Answer / prabhas

Usualy in large industries the cable size is calculated,
for 1A of current its 1 sq mm of aluminium cable and 0.5sq
mm of copper cable.

Ex: In case 600A : 300 sqmm or 2R x 150 sqmm cable to be
preferable. in same case iys 150sqmm of copper cable is
enough.

Prabhas

Answer / n r@jesh

For Al. cables 1Amp = 1 sqmm
For cu. cables 2.5Amps = 1 sqmm

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