发布时间:2025-02-01 20:06:20
根据使用电器的功率和电压来确定使用电线电缆的线径;
1、功率一定假如是P1,电压是U220V,则电流I=P1/U
2、功率一定假如是P2,电压是U380V,则电流I=P2/U
算出电流后根据电线载流量与截面积的关系表查出需要多大线径的电线。
下面是电线载流量与截面积对应关系表:
每天早上拉检查门就很多人看盯着我看而且都是同校同学被盯的很厌烦怎么办啊
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