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mains

  1. W

    Gym with lighting over 4/5 circuits and 2 mains

    Hello, currently working on a gym with 4/5 lighting circuits across two mains boards I’m wanting to put some emergency lighting in there and I’m wondering how I do that with this number of circuits across different rcds thanks in advance
  2. M

    Airlux Dishwasher mains cable plug

    Hi Guys The image is connected to the plug on my Airlux dishwasher. It's blows now. I can't find it on line to get it for my electrician. If possible I would [refer to replace this before getting new dishwasher. I have seen a replacement on Espares but it's not precisely the same. Any advice...
  3. Mike Johnson

    Fluke 1633 alternative mains cord

    I have been asked by a good friend to check out the electrical installation in their French holiday home, whilst I am there (free use for test) what is so special about the Fluke mains lead that they want £40.00 for the EU version? I know it has a special plug into the unit, but c'mon £40.00 for...
  4. Marcus Vaughan

    Can anyone recommend a cutable mains voltage LED tape?

    As above really. I've been trying to source a length of mains voltage LED tape to fit behind a purlin, not being keen to try and hide a transformer/driver for 12/24v. Distance is 4.5m but everything I have found at mains voltage is cut by the metre. I know I can do better than that because I...
  5. A

    Consumer unit heights and mains tailsnew build

    are the consumer unit heights for a new build 1350mm and 1450mm. The services to the new build property will be on the front outside wall of the house meaning the tails will have to be passed through the cavity wall. Can I pass the tails up through the cavity wall to a reasonable height and...
  6. V

    1960s Florescent light instantly trips mains RCD

    Hi all, first post! I'm currently restoring a Rockola jukebox from 1964 and I'm very nearly there, there's a problem with one of the florescent lights which I can't seem to get my head around, one of the three florescent lamps the entire house out as soon as you switch the thing on. The...
  7. J

    Commercial TT supply with TNS sub mains

    Would like your opinions on the following setup. 300A 3 phase TT incoming supply feeding 15 units with 50A TNS obviously some link somewhere between Neutral and earth but haven't found it yet. I would think that each unit should be TT not TNS thoughts please
  8. A

    240v LED Strip Light on Mains switch

    Hi all, Hoping for some guidance, which would be much appreciated. I currently have some Florescent Lights under my kitchen cabinets operated by a light switch and would like to replace with LED strip lighting. I have purchased some 1 Metre 240V LED strip which is fitted with a 3A UK plug...
  9. 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...
  10. 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...
  11. 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?
  12. 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...
  13. M

    Commercial 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...
  14. 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...
  15. 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...
  16. 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...
  17. 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...
  18. 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...
  19. 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...
  20. 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...
  21. L

    Domestic 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...
  22. 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...
  23. adamfromayr

    Powder coat oven keeps tripping mains rcd all off a sudden?

    Hi Okay my powder coat oven i built was fine until today! I had it working kept on for more than an hour etc Pretty pleased with it all 2 x 2000w elements fitted and then wired into a 32a blue socket to the 42a isolator switch But today its started tripping i looked insid emy control panel...
  24. R

    Gas cooker - mains lead for ignition and clock

    I have just replaced my electric cooker for gas and now have the lead for the ignition and clock training along the worktop to the cooker isolater on the wall. I am capable of doing the following, but would like confirmation. I cannot just cut off the plug and wire directly into the dedicated...
  25. A

    Residual Current on Mains Tails - Installation Disconnected.

    I bought a new MFT1710 a couple of weeks ago and got a free clamp meter with it. (UNI-T UT210B, 200A Mini Clamp Meter). I finally got it out the box today and thought I'd try it on my mains tails to see if/how it's working. Surprisingly, with the consumer unit main-switch off, and the main...
  26. C

    Large 1940s mains upgrade

    upgrade to a 1940s ish installation mains busbar due to soldered joints failing on busbar isolator, 20 ish switched fuses of the same age on it. Large installation(hotel) that never closes and has alot of c1s on existing out of date certs but they want the mains upgrading 1st before the rest of...
  27. OttoF

    Domestic 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...
  28. J

    RS Solutions Mainslink 500m wireless mains to mains discount code

    Hi Guys, New to the forum, so first post. I need to purchase one of these Mainslink 500 m wireless jobies as communications cable between boiler and central heating has been cut and instead of re-running the cable, this seems to do the job. Has anyone used one of these Mainslink wireless...
  29. 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...
  30. 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.
  31. 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...
  32. 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?
  33. MarkRibbands

    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...
  34. simpson93

    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...
  35. Leesparkykent

    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...
  36. J

    Domestic 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...
  37. 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...
  38. 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...
  39. 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
  40. 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...
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