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  1. steamboatwilly

    Two new Wylex RCDs both failed tests

    Folks, A bit baffled (not difficult) ... added a light switch in a rental this week (empty property so no social distancing issues) and checked the RCD before I signed off. It was a Wylex 80a 30mA and it failed all tests (inc. ramp) so I like-for-like replaced it. The new one also failed all...
  2. S

    How do I certify when there are no rcds to test

    I have an elderly client that wants some additional sockets adding to a ring final circuit, some are simple spurs and some will need the ring extending - pretty simple jobs. she also wants some independent switching in her lounge, an additional light in the hallway with 2 way switching - again...
  3. S

    Domestic Laos - no earths, no RCDs... advice please

    Hi everyone! :) I've just recently moved to Laos PDR and was shocked (no pun intended) to find that the whole house has no earth wire (i.e only Live and Neutral) going to all sockets and appliances... to top it all off also no RCD's... its completely ridiculous. I am not an electrician and...
  4. D

    Rcds in series

    Hi, Regarding discrimination requirements in regs.. If a second cu is fitted in a shed or outbuilding supplied by an rcd protected way at the main cu then it provides protection at a change of cable size due to the mcbs but that leaves two rcds in series with no discrimination. However is...
  5. W

    RCDs when to use

    Sorry I’m struggling to use the new search to find a old post ... I need refreshing spoke to a few sparks and they say just put a rcd for everything... But what are all the 18th edition requirements when to have an rcd? Thanks
  6. C

    AFDDs are a massive fraud

    Derailed another thread with AFDDs, so I am starting this one. I will simply say that UK RCDs and MCBs provide arc fault protection as is. UL not only knows that, but extensively researched UK power systems in an effort to emulate the very same concept 40 years. One the simply fact (growing...
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