If #10 is effective for a 60 amp OCPD, why not for a 20 amp OCPD. I don't believe that the increased resistance due to length will inhibit the operation of the CB. And if the EGC and circuit conductors need to be matched in size for some concept related to balanced, or equal impedances between circuit conductors and EGCs, why can the EGC be smaller than the circuit conductors in circuits above 30-amp?
