i am trying to wire E,L,N ceiling light to 3 cables, 1 cable has 2 red live and an earth, 1 has a black and an earth, the last one has black, red and an earth. I have connected all 3 red together, 2 black together and the earths, connected accordingly and the lights look great but they dont switch off???!! please help im no good at the electrics.... I do know however that none of the wires are marked to indicate swich live ??

Dopey, March 2009

Same has happened to me three red two black one earth, lights would not turn off , sorted it in the switch , now all lights go off if i switch the kitchen one off. Pulling my hair out here.

exrafbloke, January 2014

"3 cables,
1 cable has 2 red live and an earth,"
Most unusual having two red wires - one of them may well be switched live

"1 has a black and an earth,"
Most unusual having no Red wire

"the last one has black, red and an earth."
Ideally they should all be like this

You still need to identify Switched Live and you still need a four-way terminal arrangement at the ceiling

Here's another picture...
http://www.diydata.com/planning/electric_lights/switch1.jpg

Peccavi, March 2009