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Earthing or bonding ?

MrJack96

I see it a lot where the SWA isn’t serving as a protective conductor which I know it must still be earthed at one end due to being an exposed conductive part. My question is if multiple SWAs are all earthed at the supply end and meet again at a bit of equipment if we then connect all the SWAs together locally is this still classed as earthing even though they are already earthed at the supply? 

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    Now the sheath plastic is not conductive, so it fails this test,

    So we're relying on something that has no defined insulating properties to prevent contact - so what about BE steel conduit - the paint prevents anyone directly touching the steel - so does that make mean conduit is no longer an exposed-conductive-part? Or back to the flush steel box - is it OK to rely on (possibly damp) plaster to prevent contact?

       - Andy.

  • 0 in reply to AJJewsbury

    416.1.

    Z.

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