The problem on the range was identified while we were looking for something else!

All of the below is my best recollection of what we found.

The base problem was that the kitchen was tripping off when certain appliance combinations were used.

This was (possibly) identified as the kitchen being a ring main to a double socket, then everything else being on a radial off that.

This is now a functioning ring main.

While we were rooting around we labelled and traced all the breakers in the affected DB, and all of the sockets, lights etc. This lead to the dodgy socket.

Both ends of the spurred feed had been skinned back with a knife, this lead to a L-E fault at one end, and a N-E fault at the other. This was compounded by the same cable being penetrated by a nail in the middle.

This has now been replaced.

The work we have done is to good practice, and is certainly a lot safer than when we started!

We have however only attacked one DB, there's still another one to do.

In the future is a lighting upgrade, its all relatively simple electrically, but my knowledge of regs etc ran out pretty quickly at this point.