main bonding

  1. R

    Main bonding

    Hi.. I recently purchased a flat and intend doing some re-wiring etc. I have noticed that there is no main bonding going to the gas pipe that enters my flat. The problem is that the cu is located at the opposite end of the flat and the building is concrete floor and ceiling. The gas meter is...
  2. J

    Gas and water main bonding

    Hi, I have a submain 16mm t+e and separate 10mm, question is submain comes from cellar up to ground floor, gas meter is next to incomer in cellar and water stoptap is other end of property....gas will be bonded to met at incomer but is it ok to bond water back to consumer unit on ground floor...
  3. G

    Bathroom light ip and main bonding?

    If a bathroom light is out of the zones but directly above the shower does this not need up rating? Eicr no code? Main bonding to water and gas tncs must be half of the supply neutral. Do you count the incoming cable to the service cutout as the incoming? Or the tails from top of cutout to...
  4. L

    Main bonding at outbuilding

    Hi all, I have a commercial premises (school) that requires installation of main bonding at a block which is an outbuilding from the main school. Now the bonding in the main school is 50mm, however the cable feeding this outbuilding is just a 25mm 4core. So what size should I be using...
    • londonlec
    • Thread
    • bonding building copper main main bonding outbuilding steel supply system
    • Replies: 20
    • Forum: Commercial Electrical Advice
  5. D

    LUG crimping main bonding cables ( 10mm)

    ^^^^^ yes or no ?
    • daiplayer
    • Thread
    • 10mm bonding cables crimping lug main main bonding
    • Replies: 12
    • Forum: UK Electrical Forum
  6. U

    Main Bonding plastic pipes

    Hi again, a kitchen has been ripped out, the main water stop was in there. it was all lead and copper water pipes and a main bond was to be run. However matey has lopped these pipes off and left about 4 inches of lead pipe coming in and then gone and replaced with plastic pipes. so would the...
  7. B

    main bonding

    Just a quickie, is there anything in the regs that says a main bonding cable cannot be joined? I have installed one for an oil pipe which has now been moved...
  8. 2

    Main bonding upgrade and cu stickers?

    Hi, i am new here so sorry if this is in the wrong forum. I am a time served electrician and have been laid off so i am taking the jump to setting up on my own. I have been mainly commercial and industrial with only small amounts of domestic work. I have got a job coming up next week that i wish...
  9. P

    6mm main earthing conductor and main bonding conductors

    Been asked to install an extractor in bathroom. Installing 30mA rcd spur outside covering all lighting and ext fan. Obviously notify building control and installation cert. what's people's opinions of listing as a departure from bs7671 on installation cert. obviously recommend upgrade to 16mm...
    • pistolpete
    • Thread
    • 6mm bonding conductor conductors earthing main main bonding
    • Replies: 13
    • Forum: UK Electrical Forum
  10. G

    2 x 6 mm as main bonding ?

    Hi all ,got a tricky install as I cant get back to mains and they are having a bathroom refit , I've got 2 , 6 mm earths runing in to roof space can I double these up and use for a main 10mm bond? Cheers grand
  11. C

    Main bonding

    Sorry if this has been covered before. Went to a job today to wire a heating system and the install requires main bonding. The problem is that I can't get to the main board as its solid floors etc. There is a sub main feeding a db upstairs supplied by a 16mm twin. Can I run my 10mm earths to...
  12. I

    main bonding conductors

    hi can anyone tell me the what the maximum value of a main protective bonding conductor is
  13. B

    Fitting a DB without updating the main bonding.. Bad crack or safer than before?

    This thread will probably cause outrage but here goes.. Changes a DB a year ago from my 89 year old gran, She is proud of here house and spent a load on it recently doing it up.. Well I say loads... The electrics aint been touched in aged and well to be fair needed a test.. Giving she lives a...
  14. G

    main bonding

    We carried out a small installation job ,connecting 3 new circuits to an existing db,on one of the upper floors of a large multi occupied building.We were informed at the time that all existing services had been tested upto date,but we were unable to gain access to the incoming mains to verify...
  15. V

    Main Bonding Plastic Water Pipe

    Hi I have noticed that the water pipe in my own house has mains bonding to the CCU. However the incoming pipe is actually plastic that has been painted white. I know the on-site regs say bonding in this circumstance is not necessary. It is however providing an earth passage..albeit into the...
    • vespa
    • Thread
    • bonding main main bonding pipe plastic water
    • Replies: 47
    • Forum: UK Electrical Forum
  16. N

    What is the name of the fault when main bonding high resistance?

    Hi What do we call the type of fault when the main bonding conductor has high resistance higher than 0.05? Is it called non-continuous? Or high impedance? Many Thanks
  17. N

    Question regarding filling in the box for verification of Main bonding Conductor.

    Hi I am trying g to fill in the Electrical Installation Condition Report, section J. my question is regarding checking the boxes in the section Main protective Conductors. If I have a high value for main protective conductors say to incoming water. What happens to the box Connection /...
  18. S

    EICR Classification codes Main bonding

    Hello all, i failed a periodic inspection today and am still in debate with the client. He's obv not happy. An NICEIC registered electrician terminated the bonding into a metal back box of a socket outlet connected to the CPC of the radial s/o circuit. the regs say protective conductors for...
    • serpico4321
    • Thread
    • bonding codes conductors eicr main main bonding
    • Replies: 23
    • Forum: UK Electrical Forum
  19. M

    Main Bonding In Place who Checks every time ZE should be tested each time too...

    I saw the thread about the main bonding checks it got me thinking back to my house bashing days for the local authority they insisted that you checked the ZE or ZS call it what you wish . The MET point take a reading making sure that you have disconnected all main bonding first make a note if...
    • monkee
    • Thread
    • bonding every main main bonding place tested time too
    • Replies: 27
    • Forum: UK Electrical Forum
  20. jibjob

    Main bonding to gas

    Hi Guys, Have recently carried out an EICR on a property that has no main bonding to either water or gas amongst (many) other things. Bonding the water shouldn't present any problems but the gas supply is situated in the garage at the front of the property. The garage is not attached to the...
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