ring circuit

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  1. L

    How do I know if I've got a ring circuit or a radial circuit?

    Hi! Is there any way to know if I have a ring or a radial circuit in a division of the house? Thanks!
  2. L

    How to install a junction on ring circuit spur?

    Hi everyone, I've got an electrical ring circuit that looks somewhat like the drawing below, where the blue sockets are part of the main ring and the red socket is a spur. I need to create a new socket, but the closest socket and the only one I have easy access to is the spur. Is there any...
  3. S

    Contactor wiring, break ring circuit through a stop button

    Hi guys , I have to break a ring circuit through a contactor with an emergency stop button .. just want to double check my wiring in the diagram is correct .. haven’t done much of this sort of work so any feedback is appreciated.
  4. CopiamElectrical

    Ring circuit fault, High RN

    Hey there, Sorry I’ve just joined up. I’m a qualified electrician/Electrical engineer. Recently sat my 2391-52. My question is I had a fault which I couldn’t find or rectify during a periodic test that I carried out yesterday (tenant property) occupied. Circuit: Ground Floor Socket 32A...
  5. I

    Cable Calculations on Ring Circuit

    Hello, I am a trainee electrician just starting to get into doing cable calculations. I understand them when it comes to a radial circuit but get lost when it comes to ring circuits. If I take my Ib and In as being 32A for example how would I go about selecting a cable size and proving it is...
  6. T

    Temporary Hybrid/Lollipop Circuit

    I'm in the process of renovating a house. As I go through room by room I am removing old plaster and as the cables are exposed at this point I figured I may as well get the wiring updated as I go. The ring main (~6 sockets) is currently fed from 2.5mm T+ E. Eventually I would like to have the...
  7. S

    Put a ring circuit in a garage.

    Hi there. I'm a DIYer. Just bought a house with a double garage that has just one socket in it; and it seems to be just a single spur direct from the CU. I want to put in more power outlets; and was wondering whether it's permissible to remove the existing socket, put in a 32a fuse/breaker, and...
  8. Neptune

    Continuity test after Ring Circuit

    After completing a new RFC or modifying an existing one, I will always test continuity across all 3 conductors at the Consumer unit. I use the continuity function on my Fluke 2 pole tester to do this. This is done whilst the circuit is dead. Prior to this, I am very diligent with the conductors...
  9. The apprentice

    Fault on ring circuit (weird)

    Hi there was called to a job with fault finding on a ring 120v on one socket 190 on the other the guy had been doing some work in the kitchen by removing a socket and joint it straight through now it leaves the board as a radial so I had taken one socket of getting voltage on the earth and when...
  10. notsobrightspark

    ring circuit reading?

    hi guys , just testing a kitchen ring circuit. r1 1.6 ohms rn 1.6 ohms r2 2.1 ohms the kitchen is a 2.5mm ring but has spurs in 4mm cable and one small leg in 4mm (must be what was left on the van ) upon checking a figure of 8 test , im getting 1.6ohms when i was expecting 0.8ohms have i...
  11. Calebp43

    Why ring circuit on 32amp??

    So the CCC of 2.5mm is 27 amps clipped direct. So a ring would be 54amps altogether, yet is put on a 32 amp breaker. I understand that the legs could be balanced.. bit if that's the case then why draw the line at 32, why not 40? Let's say I'm at a job and there 32 amp breaker is overloaded on...
  12. W

    EICR ring circuit question

    Doing an EICR and was looking for some advice, testing the socket circuit, it’s a ring circuit. 3 sockets in the living room area, opened 2 up and they both had one cable at it (great). Opened the 3rd and it had 4, so obviously the other 2 sockets are fed from here. Now I know you are allowed to...
  13. msteel9999

    UK Spur blowing RCD

    I'm trying to connect a spur to an existing outlet but when I use an appliance on the spur socket the rcd trips. I've tested the rcd and it has 19 amps capacity which is as expected. I've also tried connecting to a different socket on the same rcd and it also trips. What I don't understand is...
  14. A

    Adding an additional socket in ring circuit question

    Hi, I am a DIY person (ie. not a qualified electrician) so I am sure this is a basic question but please bear with me. I am looking to add a socket to the garage. I was looking at various online resources on how to wire this up and came across many videos and articles that said that if you...
  15. C

    Open ends on ring circuit help

    Can someone explain what can trigger that issue. Open ends earth to earth on ring circuit? Thanks
  16. H

    Ring circuit for all the sockets ?

    Hi there, Hoping for some advice if possible.. Just moved into a property and have gone over the wiring that has been tested and inspected in the last 18months The house is a fairly small 2 bed (around 53m2 over 2 floors) What surprised me the most is that at the consumer unit there are...
  17. mmi2001

    Breaking a lighting ring circuit in the middle

    We have a lighting circuit on a dimmer and with 5A round pin sockets for standard lamps and table lamps (ie: no ceiling roses) After about 7 years of reliable use it started to take our trip out (and the dimmer!) Mostly intermittent but almost instantaneous now. Fault-finding showed that if...
  18. R

    Extension of ring final circuit

    Hi there all, I have a property and I have noticed the following wiring (please see below) in one of the rooms in the house. It looks like the ring circuit has been extended. A single 2.5mm Twin + Earth cable (in red) is providing power from the consumer unit which feeds a chain of electrical...
  19. D

    Ring circuit readings

    Hi all I am about 2 years retired after being NICEIC registered for over 20 years. An old customer just a little concerned about an EICR just been done on her property by someone else now with lots of N/A everywhere main one being no end to end readings (R1R2) entered for the ring circuits I...
  20. S

    Adding socket

    Hello Sparkies I want to add another socket in the through lounge. I currently have two sockets (one in each room) and want to add a third but not sure how to. Lifting the floor boards revealed a 3 way junction box from CU to two sockets. Is it ok to wire from an existing socket to the new...

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