conductors

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  1. L

    Connecting main protective bonding conductor into MET thoughts

    Any thoughts about connecting main protective bonding conductors into the MET instead of distribution boards? Watched a spark do it the other day and never really thought about it myself. Achieves the same result so it shouldn't be an issue.
  2. P

    Testing

    Does it matter which method (method 1 or method 2) you use when testing for continuity of the circuit protective conductors? Or is each method dependent upon which the type of circuit you are testing on ring or radial? I have been told that test method 1 is used for lighting and radial...
  3. P

    Continuity Tests

    Is the continuity test for circuit protective conductors, the same test for ring and radial circuits or is there a different test for each type of circuit? Also what is the difference between testing for cpc continuity and testing for continuity for ring final circuit conductors?
    • PLW
    • Thread
    • circuit conductors continuity cpc earthing ring circuit testing testing and commisioning tests
    • Replies: 1
    • Forum: UK Electrical Forum
  4. P

    Continuity Tests

    Is the continuity test for circuit protective conductors, the same test for ring and radial circuits or is there a different test for each type of circuit? Also what is the difference between testing for cpc continuity and testing for continuity for ring final circuit conductors?
  5. D

    2395 written exam question

    Hello, Sat my 2395 written exam tonight. Two of the questions caused quite a bit of confusion amongst a few of us that sat and dissected it afterwards. The question was relating to an insulation resistance test on a lighting circuit where it was stated that the fluorescent lights could be...
    • Dave the spark
    • Thread
    • conductors exam question written
    • Replies: 5
    • Forum: UK Electrical Forum
  6. L

    Does it need it?

    hi everyone, I have got a job to do in a local hairdresser to change a consumer unit fed off an economy 7 meter. My question is do you need to test and notify the works like you would in a domestic dwelling? Also is it mandatory that the incoming services of water/gas are bonded with 10mm...
    • Liam howe
    • Thread
    • bonding conductor conductors domestic protective
    • Replies: 23
    • Forum: UK Electrical Forum
  7. gazdkw82

    Terminating 10mm

    changed and upgraded my dad's shower supply as his new shower is too powerful for his existing 6mm He has a 45amp double pole switch in the spare bedroom which is the means of isolation so for ease of installation iv used the same switch. However I'm finding it really difficult putting the...
  8. Midwest

    Crimping Solid Conductors

    I know that this has been debated before (quite recently in fact, but it is a boring Sunday afternoon), but as new products may have come available, I was wondering members views. So the scenario is; Sunday afternoon, Mr DIY has finally fallen to pressure to Mrs DIY and agreed to put up shelf...
  9. I

    Un-sound electrical connection of live conductors

    Guys can you explain what may result of un-sound electrical connection of live conductors? Your advices will help me alot, thanks✌✌
    • Ilaya
    • Thread
    • conductors connection electrical insulation joint live
    • Replies: 8
    • Forum: UK Electrical Forum
  10. akwoody2

    EICR question

    Hi chaps, This may have been asked before but i cant seem to find it when searching so im sorry if someone easily finds it. Im currently carrying out a EICR at a commercial premises and the water is bonded from a sub DB and not the MET, its something that i understand needs to be noted but is...
  11. grumpyjohn01

    Interesting cable system

    Did some work on a sheltered housing style flat from the 80's today. It was wired in a type of 'cable' I don't think I've seen before, comprising a flat flexible thick rubber 'conduit' with 3 separate tunnels each containing a PVC single core of very high quality, the sizes of the conductors...
  12. tony mc

    Which Reg in the Yellow book

    Reg 433.1.204 Is in relation to Accessories to BS 1363 supplied through a Ring Final circuit etc and Appendix 15 gives Ring and Radial circuit arrangements. The minimum CSA is 2.5 mm (1.5 MI ) unless a FCU is used and it can be reduced! Just been asked to find the Reg which states 1.5mm CSA...
  13. Adie moore

    my industrial inexperience?

    short story, I've come across a 3 phase distribution circuit wired in 4mm singles on 63a hrc fuses. I found this because 1 of the phases was on a 20a and had blown. this seams wrong to me but as I said I don't have much ind experience. this is a new circuit from a tap off box. also I don't want...
  14. K

    Conductors, Insulators, Semi-Conductors and Doping.

    Good morning/afternoon/evening/night forum members. I'm a student in a Basic Computers Maintenance and Repair class at present and currently doing a project on the above title. In my project right now I'm looking for several things that I just can't seem to find or know how to put together. In...
  15. 7029 dave

    Colours Of Conductors.

    Just looked at a thread, got me thinking of old imperial cables etc. The mention of the old red white and blue 3 core pvc no cpc got me thinking about a situation. I remember because have only seen it once in 37 years on domestic installations. Block of flats in East finchley North...
  16. I

    Satisfactory or Unsatisfactory

    Hi fella's , Following a recent report I have had sent to me t was deemed that multi-core SWA doubled up to supply a single phase piece of equipment, was unsatisfactory for following reasons. 'Poor onsite installation practice may result in increased risk of failure,electric shock or fire'...
    • Industspark
    • Thread
    • cable circuits conductors cores factory satisfactory unsatisfactory within
    • Replies: 15
    • Forum: UK Electrical Forum
  17. 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...
  18. J

    Low Insulation resistance readings when connecting final socket on ring?

    Hello All wondering if anyone could shed some light on a problem i have with my IR readings. I recently rewired a house.. took care pulling cables in etc . finished 1st fix, checked cables by looping ring main in connector blocks and doing continuity and IR test . continuity was ok, IR read...
    • Justintime
    • Thread
    • conductors connecting fault final insulation insulation resistance readings resistance ring socket sockets testing when
    • Replies: 16
    • Forum: UK Electrical Forum
  19. D

    How to work out min cross sectional area of live conductors?

    Hey need some help with some homework the question is 'Determine for one of the high bay lighting circuits within the workshop, the minimum cross sectional area of live conductors for current carrying capacity and voltage drop.' So if I have a lighting circuit with 5 high bay 150W luminaires...
    • dyel
    • Thread
    • area bs7671 cable conductors cross electrical work how to live out question section trainee work
    • Replies: 24
    • Forum: UK Electrical Forum
  20. T

    4 core fp200 ring circuit

    Came across a 2.5mm fp200 4 core cable used as part of a ring today, am I right in thinking this isn't an acceptable method as there will be only 1 earth wire in the cable ??
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