Wiring a switch and light

Bahco · 23 Jan 2009

I have a rough idea but can anyone help.
I want to put a light in the loft space and have a fused supply from a socket to feed the light.

I am not sure how to do the switch. Do I take the feed to the light fitting and then how do I wire it back to the switch

Taylortwocities · 23 Jan 2009

Please look at the STICKY and FAQs at the beginning of the forum.
Its all there

breezer · 23 Jan 2009

View media item 1257

Bahco · 23 Jan 2009

Thanks fellas.

Which post should I be looking at please

Spark123 · 23 Jan 2009

Have a peep here: //www.diynot.com/wiki/electrics:single-way-lighting
If you are not going to have a feed to a 2nd light with its own switch then just ignore the supply out to next light.

Bahco · 23 Jan 2009

Thanks brother.

Probably email you tomorrow when i get stuck!

Pensdown · 23 Jan 2009

Loft lights are a bit different for room lights because the supply cable normally comes from low level up to the lights. So it's normally easier to fit the switch in the supply cable as it runs up to the light. The live would be switched in the normal way and the neutral (and earth cables) joined in choc blocks.

If your feed is already at the light just run a T&E cable from the light to the switch.

At the switch - brown in common, blue in L1 with a bit of brown tape on it.

At the light - Brown connected to the live feed in a separate terminal block, blue from the switch into the live of the light with another piece of brown tape to identify it as switched live.

I'm assuming your using the new colours. If not brown = red, blue = black.

If you are using new colours, put a sticker on the CU (hand written Avery is fine) saying that the installation has mixed colour wiring.

Bahco · 23 Jan 2009

Feed is via FCU.

So, I feed light from FCU as planned and then from the light back to the switch attaching reds together and back to Common. The blues together at light and back to L 1 and earths as per.

Does that sound right or shall I go back to the plumbing forum and stay there .

Spark123 · 23 Jan 2009

You have an odd colour combination! You'll either have red+black cables or brown+blue. (OK - there are some more but I won't bore you with them!)

At the light:
Browns connect together but to nothing else.
Blue from supply cable to N
Blue from the switch cable (with brown sleeve) to L

At the switch
Brown to C
Blue (with brown sleeve) to L1

All the earths need to be connected too.

Bahco · 23 Jan 2009

Thanks P

Bahco · 24 Jan 2009

Got it sorted and it works!

Many thanks

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Wiring a switch and light

breezer

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