Hi, I've seen one of the tests on domestic circuits to be a polarity
test on amongst other things switches (and sockets?). Could someone
explain this to me please.
Would the Electricians Guide to the Regs explain this sort of thing?
On Tue, 16 Sep 2003 20:51:25 +0000 (UTC), Niel A. Farrow wrote:
It's to make sure that the socket hasn't been wired wrongly, such that
the live and neutral are transposed. If they were, then switching off at
the plug would leave an appliance switched off (because the neutral is
disconnected), but still energised at mains voltage.
The polarity test is indeed carried out on switches and sockets to ensure the
switches are connected to the phase conductor , it is simply done by connecting
a continuity tester betneen phase and neutral and operating the switch.
The electricians guide will explain this test
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