Answer / 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.

Answer / k.prakashchandra

300 t0 400 sq mm bus bars for phases only

Answer / binsu.s

63.5x12.7mm Aluminum Bus for phase and 63.5x6.4mm Aluminium
bus for neutral

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