Light switch wiring
Looking at a nearly completed extension the other day, I noticed that
there were two separate cables awaiting connection in each light switch patress, one being a live feed and the other going to the light fitting. I know how lighting is wired in the style where one cable carries a live feed through the switch back to the junction box then to the lamp, but how is this style wired up? Thinking about it, there seems to be one connection point short using a conventional light switch. |
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The Natural Philosopher wrote: wrote: Looking at a nearly completed extension the other day, I noticed that there were two separate cables awaiting connection in each light switch patress, one being a live feed and the other going to the light fitting. I know how lighting is wired in the style where one cable carries a live feed through the switch back to the junction box then to the lamp, but how is this style wired up? Thinking about it, there seems to be one connection point short using a conventional light switch. There is. Common the neutrals using a connector block, and maybe the earths as well, but take a 'tail' from that to earth to the switch metal, and use L1 and common for the two reds (or whatever colour they are these days) Thanks. So one has to put a connector block in the back box? How is this better than using junction boxes in the ceiling void, or am I missing something? |
Thanks. So one has to put a connector block in the back box? How is this better than using junction boxes in the ceiling void, or am I missing something? Because the joint is accesible much more easily than under floorboards. Dave |
OK, I see. Thanks, all.
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