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Testing A-type RCD at half times 100m/A ?

aligarjon

I watched a video the other day which mentioned that A-type 30m/A rcd's should be tested at about 54m/A i think it was and that setting your tester to 100m/A and doing a half times test was was acceptable.  Is this correct and where does it come from.

Cheers.  Gary

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    sounds like cobblers to me. Or more charitably a misunderstanding of the specs.

    On a normal AC waveform of a resistive fault or a normal tester  a 30mA A type, should still trip reliably at 30mA, just like the older AC type.

    Only when tripping on a rectified but un-smoothed   waveform is a higher trip level accepted. (as it is the p-p swing that matters)
    Mike

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    sounds like cobblers to me. Or more charitably a misunderstanding of the specs.

    On a normal AC waveform of a resistive fault or a normal tester  a 30mA A type, should still trip reliably at 30mA, just like the older AC type.

    Only when tripping on a rectified but un-smoothed   waveform is a higher trip level accepted. (as it is the p-p swing that matters)
    Mike

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