Lighting (again)

[booyaka]

Hello everyone

My friend recently bought an old house and has since started decorating. He asked me round to remove what looked like a pull cord type affair that was on a bedroom wall (minus the cord?!). I isolated the circuit then took it to bits to discover 2 black wires and a red, all 1mm. At the light switch there was a 1.5mm black wire connected to the Common and a 1mm red wire to L1 and 1mm black wire to L2. When I put the power back on I then put the switch on and tested it with power showing through the red wire and one black.

The light didn't come on but if I connect the red wire and one black wire that were connected to the pull cord thing together then it works fine . The other black wire seems to be redundant. Not sure if its ok to leave it like this or not

 

[shane]

Hello everyone

My friend recently bought an old house and has since started decorating. He asked me round to remove what looked like a pull cord type affair that was on a bedroom wall (minus the cord?!). I isolated the circuit then took it to bits to discover 2 black wires and a red, all 1mm. At the light switch there was a 1.5mm black wire connected to the Common and a 1mm red wire to L1 and 1mm black wire to L2. When I put the power back on I then put the switch on and tested it with power showing through the red wire and one black.

The light didn't come on but if I connect the red wire and one black wire that were connected to the pull cord thing together then it works fine . The other black wire seems to be redundant. Not sure if its ok to leave it like this or not

in domestic premises you don't who's done or wired what, as we all know electricity is colour blind (i;e)-just coz a conductor is marked up with earth sleeving that doesn't meen that some ----er hasn't connected it to a line, OR is there a neutral in there and coz it's not the first light the meter is pickin it up,, ive seen in older houses an d new ones were someone has used the earth as a strapper in a 2 way switch but been in earth sleeving,, does it go to a joint box some were and a conection is loose?.. I HATE COWBOYS , FEAH HARR...LOL

 

[Phil]

it`s the same in commercial shane you should see what some of the brewery lads do when they go in. any bit of twin is fair game to some.

 

[shane]

and not to mention the industrial sites " holy ****"lol,, some real death traps, some of small and large workshops "yiiksse" i was at a very large well known rolling mil at sheff not long agohow no one is not dead i don't know m8,,lol

 

[Cj24]

How is best to wire 2 4pin clicks and a 3pin for a pir an em light and a non emergency light via a key sw cheers and if poss can you break down for me so can understand it easily thank you

 

[Guest123]

Do you mean in singles or t+e???

 

[Cj24]

In singles mate

 

[Cj24]

On a key sw you have your feed in with ya sw out to lights and your em feed out other side but on a sw I just seen there is 3 cables on bottom of sw and ya em put top wat could this be?

 

[All Sorts]

2 diff questions on same thread? .. confusing..

back to the OP question.. seems to me you have..

L1 (1mm red) & L2 (1mm black) strappers between the 2 switches, then
other 1mm black at pull switch will be either LIVE feed in or else switch wire out to light fitting, and
other 1.5mm black at wall switch will be either LIVE feed in or else switch wire out to light fitting.

but I don't see how you'd get the light to come on with either black feed or switch wire disconnected?