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  1. ChuckArthur

    Delta Secondary Ground Fault Indication Req'd?

    Check out NEC Article 250.36 item (3) which does require some type of ground detection for High Resistance Grounded (HRG) systems. I have always figured that this would apply to ungrounded systems as well since a HRG system "looks like" an ungrounded system except that it can eliminate the...

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