架空线,档距1000m,悬点高差h=150m,最高气温时导线最低点应力=50N/mm2,垂直比载用悬链线公式,在最高气温时档内线长。 A 1021.6...

作者: rantiku 人气: - 评论: 0
问题 架空线,档距1000m,悬点高差h=150m,最高气温时导线最低点应力=50N/mm2,垂直比载
选项 用悬链线公式,在最高气温时档内线长。 A 1021.67m B 1021.52m C 1000m D 1011.55m
答案 B
解析 由《电力工程高压送电线路手册》第二版P196表3-3-1

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