UL 1640

Please note: All interim revisions for this edition available at time of your purchase will be included.

Portable Power-Distribution Equipment

UL 1640

1 Scope

1.1 These requirements cover portable power-distribution equipment intended to distribute power in accordance with the National Electrical Code, NFPA 70 (NEC).

1.2 These requirements cover portable power-distribution equipment intended for use in the following locations:

• a) Carnivals, circuses, fairs, and similar locations in accordance with Article 525 of the NEC;
• b) Exhibition halls in accordance with Article 518 of the NEC;
• c) Motion picture and television studios and similar locations in accordance with Article 530 of the NEC;
• d) Theaters, audience areas of motion-picture and television studios, and similar locations in accordance with Article 520 of the NEC; and
• e) Temporary installations at construction sites in accordance with Article 590 of the NEC.

1.3 These requirements do not cover portable power-distribution equipment intended to be mounted above or adjacent to the lighting unit it supplies.

1.4 These requirements cover power-distribution equipment rated 600 volts or less and 1600 amperes maximum. They may be intended for either single- or multi-phase supply.