Supplementary bonding question

kingeri · Feb 9, 2017

It's something you encounter on rewires, unless there's a compelling reason to remove it, I leave it in. I added it to my own bathroom even though it isn't strictly necessary, but it gives me a bit more piece of mind. RCDs do fail, and they can stick, especially when the test button hasn't been pressed in years. I sincerely believe that the most important thing you're doing when pressing the test button (other than testing the function of the RCD) is actually loosening up the switch!

Midwest · Feb 9, 2017

The other thing to consider, is the pipe in question actually extraneous. With the advent of plastic pipes, pushfit fittings one can actually make something extraneous by bonding it, when it's not in the first place.

So test it first, as per Petes #12. Just my opinion.

Risteard · Feb 9, 2017

Midwest said:
With the advent of plastic pipes, pushfit fittings one can actually make something extraneous by bonding it, when it's not in the first place.

To be pedantic they can't make it extraneous. It either is or isn't. But they can introduce an earth reference that previously didn't exist because they were non-extraneous.

Midwest · Feb 9, 2017

Risteard said:
To be pedantic they can't make it extraneous. It either is or isn't. But they can introduce an earth reference that previously didn't exist because they were non-extraneous.

Couldn't put it better myself, oh no you did!