electrical wiring colour coding ( Netherlands, Belgium, International)

Wiring colour coding Netherlands


New wiring (after 1970):


Single phase:


N - Light Blue - Null / Negative
L - Brown - Phase / Positive
T - Black - Switch wire
⏚ - Yellow/Green - Protective earth / ground

Other colours are permitted, as long as they are not in conflict with the internatinal standards for wiring of the mains as shown below.