Sorry been away for awhile, sorry i dont know about the RCD's and NZS 3000 we dont use it and my AS/NZS 3000/2000 is superseded.
Sure hope it doesnt go that way.Can make good money on those socket outlets.(as long as they are in the correct zone) wouldnt want to get on "Target"


NZ Regulation No# 70 (4) (e)
"Where they are used as bonding conductors or
earthing leads, 4MM2

Also

NZ Regulation No# 70 (6)
" The minimum size of conductors for earthing connections of works is 16MM2"

Cheers Craig