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Gas pipe insert

lyledunn
This extract from ER G12/issue 4 Amd 12015. Is it common practice for a gas pipe to have a insulated insert? Certainly not here.

5.2 Earthing terminal

5.2.1 Provision of earth terminal

PME earth terminals can be offered to consumers unless there are reasonable grounds to believe either:

- their earthing installation is not designed to BS 7671.

- or

- the type of installation is not suitable for PME. (See Section 6 for examples where it may not be possible to provide a PME earth terminal).

Where a metallic gas service is provided to a consumer’s premises with a PME earth terminal, an insulated insert should be fitted in the gas service.
  • Former Community Member
    0 Former Community Member
    I believe it's pretty normal practice, Lyle - particularly on multiple residential units or similar, and on many single residential properties


    Either where the pipeline is metallic, or where it's metallic and carries a polyethylene liner pipe - but (obviously) not where the pipe line is polyethylene


    IGEM G5 covers the issue I believe, but I can't access the document from home


    Regards


    OMS
  • 0
    Thanks OMS. As usual I have got it wrong. Just talked with my buddy’s son who works for the contractor responsible for the gas service network in NI. Everything below ground is polyethylene. There are some legacy connections that have steel pipes but they are scheduled for replacement or sleeving.
  • 0
    In domestic properties the steel pipe is not actually removed, but cut through out in the street then the new plastic pipe pushed through it into the house, so you end up with possibly 6’-7’ of “earthy” pipe stuck up in the garage or somewhere, but it is not actually continuous all the way up the street.


    But then there’s a insulating insert at the meter.


    Andy B.
  • 0

    Sparkingchip:

    In domestic properties the steel pipe is not actually removed, but cut through out in the street then the new plastic pipe pushed through it into the house, so you end up with possibly 6’-7’ of “earthy” pipe stuck up in the garage or somewhere, but it is not actually continuous all the way up the street.


    But then there’s a insulating insert at the meter.


    Andy B.



    Unless they can't fit the new liner up the old pipe without it jamming, in which case you get a shiny new meter box on the front of the house, all at the gas company's expense.


    (Which is all very well until the shoddily built front porch starts cracking up one exceptionally dry summer, in which case the meter has to be moved once again to the side of the house, this time at the customer's expense. Frowning2)
     

  • 0
    Our previous house, built 1973, had a steel gas pipe up into the garage to the meter, but no plastic insert was fitted. (TNS electricity)

    et my parent's bungalow built I guess in the late 1960s did have a plastic insert (the meter there being in a kitchen broom cupboard.) Not sure about their electricity supply, but no PME label on cutout.

    Clive

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