I'm currently in the process of re-wiring a 1930's house. I've been replacing some of the ring main cables and sockets, by running the cables along the same routes (mainly down the cavity).
While doing some other research on the interner, I've come across some references that would indicate that cables now cannot be run down cavities. Is this the case? The reason that I've used these routes is that I could not dream of trying to channel a conduit beneath the ornate plaster cornice and picture rails that I have in the house!
Would encasing the cables in some flexible conduit down the cavity suffice?