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51问答网 > 总功率300KW用电量需要用多粗的电缆，《三相5线制》

总功率300KW用电量需要用多粗的电缆，《三相5线制》

2025-03-28 11:13:26

推荐回答（1个）

回答1：

选择导线要考虑导线的安全载流量外，还要考虑导线的长度和温升因素，以及所允许的电压损失。如果负载是三相的电动机，电流应是600安，导线的截面应在250毫米平方以上。可选择ZRK-BV250×3+1×185+1×120平方铜芯电缆。

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