> You can even get a 480V shock if you short yourself across two wall sockets wired to alternate phases (+240V, -240V). I'm unaware of any country doing 180° 2

> You can even get a 480V shock if you short yourself across two wall sockets wired to alternate phases (+240V, -240V). I'm unaware of any country doing 180° 2-phase 2*240V. It's 120° 3-phase, 380~400V delta.