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  1. N

    Need to modify my main panel

    Hello all. Thank you in advance for any guidance. I am in south Florida and I am a DIY person. About a year ago, I hired an electrician to install a new exterior main breaker panel and also a new sub panel in the garage. The house was built in 1975 and had aluminum service wires. The...
  2. W

    sub main breaker tripped by 20+ sub sub breakers

    I have been living in this house for five years. From time to time, the sub main breaker (bottom-right in pic1, the RCCB breaker that is tripped in the photo) for the ground floor would be tripped. This happens during the raining season (June to October). In the dry season, there is no problem...
  3. D

    Boiler tripping main fuse

    I have a grant vortex combi boiler and it has started tripping the main fuse when the programmer calls for heat. Any ideas. Regards
  4. Mark42

    Does a 3 Phase socket supplying a Portacabin's 30mA-protected DB still need its own RCD protection?

    This month I'm building a remote lab for specialist chemistry work, in a self-contained 'Portacabin' type building. The cabin will have a new, Hager 3 phase board, with an 30mA RCCD main switch. It's only a single small room so I'm not bothered about the possibility of the whole installation...
  5. M

    Advice on spur socket from ring main

    I’m after some clarification please. I have wall mounted the TV and want to install a double socket behind it. I planned on taking a spur from the socket as shown in the photo (bottom right) running the 2.5mm T&E cable in the safe zone to behind the TV. The cable run is 2.4metres and the new...
  6. Adie moore

    no main fuse

    doing a eicr today and the apartment im at, along with all the others, has no main fuse. there is a big service head, possibly containing individual phase fuses, but I've not opened it up. from there you have single 25mm tails going in to each meter for each apartment, then in to an isolator...
  7. C

    UK IDNO who will move main supply, fuse

    I want to move my main supply, fuse, cutout etc from the partition wall under the stairs to the brick wall opposite. There’s enough slack on the cable, it’s not ancient and it would be in a better place than it currently is. UKPowerNetworks have been hard work about it. There’s plenty of places...
  8. F

    Using a garage CU as the main CU for flat

    Hi, If a home only uses 3 circuits, Can you use a 3 way garage CU as a replacement for the current old style CU (5 way with 2 spare)? Are garage CU just little standard CU's? Is not having spare room for additional circuits a c2 fail on EICR? Cheers
  9. S

    UK Electric supply to new shed.. The main property is TT earth system.

    I propose to use a redundant shower supply that terminates in the attic. This will be connected to swa 4mm 3 core cable and run 45m to a new shed with a separate consumer unit with rcd and 1 6a and 1 20a breaker. I'm not proposing to have any high consumption equipment in the shed. My questions...
  10. AyresomeBoro

    Main Incomer and Meter Mounting

    Hi all, I've purchased a property recently and I've managed to have look at the main incomer today. The main incomer and meter are mounted on slatted wood (looks like floorboard?). Am I right in thinking these should be fixed onto a flame retardant / non-combustible board? I was going to...
  11. M

    UK Selectivity on concealed sub main supply

    EICR: I’ve come across 30mA RCD supplying a consumer unit via a 63A MCB and 16mm T&E. connected via an isolator to the cutout PME. (Ground floor, outside meter cab on wall) The T&E is concealed up the stairwell behind /within plaster into a 1st floor flat above a shop and into the CU so...
  12. J

    What the hell is this main fuse?

    Hi All On a job this morning doing an EICR. As you will see from photos main live conductor showing signs of burning out at termination. Checked tightness of termination and main switch all seemed fine. I thought I would check main fuse rating to see rating of this. Supply is tncs with 16mm...
  13. L

    RCBO Neutral Leads bunched with Main Neutral in Main switch - C3 or C2?

    Hi all, Engineer carried out EICR and marked the above as a C2, I agree, the smaller cables could come loose easily as the terminal is mainly clamping the 16mm tail. Client said C3....
  14. B

    Main Breaker box Wiring

    Hello Gentlemen Great Forum! Newbie to this place, not sure if am posting my question in the right section. I am attaching a pic showing wiring to the 220-240V main panel, my question is this the correct way of making these connections? I do feel something is missing here as I am confused with...
  15. S

    Capacity on ring main

    Hi, I'm a DIY'er, new to this forum. My situation is, I'm laying a new kitchen ring circuit for my sister. The ring will supply the obvious kitchen appliances including 3kW oven, fan, washing machine, dishwasher, f/f, microwave, toaster, kettle, plus an elec fire at the far end. Potentially an...

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