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.