UL 1573 PDF

1 Scope

1.1 These requirements cover stage and studio luminaires rated 600 volts or less for use in theaters, studios, and similar locations in accordance with Articles 520 and 530 of the National Electrical Code, NFPA 70.

1.2 These requirements cover borderlights, spotlights, floodlights, footlights, professional photographic lights, portable strip lights, and the like, that use incandescent, fluorescent, high-intensity discharge, xenon, and other high-pressure electric discharge lamps, as well as connector strips, drop boxes, and the like, when rigged similarly to borderlights. These requirements do not cover stage and studio luminaires using carbon arc lamps.

1.2A These requirements cover equipment with environmental ratings for dry, damp, or wet locations and may bear an optional Ingress Protection (IP) rating.

1.2B Lighting equipment in 1 and 2 use incandescent, fluorescent, light emitting diode (LED), high intensity discharge, Xenon, or other high pressure electric discharge light sources. These requirements do not cover stage and studio lighting equipment using a carbon arc light source.

1.3 These requirements do not cover miscellaneous special purpose lights, amateur movie lights, or lighting intended for residential use.

Summary of Topics

This revision to UL 1573 dated July 20, 2023 includes the following changes in requirements:

– Revision to Existing Definitions And Addition Of New Definitions To Help Users Interpret And Apply Requirements As Intended; 1.2, 1.2A and 1.2B

– Revision to Add Stability Requirements For Freestanding Lighting Equipment; 3.7, 3.20A, 3.43A, Table 3.1, 3.43B, and 4.2.

– Revision to Expand And Clarify Environmental Ratings Requirements; Sections 12, 13, 29A – 29E

– Revision to Update Isolation Devices Requirements; 29.1, 29.2, 29.3 and Table 29.1.

– Revision to Add Requirements for LED Light Sources; Sections 29F, 16, 16A and Table 15.1.

– Revision to Add Requirements For Equipment Having Cooling Fans; 17.1.1, 17.2.1 – 17.2.3, 17.3.1, Section 17.4 and 45.1.

– Revision to Add New Requirements For Equipment Having Wired Control Circuits; Supplement SA

– Revision to Add New Standard References To Annex A

– Editorial corrections to references; 39.1, Table 30.1, 47.6 and 51.1.