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Commonly installed from transformer to transformer or as underground cables exiting substations


imperial metric
Select a set of products below for more information:
Diameter (mils) (mm)
Nominal Inside Diamater (mils) (mm) Nominal Outside Diameter (mils) (mm) Nom. Size (Conduit) Nominal Total Weight (lbs/1000') (kgs/km)
622287 1126 1676
632793 1165 1734
630133 792 1179
630617 2464 3667
633272 3110 4628
630128 1139 1695
633179 1071 1595
631084 1105 1645
631076 1389 2068
626344 1271 1892

Standards & References

  • ASTM D3350 Standard Specification for Polyethylene Plastics Pipe and Fittings Materials
  • ASTM D3485 Standard Specification for Coilable High Density Polyethylene (HDPE) Cable in Conduit (CIC)
  • ASTM F2160 Standard Specification for Solid Wall High Density Polyethylene (HDPE) Conduit Based on Controlled Outside Diameter (OD)
  • UL 1990 Standard for Nonmetallic Underground Conduit with Conductors
  • NEMA TC-7 Smooth-Wall Coilable Electrical Polyethylene Conduit


  • Manufactured by continuously extruding HDPE loosely around the cable assembly with no adhesion between the conduit and the cable, thus leaving the cables free in the conduit
  • Schedule 40
  • All cables are installed as single conductors or paralleled in HDPE conduit
  • Lubrication is applied to the cable, allowing for cables to be pulled out and replaced if necessary


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