On 8 Feb 2021 at 17:38:55 GMT, "ARW" wrote:

On 08/02/2021 00:48, Dave Plowman (News) wrote:
In article ,
ARW wrote:
On 07/02/2021 14:12, Dave Plowman (News) wrote:
In article ,
newshound wrote:
That's simply because 3+e is made for two-way lighting

Then it makes no sense to use three phase wiring colours.



Well you cannot just use 3 browns can you?

Triple and earth for two way switch circuits had two reds and a black.
Shows you how old my drum of it is.


Never seen that. I have seen triple red and earth.

And a black core would suggest the intention was to use a neutral?

Could it be intended for looping in a succession light fittings with switched
live from a smaller number of switches being connected between them?

--
Roger Hayter