A couple of weeks ago, we received a letter saying that the gas main in our road and the service pipes will be replaced by new plastic ones.
This morning, an engineer called, and after seeing our supply, he told me that the pipes are already plastic. The pipe is steel where it enters beside the meter, but I am told that it is metal only for the horizontal length which passes through the brickwork.
The water supply is very obviously plastic.
Despite the supplies being plastic, they are both bonded and there is extensive supplementary bonding.
The electrical installation appears to date from the early 1980s. Originally, there was RCD protection only on sockets which were likely to supply equipment outdoors. All RCBO DBs have been fitted and I have recently been moving some remaining circuits to the new boards.
That leaves the question as to what to do with the main protective equipotential bonding, which appears to be redundant because the supply pipes are not extraneous-conductive-parts. That aside, the RCBOs appear to make the supplementary bonding superfluous.
So, what do I do with it? I see no point in reconnecting it, but attempting to remove all of it would requireconsiderable effort.
