mains

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  1. L

    Mains connection problem?

    Hi all Maybe this type of question is not for this forum.. its just im struggling to get information Ive attached a map detailing a local supply network I need to have some idea where it would be possible to connect up to mains power supply On the map it is the building between where it says...
  2. T

    Removed these from a mains change today

    Evening all Picked out these bad boys from a few board changes the other day. Not sure if they are worth keeping?
    • TJC1
    • Thread
    • change collection crabtree main switch mains removed these today
    • Replies: 2
    • Forum: UK Electrical Forum
  3. Sparky10

    Radials V Ring mains

    Hi all, This may be a common topic and may already have been spoken about 100s of times so forgive me in advance. I have always wired in ring mains for my sockets up until recently.. I came across an install where all sockets were wired in 2.5 radials protected by 20A RCBO they had wired 3...
  4. V

    Landlords EICR and t&e sub mains without RCD

    Hi All Been doing a lot of EICR for landlords recently due to new legislation and agents i guess. One common issue im finding even with relatively new (10 years) old installations is a T&E sub main. Now some of these have a 100mA rcd .. or no RCD .. some are even wired in concentric cable...
  5. B

    Non standard mains plug on washing machine

    Anyone seen a non-standard mains plug like this on a standard domestic washing machine? Why would you do it? Any reason not to replace with a standard 13A plug?
  6. S

    How to wire a new double mains socket?

    I have 3 grey cables, each has a red, a blue and a yellow, not yellow and green wire. I wish to wire up a new double socket where there was previously just a hole in the wall with these 3 cables poking through. The location is where there was previously an Emerson heater that has been removed...
  7. B

    mains leads

    Mains Leads. I supply machines that are 21 amp per phase. the CE certification states a 2.5 5 core lead should be fitted. Which we do. I have been asked to fit 4.0mm because the mains breakers are 32 Amp. Isn't this the wrong way round? if the fuse was bigger it makes no sense to fit a bigger...
  8. B

    PME exported from mains

    Hi All Just finished an EICR on a big 7 bed property. The incoming supply is PME. They have got the incoming head located approx 30m away from the Consumer Units. There is a Henley block in the mains and a previous contractor has ran a split concentric to a solid link fuse and then done another...
  9. M

    6 core flex mains and low voltage

    CP electricians supply a 6 core cable from their lighting control boxes that supplies a mains voltage emergency light,, 2 cores of this are 18v dimmable switching. A led lighting company have provided the led lights and drivers that connects to the 6 core flex however their emergency pack and...
  10. T

    Unskilled labour working on mains electricity

    Morning All. I wonder if i can ask for an opinion on an issue please.I work in a maintenance position for a fairly large global company who have site in the UK.I became aware that our management have been using our in house data engineers to carry out electrical installations on some of these...
  11. S

    Mains cable from supply to consumer unit

    Hi, have a metre box 4m away from consumer unit, there is going to be an extension on the side adding an extra 4m so the metre box is getting moved to end of house again. Total length will b 10-12m, at the min the 25mm tails are going from mains to fuse switch with an 25mm 3core swa supplying...
  12. Paul Williamson

    Emergency Lighting Mains Indication Light

    Good morning all, I have a question about emergency lighting and the requirement of an indicator light stating that it is on mains power and charging. The centre that I work at has been refurbed and new LED type emergency lights installed at very high level, I don't know what MCB's control them...
  13. M

    Problem with mains outside light, any help please?

    Hello! I've put up a mains outside light, Been working fine for about 2 weeks, Now it's not working! When I turn it on and off at the mains, the bulb flashes once like a camera, and doesn't light up. I've checked all wiring connections in the light and the plug, Everything is connected. Left it...
    • MadeUpName
    • Thread
    • help please light mains outside outside light please problem
    • Replies: 19
    • Forum: UK Electrical Forum
  14. T

    Converting Tube Heater Socket into Mains Socket

    We have a working tube heater in a cupboard which we do not use. We would like to put a tumble dryer in the cupboard but there is no mains socket, as the tube heater is wired directly into mains, and controlled by a fused switch on the wall. Is it okay to simply swap the tube heater...
  15. B

    Mains wired smoke / heat / CO detector question

    Hi Guys We're having work done to insert an open plan kitchen-diner and snug seating area plus wood burner into already existing extension. One load bearing wall is being knocked through. Electrician just bumped his quote up by £820 to cover replacing this consumer unit and moving it up the...
  16. jackhammerJIM

    Commercial sub mains exceed max zs of mccbs

    Thoughts required on todays scenario . Commercial premises fed from 100 amp 3 phase TNS supply ZE 0.40 feeds 80 amp 3 phase switch fuse (max zs 0.57) feeds 400 amp mainswitch protek panel in 35mm swa 16mm earth 125 amp mccb (0.24 max zs) submain exceeds max zs at 0.57 Had this down as a...
  17. K

    Remote mains switching/control options?

    Hello there, I have a property located in a very rural area that's only partly occupied, its also rented out for short periods. I live 2 hours drive from the property and the issue I have is that people keep leaving electrical items switched on which of course poses a huge fire risk. It can be...
  18. T

    30 Amps DP mains supply concern

    Note: I am not an electrician. I have a large house that has been divided into 4 flats with an additional landlord supply, so 5 meters in total (2 smart meters, 3 dump meters). I recently noticed that there was damage to one of the supply side fuses. I called UK Power Networks who came and...
  19. L

    To connect old turntable to mains earth or not?

    Hi Guys, I am renovating an old vinyl turntable (Thorens TD-150 mkII is anyone cares) It is fitted with a 2-core mains cable, but there are lots of metal parts including sub-chassis and a 240v motor! Normally this is all earthed via the amplifier (phono leads), but I have swapped the 2-core for...
  20. J

    Mains cable blown out on two products

    Hello, Could anyone please identify what has caused this kind of blow-out on a 3-core flex? One is from an electric blanket and one from a heated pillow type thing. I think both cables are the same though, probably the same factory. The 500mA fast-blow fuses inside the controllers and the 3A...

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