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Emergency Lighting: Automatic Load Control Relay Requirements in 2011 NEC

NFPA 101, the Life Safety Code, and the International Building Code (IBC) require emergency lighting in all commercial and industrial buildings to facilitate emergency egress of people from the building and to reduce the possibility of panic in buildings during the exiting of large numbers of people during an emergency. Emergency lighting loads must be automatically energized or re-energized within 10 seconds of the electrical power outage, based on 700.12 of the NEC, and must stay energized for at least 90 minutes or for the anticipated time of the building evacuation.

3/’11 Electrical Contractor