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Unused Earth Rod in Garage.

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I was working in a new Mac. and Stone house today. In the garage is a nice new metalclad garage unit. It is supplied from the P.M.E. house supply and is earthed via the S.W.A. armouring and a third copper core. Under it is a 4.0mm2 green and yellow single wire running down to an earth rod that travels through the concrete garage floor. In the garage unit the green and yellow is stripped at its end but not terminated. It is just floating in mid air.

Why is it there? Was it left for a possible electric vehicle charger?

 

Z.

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    Sparkingchip: 
    Because it has a sheet of polythene under it.

    Good point! However, the floor (and my pit) is not as dry as you might think. The moisture evaporates and the atmosphere does not make things rust, but if I put down a plastic sheet, it gets wet underneath.

    The fact remains that I would have had some form of foundation electrode installed (under the polythene if necessary) had I known.

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  • 0

    Sparkingchip: 
    Because it has a sheet of polythene under it.

    Good point! However, the floor (and my pit) is not as dry as you might think. The moisture evaporates and the atmosphere does not make things rust, but if I put down a plastic sheet, it gets wet underneath.

    The fact remains that I would have had some form of foundation electrode installed (under the polythene if necessary) had I known.

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