UL 924 BULLETIN

Abstract

This Standard applies to emergency lighting and power equipment for use in unclassified locations and intended for connection to branch circuits of 600 volts or less. Such equipment is intended to automatically supply illumination or power or both to critical areas and equipment in the event of failure of the normal supply, in accordance with Article 700 or 701 of the National Electrical Code, NFPA 70, the Life Safety Code, NFPA 101, and the International Building Code, IBC. <br>Examples of equipment described in 1.1 include: <br>Exit Signs <br>Emergency Luminaires <br>Unit Equipment <br>Central Station Battery Banks <br>Inverters <br>Automatic Battery Charging and Control Equipment<br>Automatic Load Control Relays <br>Derangement Signal Equipment <br>This Standard also applies to auxiliary lighting and power equipment for use in unclassified locations. Auxiliary equipment has not been investigated to determine compliance with the performance requirements of Article 700 or 701 of the National Electrical Code, NFPA 70, the Life Safety Code, NFPA 101, or the International Building Code. Such equipment includes luminaires with an integral battery backup power supply, illuminated directional signs, battery assemblies, and related devices. <br>This Standard does not include requirements for equipment covered by other Standards, such as: <br>Luminaires, UL 1598 <br>Uninterruptible Power Supply Equipment, UL 1778 <br>Low Level Path Marking and Lighting Systems, UL 1994 <br>Transfer Switch Equipment, UL 1008 <br>Electric Signs, UL 48