plasmanu wrote:Ok.
That good big good economic logic.
If everyone had three-phase 380v there would be even less copper.
Yes but in three phase it is necessary to balance the power of each of the 3 phases. Otherwise it starts messing around.
Not practical at home. You would have to turn on at the same time your TV screen on one phase, a vacuum cleaner on another, and a halogen spot on another. And turn off at the same time.
It is only by using a three-phase motor that it works on its own since it is intended for.