why we generally use 3.5 core cable or in other word 1/2
core for neutral and also confirm me that in balance
conditiob(3 phase)current in neutral will zero
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Answer Posted / blake australia
Any switch mode power supply (computer, UPS, AC/DC
transformer) has some leakage current and imbalance. In
data centres they are starting to use full size neutral
cables to account for this. Basically only need 1/2 size in
motors, saves money on expensive copper
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