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  1. B

    RCBO problems

    Got a call out today to a house. The fella told me everytime he plugs something into the ring main it trips the RCBO. So upon investigation I found a neutal to earth fault on one cable. The cable could not be replaced without great damage so I split the ring into two radials. Thing is the RCBOs...
  2. S

    Ring final fault - please help !

    I'm doing a PIR on my flat and I've come across a fault I can't work out. I'm getting a very low (about 0.1Meg Ohm) insulation resistance between Neutral and Line conductors on one of the ring circuits. However I'm not getting continuity between Line and Neutral and the MCB isn't tripping...
  3. stef

    The Green Book

    Hi all, I read in this forum some days ago about the amended 17th and a new book. So, we have to buy a new 7671 book, a new on site guide and of course the guidance notes as well? :eek: I think they should go for an electronic version which then can be updated easily and cheap and it won't...
  4. J

    There's an App for that...

    Hi Guys Has anyone ever thought of creating an app for the ipod (or other smartphone) that has an electronic version of the 17th Edition, with an intelligent search engine so it could either jump to the right area, or give you a page number to try?? (or as a newb am i missing the fact that...
  5. A

    Which trips first? ... there's only one way to find out ...

    There must be larger hole in my knowledge than I appreciated, as I can't get my head around why both the mcb and rcd should trip on short to earth. :confused: Situation was wasa taking quick peek into a live double socket to check which way ring ran out the back of the dry wall box. About to...
  6. E

    double pole switch

    Was wondering what the proceedure was for changing a consumer unit. I was under the impression I could request EDF to install a double pole switch so I'm not messing about waiting for someone to come and pull the main fuse (or to break the seal and do that myself). I called EDF and they said...

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