ring final

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  1. Marcus Vaughan

    Shaver Socket from a Ring Final

    Hi All, A customer has asked for a shaver socket to be installed in his bathroom. The only issue is that there is no lighting circuit available (loft conversion above and no access to the eaves). His idea was to come off a socket in a bedroom on the other side of a stud wall to the proposed...
  2. Sparksaflyin

    clever ways of ring final test without removing spur fronts??

    Morning fellas. I know from regular visits to this website that we have some rather intuitive Sparkie’s on here so I thought I’d join in the fun. I’ve got a rather basic question to start with but also where some of you can hopefully show your tips and tricks. Im currently working on a...
  3. KeenPensioner

    Can't figure ring final r1 + r2 divided by 4

    Hi...keen amateur here......don't crucify me for asking!! I understand Ohm's law and I understand the mechanics of measuring end to end on ring final and then joining incoming live to outgoing neutral etc, and I know that this configuration gives a figure of 8 (in fact can be straightened to...
  4. J

    Hand dryer off ring final

    HI everyone, Is it acceptable to wire a hand dryer from a ring final in to a 13 amp FCU. The ring main in question has 30MA RCD protection. Or, is it best to wire a new radial circuit for it?? There is a socket I can spur off that is easy to get to. Thanks
  5. Marcus Vaughan

    Power to an Outside Office - Spur from Ring Final?

    Hi All, Just looking for some reassurance on a job I've looked at today. My status is that I am trying to stay within the realms of 'Minor Works' until I get a bit of experience under my belt. Conscientious decision - but everywhere I go it seems that notifiable work is needed as well...
  6. Marcus Vaughan

    High(ish Zs and extending ring final question.

    Hi all. Love the forum by the way. I do have a question though... I have just visited a house (on a Sunday!). Customer is asking for additional sockets onto 32amp ring final. Circuit is 30mA RCD protected. Wiring is 2.5mm/1.5mm tinned copper. Thought I’d better do a live Zs test. Zs = 1.29...
  7. B

    Fault finding on ring final circuit

    Fault finding on ring final, is this the readings you would expect to achieve and are these the correct way to find them thanks
  8. 7

    Ring final testing question

    Testing my extensions wiring today and noticed cpc fails continuity. Howevery I have continuity from outward leg to main earthing bar in CU Any ideas how ?
  9. T

    R1 R2 socket test on Ring Final Circuit with megger leads

    So with megger leads they are not too happy in a kewtech socket tester so what do you do when you want to do this use kewtech leads on the megger? The megger leads clearly do not fit into the kewtech. Just use the plug lead?
    • The Ghost
    • Thread
    • circuit final leads megger ring ring final socket test
    • Replies: 16
    • Forum: UK Electrical Forum
  10. A

    R1+r2 reading and r1,r2 and rn on ring final

    Hi there Been stuck on this for a while. What is the maximum r1+r2 reading possible on a lighting circuit in a domestic property. With a type b 6amp breaker. Also if you guys could tell me about r1+r2 and rn Maximum readings for ring final. Thanks
  11. Marcus Vaughan

    High r1, rn, r2 etc on ring final.

    Hi All. I had a job which was going to be a 'quicky' fault finding and repairing a couple of sockets, then it came to the testing..... The consumer unit gave me no cause for alarm but was all labelled up wrong, so it turned out there were far more sockets and square meterage on this ring final...
  12. Amateur

    Ring Final Cable Routing Through Bungalow Loft

    Hi all. I know there is a DIY forum but im really after your expert knowledge rather than fellow DIY'ers/amateurs. With regards to replacing a section of a bedroom ring final circuit in a bungalow loft what is your preferred method of cable routing taking into account insulation and not being...
  13. J

    EICR code Split cpc on ring final circuit

    lost continuity on cpc of ring circuit, live and neutral fine all test fine. C2,C3,FI ?
  14. M

    Faulty MCB. Problem isolating ring final circuit at CU with MCB

    I am planning to move a socket outlet. The CU is largely unlabelled so don't know which 32 MCB to switch off. There are 2 x 32a MCB. All other mcbs are for lights (6a) and a dedicated immersion (16a). To isolate the circuit, I tried switching off the first of the two 32a mcb which isolated some...
    • maxeon
    • Thread
    • circuit faulty final isolating mcb problem ring ring final
    • Replies: 50
    • Forum: UK Electrical Forum
  15. Cadgey123

    Scrap the Ring final circuit

    After coming across countless faults in domestic premises regarding ring final circuits, I reckon they should scrap em... Gets frustrating when you go to check continuity and there is nothing between each leg. Or you get a call to check a burning smell from the C.U and once again a broken ring...
  16. R

    Low IR ring final circuit

    Testing a ring final circuit today. R1+R2 is fine, same as end to end r1 rn and r2. However IR test is coming back 1.87M ohm. I split the circuit and located a section (one side of the ring is clear >999). The customer doesn't want any walls or ceiling touched. As this is greater than 1M ohm...
  17. M

    Odd Fault on Ring Final

    Hi, Went to look at a job today where the customer reported the RCD intermittently tripping. I did an RCD Trip test and it failed to trip on x1, x5 or ramp test, the mechanical button tripped it. After a bit of further testing I discovered that the Kitchen RFC had an IR reading of 0.00 meg...
  18. haptism

    Ring final install method query

    Hope someone can help. When finding the cabling current capacity for a ring (wired in 2.5), would you use the data for 4mm in either/or table D5 of BYB or table 7.1 (11) in the OSG ? As the ring circuit is in effect 5mm ! Looking at the OSG ref methods; a 2.5 with ref method 101 says 17A...
  19. Soulsurfer

    Ring final & Radial circuits off one mcb ?

    Another straight forward job today has turned out to be a right mess once again so I thought I'd get some thoughts on the following before I start ! So an old MK LN59 board, feed to garage sockets on a single 2.5mm t&e from a 15A mcb and also spurred to feed a boiler on S plan, Next ring final...
  20. S

    Ring Final Circuit wired in 4 core SWA

    Hi Gents, Have an existing circuit at a warehouse where a single 4mm 4core SWA has been used as a Ring Final Circuit. Two cores are in connectors in the back of the socket outlets thus creating a ring. The SWA is therefore the sole means of earthing. There are No banjo's at the sockets and the...

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