Interesting though Paul the subtle difference between the loop-in colo(u)r coding between the US and UK. When using normal ‘Romex’ style cable for the switch loop in the UK the hot coloured wire is used as the ‘line’ and the neutral wire (taped hot) is used as the switched return ‘load’. Exactly the opposite coding is used in the US – does anyone know why this is?
I understand that for commercial work in the UK, one can obtain twin plus ground cable with two hot coloured wires specially for loop-ins.
