Which of the following installations does not require ground fault protection of equipment? A. Branch circuit disconnect rated 1,200A, 480V/277V, 3-phase, 4-wire, in an industrial building where this ...
Q. When is ground fault protection of equipment required for feeder circuits? A. Each feeder disconnecting means rated 1,000A or more supplied by a 4-wire, 3-phase, 277/480V wye-connected system must ...
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