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250电缆多大套管

更新时间: 2021-04-09 04:02:24     

1、要知道4*50+1*25的电缆直径多大,然后要知道规范要求的电缆占套管截面积的百分比。

2、以YJV-4*50+1*25为例,表示的是4根50mm2和1根25mm2的电力电缆,它的总面积大约是250mm2左右,其直径就应该是8.9*2=17.8mm,直径70的管足够了。

关键词: 电缆 套管

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