conductor

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  1. J

    Tt earthing conductor max length

    Hi All, Is there a maximum length for an earthing conductor, which is connected to the earthrod in a TT installation? If so, does anybody know what the max length please?
  2. K

    Rcd tripping

    Should the rcd trip everytime if somebody had softly touched the live core of a cable? Or does it depend on wha current is flowing?
    • Kev2632
    • Thread
    • aus conductor current neutral rcd rcd tripping tripping
    • Replies: 35
    • Forum: Australia
  3. A

    Lightning conductor repair on a Church

    Its beyond my scope, so do ant of you fellas know who does such work in East Kent? A 10metre section of bare stranded copper has been nicked, this heads off into the heavens directly to the spire & its a long long way up.
    • andyyoyo
    • Thread
    • aus church conductor lightning repair
    • Replies: 15
    • Forum: Australia
  4. La Poste

    Seven stranded conductor conundrum

    Greetings. I am trying to figure out a certain size of cable that has seven strands on line, neutral and CPC respectively. It has red and black insulation on line and neutral conductors, the CPC is coloured green (I think but am not sure yet), it is steel wire armoured. I have found this...
  5. R

    what code for a under sized armouring as a main bonding conductor

    hi what code do you think should be atributed to a 2 core SWA cable used as part of a Main bonding conductor the steel Csa equivelent required is 64mm sq and the current 2 core 25mm sq swa is a BS 6346 with a steel csa of 60mm sq the above info on the required CSA is from the ESC technial...
  6. D

    Protective conductor size... 2 contradicting regs?

    Been reading up on the regs regarding protective conductors and doing a few calculations for imaginary circuits. What is the point in having Table 54.7 in 543.1.4 if the values contradict those calculated using the adiabatic equation are much lower? Is 54.7 just there as a time saver so you...
  7. 1Justin

    TN-S inadequate earthing conductor

    Hi. I have come across this ~3mm dia earthing conductor soldered to the PE sheath on a TN_S system. Previous electrician replaced the CU and bonding but left this as is. I'm sure it should not have been left this way. Incoming cable looks like a lead sheath and I gather it might be paper...
    • 1Justin
    • Thread
    • aus conductor earthing tn-s
    • Replies: 14
    • Forum: Australia
  8. D

    Cooker hood - can I run it from the cooker switch?

    Hi chaps, Very quick one for you. I know I have to have an easily accessible switch for fixed kitchen equipment like the cooker hood, but can this be shared with another item of equipment? Going to have a standard double pole cooker switch for the built in oven, but wondered if I can also run...
    • DNS1
    • Thread
    • aus cable conductor cooker installation switch
    • Replies: 19
    • Forum: Australia
  9. H

    Query in use of grounding conductor

    Hello every body We r running bare aluminium tape in the concrete parallel to rebar of the column for grounding purpose from top to bottom of the building. Is there any chance of galvanic action between aluminium and rebar? If so than is this advisable to conceal the aluminium tape in the PVC...
    • Haris
    • Thread
    • aus conductor grounding query
    • Replies: 10
    • Forum: Australia
  10. Tuttle

    2.5mm earthing conductor from TN-S supply

    I found a nice easy second job for my Elecsa assessment. A mate wants an outside light fitting in his porch. He had a new consumer unit fitted last year, all circuits are RCBO protected, and he had a load of other work done at the same time. He's also had some other minor work done since then by...
  11. V

    Upgrade 'earthing' conductor on CU im not working on?

    ok, been to a job today, put in tail blocks and a shower CU (along with bonding), the existing CU is still in use and only has a 2.5mm earth from earth block to CU earth bar. Its only a short run and going to slap a 10mm in there, but would i have to? I know its a small job easy and thats why...
    • VMan
    • Thread
    • aus bonding conductor doing earth earthing electrical work existing not working upgrade working
    • Replies: 1
    • Forum: Australia
  12. 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...
  13. Les Macaulay

    30 metre run of Main Protective Bonding Conductor to Gas Main and Water Main

    Hi Fellow Sparks. I have to install a 30 metre run of Main Protective Bonding Conductor to Gas Main and Water Main in a commercial building. Is it permissible under the IEE Regs to clip a single 10 sq.mm PVC cable directly to the building surface for this, or should it be enclosed? Also...

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