Answer / iamdon

Earthing of a machine is checked with the help of a devies
called earth tester.For proper earthing, reading of tester
should be from 4-10 ohms approximately.

Author:arbelectbit@yahoo.com

Answer / k.cs

This method of checking is ok,but there is a chance of
electrical shock may be felt by testing person by mistake.
Hence it is always advisable to test at electrical socket
with out connecting machine in the socket, that is there
willbe a 1-3 voltages should be in between neutral and
earth points.

Answer / puneet

earthing we can check by measuring the voltage betwwen phase and machine earth point if we get the voltage then it is ok

Answer / avi gulia

earthing can be checked by either checking voltage between the phase and earth or by checking voltage between the neutral and earth it should be 2 to 4 volts.

Answer / b soni

Earthing of a machine is checked with the help of a devies
called earth tester.For proper earthing, reading of tester
should be from 1-5 megaohms approximately.

Do anyone know how can I calculate earthing for substation or do anyone know any software which I can use for this case

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