CU Change - No main earthing on water main. Polypipe incomer

[antimatter]

As already said, if it is a plastic pipe then no need to main earth bond, but you still need to make sure that the resistance is low between pipes and class II equipment in the bathroom (sorry I have forgot the formula) to rule out supplementary bonding.

Sorry , but do you mean Class I?

 

[Johno]

Yes, well done for spotting my deliberate mistake.

 

[oldtimer]

4.4 OSG is saying you do not have to bond if both supply and house pipework is plastic but if supply is plastic and house is copper then recommend you earth it in other words earth the bl+%6 pipework if metal because if you dont then Jobs Worth inspector who is probably reading forums like this will pull you up for not doing so and why would he do this ? because he can and he has the power to say sorry you fail and I am just doing my job and this is how I show my manager nothing gets past me.
What I would say is this environment suffers from the lack of definition and open season on interpitation but what I have learned is if you go up against the people who police our trade then human nature dictates that they dig in because they can.