bonding

  1. J

    Borrowed CPC for water bonding

    I've come across a house whereby the redundant immersion heater circuit (15A) has had it's CPC repurposed as a means of bonding the incoming water supply in the same cupboard. Irrespective of the CPC being undersized is this, in theory, allowed or must the earth bonding be clearly identifiable...
  2. newfutile

    Unusual gas meter bonding

    3 gas meters bonded via a rod , I have not been in these properties just thought I see what others think of this?
  3. Pretty Mouth

    Main bonding, supplementary bonding

    A technical question: Regulations require us to bond extraneous parts back to the MET with an appropriately sized bonding conductor. I don't dispute that, that's what the regs say so that's what I do. In situations such as outbuildings with extraneous parts, where the distributor's earth is...
  4. M

    VA 2015 code Question with bonding and grounding for service upgrade

    Hello, I am working in the state of VA and they use the 2015 State of VA code. I am upgrading to a 400 amp service the meter base supports two panels dual lugs in it. One panel will be a 200 breaker "MAIN" and other will be future use. I know how to wire most of it but really unsure how I would...
  5. newfutile

    Bonding of Water pipes (plastic incomes)

    Just wondered what opinion people have of bonding of short lengths of copper water pipes, this is in the communal area of flats . above the copper it goes back into plastic and appear to enter the building in a blue plastic pipe
  6. C

    Neutral ground bonding

    Hello, yank living in Chile. Electric is the same as UK...220v. I am installing a whole house ATS. The generator is a floating neutral. The manual states the neutral to ground bonding must be in the ATS. Being a yank I am used to working with 4 leads 2 hot 1 neutral 1 ground. Now I have...
  7. cliffed

    Main protective earth bonding conductors

    We are now told no bonding is required if the Water enters via plastic insert, same with the Gas.. So why are we bonding the Lighting protection conductor to the Main earth terminal bringing an extraneous conductive inside the building,when we are actually trying to prevent this happening.
  8. Z

    Plastering, bonding, painting.

    Hi folks, I have just started working with an electrician who is adamant that the chasing during a rewire is plastered and painted over by the electrician himself. I'm sure I have heard electricians instructing the client to get a plasterer and painter to finish up. How do you guys do it...
  9. Ben Keer

    Earthing and bonding

    Hi all. Following on from some research into the adiabatic equation, I realised that its ok using it to determine the main earthing size but I couldn't work out whether it gave me a size big enough to also support main bonding from it. The scenario being if I were wanting to run a submain from...
  10. M

    Isolation Tx, Bonding of Metal Parts

    Hi all, quick question, I have come across a 230V control circuit supplied from an Isolation Transformer. The controls are located within a metal clad enclosure near to local socket outlets and other accessories. I have measured continuity between the metal casing of the controls enclosure and...
  11. R

    Earth bonding - checking safety for my mum

    Hi everyone, So, I live a long way from my mother (8/9) hours... And so I only get to see her intermittently. She has had a fair bit of work done by whom I believe to only be a 'handyman', who is also her friend so it's a sensitive subject to bring up, and I want to ensure if I am right to be...
  12. J

    Bonding extraneous parts

    Do extraneous conductive parts such as hand railing have to be bonded back to the MET or can they be linked to a known earth ie uni strut or cable tray?
  13. G

    Main bonding gas

    Hi, just looked at a job to replaced a CU in an old bungalow with a detached garage (garage has is own CU). The gas meter/supply is in the garage and currently no visible bonding. My question is where should the gas be bonded and which CU should it be run from or should it be bonded both in...
  14. Rockingit

    Structural bonding in a BMO

    What are people's thoughts on exposed structural steel bonding in a BMO where each dwelling is fed from a Ryefield on a private network? Would you bond it once at the main incomer, once at the Ryefield or however many times at each downstream CU? And I guess, same question for gas!
  15. Dartlec

    Supp bonding requirement with no extraneous-conductive parts?

    Yes, still doubting my own judgement when it comes to supp bonding and EICRs, so would welcome any thoughts on the latest one. Newish flat (2000s) with MK split board, so no RCD on lighting. Bathroom contains: Vent cap only (some clever full flat extraction system that isn't currently...
  16. Dartlec

    Novel gas main bonding

    Thought I was onto a real winner today when checking the gas bond to find a nice bonding conductor run directly to a local earth rod: The main house is currently TT with a rod on the opposite side of the house, so maybe they thought the foundations counted as a massive MET :rolleyes: Was...
  17. M

    Questions on bonding

    Afternoon A simply question but like confirmation from the more knowledgeable. Can someone confirm if there is a direct short between a line conductor to extraneous pipework I.e water or gas. In what scenarios will the MCB trip or not trip? My own thoughts are that if it has a negligible...
  18. D

    Main Bonding for incoming plastic pipe

    Hello All Noticed the existing bonding for the cold water supply is only 4mm. The supply pipe out of the ground is clearly a plastic pipe. It joins a brass stopcock under the kitchen sink cabinet and the rest of the plumbing in the house is in copper. I'm worried I need 10mm bonding and will...
    • Deleted member 112675
    • Thread
    • bonding incoming main main bonding pipe plastic
    • Replies: 6
    • Forum: DIY Electrical Advice
  19. snipersmith87

    Main Bonding - Multiple Buildings

    Could somebody please put me on track. Main bonding conductors are sized relevant to earthing conductor (TN-S / TT) or PEN conductor (TN-C-S). On a large installation (Industrial / Commercial) with multiple buildings containing Extraneous parts should ALL the bonding conductors be sized the...
  20. F

    Earth Bonding In A Bathroom

    Hi Electricans, I am a homeowner with an earth bonding question I am receiving conflicting advice upon and hoping someone can help point me in the right direction. A few years ago I had a full bathroom replacement via my insurance company and a bathroom installation company they supplied...

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