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Earth Bonding Gas & Water Pipes

AncientMariner
Assuming the copper water pipe (above the stop-cock at end of MDPE pipe) is close to the gas pipe, is it acceptable/permissible for the earth bonding conductor to be a single 10 mm² green/yellow from the consumer unit to go to say the water 351 earth clamp, looped around the screw and then to the gas 351?  This without cutting the cable, so that it is one continuous length. Or if not looped around the crew, for a bare section to be opened up 3 strands and 4 strands and the screw fitted between?
Thanks.
Clive

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  • 0
    perspicacious:

    ...


    I would also think that putting the 10 mm2 under one side, ie without looping round the screw to be also a no no.


    ...

    The new Tenby clamps are designed to do exactly this. There is a groove for through wiring, see Tenby Rapid Clamp Ultra (legrand.co.uk)

    I can't see the "safety.." label on the fitting, unless its on the other side.


    A screw head terminal without a separate captive washer does not seem to comply with BS951:2009 which i just found on the web, but don't think i can post a link to here.
Reply
  • 0
    perspicacious:

    ...


    I would also think that putting the 10 mm2 under one side, ie without looping round the screw to be also a no no.


    ...

    The new Tenby clamps are designed to do exactly this. There is a groove for through wiring, see Tenby Rapid Clamp Ultra (legrand.co.uk)

    I can't see the "safety.." label on the fitting, unless its on the other side.


    A screw head terminal without a separate captive washer does not seem to comply with BS951:2009 which i just found on the web, but don't think i can post a link to here.
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