conductors

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  1. P

    Protective Conductors Continuity

    Hi Guys and Dolls In my 2004 edition of the IEE Inspection and Testing Guidance Note 3, page 78, Protective conductor continuity can be confirmed with an Earth fault loop impedence test (R1 + R2 or R2 is not required to be measured). (Note 4) Ring circuit continuity also does not have to be...
  2. E

    Old Twin and earth conductors and cpc?

    Hello, This is the first time iv came across anything like this and i went to quote this fuseboard for a upgrade yesterday and had a look inside and did all the required testing and inspecting and said id get back to them with a date when i can do the installation but came across one slight...
    • elecypwn
    • Thread
    • aus conductors cpc earth old twin twin and earth
    • Replies: 18
    • Forum: Australia
  3. C

    Main Protective Bonding, 1 or 2 conductors?

    I had a search with no joy. I am trying to find a reg to state if its ok or not to use 1 continues 10mm conductor for gas and water Main Protective Bonding . Having a look at a new CU install where there is no MPB and lighting CPC at all . Fun Fun Fun :clap:Thanks
    • cablemonkey
    • Thread
    • aus bonding conductors main protective
    • Replies: 2
    • Forum: Australia
  4. S

    Test Sheet guide

    Both Basic & Fault Protection SELV – if anything is provided by SELV, this gets a tick, otherwise N/A. Examples would be 12v extractor fan or 12v downlights PELV – if anything is fed from a PELV supply Double Insulation – Anything double insulated, i.e light fittings etc. These may also have...
  5. P

    some help explaining earth fault for fault finding project

    this is what i have down at the moment.......is there anything that you guys would add? An earth fault is the most common fault in electrical circuits. An earth fault may consist of a circuit breaker tripping, a fuse blowing, or an RCD (neutral to earth) instantly or it may not re-engage. The...
    • p11jor
    • Thread
    • aus conductors earth fault fault finding finding help project switch
    • Replies: 16
    • Forum: Australia
  6. S

    testing neutral conductors

    Had another dispute with who i was working with today, with testing an new installation. Here goes I always thought that the proper testing sequence is R1+R2, continuity of bonding, insulation resistance. Then ze, then zs. rcd But the person i was working with today told me i should always...
    • Superspark23
    • Thread
    • aus check conductors continuity first neutral order testing tests
    • Replies: 13
    • Forum: Australia
  7. Z

    Fluor fitting tripping lighting circuit, help needed

    Replaced an old fuorescent strip light with new fitting as old one was tripping lighting circuit. Problem still there, wiring looks fine. Tee puzzling thing is it trips when you switch the strip light off. Swiching it on is fine! Any ideas?
    • zyderboy
    • Thread
    • aus between circuit conductors fitting help lighting lighting circuit needed problem screw tripping
    • Replies: 7
    • Forum: Australia
  8. R

    Parallel Conductors.

    Going slightly off piste on my D&V Project again. I'm thinking of running parallel conductors for an electric gate supply 'just to learn about it'. After reading the BGB it seems quite simple, in that the sum of two smaller cables will be the Iz of the circuit as long as the cables are roughly...
    • Rampage
    • Thread
    • aus cable cables circuit conductors parallel using
    • Replies: 16
    • Forum: Australia
  9. A

    Protective bonding conductors in a flat?

    I've just been to a flat tonight to look at some potential work, but there is no bonding conductor to the incoming water pipe inside the flat. I had a quick look in the main distribution board cupboard of the flats, but could see no evidence of bonding to the water, and the main water incomer to...
    • alanl
    • Thread
    • aus bonding conductors flat protective
    • Replies: 20
    • Forum: Australia
  10. S

    earthing conductors

    hello can anyone help me all i want to know is are 4mm main earth and main bonding conductors ok? as in passing a periodic inspection? its a tns external is 0.06 ohms pfc is 2.9ka talis are 25 mm and it has an 30ma rcd main switch i always asumed to minimum was 6mm but someone is questioning...
    • sparks4
    • Thread
    • aus conductors earthing
    • Replies: 4
    • Forum: Australia
  11. J

    Radial circuit, should branches be avoided

    On a new circuit (radial) should branches be avoided?
  12. J

    Radial socket circuit - duplicate protective conductors

    On a radial circuit, do all sockets require duplicate protective conductors back to the cu.
  13. J

    Sizing bonding conductors

    Hi guys, i have a question what size of bonding conductor is required for A shed that has a 63 amp 3 phase( 25mm2 swa) supply going to it. It is supplied from the main building that has a 400 amp TN-S 400mm supply . hust want to see if you have the same answer
  14. L

    3 line conductors in same protective device

    Is there any reg or scenario where it is acceptable to have 3 line conductors in the same 32A 60898 protective conductor ? Still ascertaining wheter two of which are a ring final but if they are is there some way that is allowed ? A RFC and a another Fused spur circuit in the same protective...
  15. H

    help on pirs

    Hi all, Completed my first pir yesterday (: now this client has got a three phase supply, TNS which feeds a ground floor shop and a flat above, the flat has a on peak and off peak supply. With the tails for the flat going into two kmf switches with a sub main cable of only csa of 10mm T+E for...
  16. D

    continuity of final ring circuit conductors

    Hello, I am about to conduct my first initial verification and i have spent all weekend reviewing how to do the recommended tests. However I have a question regarding final ring circuit test. 1- is this only for a ring main circuit with outgoing line and incoming line? 2- if the answer is...
  17. C

    bonding gas and water how do you work out when to go up from 10mm to 16mm and so on

    were currently doing a job in massive old pub whats going to be a libary, my gaffer says put 10mm bonding to gas and water but how do you actually work out what size is required
    • chopper
    • Thread
    • 10mm aus bonding conductors earth electrical work gas neutral out water work
    • Replies: 37
    • Forum: Australia
  18. S

    Responsibility for installing Main Bonding Conductors

    Bugger that's supposed to say BONDING not BOINDING ! ----------------- I've been asked to install a new CU at my mother in law's. She has recently had a new kitchen installed where new lights, and extra sockets were added (circuit extended) for the fridge and (gas) cooker. These sockets BTW...
    • scanner
    • Thread
    • aus bonding conductors installing main responsibility
    • Replies: 17
    • Forum: Australia
  19. Z

    Learner query on resistance tables for copper conductors and resistivity

    Hi everyone Table A.1 in Guidance Note 3 shows various values of resistance/metre for copper conductors at ambient temperature, including e.g: 18.10 milliohms/metre for one 1mm sq. conductor 0.387 milliohms/metre for one 50mm sq. conductor But these given values of resistance do not exactly...
  20. B

    Periodic inspection (EIC) report questions

    Hi all During r1 r2, ELI and PFC tests of a lighting circuit would it be a problem to leave lamps and ballasts etc in GN3 shows them out but I can't see a problem
    • Bluebob232
    • Thread
    • ballasts conductors eic inspection lamps periodic questions testing tests
    • Replies: 4
    • Forum: Industrial Electricians' Talk

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