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    MK RCD Ramp test random results

    Well since I posted my original post I have fitted the BG RCD and sent the "duff" one to MK who claim that it is ok. Interestingly the system has been stable since fitting the BG RCD of the same rating as the MK one. I have an Amecal ST-9810 Leakage Current Tester and have a total leakage of...
  2. I

    MK RCD Ramp test random results

    There was a garage RCD unit with a 40A 30mA fitted but I replaced that with a switch and the was also an RCD prot cited socket which has been replaced with a normal twin socket. As the whole installation is covered by the two main RCD's I thought they were superfluous.
  3. I

    MK RCD Ramp test random results

    Edit Forgot to mention our supply is TN-C-S in a rural setting, bulk of installation dates from 1988 when house constructed. Have noticed the lights flicker at times but so does the neighbours. A day or so ago there were two large fluctuations in our supply as confirmed by neighbour. Our RCD's...
  4. I

    MK RCD Ramp test random results

    Hi guys I am rather perplexed as I have recently fitted a dual RCD Sentry (App 3 compliant) consumer unit. I am suffering a random tripping pattern with one of the RCD's (63A, 30mA) which sometimes pops the other (80A 30mA) at the same time. I have stripped everything down and insulation...

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