Can you use aluminum wire to feed a a hundred amp sub panel 60 ft away? What dimension feeder wire for a 3 gang meter socket for three 100 amp panels? The equivalent American Wire Gauge (AWG) dimension for 2.3 mm of copper wire is approximately 10 AWG. Was the shaping of the spatial type of the American metropolis from 1920-1945 more closely influenced by personal vehicles than public transit methods? Approximately 1.