Quote:
Originally Posted by cRiPpLe_rOoStEr
IIRC the 220V in my country is usually 3-phase, while the 380V is found only at some industrial installations.
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I meant the 220/110V system in the US, they use split phase there without RCDs in the breaker box.
That means phases are 180° seperated with a neutral in between.
So they get 110V+110V, plus if a hot wire is touched and a ground fault created, nothing is stopping it unless there is so much current flowing through the poor individual touching the hot wire that the fuse blows.
Here in europe we have 220V phases and 380V 3-phase, we also have RCDs in the breaker box wich stop the current after miliseconds even if its only a few mA.