某单回220kV架空送电线路,采用两分裂LGJ300/40导线,气象条件为:若线路某气象条件下自重力比载为0.033N/m﹒mm2,冰自重比载为0.040...

作者: rantiku 人气: - 评论: 0
问题 某单回220kV架空送电线路,采用两分裂LGJ300/40导线,气象条件为:
选项 若线路某气象条件下自重力比载为0.033N/m﹒mm2,冰自重比载为0.040N/m﹒mm2,风荷比载为0.020N/m﹒mm2,综合比载为0.0757N/m﹒mm2,导线水平应力为115N/mm2,计算在该气象条件下档距为400m的最大垂弧为: A 13.2m B 12.7m C 10.4m D 8.5m
答案 A
解析

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