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4×50铜线能带多少千瓦
更新时间: 2021-12-11 10:16:14  

50平方的铜线明线敷设安全载流约200A,三相电的功率因数以0.85计算,则该线能承受的最大功率为:P=√3×U×I×cosφ=1.732×380×200×0.85=110KW。

因此50平方的铜芯电缆能带110千瓦,50平方的铝芯电缆能带84千瓦。

关键词: 铜线 多少 千瓦

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