mains

  1. C

    IDENTIFY THE CAPACITY OF MY MAINS SUPPLY CUT-OUT FUSE (PLUS...)

    About 15 years ago, after having had a modern consumer unit fitted, and prompted by our electrician, I asked my then energy supplier (Tonik) if our 1968 60 Amp cut-out fuse could be upgraded to 100 Amps, and what additional work/expense would be needed. I did not know that my request had gone...
  2. S

    SPD for TPN 100a sub mains

    Hi Guys, Looking for some options to provide surge protection to a 100a TPN sub main to be wired 60m from the origin Im currently looking at installing a 4 way TPN mccb panel board with spd at the origin but it looks as if its going to cost the best part of a grand This is obviously a far...
  3. Scott smit

    UK Running a couple new sockets from mains

    Hi everyone Just looking for a little advise on if my plan to run this spur is okay I’ve drawn a diagram in hopes to make my expiation simpler The MS square is the main socket which has not been tampered with The F is a 13 amp fuse spur And the S are the additional sockets which I plan to...
  4. N

    convert 12v gu5.1 to mains gu10.

    convert 12v gu5.1 to mains gu10. but confused why this transformer has two live wires? can someone explain.Do I need a driver or I can directly attach GU10 holder to the mains? and what should be done with second live wires?
  5. C

    UK Generator connection to mains supply questions

    I want to use a manual change over switch to safely connect a 21kVA single phase tractor PTO powered generator to my mains supply in case of power outages. The cable run from the generator to the outside mains incoming box will be about 40 meters. I intend to use 16mm SWA for that run. The...
  6. A

    Solar and Mains metering

    I have solar which sends excess watts to the mains. I would like a clip on meter that would show what power I am exporting or importing,
  7. Rockingit

    Mains adaptor - to fuse or not?

    Here's a Sunday puzzler for you all..... I've a large rental stock of properly made up mains adaptors for use in Europe and elsewhere - so typically something like a Schuko >1m 3c H05 / H07 1.5mm flex > twin 13A duraplug trailing socket, variants for other countries, USA and so on. The other...
  8. T

    What is maximum current of the mains?

    Hi, What is th emaximum current draw allowable from the mains for... UK domestic single phase Light industrial single phase Light industrial 3 phase If there are different levels, then please advise. Basically i suppose what i am asking is what current does the wiring have to be rated for...
  9. K

    English Electric Mains shut down/start up procedure

    Hi everyone, my husband has turned up on a job with a very old mains that he will need to shut down at some stage. Does anyone know the procedure for shutting down/re starting this type of mains? Photos attached. Apologies if this is the wrong forum and thanks for reading!
  10. meketrex

    How to wire mains power to an SPDT (maintained) switch

    I currently have a Single Pole Double Throw switch with 5 pins (as shown below) which I want to wire up to UK mains: ┌─────┐ │ NC │ └─────┘ ┌─────┐ ┌─────┐ ┌─────┐ │ - │ │ NO │ │ + │ └─────┘ └─────┘ └─────┘ ┌─────┐ │ COM │ └─────┘...
  11. V

    Multiple sub mains, how would you do it ?

    This is a question with probably so many answers and solutions, but I wondered how people would do it. I have a clients house which already has one submain on a 40A MCB to a Garage with a 20A RCBO radial and a 6A RCBO lighting circuit + a spare 32A RCBO. Selectivity not an issue. They need a...
  12. Carolina

    Finding transformer VA rating

    Hello everyone. I'm in training but we haven't seen transformers or how they work yet. I have a transformer here I'm trying to figure out. There are no labels or inscriptions on it. Primary side has 3 wires: black, blue (AC in), yellow (AC out?) and Sec has red and blue. Labeled USA 18AWG so a...
  13. C

    Neighbor says they need access to my mains box to install their smart meter?

    Hi Everyone, Hope you’re all well! I’m wondering if anyone is able to shed some light on a situation I’m having with my neighbour. I received a text last night saying the below: “ Hi , hope you’re both well. My flat came with old key meters for gas and electric. When I first moved in, I...
  14. timhoward

    Anderson connector for 230v supply?

    I thought I took a photo earlier but seemingly not. Someone's fitted a joint box to move a consumer unit. It's a refreshingly neat job. Din rail, wagos DIN connectors for final circuits etc. It's even fully labelled up. One thing is a first for me. Inside the enclosure, an Anderson 2 pin plug...
  15. pirate

    Info please on a mains powered smoke alarm

    Not come across this before, so would like some help, please. I went to install smokes and heat alarm (to new Scottish regs) in a fairly modern flat last week. The flat is on the top floor of three. Noted that the flat had one smoke in the hall. Assessed minimum requirement as smoke in hall...
  16. Midwest

    H07RN-F FLEX MAINS suitability

    At work in our main kitchen, the 6kW (26A sp) water packed up. The restaurant staff were in turmoil, as they had no hot water to make the tea. Luckily we had a new spare one lying around. The old one was fed by a 32A supply, 4mm 6242B (LSOH) cable 32A RCBO. From the rotary isolator, the...
  17. D

    Sub mains supply wiring

    We currently have a property being split into 2 No. flats. The local electricity board have put the 2 No. meters and consumer isolators external at ground floor level within a housing. My question is can we run the upstairs flat sub mains supply (SWA) through the ground floor flat to the first...
  18. S

    Back up generator to mains?

    What is the best way to do a back up generator installation? I have a guy who wants a 3KW generator (only to power some lights and a pump) but never done one of these installs before, I'm assuming commando socket outside wired to changeover switch?? Thanks
  19. J

    Fitting sockets in loft

    Afternoon:) Could anyone tell me the best way to get socket mains into the loft , would it be taking the ring main from the bedroom below? Thanks
  20. D

    3 Phase power keeps on tripping

    Hi Guys any advice on this one will be a major help. Was called out to a loss of power turned up expecting a breaker down as usual but not the case. so here goes the problem- an apartment block with 315 amp incoming fuses feeding 400 amp mccb set to trip at 220. This in turn feeds a rising...

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