Bonding combi boiler gas pipes

[MickSmith5824]

From my understanding you need to run both a 10mm earth from CU to water stop clock and seperate 10mm to gas, exception being if cable is uncut can link both gas and water together. In a scenario where been asked to change consumer unit but getting to gas pipes of combi boiler is practically impossible what are options. My thinking is that if water pipes tested and proved to be bonded correctly why would it not be feasible to link out water pipes and gas pipes of combi boiler. This then brings all pipework upto to same earth potential no?

 

[Ian1981]

Usually at the most convenient place! Where there are a number of steel structures in the ground I do usually do a visual verification that various sections are bolted together and do an R2 test to a few sections after the bond is connected. Granted though in general little thought is given to bonding extraneous steelwork

Admittedly I bond to the shortest route from the MET , as long as it’s accessible for I&T, whether this is completely the correct method, I don’t know?

 

[davesparks]

Where do people prefer to bond structural steel?
There is no ‘as close to entry point’ other than towards the ground and has multiple points but are usually connected together.

Wherever is sensible/possible and preferably somewhere that will be accessible for inspection when the building is completed.