This standard covers the following types of electrical high-density polyethylene (HDPE) conduit.

EPEC-A– HDPE conduit designed for applications below ground, either concrete encased applications or direct burial. This type represents the nominal dimensions for HDPE conduit as specified by ASTM D 3035, SDR 17 and UL 651B.

EPEC-B– HDPE conduit designed for applications below ground, either concrete encased applications or direct burial. This type represents the nominal dimensions for HDPE conduit as specified by ASTM F 2160, SDR 13.5. The two and one-half inch trade size is taken from UL 651B.

EPEC-40– HDPE conduit designed for application below ground, either concrete encased applications or direct burial. This type represents the nominal dimensions for HDPE conduit as specified by ASTM F 2160, Schedule 40.

EPEC-80– HDPE conduit designed for applications below ground, either concrete encased applications or direct burial. This type represents the nominal dimensions for HDPE conduit as specified by ASTM F 2160, Schedule 80.

NOTE–The values stated in U.S. customary units are to be regarded as the standard.

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