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ring main

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  1. Sboyuk

    Isolate ring main extension.

    Hi all, I hope you can help, I'd like to extend a ring main into the an outbuilding and be able to isolate it if required. I'll be using power tools and wanted about 4 double sockets in there so didn't want just a spur. I've attached an image, is this an acceptable way of doing it.? The...
  2. gm1984

    UK 16a oven on 20a fused spur from Kitchen ring main

    Hi, I've just bought a new built-in 3.4kw oven = 14.8A @ 230v. I'm getting 245v so actually 13.8A. Existing oven plugs into single socket fed from 20A DP switched fused spur. Ring is small (3 double sockets) with 4 x 20A DP switched fused spur single sockets (oven, washer/dryer, dishwasher...
  3. E

    call out to ring main fault

    Called out to rental property i carried out an EICR on in March; this year to look at loss of power. Narrowed it down to the down stairs ring main, done end to ends and ring in tact, insulation resistance failed, dropped every socket and inspected the wiring and socket fronts which 2 i had to...
  4. A

    Just removing the sheath on a ring main cable in a 3 terminal junction box.

    Over the years as a DIY-er I've used the old brown 30A circular junction boxes to add spurs to ring mains. I like them as they are strong, secure and visible. I've ALWAYS followed the rules on domestic electricity . Until earlier this year I've been able to check with a cousin who's a...
  5. T

    UK Is this ok to extend a ring main?

    I have had a new boiler fitted yesterday but the supply to the boiler has moved. The boiler is currently on a normal 3 pin plug plugged into a socket. What I want to do is have it wired into a fused spur. But in the future I want to run armoured cable to my shed off another fused spur on the...
  6. A

    Help tracing ring main in singles

    Hi I’m after some advice please. I’m on a job where there’s a junction box with ring main wired in singles through 50x50 galv trunking. I need to break into this ring for my additional sockets but need to identify which of the cables are incoming and outgoing ones!? I can’t follow cable in...
  7. T

    32 amp cooker switch on ring main?

    Hi everyone, so ive got a new oven to install this one is rated at 16 amps, old one was 13 amps on a plug and socket to ring main. My question is can i install a 32amp double pole switch on the ring main then feed 4mm flex to the oven? Is there anything in the regs that prevents this? Thanks for...
  8. D

    UK Commercial Ring Main

    Hi All Need some advice please I have a site meeting this week on an installation on a site that I am responsible for routine maintenace An installation was carried out by a company hired by our client without any input from the company I am employed by I am seeking advice from forum members...
  9. Kuba

    No reading N-N end to end on a ring main

    I’m doing some tests on my board at home in order to prepare it for an upgrade. It’s an old plastic GE board with no rcd protection. Doing continuity of ring final circuit on the main ring. When it comes to end to end tests at the consumer unit I’m getting no reading between neutrals. All good...
  10. OnlQQker

    So I Removed An Old Lath And Plaster Ceiling ...

    To find the electrician had spurred off the ring main in 2 x 2.5mm cables to 2 new sockets in bedroom above. This was done a year ago by an electrician from Mybuilder.com I doubt if it was tested but if it had of been would this of shown up in a test? Secondly is this a way of spurring off...
  11. H

    Is it advisable to feed a 1,600 Watt Quooker heater from a ring main spur?

    I will soon be installing a 1,600 Watt Quooker hot water heater for which a new 13A socket will be required. A ring main cable passes behind the kitchen cabinet that houses the sink and I have the choice of either inserting a single junction box into the ring and feeding the new socket via a...
  12. O

    3 phase ring main in a tool room. X6 16A sockets

    Hi, I have been tasked with installing 3 phase ring main in a tool room. X6 16A sockets. Each pice if kit will pull no more than 5A. Planning on using 4mm SWA cable protected by a 63A breaker. Tool room dimensions are 7M X 5M. Any problems with this?
  13. C

    Lighting circuit supplied from a 32A ring main socket.

    Hi guys, I am adding a lighting circuit to a Ring main 32 A. Can I just use a 6A MCB type B in a box on DIN rail to supply my lighting. I am using 1.5mm cable after the 6 A MCB. Thanks for your advice!
  14. D

    Doubling over conductors in ring circuit

    Was wondering. I haven't been to college for about 3 or 4 years now and I can't seem to remember what they said about doubling over conductors in a ring circuit. So in a ring circuit using 2.5mm twin and earth cable, is it recommended that you double over the conductors before terminating them...
  15. S

    New Summer house wiring installation - dedicated Circuit or break into existing ring main?

    Hi all, Planning on wiring my neighbour's summer house which will be 15 metres away from the end of the house (20-25 metres total distance from the supply CU under the stairs). Need some advice on which option would be the most SAFE not just the quickest, cheapest method etc. If it costs more...
  16. D

    What cable / conduit for a spur from the ring main?

    Hi everyone, I’m about to build some cupboards, (tomorrow!) but need to ensure that a suitable cable is left behind them and threaded through the adjacent wall for a socket that I want fitted in the future - on the other side of that wall. (Work is happening in many stages). I’m not attempting...
  17. 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...
  18. 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...
  19. J

    Ring main.

    Question I have is, is it ok to have x2 ring main circuits on one 32amp type B MCB?? If so does this meet the current regs. TIA.
  20. OnlQQker

    Another question about cables (6.0mm & 2.5)

    Around 25 years ago I went to Spain with my girlfriend and stayed in an apartment, as she was unpacking the suitcase I decided to take the consumer unit face plate off and have a look. I was surprised to find what looked like 6.0mm cooker cable forming a ring, when I removed the faceplate from a...

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