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  1. J

    MCB short circuit capacity

    6 amp BS EN 60898 .....6ka being the maximum fault current the device can handle, although the device may no longer work after that. The 3 underneath this being the fault current (ka) the device can handle without damaging it and then being able to be reset. I have been told 2 different...
  2. M

    Awkward sign-lighting job

    Hi, I've been asked to install an outside light to illuminate a sign for a small business. Problem is that the shop is 3 floors up and I can't easily get above the sign to light it from above. It can be reached from the side, and I'm currently looking for an outside light that could shine...
  3. K

    RCD tripping at half the rating ?

    Hello, i was doing an RCD test yesterday on half its rating, and the rcd kept tripping everytime, does this mean the RCD is faulty?
  4. W

    EPC Rating Timing

    Hi Everyone, First post!!! Having my install in the next few weeks but Father in law also interested however his property significantly older (1960's Semi, solid walls, little to no loft insulation). Long story short we reckon he could be an E rating now and a D once he has Solar PV so does...
  5. kingeri

    Reinstating IP rating of CU

    Been working through the night on a rush job, just nicely getting to looking at the CU. It needs moving about a meter to the side. At the moment, the cables enter it from above, and all the knockouts have been removed on the top of it. This has obviously destroyed the IP rating of it. When I...
  6. D

    Ring Circuit Question

    Hi all, In my house I have a ring main which covers two floors, from which I have created two spurs with 2.5mm cable. I am drawing 3000W on each spur and on the ring sockets probably around 500w making a total of 6500w. Do you think this is dangerous as it is exceeding the 24A rating on 2.5mm...
  7. kkkkk

    Rangemaster oven Cable size and MCB rating

    Rangemaster oven 15/16kw with 7 to 10m run of cable, specifies to use a 45A rated cooker circuit breaker - we would use one with a socket. Can be 6mm or 10mm cable, depending on which cooker connections one uses. Would it be better to use the 10mm cable, and would the MCB be 45A rated, or...
  8. saucyjack

    service fuse rating

    Quick question for some advice if possible? Obviously the main service fuse type and rating needs to be written up on an EIC, but what to do when there's absolutely no info on the service head?! Almost no doubt it'll be a 1361, but obviously can't just guess the rating, so cut-and-pull, or what...
  9. R

    Can up rating a 6A MCB to 10A 'blow away' water ingress?

    Scenario - 6A MCB trips, not on the RCD bank. Shower had leaked, causing lights to dim over 6 weeks, went off a few times. MCB will not reset. Spare MCB will not either. Cables found and routed directly under the shower tray (200mm from drain hole) - 99% certain there is one or several JB's in...
  10. S

    Outdoor socket

    Hi.I want to put 2 christmas silhouettes at the front of my house. I'm just wondering if the socket kits you can buy from B&Q with the socket, cable & RCD plug are safe to use? I've read some stories saying they're not. Thanks
  11. K

    Main fuse rating

    Not an electrician but a reader of your forum, I had british gas around change my supply from 3 phase to single phase (used to be a pub now a domestic dwelling and my electrician advised just using single phase to reduce 415v across different points in the house) The British gas guy replaced...
  12. R

    Mccb rating

    Regarding mcb and mccb What is the lowest rating of mccb available
  13. S

    buzz bar rating

    I have a old library to test and today I found an opening to look at the buzz bar it's solid copper 25mm what would the rating of this be as 250a bs88 fuses are the power source for these power to 5 3 phase distribution units
  14. N

    Ip Rating For Freezer

    Hi guys, was in a job today replacing damaged (burnt out) lights in a large (-25*C) food storage freezer, the lights appeared to be waterproof as it had a rubber seal around the cover etc... But condensation still appears to be coming in somehow, just wondering if there was a light specific for...

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