In article ,
John Rumm wrote:
If you want to investigate this yourself, a good first test would be to
check continuity between your main earthing terminal (should be near the
CU), and the earth pin of the socket in question. You can do this with
an ordinary multimeter in the first instance (you may need a long wire
to be able to extend on of your probe leads!).

*Turn the power off first*

I'd think a better way - since extending the test leads makes a nonsense
of any accurate resistance reading - would be to set it to 250 volts AC
and measure the voltage. Even with a high impedance DVM, anything over a
couple of volts indicates a fault.

--
Is the hardness of the butter proportional to the softness of the bread?*

Dave Plowman London SW
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