bonding

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  1. R

    Daisy chained earth bonding cables

    The earth bonding cable has been daisy chained to 3 gas meters (the conductor has been cut at each earth strap). Is this satisfactory?, will it pass an inspection ok ?
  2. E

    Rebar bonding for insulated monolithic cement slab

    Hello! I am in the planning stages of a new dwelling construction. The foundation will be a monolithic cement pad with rebar. Based on my research, I am fairly certain that I need to ground the rebar within the slab. The slab will have rigid insulation under it and will have a vapor barrier...
    • Epsilon
    • Thread
    • bonding cement grounding insulated screwfix
    • Replies: 2
    • Forum: UK Electrical Forum
  3. aesmith

    Earth Bonding - LPG Pipe That Does Not Go Underground

    Hi, Our cooker is LPG, fitted on the inside of an outside wall if that makes sense. The gas pipe runs internally then through the wall to the regulator and changeover unit mounted outside, around 4' off the ground. The pipe doesn't go underground at any point. My understanding is that it...
  4. littlespark

    Brain fart - bonding gas from cylinders

    Does a copper gas pipe, coming into the house require bonding when the pipe is being supplied by propane cylinders, via rubber hose. Doesn’t go underground at any point. The water pipe is bonded, and therefore connected to gas at the boiler, which is at the point of entry of the gas…. Can’t...
  5. N

    Gas meter with plastic supply pipe - earth bonding worthless?

    A 'Sunday challenge' for the qualified electricians.... Can anyone explain why a built-in gas meter housing box that is located 600mm above a block paved driveway, with a plastic (Polyethylene - MDPE) supply pipe and no extraneous conductive part, could result in a dangerous potential...
  6. F

    Main Protective Bonding

    Evening all, Recently started working for a company carrying out electrical installations - I've found a job today that didn't have any bonding to the incoming water or gas supplies and both were in metal so do require bonding. Spoke with my boss to explain and said that I was popping out to...
  7. M

    UK Earth bonding requirement for water pipe (metal entry point, switch to plastic after 300mm)

    Good morning everyone. I’m looking at getting an EV charger installed at my home and the company is requesting that I earth bond my water supply piping. The main water pipe entering the property is metal, then there is the stop cock, and after about 100mm it turns into a plastic pipe (total...
    • mbat22
    • Thread
    • after bonding earth entry pipe plastic point regulations requirement switch water
    • Replies: 8
    • Forum: UK Electrical Forum
  8. R

    Using one cable for multiple Earth bonding

    HI all, I've had 3 x additional gas supplies installed in a building. Can i use one 10mm bonding cable and link these new supplies (keeping the cable continuous by stripping the sheath and clamping into earth straps) or do i have to run 3 new earth cables? Also can i use a staple gun (metal...
    • Roogy1
    • Thread
    • bonding cable earth multiple using
    • Replies: 7
    • Forum: UK Electrical Forum
  9. D

    UK imagine you have discovered a water pipe in a bathroom

    Q. imagine you have discovered a water pipe in a bathroom that has been repaired at some previous time using a plastic connector -So I am a little confused about this question because, I am being asked to explain why this situation can be dangerous also. how can you "remedy" the situation...
    • D_electro
    • Thread
    • bathroom bonding electrical extraneous pipe water
    • Replies: 9
    • Forum: UK Electrical Forum
  10. D

    Comical vid from Efix about ground installation earth foundation bonding and earthling

    I wish all updates could be done like this :)
    • Dustydazzler
    • Thread
    • bonding earth ground installation
    • Replies: 1
    • Forum: UK Electrical Forum
  11. S

    UK Consumer unit TT system far from DNO fuse

    Evening all, I’d appreciate your opinions here: I’m looking at an old (150 years+) stone house. Complete rewire and renovation. DNO fuse is currently where the master bedroom will be (upstairs). Client wants it to be moved to a more accessible location downstairs about 15m away depending on the...
    • Sib_elec
    • Thread
    • bonding consumer consumer unit dno fuse system tt system unit
    • Replies: 2
    • Forum: UK Electrical Forum
  12. cliffed

    Main earth bonding protective conductors

    EICR recently done, Swa sub mains armouring used for cpc & MEBPC. Installed 40 years ago, water/gas/structural bonding required, these are @ 10mm Tncs earthing system @ origin which is remote from buildings 120mm tails. The sub mains vary in sizes from 25mm to 50mm….what’s your thinking on...
  13. Jon Dance

    UK Gas pipe bonding: permissible options

    Hi guys I’ve seen people state in forums that it is permissible to bond a gas pipe as a continuation of the bonding of the rising water mains. Can anyone supply proof/documentation/official guidelines etc., where this is explicitly stated. Below is an image of what I am planning. My gas safe...
  14. newfutile

    Metal steps secured to concrete (bonding)

    We have had 2 metal steps installed to cover main supply cables (out to flats) from a Ryefield . when measured IR from MET to steps i got 0.091 MegOhms. The usual calculations are for when a 30 ma RCD is protecting (which is not the case here) 91 Kohm is above the usual value of 23 Kohm I...
  15. newfutile

    Pipework bonding in flats

    I have measured 0.08 to 0.15 ohms between earth and pipework, which according to GN8 makes this extraneous, i guess its bonded inside the flats which i have no access to. should these be bonded at the communal consumer unit as well?
  16. D

    Decomissioned gas pipe as a bonding conductor?

    What do you guys think about using decommissioned gas pipe which is welded throughout and 4" industrial in steel. I am clear on regs that say you cannot utilise a gas, oil or water pipe as a bonding conductor but this would effectively safe a lot of time and money.
  17. newfutile

    Metal chequer plate floor bonding

    In a communal electric intake room for flats (meter room) there is lots of bonded trunking and tray, also the metal door frames were found to have extraneous parts linked to earth , these have now been bonded. They have now fitted a metal floor , i have not conducted a IR test to earth as yet...
  18. J

    Swimming Pool- bonding

    Afternoon An internal swimming pool (recessed into the concrete floor of a basement in a domestic house) The pool has a metal frame However all pipes feeding the pool are plastic Am i right in thinking I do not need to bond the metal frame as it is not a extraneous metal part ? nor do I...
  19. E

    EICR gas bonding

    Hello everyone, I am buying a property where the current owner has a EICR stating unsatisfactory due to (3.1g) main gas bond omitted and gas installation pipes. The report also states the following overview:- **General condition of the installation (in terms of electrical safety): Wired to...
  20. A

    Bonding Missing

    Morning all. Just been to a domestic due to a problem on a ring. Found the issue no problem. But when I removed the cover of the CU I noticed a new supply had been wired in for the heating, however the CPC hadn't been terminated and was resting on the MET. So having re terminated the CPC and...

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