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The dreaded bonding again

Kelly Marie Angel

Sorry for this but my boiler recently had her annual service all was well except they said I don't have any bonding in place except I think I do the gas main is bonded in the meter cupboard and the radiators and hot and cold water feeds are all bonded in the bathroom upstairs. All pipework is copper throughout the plumbing never been altered in 40 years except for a new boiler oh and removal of the water tanks. So can I be confident the bonding upstairs is good enough? 

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    gkenyon: 
     

    Tomgunn: 
     

    Sorry to intrude BUT… why was ‘cross bonding’, (something I always used to do, in the past), stopped, (introducing a ‘potential’ where it didn't exist)?

    Thanks / regards… Tom

    It never went away. Just not always necessary in domestic installs.

    Certainly used regularly in major infrastructure, absolutely required for EMC purposes (Section 444 of BS 7671) - we call it “common bonding network” (CBN) instead of “cross bonding”.

     

    Hi, thanks for the update!!

    Sounds a bit like our football leagues? Like we all know that the ‘Premier League’ is still the 1st / 2nd divisions etc… so, it's now known as the ‘CBN?' 

    Many thanks for this!! 

    regards… Tom

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  • 0

    gkenyon: 
     

    Tomgunn: 
     

    Sorry to intrude BUT… why was ‘cross bonding’, (something I always used to do, in the past), stopped, (introducing a ‘potential’ where it didn't exist)?

    Thanks / regards… Tom

    It never went away. Just not always necessary in domestic installs.

    Certainly used regularly in major infrastructure, absolutely required for EMC purposes (Section 444 of BS 7671) - we call it “common bonding network” (CBN) instead of “cross bonding”.

     

    Hi, thanks for the update!!

    Sounds a bit like our football leagues? Like we all know that the ‘Premier League’ is still the 1st / 2nd divisions etc… so, it's now known as the ‘CBN?' 

    Many thanks for this!! 

    regards… Tom

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