Why did we change insulation colours from Red,Yellow and blue / black to brown,grey and black?
I find it more annoying when creating wiring diagrams. Black and blue have the same abbreviation.Red, yellow, blue was much easier to see in a dimly lit work area… and confusion came about with blue and black basically swapping purpose.
Reply to the thread, titled "Uk fixed wiring insulation colours" which is posted in UK Electrical Forum on Electricians Forums.