Michael J. Mahon wrote:
No, it's not a 110-0-110 (balanced) system, with 220 line-to-line. It's unbalanced 220-0, so it's 220 volts only. (I expect that at least some 220v countries also support balanced 220-0-220 so that 440v loads can be bridged line-to-line.)
Well, we do have three-phase sockets that provide 380V line-to-line, commonly used for electrical stoves, and in industrial settings; but I've never heard of 440V stuff.
-- Linards Ticmanis