In reply to Jim C:
> (In reply to Hooo)
> [...]
> My favourite trick for dealing with this is to find a socket that isn't protected by the RCD ( the main switch that trips), and plug it in there so that it can run for a while and warm up. I have a socket specifically for my fridge that is not protected, so that if the house trips while I'm away, my food doesn't spoil.
>
> How would I identify one of those unprotected sockets, that would be handy for fridges etc.?
Trip the RCD, and then see what still works.
Upstairs sockets are usually unprotected (unless your house has had a recent rewire).
> All my circuits are on a single Consumer Unit with an RCD, and I assumed then that all sockets/ on circuits or spurs would be protected. Is that not the case?
If the RCD is the same side of the consumer unit as the main switch, then probably all circuits are protected.
If the RCD is the opposite side, it's probably a split load installation, which means there might be an unprotected socket.