Answer Posted / meshach

Earth resistance, is measured by Earth Resistance Device.
Which a good Earthing Resistance is suppose to give:
1) E to N = 0.7 V
2) P to N = 228.6 V
3) P to E = 228.7 V

And Bad Earthing is:
1) E to N = 0.5 V
2) P to E = 16.2 V
3) P to N = 228.6 V

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