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Bored? Then Why Not Test Your S.P.D?

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    Still not convinced. Certainly doesn't seem to be in compliance with 534.4.7 … unless their 30mA RCBOs can claim immunity to at least 3kA 8/20.

    Even using S-type RCDs comes with a warning that some surge currents can still cause a trip.

       - Andy.

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    Still not convinced. Certainly doesn't seem to be in compliance with 534.4.7 … unless their 30mA RCBOs can claim immunity to at least 3kA 8/20.

    Even using S-type RCDs comes with a warning that some surge currents can still cause a trip.

       - Andy.

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