Chris Bacon wrote:
Grant wrote:

Sparks wrote:

After a bit of Googling it seems that 4mm^2 cable might be used in a
radial installation but I disconnected the wire between two sockets
in the room and they both still worked - does this allow me to
conclude that I have a ring mains? Also, 4mm^2 cable doesn't seem to
be available from B&Q, etc. - the next size up is 6mm^2.


Maybe it was a radial at some point, then was taken back to the CU
and made into a ring?

Are there any markings on the cable?


... and can you see both ends of the ring coming back to the C.U.?


I don't really know what I'm looking for at the CU so I think, based on
other advice in this thread, I should really be getting in a qualified
electrician.

Cheers,
Grant