how to calculate the size of cable for 100 kva load,?can
somebody tell me with a formula

Answer Posted / naresh kumar dhal

100kva load has total current of-139 amps.

if we consider derating factor=0.8

Then total current=139/.8=173 amps

For 173 amps we can use 120 sqmm cable.
Its current capacity=1.5*120=180amps

Is This Answer Correct ?    33 Yes 17 No



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