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RCD testing question

Marc Lambert

Hi

Just reading GN 3 page 95, operation of RCDs.

I've always thought, (and taught) that you press the test button at the end of the sequence of RCD tests simply because if you you use the test button first you can "unstick" a potentially faulty device and allow it to pass the tests when it might not have?

At a recent CEF / NICEIC Techtalk event they said exactly the same thing, "Join CEF's (or NICEIC) Head of Technical Solutions Darren Staniforth and electrical legend Dave Austin for a TechTalk near you."

Any thoughts on what page 95 GN3 says now? That you press the test button before using the tester?

Kind regards

Marc

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    I agree Mike. I have a nasty feeling that this changed because manufacturers were getting "faulty" RCDs back, which were just stuck. Of course it could be the usual H&S brigade who don't understand, but then perhaps that is too kind. I do it the way I always have. If it doesn't work under all conditions it is useless so....

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    I agree Mike. I have a nasty feeling that this changed because manufacturers were getting "faulty" RCDs back, which were just stuck. Of course it could be the usual H&S brigade who don't understand, but then perhaps that is too kind. I do it the way I always have. If it doesn't work under all conditions it is useless so....

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