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why insulation cost is more in underground cable than in
overhead line?
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Answer Posted / sk.azhar.m
An underground line is fill in the earth and when if the leakage current will flo in the erth the current rating will very high in the cable that is very dangerous for human and other and in the the overhead line the air is not good conductor of electricity while an underground line is more insulation than overhead line for this reason the insulation cost is more in underground system
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