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  1. SHANEPERCH

    FLOATING GROUND PROBLEM IN 480V DELTA CIRCUIT

    I have 9ea 480v circuits feeding approximately 129 400w MV fixtures. Four of the circuits indicate current carrying conductors are somehow connected to ground. Indeed when we meter one side of the 2 pole circuit we get 480v not 277 and the other side registers zero. It is inconceivable that...

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