sir what is the minimun earth resistance value of an industial bit and grid b

sir
what is the minimun earth resistance value of an industial
bit and grid bit ? and Why?

Question Posted / dil_sen_2010allinterview

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sir what is the minimun earth resistance value of an industial bit and grid bit ? and Why?..

Answer / ashutosh kumar shukla

Earth resistance Must as low as possible to whom even if
any small leakage will occurs can easily be ground
Max. Resistance for

power industrys is: 1 ohm
Communication System :0.5 ohm is allowed by Indian
Standered & Building Codes

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