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Emergency Lighting

Emergency lighting is that required to provide illumination for safe egress from a theatre in the event of a power failure. It must be available 10 seconds after utility power fails and must last 90 minutes. For the full story, see attached article "Understanding Control of Emergency Lighting Circuits" by Steve Terry, Mich Hefter, and Ken Vannice. This article was published in the journal of the International Association of Electrical Inspectors (IAEI).

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