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A neutral wire provides a return path for the hot lead while an earth or "ground" wire is provided as a safety function only that is not normally intended to carry current except for the purpose of operator protection.

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14y ago

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How can measure nutral and earthing wire?

Nutral wire can be measured by using clamp meter, if there is a current passing through the wire, we got a reading in the clamp meter i.e. 2A. If we clamp the earth wire by the clamp meter the reading will be zero.


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In formal electrical jargon, "potential difference" describes voltage. So a 120 V live wire should have a 120 V potential to the earth wire.AnswerIt depends where you live. In Europe, the nominal potential difference between a line and earth conductor is approx 230 V (approximately, because earth potential might be a little lower than the neutral potential); for North America, the nominal potential difference is about 120 V.


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How do you identify nutral and earthing wire if they change?

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