bonding

  1. 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?
  2. Darkwood

    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.
  3. 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...
  4. 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...
  5. 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...
  6. 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...
  7. D

    Earth Bonding

    Hi all, My first post-don't be too hard on me! I'm bonding an existing 3-phase power supply (150mm2 SWA cable) to various incoming services: Sprinkler main, water, compressed air, gas steam & condensate etc. According to BS7671, I can run 35mm2 wire. The run to first service from main earth...
  8. cliffed

    Main earth protective bonding conductors

    We now have no need to MEPBC to water if proved it’s not extraneous…is anyone MEPBC metal ducting for HVAC & such.
  9. A

    Is 25mm 3 core swa good for earth and Bonding

    So me and a colleague were having a discussion about using 25mm 3 core swa as a live, neutral, earth and a Bonding conductor when relocating the position of the consumer unit, I suggested that using a 25mm 4 core as I can't see the 25mm earth being big enough for 16mm earth and 10mm bonding with...
  10. C

    UK Water bonding in gas meter box

    Just had a boiler put in on a grant scheme. Water main earth bonding was connected in with the existing gas bonding's pipe clamp on the outlet pipework of the gas meter inside the meter box, then taken through the backplate of the gas meter box, then goes along behind the units to the water...
  11. D

    Earth bonding for EV Charging point

    Good morning I’m looking for a bit of help please. We are looking to get an electric vehicle charger installed at our house but the company have requested information and photographs of evidence showing that our pipework is earth bonded. Our house was built in the 1960s and there was no earth...
  12. I

    No bonding, no work getting carried out?

    Evening all, My NIC inspector told me years ago "if there is no bonding in place, you're within your rights to switch off the electrical installation until works have been carried out!".... not sure if this is true? When asked by a customer to carry out a job which you give a cost for before...
  13. A

    Bonding gas and water

    Hi guys Does the earth Bonding HAVE to be done at the meter or can it be put on the gas inlet to the boiler in a utility room? Plans have changed and cables already run ? Also am I right in thinking that if water inlet is in blue pvc pipe Bonding isn't required even tho it is copper on...
  14. A

    EICR LOCAL BONDING FLATS

    I’m sure this has been covered a squillion times before but advice please. EICR on block of 5 flats all with separate electrical supplies & meters. One boiler serving hot water via one system to all flats. Main bond to water and gas on entry to building. There is no bonding locally within the...
  15. G

    Bonding metal studwork,

    HI all, I need to bond metal stud work on new build houses, 4mm from socket to an upright, uprights have roof baton for noggins, then socket screwed to the baton, does the bond need access for testing at all? I'm looking into metal noggins for continuity,i think it will be better, just...
  16. dodger421

    Main Bonding Puzzle

    Hopefully someone wiser than me can help explain some odd measurements I’ve taken at my own home. This is a long read, I’ve tried to give as much information as I can because I suspect I’m over thinking the problem and missing something obvious that’s causing insulated pipework to have earth...
  17. DPG

    Bonding of 2 gas pipes

    Morning all, and happy Friday! I feel I should know the answer to this one, but I'm not certain, even after consulting GN8. A friend of mine has a semi-detached house with two copper gas pipes entering, one for the cooker and one for the boiler in the loft. They join together outside and are...
  18. P

    Main water bonding and plastic pipe bends

    Hi guys, sorry if this has been asked before. I’m currently in a flat where the tenant queried the water bonding. There’s a 6mm green and yellow leaving the DB and goes to the gas meter as it’s clipped direct I can see it isn’t continuos and go to the water. There is also no other bonding...
  19. I

    Water Bonding

    Evening all, I'd guess that this is a common question but haven't been able to find anything on the forums regarding the 18th. Working in a shop and the water comes into the building in plastic, there is then 3 foot or so of copper pipe followed by plastic throughout the rest of the...
  20. N

    Do I need to upgrade my earth bonding under my sink to pass EICR?

    (Rented property) The current bonding under the sink is 6mm - the electrician said it has to be min 10mm in order to pass the EICR. Is this correct? It looks like the wire has been there since the house was built and electrician said he would have to take a new one from the fuse box and somehow...

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