Spilt concentric cable duel use

[timhoward]

Personally (distance permitting) I'd just reunite the Neutrals, and change the light to Quinetic!

 

[brianmoooore]

Personally (distance permitting) I'd just reunite the Neutrals,

And hopefully connect them properly into the main switch.
A perfect example of how NOT to do it. Tightly twisted together like that, they will almost certainly become loose if the wiring in the CU is disturbed.
I always lightly twist the individual neutrals of split conc. together , and then either bind them with insulating tape or a length of heatshrink, but the stripped ends that go into the device terminal are always parallel with each other, and gently twisted around a bit as the clamp is tightened.

 

[Lucien Nunes]

I think @brianmoooore has it; the cable voltage rating is probably only valid when all the neutral strands are paralleled, because the insulation between any two is not equivalent to that between one and earth or line. Even very thin insulation will in practice stand 230V or more but whether it has been tested or certified for use with voltage between the neutral strands is a different thing.

 

[Mikegh]

And hopefully connect them properly into the main switch.
A perfect example of how NOT to do it. Tightly twisted together like that, they will almost certainly become loose if the wiring in the CU is disturbed.
I always lightly twist the individual neutrals of split conc. together , and then either bind them with insulating tape or a length of heatshrink, but the stripped ends that go into the device terminal are always parallel with each other, and gently twisted around a bit as the clamp is tightened.

Dont twist the solids together or twist the stranded conductor