scope:

This Standrd applies to corrugated electrical nonmetallic tubing (ENT) and mechanically-attached fittings, for use in accordance with the Canadian Electrical Code, Part I (CE Code, Part I), and the ANSI/NFPA 70 National Electrical Code (NEC), in nonhazardous locations. These requirements also apply to mechanically-attached fittings integral with an outlet box.

Products covered by this Standard are intended for use at a maximum continuous operating temperature of 75°C (167°F), and a maximum ambient temperature of 50°C (122°F).

This Standard does not apply to fittings that are intended to be joined by solvent cement. Solvent-attached fittings are covered by the Standard for Fittings for Conduit and Outlet Boxes, UL 514B, and the CSA Standard for Rigid PVC Boxes and Fittings, CAN/CSA-C22.2 No.85. Solvent-attached fittings integral with an outlet or flush device box are covered by the Standard for Nonmetallic Outlet Boxes, Flush-Device Boxes, and Covers, UL 514C.