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Plastic to brass light switch: extra earth required?
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John Rumm
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Plastic to brass light switch: extra earth required?
wrote:
I always turn the power supply off before I unscrew any switch face
plates.
By opening the (single pole) MCB perhaps? If so remember that you ought
to treat the neutral as a live conductor as well - hence you still want
the back box earthed even if the screws are removed.
--
Cheers,
John.
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