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18th edition question

Andrew W

 hi started to study for my 18th, wots you guys think the answer is, something tells me it’s different to wots on the answer sheet 

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  • 0

    It's an earthing conductor.

    I've just done the "18th Edition exam" and this one came up.

  • 0 in reply to Stuart Urban

    Of course it is, it provides the connection of the installation to Earth (provided b the cable sheath. The Installation is TN-S.

    More interesting would be the name of the Link to the supply neutral in a TN-C-S installation. It should be G/Y and is again the Earthing conductor to the MET (one way or another)

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  • 0 in reply to Stuart Urban

    Of course it is, it provides the connection of the installation to Earth (provided b the cable sheath. The Installation is TN-S.

    More interesting would be the name of the Link to the supply neutral in a TN-C-S installation. It should be G/Y and is again the Earthing conductor to the MET (one way or another)

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