UL 1400-2:2022

$56.55

Outline of Investigation for Fault-Managed Power Systems

Published By	Publication Date	Number of Pages
UL	2022-01-06	26

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Category: UL

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Description

1 Scope

1.1 These requirements cover 60 – 250 °C (140 – 482 °F) single- and multiple-conductor, jacketed cables for use as fixed wiring within buildings, may be used outdoors and/or for direct burial in Class 4 circuits in fault-managed power systems as described in Article 726 and other applicable parts of the National Electrical Code (NEC). Cables covered by these requirements include CL4P (plenum cables), CL4R (riser cables) and CL4 (general purpose cables).

1.2 Cables for Class 4 circuits are rated for 450 Volts peak but are not so marked.

1.3 These requirements do not cover cables that contain conductors for electric-light, Class 1, Class 2 or Class 3 circuits. These requirements do not cover optical-fiber cables that do not contain any electrical conductors. These requirements do not cover communication cables (see the Standard for Communications Cables, UL 444) or cables for power-limited fire-alarm circuits (see the Standard for Cables for Power-Limited Fire-Alarm Circuits, UL 1424) or Power-Limited Cables (see the Standard for Power-limited Circuit Cables, UL 13).

1.4 These requirements do not cover the optical or other performance of any optical-fiber member or group of such members.

1.5 If a value for measurement is followed by a value in other units in parenthesis, the second value may be only approximate. The first stated value is the requirement.

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