Lighting circuit

[conspiracy jews]

Hey, just a quick question from a numb moment i had a few day ago, i came to connect a 2-way lghting circuit which was operated by 2 3cores and used a neautral. i dident wire this lighting circuit, and have never come across it before, can anyone explain how this would have worked?

Also, when wiring the emergency keyswitch in a grid switch, when the emergeny switch is operated isolate all the lights on that circuit? So all the lights go off and the emergencys come on?

 

[SirKit Breaker]

The neutral nust have been an unsleeved live.

3 core switch to switch and wired colour for colour at each switch. 2 core blue and brown wired into L2 and L3 of switch. All cores sleeved brown as reqd.

There is no need for a neutral at the switch unless it has been looped in and out of the switch instead of using the roses or JB`s.

Cheers.............Howard