conductor

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  1. T

    240V & CPC conductor

    I will make an installation for fire alarm system (detectors 240V supply with interlink between of each one) using single wires or pvc cable enclosure in pvc conduit or pvc trucking.The detectors have the symbol of double insulation with out any point for earth terminal and my question is if...
    • TestEngineer
    • Thread
    • 240v conductor cpc detectors electricians' talk point system
    • Replies: 3
    • Forum: UK Electrical Forum
  2. Tuttle

    Main Protective Bonding (Domestic CU Change, TN-S supply)

    I've gone around in circles several times on this and I'm still not completely sure what the answer is ... generally speaking, when changing a domestic CU in a house that has a TN-S supply and 6mm2 main bonding (which is in good condition) is it necessary to upgrade the main bonding to 10mm2? I...
    • Tuttle
    • Thread
    • bonding change conductor conductors domestic earthing electricians' talk main minimum protective supply tn-s
    • Replies: 4
    • Forum: Domestic Electrician Forum
  3. S

    Continuity of neutral conductor

    This won't be the first daft posting of mine, but apparently once you get up to 20 postings you get additional privileges. So please treat me with contempt. When testing a radial circuit you establish continuity of the Line and earth when you measure R1+R2. What test ensures continuity of the...
  4. S

    Undersize Earth Conductor

    Hi, just carrying out a PIR, and the equipotential bonding conductor is about 4mm rather than the 16mm required. The socket circuits are RCD protected. My question is, what code would you put this down as? I put it as a code 2. But should it be a 4? Should this be upgraded immediately? Thanks...
  5. I

    do you still need to contact DNO when exporting TNCS earth

    hi dont want to open the usual debate re tncs earth, looking for where i can find out the answer as to weather the DNO still needs to give permission for there earth to be exported any one help ?
    • ianphilip007
    • Thread
    • certain conductor contact dno earth electricians' talk equipotential installations still when
    • Replies: 6
    • Forum: UK Electrical Forum
  6. S

    16mm Earth main protective conductor

    Hi everyone, Just a quick question I hope I can get some advise on. Saw a 1 bedroom purpose built 1st floor flat last night that is in need of a rewire. The consumer unit is the old rewire-able type with 16mm T&E on supply side. Although its red and black on the 16mm, it does look newish (10...
    • Sav
    • Thread
    • conductor earth electricians' talk main protective
    • Replies: 72
    • Forum: UK Electrical Forum
  7. T

    earthing conductor

    Hi all quick question.... mains board has 16mm earth cable leaving board and been told there is a connector block joining 16mm to 2 x 10mm earth cable which then terminates at tnc-s system.If Ze is within limits does this conform to current regs???
  8. Top Cat

    Little table for CPC sizes in 2 & 3 conductor cables

    Do not know if this has been done before but i find it useful as am always forgetting. 1.0mm cable has 1.0mm CPC 1.5mm cable has 1.0mm CPC 2.5mm cable has 1.5mm CPC 4.0mm cable has 1.5mm CPC 6.0mm cable has 2.5mm CPC 10.0mm cable has 4.0mm CPC 16.0mm cable has 6.0mm CPC
  9. I

    seperate bonding conductor

    hi when running a 10mm bonding( seperate to the cpc proctected distribution circuit) conductor for a pme supply to a detached garage that contains (water/gas services) is it ok to run from exisitng house cu to gargae cu and then bond the services to garage cu. or does the bonding conductor have...
  10. 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?
  11. 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 electricians' talk neutral rcd rcd tripping tripping
    • Replies: 35
    • Forum: Australia
  12. 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 electricians' talk lightning repair
    • Replies: 15
    • Forum: Australia
  13. 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...
    • La Poste
    • Thread
    • aus conductor electricians' talk stranded
    • Replies: 3
    • Forum: Australia
  14. 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...
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