Two light switched lines in same cable

[Richard Burns]

Just a quick clarification, I am thinking of replacing a T&E switch wire with a 3+E switch wire as an easy way to convert a single light switch to a double light switch without ripping out the wall.
This would mean that there would be two cores as switched lines, one for each light.
I am fairly sure it is safe and within the CCC and grouping requirements but I have a feeling I should not be doing this; but cannot remember why.

There are regs about single circuits not in two cables, two final circuits not in the same cable, but I cannot find anything about different parts of the same final circuit in the same cable, any pointers? Thanks

 

[sedgy34]

no problem just flag your colours, isnt that what 3core and earth is for.

 

[Silly Sausage]

I would say it's OK (without trawling the regs)
Reason being, it's one final circuit, so de-engerizing the circuit will render all the conductors in the cable dead.
One problem I can think of, if you're using LED lamps you might get the glowing effect on the off lamp if the other is on.

 

[Richard Burns]

Thank you, your ideas match with my initial thoughts.
Existing light is G9 halogen, new lights will be T5 fluorescent so should not be a problem, I am probably just remembering odd things and not connecting up in straight lines!
Cheers I will tell the customer "no problem"

 

[Silly Sausage]

Cheers I will tell the customer "no problem"

But don't quote me...haha!

 

[Farmelectrics]

thats what 3 core is for just make sure you sleeve acordingly

 

[telectrix]

even i agree . LOL.

 

[Guitarist]

I agree with tel