final

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  1. happysteve

    IR compliance - trainee (and mentors!) quiz

    Been reading up for my 2394/5 exams next week. Learnt some interesting stuff over the last few days. Thought I'd pose a simple quiz, as this was something that I misunderstood, and I'd be interested to find out if others do too (or if it was just me!) :) Just for fun, trainees and mentors can...
  2. happysteve

    GN3: IR test, whole installation vs final circuit

    Eh up :) Someone tell me where I'm going wrong. I'm reading up on testing theory, using GN3 (6th edition, incorporating Amd 1, 2012). Section 2.7.7, pp40-41. "Simple installations that contain no dist. ccts should pref be tested as a whole, see fig 2.4a." "Test should be carried out with...
  3. I

    Fused spur from ring final for exterior lighting

    Trying to calculate the voltage drop for a run on external lights supplied via 5Amp Fused/rcd spur from local ring final circuit. for a quotation and have got a bit confused re Voltage drop. 27m run in 1.5mm cable total load on lighting radial 420w. (no diversity as all lights either on or...
    • ianphilip007
    • Thread
    • circuit exterior exterior lighting final fuse fused fused spur light lighting ring ring final spur
    • Replies: 6
    • Forum: UK Electrical Forum
  4. C

    400v through a ring final circuit

    Hey guys, I had a callout the other day, 7 fan coil units where not working, these where supplied via a ring final circuit and once all unplugged the circuit engaged, I latter discovered all fan coil units had a dead link between line and earth under a 250v insulation test. The manager and...
    • Chrisday1990
    • Thread
    • another circuit final motors previous ring ring final through units
    • Replies: 5
    • Forum: UK Electrical Forum
  5. S

    Ring Final Circuit testing, What is wrong. Trainees only to answer please.

    You have been asked to carry out a full test on a ring final circuit. It is wired in 2.5mm single core cables. (I have made the test result values up to make things easier to work out). You have confirmed that the ring is continuous, and your r1 value is 0.5 ohm, your rn is 0.5 ohm and your r2...
    • SirKit Breaker
    • Thread
    • answer circuit final please ring ring final testing trainee trainees wrong
    • Replies: 20
    • Forum: Electrical Course Trainees Only
  6. P

    Cup Final

    Time get ready for my u14s youth final. Wish us luck! Bradford Town Youth Panthers Vs Bath Arsenal Chippenham Town Hardenhuish Park 16:30 kick off
  7. U

    NICEIC Certification Scheme NICEIC Form questionH

    On an EIC, be it with whoeverm but using a standard one, or that of niceic online, how or here would I write the details of a control circuit from a time switch to Contactor etc? Or dont you bother?
  8. R

    I Can't See How This Works...

    Here's the scenario: Ring Final Circuit Design Current = 20 Amps Circuit Breaker = 32 Amps (may well be using an RCBO - but that's another story) Ring length total (end to end) < 45 meters Correction Factors - grouping factor of 0.78 (reference method E with 9 other circuits) Gives an Iz of...
    • R1CH-G
    • Thread
    • cable can't circuit electrical work final length works
    • Replies: 7
    • Forum: UK Electrical Forum
  9. C

    Advise for a final year apprentice.

    If in your years of experience you could pass one bit of advise to a final year apprentice about to qualify what would it be and why? Is there anything you wish someone a little older and wiser had told you before you finished your time?
    • Callum Jackson
    • Thread
    • advise apprentice apprenticeship final
    • Replies: 17
    • Forum: UK Electrical Forum
  10. D

    How do I record Siemens Box No. 22465A on installation Cert.

    I will be installing a new Ring main for a kitchen install and have come across a cut-out that is totally new to me. Has anyone seen one of these..and how do I record its details on my Certificate.
    • Dave1982
    • Thread
    • box cert circuit final installation kitchen record siemens supply
    • Replies: 22
    • Forum: UK Electrical Forum
  11. K

    High continuity resistance on ring final circuit

    Hi peeps I have continuity measurements on a ring final circuit of: L/L 1.4, N/N 0.78, E/E 1.7 Loose connections somewhere? There is a new CU with RCD. Insulation resistance measurements are good. There is a boiler added into the circuit as a spur. Any suggestions or comments? THANKS!! :) :) :)
    • kkkkk
    • Thread
    • check circuit continuity final resistance ring ring final singles values
    • Replies: 20
    • Forum: UK Electrical Forum
  12. P

    dodgy ring final

    Hi need some advice, changed a db today everything was fine until testing ring final,there was no continuity on r1 r2 rn so no ring now but the 1 leg is supplying power to all the sockets in the house so basically a radial, it was on a 30 amp old fuse so changed to a 20 amp mcb did a i/r test...
    • pablo4321
    • Thread
    • dodgy final ring ring final
    • Replies: 18
    • Forum: Electrician Forum
  13. H

    Continuity of ring final

    Hi guys I am new and struggeling. Can any one pleas tel me why r1+r2 have to be divided by 4 pleas
  14. R

    no cpc continuity on ring final, strange readings !

    Good Evening all, Been at a property today starting intial tests for a board change tommorow. There are two ring circuits, on one of the ring circuits i had an open circuit on the cpc. Live and neutral where fine 0.4/0.4. I started to locate the break by splitting the legs and joining the live...
  15. XS Training

    NVQ 3 Electrical - Final Registration 31st December 2013

    We have received many enquiries about the final registration date for the NVQ 3 Electrical Installation and can confirm that the final registration date is 31st December 2013 with the final certification date being December 2016. We are now offering people the opportunity to secure their...
  16. S

    Broken CPC on ring final

    My friends downstairs sockets are tripping the RCD. First thing I did is unplug everything on the circuit, switched on the MCB and the RCD tripped. Tested continuity of L-L N-N CPC-CPC between the legs. CPC has no continuity whatsoever. Could anyone advise me what would be my next step to...
    • skamuk
    • Thread
    • broken cpc final ring ring final
    • Replies: 59
    • Forum: UK Electrical Forum
  17. S

    30A JB's and 32A ring final circuits

    ive been having a dispute with another electrician about using 30A JB's on rings a ring is made up of 2 legs of 2.5mm T+E, 2.5mm T+E ref method C has current carrying capacity of 27A now surely the JB has to be rated higher than the cable, but using a 30A jb although this is less than the 32A...
  18. R

    EICR code for 4 core 1.5 MICC in Ring Final Circuit.

    Which code would be considered appropriate for a ring circuit protected by a 30A rewireable fuse wired in 4 core 1.5mm2 MICC cable installed to method C. Circuit consists of 12 double sockets serving a large chapel area in a church dating to approx 60 years. I have put a code 2 for...
  19. H

    Final connection of shower feed

    I need some advice regarding the final connection of the tails for a new dedicated consumer unit for a new shower. There are connecting blocks between the meter and existing consumer unit with spare ways but without pulling the service fuse I can't connect up without working live. Is this a job...
  20. M

    Good luck in the final

    Congratulations to the England ODI cricket side on making it look easy today. Not exactly the game I was hoping for with my fellow countrymen being 80 for eight wickets at one point....but hey, there's always a next time. Good luck for the finals.

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