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ring

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  1. 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...
  2. 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!
  3. 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...
  4. 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...
  5. 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...
  6. 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)...
  7. 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...
  8. 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...
  9. 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...
  10. 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
  11. 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?
  12. 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...
  13. 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...
  14. 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...
  15. 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...
  16. 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...
  17. D

    LV fault tripping HV ring main unit

    Hi all, I have been on a site repairing damage caused by travellers collecting copper for the last week. We have found and replaced cabling to get the site up and running. Power has been on for a few days but today the 11KV ring main unit tripped. This feeds a transformer attached to the main...
  18. C

    Can I spur a socket from an existing fused spur on a ring main?

    I'm sure this has been asked before, but I just want to confirm: Currently I have a spur leaving a socket in the bedroom, into a 13A Switched FCU and running up to power a double socket in the loft. I now want to locate a socket in the old boiler cupboard/airing cupboard to power a tumble...
  19. L

    Wiring Ring that has already been bypassed

    Hi folks, cautious DIYer, so just looking to confirm something. I got a wired Ring for our neighbors who have been without a doorbell at all. Seems the previous owners had had some sort of smart doorbell system and took it with them. When I got to the part with the chime box it looks like...
  20. J

    How would you meter (kwh) a ring final

    I have a customer that requested kwh meters on the socket circuits of an office lock he rents out,(rooms are rented separately). There are two 16amp radials which obviously are not an issue, But the ring mains 4 of are causing me a headache for obvious reasons! The question is how would you guys...

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