聯系人：胡先生
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地址：江(jiang)蘇省鹽(yan)城市大(da)縱湖區龍德北(bei)路
網址：mp3w.cn ;
380伏(fu)三(san)相(xiang)四線(xian)(xian)電(dian)(dian)(dian)路中，任意兩根火線(xian)(xian)之(zhi)間的電(dian)(dian)(dian)壓都是380伏(fu)，任意一根火線(xian)(xian)與零線(xian)(xian)之(zhi)間都可(ke)以組成220伏(fu)。這(zhe)個(ge)系(xi)統可(ke)以形成三(san)種(zhong)電(dian)(dian)(dian)源：即(ji)單(dan)相(xiang)220伏(fu)電(dian)(dian)(dian)源，單(dan)相(xiang)380伏(fu)電(dian)(dian)(dian)源，三(san)相(xiang)380伏(fu)電(dian)(dian)(dian)源，第 I 種(zhong)家(jia)用(yong)(yong)(yong)(yong)比較多(duo)，第三(san)種(zhong)工(gong)廠里(li)電(dian)(dian)(dian)機類用(yong)(yong)(yong)(yong)得多(duo)，第二種(zhong)用(yong)(yong)(yong)(yong)得少，只有(you)交流電(dian)(dian)(dian)焊機經常用(yong)(yong)(yong)(yong)到單(dan)相(xiang)380伏(fu)電(dian)(dian)(dian)源。
