In a three phase system three wires are of colour red, yellow and blue are used to discriminate each phase. Now how will you identify each phase wire without knowing the colour and without any pre information?

Soumya Ranjan Nayak

• Dec 28th, 2017

Go for continuity test from source end & at testing end test in discharge condition.

WALT SLADE

• Nov 22nd, 2017

The neutral is often at the very top of a pole or it could be below the three hot phases. If all the wires are side by side, it sometimes uses a smaller insulator because theres very little voltage on...

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If we connect a voltmeter between earth and ground wire, how much it will measure?

bittu123

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• Nov 9th, 2011

there is no difference bet earth wire and ground wire, both are same thing. BUT, if U mean earth as soil (i will refer soil as earth), and U disconnected ground wire from soil and put a voltmeter in ...

p2atik

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• May 16th, 2009

Since the earth and ground wires are at same potential there will be no potential displayed in the voltmeter,But on the contrary volts?may be displayed between the?NEUTRAL and the ground/earth wire.

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