richardzhng 发表于 2011-12-12 19:38 , d% J1 M z8 }' \3 {& Z2 M- b2 tare you sure it is three phases and one neutral, not three phases and a ground?
; u' K& {0 \9 t8 ?"are you sure it is three phases and one neutral, not three phases and a ground?" 0 c! P: E$ ]. F/ R4 H2 t0 e% K, [* `1 ^: ~% N0 O
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I am sure . Would you gave me some advice? thanks!
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如果你的是煤气炉,电源功率不大,变压器不贵。二手的就更加便宜。" D6 k. E# u2 V/ j
如果你的是电炉,你这么做,不对不合法。没有必要省钱来使你的生意面临危险。如果你的烤箱坏了,那又要多少时间来修?损失更大。如果你自己接线引起事故,保险公司不会理赔你,而且会收到大额罚单。