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Re: CQD answer published Wednesday, November 6, 2019 - Emergency circuits
1) Totally disagree with Tuesdays answer. the circuits are kept separate but may run the entire length of a row of lighting picking up the EM ballasts drops. He did not say they were Emergency Backed up circuits off a Standby generator which must be separated. Bill Schell
Hey Bill and Jeff, thanks for your comments and the kind words. You are both correct - emergency source wiring must be kept entirely independent from all other wiring and equipment - unless permitted by the conditions of 700.10(B)(1) through (5). That is what our answer stated, or at least what we intended. The original question stated that there was 44 feet of light fixtures (luminaires), 2 of which are emergency lights. They wanted to run both normal circuits and the emergency circuits down the entire row and use the emergency circuits to supply the 2 emergency lights. That is not acceptable.
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