One more addition to this endless thread: I got some info from a Swiss sparky on their color coding. Current Swiss color coding: Phases: all colors but blue and yellow-green Neutral: Blue Ground: Yellow-green. Old colors: Phases: all colors but yellow and yellow-red Neutral: Yellow Ground: Yellow-red Swiss, is that correct?
Old Italian color coding: Whatever you feel like. Think a pink phase with blue polka dots is beautiful? Go for it! Common agreement seems to be: L red, N green, Ground yellow.