天气预报15天查询> 数码> 120千瓦用多大电缆

120千瓦用多大电缆

更新时间: 2020-12-16 00:00:00     

选择70平方的铜芯电线。120千瓦功率电流计算:三相:P=1.732UIcosφ。P:功率;U:电压;I:电流;cosφ:功率因数,电阻负载取1,感性(比如电机)负载取0.85;根号3=1.732,I=P/(1.732×U×cosφ),I=120/(1.732×380V×0.85)=214A。

根据电线电流对照表,120KW负载至少要选择70平方的铜芯电线。70平方的铜芯电线明线敷设安全截流量约247A。

关键词: 千瓦 电缆

如有意见、反馈、侵权或投诉等情况,请联系:

电话:
邮箱:

我们将会在48小时内给与处理!

版权所有 Copyright ? 2009-2020 tianqiyubao3.com

页面:/news/view-1086079/ | 耗时:0.5209 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=1086079 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1086079 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1086079 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(2570289,99133,1714563,3158463,1002767,1110774,417326,1354405,84324,2322029,2393724,775339,1426873,1098974,977925,1194769,1224458,661527,1153554,1099389,1121680,1139106,1095219,2722257,538542,1236073,2949079,1085566,685670,1118753) ORDER BY field (ArticleID,2570289,99133,1714563,3158463,1002767,1110774,417326,1354405,84324,2322029,2393724,775339,1426873,1098974,977925,1194769,1224458,661527,1153554,1099389,1121680,1139106,1095219,2722257,538542,1236073,2949079,1085566,685670,1118753)