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Emergency Lighting Transfer Time - Generator #98320
05/28/06 07:36 AM
05/28/06 07:36 AM
Frank Cinker  Offline OP
Joined: Jul 2001
Posts: 311
I was under the impression that the transfer switch time must not exceed 10 seconds when a generator powers emergency lighting. NEC Article 700. I checked section 700.12.(B)and could not find it. Is it in another section or has it been rewritten?


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Re: Emergency Lighting Transfer Time - Generator #98321
05/28/06 08:17 AM
05/28/06 08:17 AM
iwire  Offline
Joined: Jan 2003
Posts: 4,391
North Attleboro, MA USA
700.12 General Requirements.
Current supply shall be such that, in the event of failure of the normal supply to, or within, the building or group of buildings concerned, emergency lighting, emergency power, or both shall be available within the time required for the application but not to exceed 10 seconds.....

Bob Badger
Construction & Maintenance Electrician


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