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ring

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  1. R

    explanation of using 2.5mm2 T+E for a spur from a ring 32A (ring)

    Why can we use 2.5mm2 for a spur from either the CB or a point on the ring ? Why does this not have to be 4mm2 when using a 32A breaker ?
  2. S

    3183yag cable 1.5mm flexible for lighting ring

    Hello all, I think I might have done gone and ducked things up. We got a timer frame single story extension put on( 35sqm) For the Lighting circuit i used 3183yag multi strand flexible 1.5mm 3 core cable. Should I have used single strand?
  3. G

    Moving a ring main socket further along a wall

    Hi all, I'm planning to remove a stud wall seperating my dining room and kitchen. On the dining room side of the stud wall, there is a double socket which I want to move about 2 feet approximately along, and onto the back wall. The wires will be coming down from the ceiling as they all do on...
  4. T

    Comsumer unit - upstairs/downstairs ring mains

    Hello, I bought a new build and noticed the upstairs MCB is controlling some sockets on the opposite floor, so if I flick the upstairs MCB it's also switching off a socket downstairs (I think it's a spur) in addition to all the ones upstairs Is there anything within 7671 that states this is...
  5. B

    Shower on 4mm ring final circuit.

    Hi, I've got a customer who wants a 10.5 kW shower installed in his bathroom. As it happens he already has two unused 4mm T&E cables run from the CU cupboard to the loft. I know it's unconventional but is there any reason I can't use these cables to make a dedicated RFC for just the shower...
  6. 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!
  7. T

    Car charger Direct install or via ring mains?

    Just a question as I’m waiting for a new electric car to be delivered and they have included installation offer when it arrives free of charge. However, I’m a bit concerned as to whether they will need to get to the main switchboard which is all the way round the house which is going to be...
  8. D

    Ring Video Doorbell Wired Installation Setup 3rd Party Accessories

    Hi, So I ended up with a Ring video wired doorbell instead of a Byron video wired doorbell as B&Q were out of stock (had ordered online) and they gave the Ring one at no extra cost (nice of them). Not what I was after but will have to make and do. I don't really want to fork out and buy the...
  9. D

    Time Bell Cable Potential Usage Doorbell/Security Camera (USB)

    Hi, I purchased a Time twin strand bell cable with a rating of 12-30V, 2A, low voltage, not for mains use. I wish to use this for installing our new Ring wired doorbell. We don't have an existing doorbell wired setup so it would need to conform to a DIN rail transformer specification of 24Vdc...
  10. S

    Generation 2 Ring doorbell install

    Amateur with no experience here - bought a Ring doorbell in the sale assuming I would just switch it out for my doorbell by removing and reattaching - however concerned it may be a bit more too it# Current button goes to a chime housing a transformer (DETA C3500 A/C 220-240 volts 50Hz)...
  11. J

    Ring wired - Help bypass Underdome Bell? Friedland 743 transforma

    Hi, I bought a Ring wired bell thinking, easy, just replace the current doorbell. Now I'm hunting down how to bypass the chime but am unsure of how given this underdome bell system? Please see photos, Friedland 743 transforma is separate with chime on wall, I can't see anything else and do not...
  12. R

    To many spurs on ring circuit

    Evening all, Been to a job on Fri where the customer had a condition report completed. Two of the remedial identified was that there were too many spurs off spurs on the upstairs and downstairs circuit. There’s are separate circuits both rings which test okay etc. I looked at upstairs one...
  13. V

    Unusual Ring Final Tests

    After fixing a few CPC related issues on a ring final I got the following results L-L = 0.47 N-N = 0.47 CPC-CPC = 0.69 R1+R2 Tested at 0.31 R1+Rn Tested at 0.25 All looks good, until that is I realised that the CPC-CPC is actually not quite right. It should be 0.78 (0.47 x 1.67 for a 2.5/1.5...
  14. cliffed

    Zs on ring main high

    NICEIC visit the other day… pulled up on length of RM circuit …. Zs 1.30 ohms… RCBO 32amp B type…thoughts on this
  15. B

    Ring or radial in bungalow

    I’m rewiring a bungalow and the owner has asked for a radial for all sockets except the kitchen. But there will be a separate washer and dryer in the circuit. Will a 20A radial be enough?
  16. J

    UK Kitchen Wiring-New Build ring vs radial

    HI All, I am building a new house (self build) and have my part P so am running the cabling. My reading of the regs says that any appliance of over 2KW should not be supplied by a ring main and should have a 4mm radial. (BS 1363) My questions are really around this- - It seems all of my...
  17. B

    Have the rules for ring mains changed over the years?

    I am sure when I qualified for the 16 edition we spoke about how to treat a ring main. I know the majority of the time we just learned how to read the book and how to find needed headings but I am sure we also spoke about ring mains. If a socket has two cables coming into the back box then it is...
  18. J

    3rd ring from garage

    I have supply in the garage with its own small consumer unit with a 63a breaker and 1 B6 and 1 B16 breakers. The garage has a ring of sockets coming from the B16 breaker. An electrician has added a wire into the 16amp breaker to a second shed. So that is 2 rings from one B16 breaker. I now have...
  19. S

    Loading on an existing Kitchen and living room 32amp ring final

    Bit of advise if anyone has time.. I have a customer who brought a new kitchen from wrens. Customer has had the route to the kitsch redecorated 6months ago. I’ve found a route which means 25meter going externally and I quoted to supply new 6mm and ring circuit. They are supplying Oven (13amp...
  20. G

    From concealed ring to surface fixed

    Hi all, question on extending an existing ring main onto the surface and then re-joining back to in-wall. Is there a ‘correct way’ to do this, as I don’t see any sockets other than spurs with flex outlets that allow you to nicely exit a double, continue surface mount for a few sockets (behind...

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