Art 700 wiring

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Isaiah

Senior Member
Location
Baton Rouge
Occupation
Electrical Inspector
Construction has installed an Inverter to act as the source for an “emergency” lighting system. They’re saying the wiring has to be in a separate conduit, but I don’t believe this meets the criteria of art 700, ie there is no genset involved and I don’t believe human life is at risk.
Any thoughts?


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tom baker

First Chief Moderator & NEC Expert
Staff member
Location
Bremerton, Washington
Occupation
Master Electrician
I don't see language in 700.1 scope and 700.2 Emergency Systems that limits a 700 system to generators.
Its common in larger buildings to install inverters for E lighting instead of multiple bug eye lights. A army base and naval station I instructed classes at always used inverters for e lighting. The interter would of course be listed as a e-light source.
If the inverter or wiring fails then there would be a risk to human life, unless I am misunderstanding something
 

Strathead

Senior Member
Location
Ocala, Florida, USA
Occupation
Electrician/Estimator/Project Manager/Superintendent
My opinion is, that you are incorrect. In fact, I believe that the wiring between, for example an emergency/exit light and a remote head outside the door is a "legally required emergency system" You inverter and the associated load wiring is a "legally required emergency system" and as such must be wired per article 700.
 

Isaiah

Senior Member
Location
Baton Rouge
Occupation
Electrical Inspector
My opinion is, that you are incorrect. In fact, I believe that the wiring between, for example an emergency/exit light and a remote head outside the door is a "legally required emergency system" You inverter and the associated load wiring is a "legally required emergency system" and as such must be wired per article 700.

Agreed — thanks to Tom and Strathead


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