Answer / k

use IS 3043

earthing cond size in sq mm S = A * sqrt(t)/k

A = fault current in amps
k = factor given in IS

refer website : www.jptechnosoft.com

In both 600/1000 V cable and 450/750 V cable, we can supply 415 V. However for distribution, all utilities are using only 600/100 V instead of 450/750 V. What is the reason?

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Any one who apply for Ferro Scrap Nigam Limited cn join with me at rajuhalder@indiatimes.com or 09669717028

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about your self?

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