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Answer Posted / prashant dave
iF WE USE COPPER BUS BAR
IN COPPER BUSBAR CURRENT PASSES IN 1 SQ. MM= 0.8A
SO IF IN 630A WE HAVE TO USE 85MM X 10MM X 3 FOR 3 PHASE
AND WE HAVE TO USE 85MM X 5MM X 1 FOR NEUTRAL BUSBAR.
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