Andrew Pineo

110.16(a) Exception needed?

Discussion created by Andrew Pineo on Mar 15, 2017
Latest reply on Mar 15, 2017 by Steve Benton

NFPA 70 2017:  110.16 (A) Electrical equipment, such as… industrial control panels, …shall be field or factory marked to warn qualified persons of potential electric arc flash hazards, but why is it that NFPA 70E 2015:  Annex D. Table D.1 Limits of Calculation Methods.  Minimal parameters appear to be 208 volts three phase for arc flash calculations?  Doesn't this essentially say that 120VAC industrial control panels with only controls should be an exception to 110.16(A)?

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