Higher than 1 ohm to 10 ohm
Should not be more than one ohm
Greater than 10 ohm to 100 ohm
Greater than 100 ohm
Not less than 1 m
Not less than 1.5 m
Not less than 2.0 m
Not less than 2.5 m
Not less than 2.0 mm
Not less than 2.5 mm
Not less than 3.15 mm
Not less than 6.5 mm
By increasing the dia of pipe
Connecting number of earth electrode in parallel
By increasing the depth of earth pit
By connecting insulated cables
Commercial buildings
Industries
Generating station
Domestic buildings