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Home Made R.C.D. tester.

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Fred down the pub said that I can save money by not using a qualified sparks to test my R.C.Ds. He said that I can make my own R.C.D. tester. Is it safe? 

How to make RCCB tester at Home - YouTube


Z.
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    It is about the same level of precision as pressing the test button on the RCD, an uncertain  current of unknown duration. Some reassurance in weeding out totally stuck  RCDs and mis-wired sockets perhaps, but I agree a test of limited value. I have made a ramp test/headroom checking rig with several resistors and switches in the same sort of way.


    A real tester allows a known current, and also cuts off the test after a short time if it does not trip, so less risk to users if used  on a faulty installation.

    M.
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  • 0
    It is about the same level of precision as pressing the test button on the RCD, an uncertain  current of unknown duration. Some reassurance in weeding out totally stuck  RCDs and mis-wired sockets perhaps, but I agree a test of limited value. I have made a ramp test/headroom checking rig with several resistors and switches in the same sort of way.


    A real tester allows a known current, and also cuts off the test after a short time if it does not trip, so less risk to users if used  on a faulty installation.

    M.
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