Comment Re:Current? Fat cables? (Score 1) 597
You may be thinking of commercial 3phase wiring where you get 110V phase to neutral and 208v phase to phase. In residential wiring, the final transformer coil is center tapped so you get 110 phase to neutral (center tap) and 220 phase to phase. Note that the two split phases are inverted with respect to each other because the neutral is a center tap.