ring circuit

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  1. 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...
    • David345
    • Thread
    • cable circuit conductors double over doubling doubling over ring ring circuit ring main socket sockets teminating terminal termination twin & earth twin and earth wiring
    • Replies: 14
    • Forum: UK Electrical Forum
  2. E

    What is the correct way to spur off a ceiling rose on a normal ring circuit?

    Hi, I have a standard single ceiling light that I wish to convert to a set of three light fittings, physically right next to each other and controlled by the same switch. What is the correct (and preferably easiest) way to connect this up? Kind wishes - Patrick
    • EasyGoingPat
    • Thread
    • ceiling circuit correct lighting normal ring ring circuit rose spur
    • Replies: 16
    • Forum: Lighting Forum
  3. Vortigern

    Burying 2.5mm ring circuit cable under concrete floor in flexi conduit

    What is your view about such an installation technique? Asked to finish extension wiring and the installer has snaked wire all over the floor in white flexi. They intend to put an island in and this could easily lead to damaged cables. The other wiring for lights etc. is abysmal like a massive...
  4. D

    UK Are blue through crimps allowed on ring circuit.

    I'm a trainee electrician and I was working with a qualified electrician extending a 32A ring circuit and we were using 2.5mm single conductors (CPC was 2.5mm aswell) going through PVC conduit and then going through steel trucking. And to connect the old ring conductors with the new extended...
    • David345
    • Thread
    • 18th allowed blue crimps circuit conduit connect connecting crimps illegal legal pvc regs ring ring circuit steel trunking through trunking
    • Replies: 31
    • Forum: UK Electrical Forum
  5. Scolmore

    The Ring is dead, long live the Radial!⚡

    The Ring is dead, long live the Radial!⚡ When wiring socket outlets do you: 1. Use ring final circuits 2. Use radial circuits
    • Scolmore
    • Thread
    • dead installation live long radial radial circuit ring ring circuit socket socket outlet wiring
    • Replies: 192
    • Forum: UK Electrical Forum
  6. Vortigern

    A new type of ring circuit???

    About to embark on wiring an extension and cursory examination threw up the above. Have not as yet poked inside. Anyone seen this arrangement before? Can I believe what my eyes seem to be saying to me?
  7. B

    Adding a 'spur' to a ring circuit.

    Hello All Possibly a silly question - can I add a 'spur' to a ring circuit at it's MCB in the CU, rather than cutting into the ring itself? I want to do this to add a power line adaptor to extend wifi coverage. Many thanks. Billio
  8. K

    Can i run led under cabinet lights off a ring circuit spur?

    Hi I'm fitting a new kitchen and as the light circuit isn't that easy to get to I want to fit a spur off 2 different sockets. My thoughts were to run a spur from each socket and fit a fused switch to feed low voltage led under cabinet lighting. 3 leds under each side. would this be acceptable or...
  9. T

    How would you do earth continuity on ring circuit in two core MICC cable?

    How would you do earth continuity on ring circuit in two core MICC cable?
  10. L

    Guide to make test board... similar to colleges powered by ring circuit

    Afternoon chaps, is there a guide anywhere on this forum to make a test board similar to what you would use in college? I need to re-train myself, get some practice in testing circuits. Any appreciated. Thanks.
  11. marconi

    MARCONI'S FINAL RING CIRCUIT LIVE CONDUCTOR BREAK DETECTOR IDEA

    Over the last few days I have been stuck indoors because of the rainy weather. To pass the time I cobbled together my simple idea for a FRC live conductor break detector, ie break in L or N. I also have a working demonstrator for detecting a break in the cpc but I will/may post that another...
  12. KeenPensioner

    De-rating a ring circuit

    Hi, I'm not an electrician but have worked as a mate and I'm studying in my own time - I know my limitations. I watch a lot of videos (John Ward and others) and have come across an issue I don't understand. An 80A 30mA RCCD has 4 Type B 32A MCBs hanging off it and the sparky () talks about...
  13. A

    Unable to separate wires on ring circuit

    Hi folks, I'm in the process of adding some more sockets into my "Socket" ring circuit. My plan was to open up the existing socket, cut 1 twin and earth higher up and add a socket there, leave the other twin and earth where it is then do a small ring of 4 sockets, starting at the existing socket...
  14. Z

    Question regarding signing off 32a ring circuit with broken CPC ring continuity

    I installed a kitchen ring recently. Went back to test after the builders had finished and found that the CPC is broken somewhere inaccessible, everything else tests normal. I’ve got continuity on live conductors, and even with the broken CPC, each socket is connected to the CPC and tests with...
    • ZEDEZ
    • Thread
    • 32a broken circuit continuity cpc question regarding ring ring circuit signing
    • Replies: 46
    • Forum: UK Electrical Forum
  15. J

    RCD tripping issue on ring circuit

    First time poster go easy on me. Got a call out to a job today, got told the RCD was tripping. Even when no appliances plugged in. And so it was intermittently about every 20 mins. Only two ring circuits on the RCD, on one of the rings im getting continuity across line and netural on both legs...
  16. V

    ring circuit for a submain?

    trying to find answers in the reg book, but is there anything to say you can't install say a larger ring circuit for a sub main? to reduce volt drop / cable size etc. Normally you would obviously install a large enough cable, but would this be acceptable , whats our thoughts?
  17. Y

    Ring circuit cable length

    Hi all I have a ring circuit with 13 sockets. 2.5 mm 3 core cable. My floor area is 60 sqm My question is what is the maximum wire length for a single ring circuit? I used 92 meters of wire for the whole ring circuit. Also I only had a c type rcbo available at my local electrician. Will this...
  18. L

    Extending ring circuit

    Morning all, i plan on extending ring circuit, installing additional 13A socket in the room. Plan of action was to install black 30A junction box under floorboard to one of the legs. However after some research on this forum, junction box must be easily accessible and not suitable for the job...
  19. N

    Ring circuit fault issue

    Hi. Had a guy in yesterday to look at the tumble dryer and he told my wife he couldn’t work on it because the ring circuit of the house had a fault showing on his meter of over 2 ohms. Wasn’t quite sure what this meant but I’m taking it as neutral to earth leakage??? I don’t really have any...
  20. A

    Calculating Cable Size for Ring Circuit

    Hi All, I'm needing to calculate the cable size for a long ring main. Cable type will be SWA/LSF. The ring is feeding 5no Twin Sockets, on a 32A Type B RCBO, kicker is the length out and back is 300m. Using cable calculation tools can i half the length, 150m, half the current, 16A and allow 20%...

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