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    wayne306's Avatar
    wayne306 Posts: 4, Reputation: 1
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    #1

    Oct 27, 2010, 08:48 AM
    Why thunders tripping RCD
    Hi, can any one tells me why thunder tripping RCD, and how can I solve this problem?
    Thanks and regards Wayne
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
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    #2

    Oct 27, 2010, 09:27 AM
    Where do you live? RCD terminology is not widely used in the US. We use A GFCI which is basically the same. I don't think thunder is the problem, I think it is the lightning. You are either getting a surge or ground fault that is tripping the unit. Is it outside? Does it get wet? That's a common problem when water gets inside. Make sure that grounding is properlyconnected in the box, the unit stays dry and all ground wires in the outlet box are connected.
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #3

    Oct 27, 2010, 09:53 AM
    Yes, RCD is short for Residual Current Device, the European equivalent to the USA GFI device.

    Here is a RCD manufacturer that recognizes the issue with lightning causing nusiance tripping of RCD units.

    http://www05.abb.com/global/scot/sco...21002B0201.pdf
    wayne306's Avatar
    wayne306 Posts: 4, Reputation: 1
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    #4

    Oct 28, 2010, 07:21 AM
    Yes the rcd is inside in the consumer unit. Is the earth electrode which is outside but it is connected properly.
    wayne306's Avatar
    wayne306 Posts: 4, Reputation: 1
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    #5

    Oct 28, 2010, 07:55 AM
    By the way thanks for the pdf file it is very help full and I think that's the problem. Thanks a lot Wayne
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