final

  1. J

    Adding RCD Protection to a ring final

    If I add a rcd to a ring final at the fuse board because im adding extra sockets and moving some other I need to test all old sockets as well right ?? the reason I ask is ive quoted for the job and was discussing with the customer yesterday what I had to do, I saw her tonight at the pub and she...
    • Jimmyb
    • Thread
    • adding circuit exactly final protection rcd ring ring final sockets
    • Replies: 9
    • Forum: UK Electrical Forum
  2. E

    Volt Drop

    Hi all, Just wanting to clarify regarding volt drop. Client is looking to add lighting to garden, to be supplied from 13a FCU, load on FCU will be less than 1A due to LED lighting. The FCU will be an addition to a final ring circuit which serves dining room and lounge, protected by 32A MCB...
  3. S

    Ring Final Circuit

    I have a query about the Standard A1 Ring Circuit. It is my understanding that a 2.5mm2 cable is sufficient, this is because the current carrying capacity in a worse case scenario is 20A and because they are run in parallel this gives a total current carrying capacity of 40A and so a 32A MCB...
  4. G

    Ring Final Circuits ... each leg into a separate MCB!

    I was inspecting the electrical installation in a large 5-bed late Victorian or early Edwardian property that I am considering buying in Scotland when I came across the 'socket circuits'; 3 32A MCBs so I expected 3 Ring Final Circuits. Each MCB only had one wire so adjust assumptions - they...
  5. J

    final 2391

    Just found out I've passed my 2391 exam,well made up.
  6. A

    Ring Final Circuit Problem

    Hi all hope you can help had a spur to fit on an old ring final circuit today that is made up of the old 3092 and old twin and earth were it has been extended in the past the readings i got end to end L 0.16 N 0.16 E 0.32 added together 0.16+0.32/4 = 0.12 but when i carried out a figure of 8 i...
  7. S

    Isolation of Ring Final Circuit

    Here's one for you. In a foster home for naughty boys the client has a requirement to be able to "remove privileges" of TVs/PCs etc when necessary. They seek a means of doing this without having to get staff to use the Distribution Board. Would a DP switch of the correct capacity be the best...
  8. S

    Continuity of Final Ring circuit

    Hello chaps and chapettes, Continuity of final ring circuit I measured: L-L = 1.45 E-E = 0.8 but measuring N-N I got 108.8....???!!!!!! Any ideas..? Or are those readings good in my limited experience and consequently I'm an idiot. A out of date Cadbury's cream egg for the most sarcastic...
  9. keniff

    Voltage drop and 3phase

    I'm having a bit of a blonde moment, I'm trying to work out the volt drop on a 3 phase Submain, the Submain is to be supplying a 3phase board loaded with rcbo's all single phase loading, I can't for the life of me remember how to do it I think it's working out the single phase vd and multiplying...
    • keniff
    • Thread
    • 3phase cable final having neutral phase voltage voltage drop volts
    • Replies: 12
    • Forum: UK Electrical Forum
  10. M

    ELECSA Certification Scheme Ring final continuity readings and Elecsa assessment looming...

    Hi I have my Elecsa assessment in under two weeks and ive never felt so stressed in my life! I've changed my C.U. to use as my job as i thought it would be easier but im really struggling with the testing especially on the downstairs ring final sockets. Ive done end to ends and got Line 0.61ohms...
  11. P

    RCD Spurious Trips

    Hi Guys, now here's a strange fault. I have recently installed a new split MK consumer unit. All circuits have high IR and the RCDs were tested by a Robin tester from all sockets and oven and lighting circuits etc, all good. When I switch "off" my garage lighting, which is 3 fluro fittings the...
    • pastitsparky
    • Thread
    • circuit final garage leakage lighting rcd trips
    • Replies: 2
    • Forum: UK Electrical Forum
  12. K

    South London equipment sale final prices

    Not able to post any of these so prices based on collection. Kewtech ACC50MTL (R2 Wander lead) £30 Kewtech pat testing adapter £10 Bosch DMF 10 Zoom £20 Sparky FK652 wall chaser 2100w 110v £100 Fluke 1652b £200 fluke t5-600 £45 9 step fibreglass ladder £30 3 step fibre glass ladder...
    • Kay
    • Thread
    • electricians london equipment ff0000 final fluke kewtech ladder london prices sale south
    • Replies: 5
    • Forum: UK Electrical Forum
  13. A

    ring final circuit breaker trips off

    Everytime i use the brand new iron and ironing machine after a few minutes, the breaker trips off. Its annoying to go to electric panel board turn on everytime. The iron and ironing board machine has 2200 wattts. The ring final circuit breaker got 32amp which is enough to protect the sockets...
    • Abot
    • Thread
    • breaker circuit circuit breaker final off ring ring final trips
    • Replies: 16
    • Forum: UK Electrical Forum
  14. R

    Two 2kW convection heater on ring final?

    Hi, I am about to refurbish two attached outbuildings for an old colleague as he wants to use them for his music teaching (one room for teaching space and one for parents waiting room). After deciding it would be too expensive to extend his central heating radiator feeds we have settled on...
  15. P

    Ring Final Circuit Testing

    Hi all, I'm still learning this stuff so go easy! I've just carried out a ring final circuit test. Having identified both legs of the ring I began testing between both ends of the line conductor, which has given me an infinite reading on the meter. I also got the same result on the cpc...
  16. BigSi

    RCD Trip Times

    I was talking to one of my friends who just had his NICEIC DI assessment (about five months ago). We got talking about RCD trip times, because he was told that what he believed in (and myself) was wrong? RCD (30mA) TRIP TIMES (17th Edition Regulation 411.3.2.2. – Table 41.1) For a...
  17. S

    ring final 8

    When testing ring final how do i know incoming and outgoing legs when cross connecting L & N. Will the readings at each socket be considerably different when they should be roughly the same. R1 +Rn/4 at each socket. Cheers
  18. B

    Final ring circuits with radial CPC

    Have justed looked at a job to replace the consumer unit and it appears that both the final ring circuits ( Kitchen and the rest of the Flat ) have Radial CPC's. The flat is wired in multicore Singles and Plastic Conduit , has anyone come across this type of design before. Both "ring circuits"...
  19. D

    PME final circuits question

    I have a query, Im working on some signage that is connected to a PME supply. This is supplied to a leb header by straight concentric 16mm cable and then to and RCD with outgoing circuits to the sign. Now I have just seen that work by others have been carried out in the form of doubling up on...
    • deegee
    • Thread
    • believe circuit circuits connected earth european final pme question
    • Replies: 8
    • Forum: Commercial Electrical Advice
  20. B

    Final Circuits Limitaions

    Hi, Doing a EICR, and the usual limitations apply as to no lifting of floor boards ect..... also noted that im going to visually check 2 socket, 2 switches and 2 pendants on relevant circuits. so my query is, when filling in the 'final circuits' section and 'Termination of cables' on the...
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