Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

  • State Not Answered
  • Locked Locked
  • Replies 25 replies
  • Subscribers 32 subscribers
  • Views 2692 views
  • Users 0 members are here
Options
You may also be interested in
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

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? 

Parents
  • 0

    The honest answer is that regs. written by different groups of people do not always join up well, and whoever writes electrical guidance for plumbers does not bother to check what is in BS7671 and if it has changed in the last 50 years. It has.

    Add the complication that the latest gas installation advice is that there should be an insulating joint or insulating insert (so called “IJ” or “II”) in the gas pipe between the street main and the meter if the electrical supply is PME, presumably to disrupt diverted currents leaving the building by an ever shrinking metallic network of gas pipes.

    see here for an article about it  and  section 5,2 here

    Now personally  I have never seen this done in the wild, but  if anyone at all actually did follow that guidance it would totally undo much of the benefits of any bonding to the incoming main anyway.

    Mike

     

     

Reply
  • 0

    The honest answer is that regs. written by different groups of people do not always join up well, and whoever writes electrical guidance for plumbers does not bother to check what is in BS7671 and if it has changed in the last 50 years. It has.

    Add the complication that the latest gas installation advice is that there should be an insulating joint or insulating insert (so called “IJ” or “II”) in the gas pipe between the street main and the meter if the electrical supply is PME, presumably to disrupt diverted currents leaving the building by an ever shrinking metallic network of gas pipes.

    see here for an article about it  and  section 5,2 here

    Now personally  I have never seen this done in the wild, but  if anyone at all actually did follow that guidance it would totally undo much of the benefits of any bonding to the incoming main anyway.

    Mike

     

     

Children
No Data

Community Rules & Guidelines