When Green is Not Safe

Beware when working with Voltages Overseas!
In some ways the convention of mainland China does make a lot of sense A, B, C, legs 380V, 220V between any Leg and a Neutral.
(at least this is how it appears to me, don't take it as gospel)
Green however, is NOT ground.

Compared to USA Standards, this seems odd, but I guess as long as they all follow convention everything works out OK.