NEC 700.17 Emergency Lighting

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sam123

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Troy, MI
Is feeding an emergency lighting fixture, located at the exterior exit door, from life safety branch circuit meets the requirement of article 700.17 or two branch circuits need to be provided up to the fixture?
Thanks
 
sam123 said:
Is feeding an emergency lighting fixture, located at the exterior exit door, from life safety branch circuit meets the requirement of article 700.17 or two branch circuits need to be provided up to the fixture?
Thanks
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Two circuits are only needed if you cannot comply with 700.17(1). If you have a life safety branch in your building then you are certainly capable of complying.
 
publicgood said:
You may need at least (2) lamps for the fixture

I feel like I have seen this requirement before, but cannot find it now. Anyone help?

"Fluorescent exit signs are required to have two lamps by code, in case one fails."

http://www.csemag.com/single-articl...cc9a696823cfe4.html?tx_ttnews[sViewPointer]=1
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700.16 Emergency Illumination. Emergency illumination
shall include all required means of egress lighting, illuminated
exit signs, and all other lights specified as necessary
to provide required illumination.
Emergency lighting systems shall be designed and installed
so that the failure of any individual lighting element,
such as the burning out of a lamp, cannot leave in total
darkness any space that requires emergency illumination.
 
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