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ring final

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  1. 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 ?
  2. 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?
  3. 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
  4. 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...
  5. 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...
  6. 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 ?
  7. 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...
  8. 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...
  9. 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...
  10. 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...
  11. 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...
  12. 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...
  13. 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...
  14. 247 handyman

    How to check if a fuse feeds a ring final or 2 radial circuit

    Hi guys. I need to check if I have a ring or 2 radial running from a fuse. I have an old wylex fuse box in which someone has put a blue 15amp fuse in a red 30amp carrier. If I disconnect the 2 cables and check for continuity of the 2 lines then the 2 neutrals will this tell me if I have a ring...
  15. D

    How does ring final circuit work

    Hello all I used to believe that the power of circuit is running from live to neutral,then go back to the distributor.But when I see ring final circuit,I get confused...I know the power goes from both side of live cable,then it goes back to the circuit breaker? Sorry about my poor...
  16. G

    Spur from Ring Final Circuit

    My last thread was taken down due to copyright reasons, I think it was because I scanned a page from the wiring regs and posted it. Can anyone tell me if this circuit design conforms to regs?
  17. Lee Gold

    Question regarding ring final circuit

    Started a level 1, completed practical assessment, was given test paper and tutor told me to answer these questions, bearing in mind I haven't had any theory practice or anything given to me on this information before hand. 1. Give TWO health and safety regulations related to assembling a 13amp...
  18. S

    Ring Final Tests

    testing a ring final today end to end test L 0.24 N 0.24 CPC 0.37 figure of 8 L1 -CPC 2 L2 - CPC 1 0.25 L1 - N 2 L2 - N 1 no reading IR >999 cant figure out why open circuit on figure of 8 any answers?
  19. kingeri

    Ring final with 4mm legs

    So I have been working on a four storey house, in which the wiring is pretty sound, the sparks who did the last rewire (approx 2004) seems to have loved 4mm T+E, all the sockets are on 4mm radials, with either 16, 20 or 32 amp breakers. The exception is the very top floor sockets, which he did...
  20. polo1

    Interconnected ring final circuits.

    My head's wasted having spent two hours trying to trace an interconnection between two ring final circuits. I started nice and methodical and went downhill from there:bigcry::bigcry:....under pressure to get to the next job, I gave up, but am back on Thursday to nail it on the head. So, how...

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