ARW wrote:
BS 1363 part 2 is the relevant BS for sockets.

10.2 says "all accessible metal parts shall be in effective contact with the
earthing socket contact"

I would consider the socket Big Clive dismantled to be a failure of BS
1363-2

That's not quite it, because on this socket there's a front fascia piece of
plastic to cover the screws, so they aren't actually accessible. The issue
isn't that the screws aren't earthed, it's that one or other socket earth
pin isn't earthed if only one earth terminal is used.

I'm sure not earthing a socket pin must violate BS1363-2 /somehow/...

Theo