7573 SOW--HDPE Conduit, Fittings, and Accessories Specs 2IFB # 7573- Roll Duct and PVC Fittings Scope of Work
Denton Municipal Electric (DME)
Specifications for HDPE Conduit and Fittings
Page 1 of 2 10/21/20
I. GENERAL
These specifications cover high density polyethylene (HDPE) conduit and associated fittings and
accessories for use by DME in underground electric distribution and communication systems.
Conduit, fittings, and accessories shall be suitable for direct‐buried, concrete‐encased, and exposed
applications.
II. CONSTRUCTION
Conduit and fittings furnished under these specifications shall be smooth walled HDPE SDR‐13.5,
manufactured in accordance with the latest revision of the following industry standards; ASTM
D2447, ASTM D3035, ASTM D3485, ASTM D2239, ASTM F2160‐16 and NEMA TC7
Conduit shall be rated for use with 90oC wiring and be sunlight resistant.
Conduit shall be furnished on light weight steel reels in the following minimum conduit lengths:
Conduit Size (in) Reel Length (ft)
2 2500
2‐1/2 1000
4 625
6 500
Conduit and fittings shall be homogenous plastic material free from visible cracks, holes, burrs, and
foreign inclusions. The conduit bore shall be smooth and free of defects which could damage
conductors during installation.
The nominal conduit dimensions shall be as shown below;
Conduit
Size (inches)
Minimum I.D.
(inches)
Nominal O.D.
(inches)
Minimum Wall
(inches)
Maximum Wall
(inches)
2 1.980 2.375 0.175 .200
2‐1/2 2.375 2.875 0.210 .240
4 3.750 4.500 0.330 .375
6 5.525 6.625 0.490 .550
IFB # 7573- Roll Duct and PVC Fittings Scope of Work
Denton Municipal Electric (DME)
Specifications for HDPE Conduit and Fittings
Page 2 of 2 10/21/20
Conduit and fittings shall be clearly marked with the manufacturer's name, type of conduit, and
size at intervals of two (2) feet or less. Any additional markings deemed necessary by the
manufacturer is permitted. The markings shall be legible and permanent. Where fitting size does
not permit marking, the packaging shall carry the designated information.
III. DEVIATIONS TO SPECIFICATIONS
Bidders quoting conduit, fittings, and accessories to this specification shall indicate any areas where
deviations are required by their design and shall provide sufficient information to permit full
evaluation of the proposed deviations. This data shall reference the appropriate section number
and be sent in letter form.
It is the responsibility of the supplier to assure compliance with all specifications and standards for
all conduit, fittings, and accessories delivered. This responsibility is not waived by acceptance of
delivery at the City's warehouse.