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Excellent pieceAluminium bar
Generally current carrying capacity of Al. is 0.8A per sqmm and Copper is 1.6A per Sqmm.Suppose we need bus bar for 630A, and we are going with Aluminium bus bar= 80*10*.8=640Awhere 80*10 is size if bus bar usually available is the market.so we can use 80x10sqmm al. busbar per phase for 630A.for TPN- (3.5)x80x10If we are going with Copper bus barthan we will use = 40x10sqmm per phase= 40x10x1.6=640Awhere 40*10 is size if bus bar usually available is the market.so we can use 40x10sqmm copper busbar per phase for 630A.
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