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ring main

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  1. W

    Extending Cables for Ring Main

    Hi, My sockets are currently situated on the skirting board and I'm wanting them higher so that they sit in the wall. My plan was to pull back the two cables, join them in a JB (under floorboards considered inaccessible??) and then pull two new cables up from that JB to the higher positioned...
  2. Ian B

    Using a 6mm T&E to feed a Ring Main

    I'd appreciate peoples views on this, including compliance or otherwise with the regs. I've come across a 1-bed flat where one ring main serves the small kitchen, and boiler & security alarm. The unusual thing is that the ends of the ring are then connected to a single 6mm T&E that runs back to...
  3. T

    Ring main extension

    Hi I would appreciate some advice on a ring main circuit in a domestic property. My single story house has a 4mm ring main circuit for the socket outlets. At some stage this circuit has been extended to include the garage and a utility room. I notice that the extension has been done in 4mm+1.5...
  4. W

    Splitting ring main

    Hi all, I have a cpc continuity fault on a ring main which only consists of 7 sockets and 2 FCU. I have split the circuit and found that it is one of the legs coming from the C.U to the first socket. Normally I would convert to 2 radials but this is not possible and also its concrete floor...
  5. W

    exyending ring main

    i am about to build a partition wall in my daughters house to split one big bedroom into 2 for my grandchildren. Iam going to install 2 double sockets on each side of the new wall. There is one double socket in the bedroom at present and my intent is to split the ring under this socket by...
  6. A

    Fault in circuit - 3 bed house sockets are all on 1 ring main...?

    I have a friend who had some problems with a tripping RCBO on their ring main, the whole house is only wired on 1 ring main which failed on an insulation resistance test. (0.001Mohm X ) An electrician took the circuit off the RCBO and left it on a MCB to stop the sockets disconnecting. I...
  7. T

    Adding a light switch on a ring main?

    A friend of mine is fitting a new kitchen, he has asked if he can fit a socket above the cupboards to supply the LED lights he wants to fit below the wall cupboards. he also wants to be able to control the lights using a std light switch, so he has one switch to control the main room light and...
  8. M

    Kitchen Zone Ring Main

    Hi all, I would like to check something with you. My sister has purchased a 1980’s two bedroom flat in a residential development. There is a single ring main. This was modified around the year 2000 when a new kitchen was installed. 3 additional 2 gang socket outlets and a couple of fuseds pur...
  9. F

    ring main

    hi guys yet another head scratcher i am doing a board change and have 3 cables for a ring main LIVE LIVE 0.45 N+N 0.45 CPC 0.68 other cable also reads on the end to end 0.12 0.15 and 0.23 cpc any ideas as to what this could be expected that another circuit had been doubled up in fuse however...
  10. R

    continuity on ring main

    Hi. be nice for some feed back on this. I'm testing a ring main for an eicr. I know that the cpc reading should be around the 1.6 times higher than the live conductors but I'm getting 0.66 on live, 0.67 on neutral and 0.61 on cpc. I'm wondering, if the cpc are connected through the metal k.o box...
  11. M

    Cable size from ring main to spur for underfloor heating

    Hi all new on here and looking for advice. I ran wiring for an extension and took a 13a spur from the ring main using 2.5mm2 t&e for the underfloor heating controller. The homeowner has got someone in to lay the the heating mat kit 20sqm of it and when the tiler connected to thermostat he said 1...
  12. M

    Ring main calculation help

    Hi all I have 2 quick questions regarding domestic ring main socket circuit calculations im hoping i could get help with. 1) regards calculating Itfrom table 4D5 in the regs it states that in order to use 2.5mm conductors that it should have a max value of 27A (ref method C), im unsure how to...
  13. T

    New ring main for outside workshop

    Hi guys, My first post on this forum, I am a regular at the Tiler forum. I was hoping you guys may be able to give me an idea as to what I should expect to pay to have a dedicated ring main installed to supply my workshop outside. The workshop is approx 500mm away from external wall and is no...
  14. jaydee81

    Storage heaters on ring main

    Came across three storage heaters wired on a ring main today two 2.7 kw and one 0.8kw all individual heaters are fed through sw fuse spurs total load on the circuit is about 27 amps anyone ever come across this before suggested to the customer making it into two radials a 2.7 and 0.8 on one and...
  15. 7

    help needed ring main fault

    hello there your expertise please :D Basically recieved a job from a client that rents out propertys the client has had the council complete a EICR and they have found x2 ring mains have the following faults: circuit 1:no continuity lives (readings-RN=1.33) circuit 2: no continuity neutral...
  16. D

    Intermittent Ring Main Fault due to Bad Weather

    I have an intermittent tripping fault on a 30amp ring main circuit (old Wylex board with B-Breakers - No RCD) located in single storey extension (no roof access) caused by the bad rain within the last 24 hours. The tripping can be sometimes instant, but other times it can last as long as a...
  17. B

    Wago connectors in a ring main

    Some Wago connectors are rated at 24 amps and take cable up to 2.5mm. Would you use them on a ring main circuit? My concern is that if one leg of the ring went open circuit, the wago would be then used on a radial circuit protected by a 32a mcb. Bul
  18. S

    Extending a ring main outside.

    Ok so firstly I am not a DIY'er but would like to get some info in regards to the following project. I have a new house (2009) so the main board has rcd protection and the wiring would conform to the regs in that year I am not certain about the month though. I need to get power to the garage...
  19. B

    Puzzling IR & Continuity results on an old Ring Main

    Hi, I'm relatively new to this forum and have not long since qualified. As one of my first job, I recently installed a new CU to feed a large shed. I got the clients provider out to install a service switch so I could safely tail up the new CU. Whilst the engineer was out he plugged his tester...
  20. A

    BS 3036 fuses on Ring Main.

    Hi, I am looking for a bit of advice on the Regs relating to BS 3036 fuses on a ring main, as I do not agree with the comments made on a PIR. The defect states that the conductors are too small for the protective device due to the 0.725 factor. The circuit is wired in 2.5mm2 singles in...

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