Hello
I'm spanish, my english is not veri good.
Exist three-phase lines in USA of 120/208 V or 127/220 V for comon uses (single-phase for houses and three-phase for power)??
Or alwais use single-phase lines of 3 wires 120/240 V??
A house conected to 3 wires, high votage for power - low voltage for lights and general use, make possible connect the 3 wires of house using 2 phase + neutral of three-phase line??
The plug Nema 14-15, make possible connect the 3 wires of house using 2 phase + neutral of three-phase line??
Thanks!!
PD. In Spain, cohabit three-phase lines 127/220 V and 230/400 V, 50 Hz, in star system