richardzhng 发表于 2011-12-12 19:38 6 |. B/ K- J0 Fare you sure it is three phases and one neutral, not three phases and a ground?
. s0 `% j J. [3 d0 x$ v- Z"are you sure it is three phases and one neutral, not three phases and a ground?" + o( g! ~: f4 Y4 k . z3 Q, e8 t1 { 2 `2 w: Z- X9 I8 f1 @" Y: q. v: uI am sure . Would you gave me some advice? thanks!