I have to relocate a light switch. Not by much, just a foot or so. It's not possible to run a completely new cable, but it will be a simple matter to run a chased-in cable from the old switch box to the new one. I can fit a blank surface-plate over the old wall-box, but is it acceptable to use ordinary chocolate-block (of the correct rating, obviously) to extend the cable? Or is there some custom-made connector that I'm not familiar with?
Many thanks,
Bert