXECUTION
3.01 PLANTING BED ESTABLISHMENT
A. Per 2.6A. Remove stones larger than 1 inch in any dimension and sticks, roots, rubbish, and
other extraneous matter and legally dispose of them off Owner's property.
B. Finish Grading: Grade planting beds to a smooth, uniform surface plane with loose,
uniformly fine texture. Roll and rake, remove ridges, and fill depressions to meet finish
grades.
Old Central Parking Lot Plants
Denton, Texas 32 93 00-3 June 23, 2017
3.02 TREES AND PLANTS
A. Excavation of Pits and Trenches: Excavate circular pits with sides sloped inward. Trim base
leaving center area raised slightly to support root ball and assist in drainage. Do not further
disturb base. Scarify sides of plant pit smeared or smoothed during excavation.
1. Excavate at least 12 inches wider than root spread and deep enough to accommodate
vertical roots for bare-root stock.
B. Before planting, verify that root flare is visible at top of root ball according to ANSI Z60.1.
C. Stock with Root Balls: Set trees and plants plumb and in center of pit or trench with top of
root ball 1 inch above adjacent finish grades.
1. Container Grown: Carefully remove root ball from container without damaging root ball
or plant.
D. Organic Mulching: Apply 3-inch average thickness of organic mulch. Do not place mulch
within 3 inches of trunks or stems.
3.03 TREE PRUNING
A. Remove only dead, dying, or broken branches. Do not prune for shape.
3.04 PLANTING BED MULCHING
A. Mulch backfilled surfaces of planting beds and other areas indicated. Provide mulch ring
around trees in lawn areas.
3.05 PLANT MAINTENANCE
A. Tree and Plant Maintenance: Maintain plantings by pruning, cultivating, watering,
weeding, fertilizing, restoring planting saucers, and resetting to proper grades or vertical
position, as required to establish healthy, viable plantings. Spray or treat as required to
keep and plants free of insects and disease.
B. Ground Cover and Plant Maintenance: Maintain and establish plantings by watering,
weeding, fertilizing, mulching, and other operations as required to establish healthy, viable
plantings.
C. Protect exterior plants from damage due to landscape operations, operations by other
contractors and trades, and others. Maintain protection during installation and
maintenance periods. Treat, repair, or replace damaged plantings.
END OF SECTION 32 93 00
Denton Central Fire Parking Lot Storm Drainage Utilities
Denton, Texas 33 40 00-1 June 23, 2017
SECTION 33 40 00
STORM DRAINAGE UTILITIES
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Reference Specification for storm sewerage and related products shall be the "Standard
Specifications for Public Works Improvements", latest edition as published by the North Central
Texas Council of Governments. (NCTCOG)
B. Utility Compliance: Comply with local utility regulations and standards pertaining to storm
sewerage.
PART 2 - PRODUCTS
2.1 MATERIALS
A. Pipe material as indicated on plans and in conformance with NCTCOG Items 501.6 or 501.23.
B. Concrete: Portland cement mix, Class "A" (NCTCOG Item 303.2), except where noted.
1. Cement: ASTM C 150, Type II.
2. Fine Aggregate: ASTM C 33, sand.
3. Coarse Aggregate: ASTM C 33, crushed gravel.
4. Water: Potable.
C. Reinforcement: Steel conforming to the following:
1. Reinforcement Bars: ASTM A 615, Grade 60, deformed.
D. Plastic Underground Warning Tapes: Polyethylene plastic tape, 6 inches wide by 4 mils thick,
solid green in color with continuously-printed caption in black letters "CAUTION - SEWER LINE
BURIED BELOW."
E. Inlets, headwall and catch basins shall be in accordance with local requirements.
PART 3 - EXECUTION
3.1 PREPARATION
A. Complete work in conformance with local requirements and manufacturer’s
recommendations and NCTCOG Item 508.
B. Inlets, headwall and catch basins shall be installed in accordance with local requirements.
END OF SECTION 33 40 00
Denton Central Fire Parking Lot Foundation and Drainage
Denton, Texas 33 46 13.13 -1 June 23, 2017
SECTION 33 46 13.13
FOUNDATION AND DRAINAGE
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. This section includes Foundation French Drains.
B. Reference Specification for earthwork and related products shall be the "Standard
Specifications for Public Works Improvements", latest edition as published by the North Central
Texas Council of Governments. (NCTCOG)
PART 2 - PRODUCTS
2.1 MATERIALS
A. Materials for Foundation French Drains shall meet requirements shown on plans and in
conformance with NCTCOG and local requirements.
B. Soil material - Filtering Material: Evenly graded mixture of natural or crushed gravel or crushed
stone and natural sand with 100 percent passing a 1-1/2" sieve and 0-5 percent passing a No.
50 sieve.
PART 3 - EXECUTION
3.1 PREPARATION
A. Complete work in conformance with local requirements and manufacturer’s
recommendations.
B. Testing Drain Lines: Test or check lines before backfilling to assure free flow. Remove
obstructions, replace damaged components, and retest system until satisfactory.
END OF SECTION 33 46 13.13