Greg:
"John, I see no reason why the AFCI would have tripped until the victim had taken 30ma of fault current."
Would not a combo AFCI have detected this situation as a series fault, as it appears the screw hit the 'hot'?? I'm under the impression that a series arc (break/nick) in one conductor will cause a trip, and a parallel arc between two conductors will cause a trip, hence "combo". Is my summation correct, or am I not seeing something? Please remember, AFCI's are not required here in NJ yet...
