Does this require Main Bonding?

[HappyHippyDad]

The water pipes enter the house in metal, then there are a few cm's of copper after the stop cock and then plastic. It is hidden behind the kitchen draws (which can be removed to access).

Does this require Main Bonding? The stop cock tests as 0.36Ω to earth, it is TNCS.

I just cant see how fitting a Main Bonding cable achieves anything in this case?

 

[Toneyz]

Your own test has determined that the incoming pipe is extraneous so needs bonding as per BS7671:2018.

I think that's your answer there.

 

[ChrisElectrical88]

Essex pretty much nailed it in his earlier posts. Had sonething similar the other week. Bonded it.