mains

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  1. OttoF

    How to tell if mains sockets are on same circuit?

    Is there a safe and easy (but also precise) way to tell if two separate mains sockets are on the same circuit? I need to know because I'm trying to use existing mains circuitry to create an ethernet network in a communal area of a multistorey block of flats, using Powerline Adapters...
  2. S

    Mains Powered Medical Headlamp repair query

    Dear Electricians, I am a veterinary surgeon and need help from someone in the know as to how to bring an old bit of equipment back to life. It is a headmounted lamp with a special mirror to allow examination of the retinas of dogs and cats, however my query relates to the power supply for the...
  3. P

    Mains isolator query

    A fellow electrician wants to install a 100A isolator switch between the meter and cu. Is it correct that this also has to be metal as per 3rd ammendment. The wylex rec2 is plastic so does it need to be changed. Of you could share your expertise please.
  4. M

    Converting mains for Nest Thermostat HELP

    Hi, I was hoping someone could help me. I have recently brought a 3rd gen nest and installed it myself. I am currently using the usb stand however I want to mount the thermostat on the wall. I can't run cable from heatlink to thermostat, not possible. However in the kitchen near to a light...
  5. John oakley

    Removal of PIR from circuit

    so I have an porch wall light that is switched inside the house which has a separate PIR outside the porch. I am removing the PIR completely (as it no longer was switching the porch light on so assumed the pir was defective as the external floodlight on the same pir wiring (next paragraph) is...
  6. diyterry

    Are mains sockets permitted in bathrooms?

    Hello. I am extending my bathroom, but one of the walls that will be incorporated into the bathroom has a socket fitted. Is this allowed in a bathroom or is it best to remove the socket and fit a cover?
  7. Mark42

    3-Ph sub-mains on four 16mm DI singles. OK or not?

    I'm upgrading an existing installation in my own house, and would like a second opinion please. An existing sub-main, in a separate building about 10m from the supply is fed via four existing 16mm DI meter tail cables in cable tray and conduit. I inherited this installation from when the very...
  8. S

    Re rerouting mains and dno responsibility

    Good afternoon all, I have a client that is having works done on there front drive and the landscaper has stumbled across the mains supply cable 20cm or so in the ground. Unfortunately the cable is too high up to be able to high up and needs to be moved down, I had advised my client to talk...
  9. L

    Block of flats mains room location.

    I'm starting a block of 15 flats Wednesday, the building is being converted from an old care home. The original wooden staircase is staying in place throughout in the communal area. I've just received a revised set of drawings which shows the mains room mostly situated under the staircase...
  10. gazdkw82

    New mains tails for C/U from separate DB

    Had to install some new mains tails for a small C/U replacement. The new mains tails come off a 3phase enclosure bus bar system. It's pretty Jurassic by the look of it! I understand the testing process for the new board and I understand how to test the tails, however, I'm not sure on how to...
  11. J

    Mains tester showing Oven casing as live

    When I turn my oven on and touch a mains tester screwdriver against the casing it illuminates. It’s only happens when the heating element is on. The oven heats well and shows no other signs of issues. The casing is clearly not properly live as it’s touched all the time. Is this something to...
  12. R

    Dangerous mains - Please help me identify this

    Hi All, I'm living in a pretty dangerous situation - Please can you help? A few months ago, the electricity in my first/second floor flat blew out, as did my neighbours. It turns out that there was a fault in a mains component under the stairs. I had to get an electrician out late at night...
  13. Jim90

    Lamp post under mains pylon question

    Hi guys, We are replacing lamp post heads on a site and all is going well until we reached a set of 4 underneath 11/33kv pylons. We are getting a horrible ‘belt’ off the casing of the lamp post head. The post is coated so unable to receive a belt at low level. All we can think of is it’s the...
  14. J

    Mains doorbell wiring

    Hi new to this site Was wondering if anyone could help me with the wiring on this mains doorbell please will attach a photo Many thanks
  15. J

    Can incoming mains run above ground under suspended floor?

    Hi all. I'm looking for some expert advice on the above. I am having an extension built and the footings are a raft slab which can be built/poured under the existing incoming mains cable (it's in a black pipe approx 50mm dia). There will be a suspended floor approximately 100mm above the...
  16. S

    Mains LED spike lights failing

    Hello Just wondering if anyone has experienced any failures recently with their mains LED garden spike lights? Have had 2 go completely and one that's barely got any output in the space of a few weeks. Using Deltech lights and can't say I've had a problem before but what with the cold weather...
  17. The Mains Man

    The Mains Man

    Domestic Electrician in South Bristol primarily covering Cleeve, Congresbury, Nailsea, Congresbury, Backwell. Offering a full range of domestic and landlord electrical services including rewires, consumer unit installation, socket & fittings replacement, outdoor lighting. View my Facebook page...
  18. Nick Willder

    Mains domestic LED lamps on 3-way switch glow faintly in one 'off' arrangement

    On my landing are three connected lights. They have 230v LED bulbs. There are three switches - one obviously an intermediate switch. In one of the four 'off' arrangements of the switches, the LEDs glow faintly. Does anyone have a theory on where this current might be leaking to? Thanks.
  19. H

    Crossed Polarity smart meter into mains

    hello! Just looking for some advise, Basically we had an electrician fitting a new shower and lights yesterday, he tested a light socket before touching it (after turning all fuses off) and it was live... come to realisation an electrician working on behalf of an energy supplier had fitted the...
  20. B

    Splitting a mains supply

    I recently bought a property consisting of a ground floor cafe and an upstairs apartment. It had one mains supply with a mains meter which supplied the cafe then a sub meter which supplied the upstairs apartment. The landlord subtracted one from the other to give separate bills? I want to have...
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