I have a query and I'd really appreciate some help please...
I live in an old two-storey house in Scotland, and the lighting wiring is contained in metal pipe conduit. The pipes are screwed into circular metal housings where the wires drop (and return) to the wall switches.
The conduit contains seperate pvc coated single-core wires for live, neutral and earth. There is no "twin & earth" cable anywhere in the lighting circuit.
I need to reposition a light fitting on a downstairs ceiling, but there's not enough wire length or pipe to go with it. The location of the switch will not change, it's just the actual light fitting.
I can't find suitable pipe, so I'm wondering if it would be acceptable if I removed the short length of pipe and three single-core wires from their housing and replaced them with a suitable length of twin-and-earth.
The problem is, that there is only a switched live and earth coming from the down-pipe, the neutral emerges from another pipe that is screwed into the side of the housing, so only the live and earth from the new cable would go down to the switch, the neutral would need to be joined in the housing using connector block. Is this acceptable? Or could I even join the three pairs in the housing, leaving the current switch wires in place?
I can't find a suitable junction box that will connect with this pipework, else I'd have a solution (I think!).
Thanks for taking the time to read this. I hope you can help. If any more information is needed, or even clarification, please let me know.