UL 1653:2019

$98.80

Electrical Nonmetallic Tubing

Published By	Publication Date	Number of Pages
UL	2019-02-15	29

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Category: UL

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Description

1 Scope

1.1 This Standard applies to corrugated electrical nonmetallic tubing (ENT) and mechanically-attached fittings, for use in accordance with C22.1, Canadian Electrical Code, Part I (CE Code), NFPA 70, National Electrical Code (NEC) and NOM-001-SEDE, Standard for Electrical Installations (Mexico). These requirements also apply to mechanically-attached fittings integral with an outlet box.

1.2 Products covered by this Standard are intended for use:

a) at a maximum continuous operating temperature of 75°C (167°F);

b) at a maximum ambient temperature of 50°C (122°F);

c) in attics provided that the ENT is installed no higher than 900 mm (3 ft) above the bottom of the ceiling joist, and the ENT material is rated minimum 60°C (140°F); and

d) underground (direct burial), in Canada only.

1.3 This Standard does not apply to fittings that are intended to be joined by solvent cement. Solvent-attached fittings are covered by UL 651 or CSA C22.2 No. 211.2. Solvent-attached fittings integral with an outlet or flush device box are covered by UL 514C or CAN/CSA-C22.2 No. 85.

1.4 For products intended for use in Canada, general requirements are given in CSA-C22.2 No. 0.

Additional information