Why isn't there a 6-core cable in the 318nY style, ie 3186Y?
There is a 3185Y 5-core where the cores are Black, Blue, Brown, White & Green/Yellow and a 3187Y 7-core where the cores are Black, Blue, Brown, Grey, Red, White & Yellow.
Also a 5-core cable where one of the cores is NOT Green/Yellow?
It will, I guess, be down to demand, but for rewiring say a Siemens Wireless Thermostat where the Receiver Unit needs L + N together with c + n/o & n/c a simple 5-core cable would be so much more straightforward.
(Due to occasional unreliability, I need to re-position the Receiver Unit the other side of a brick wall lined with foil backed plasterboard.)
Clive
