Split-phase power is only common in the US and other countries with 120 volt (+/- 5%) mains. In the 230 volt (+/- 10%) world, it is typical to power single-phas

Split-phase power is only common in the US and other countries with 120 volt (+/- 5%) mains. In the 230 volt (+/- 10%) world, it is typical to power single-phase loads either across two phases (delta) or between a phase and ground (wye).