In article ,
John Rumm wrote:
and measure the voltage. Even with a high impedance DVM, anything over
a couple of volts indicates a fault.

Between what and what though?

Between a true earth and the 'faulty' socket? A start would be between the
main earth and the socket. Of course this doesn't prove the main earth.
You'd need an earth loop impedance tester for that.

However, the far more likely fault is in the wiring, rather than earth.

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*Someday, we'll look back on this, laugh nervously and change the subject

Dave Plowman London SW
To e-mail, change noise into sound.