Extending a ring circuit

[F]

Right.

Got that.

So the bedroom floor is coming up tomorrow to break into the ring up there, drop down into the room below and then go back up again. A pain, but it needs to be right.

Thanks to all for their help.

[John Rumm]

I was thinking of saying that, but in the end dismissed it as too complicated given the number of "ifs" and "buts"... ;-)

[F]

Thanks for the suggestion. I've tried to work out what goes where but it involves too many assumptions (and previous ones have already proved to be wrong) to be sure.

[Stuart Noble]

A lot of older houses have a single ring main for upstairs and down. If yours has separate rings I wouldn't confuse things by having a downstairs socket on an upstairs ring.

[F]

It's a single ring for upstairs and down, but thanks for pointing it out!

[Mike Clarke]

Yes, if in doubt this is best avoided. Unless you're absolutely sure what goes where you could end up with no power to some sockets or a couple of spurs with _lots_ of sockets on them :-(