Hi i've recently come to the end of my apprenticeship and have just taken my AM2 competence test. I passed all sections but one which was the wiring part. Because i don't do alot of 3phase because i'm more of an domestic installer, i wanted to know if you needed to label each phase conductor into the circuit breakers relevant to the phase number it went into? Say for example my lighting circuit which i have no problems with but failed on was connected into L2.. would need to label the phase conductor accordingly? This is the only reason i can see why i failed it and would just like someone to enlighten my situation. Cheers.