Answer / k.prakashchandra

Above 50 sq mm cables are usually used 3 phase loads and
fair balancing of loads is expected.As the neutral current
is unlikely to exceed 50 % of full load ,half the core size
is sufficient to save money

Answer / diwakar

We even have three phase loads used in 25 and 35 sq.mm.. cant say that as the reason alone.

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How i can calculate the cable size for given load,there is any formula,for 3 phase and single phase

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