richardzhng 发表于 2011-12-12 19:38 ) K) y) ?( L* O2 U. R( Fare you sure it is three phases and one neutral, not three phases and a ground?
' L) u' [6 F5 p" n"are you sure it is three phases and one neutral, not three phases and a ground?"0 |$ Q4 P5 @; G6 C( I E$ g- F
: f: T2 \& l" F& d& s4 A2 a
" A" X9 K; \- ?: a" S, ~
I am sure . Would you gave me some advice? thanks!