Extra cable in ceiling light Ask questions and find answers to many subjects relating to electrics and electrical work

[GwentLarry]

Just preparing a room at home to redecorate. Removed the ceiling light fitting and there's an extra cable …

As expected, there are 2 x loop cables and a switch cable. Then a single, double insulated wire. Black inner insulation and it was connected to the rest of the black/neutral wires. Not connected to any other wires, it's carrying 240 V with respect to earth.

Disconnected from light and light works OK. Haven't yet found anything else not working.

Any ideas what it might be?

[Mr White]

You will have to follow the cable to establish what it is or was for, since that is not going to happen, you will just have to be content that it is one of life's mysteries.

[GwentLarry]

Thanks, more or less what I thought :-)

Just hoped somebody might have an easy answer …