电线在有风时实际承受的荷载应为水平与垂直荷载的相量和,无冰有风为γ6,有冰有风为γ7。 LGJ-300/50,γ3=(2.73+3.40)X1O-2=...

作者: rantiku 人气: - 评论: 0
问题 电线在有风时实际承受的荷载应为水平与垂直荷载的相量和,无冰有风为γ6,有冰有风为γ7。 LGJ-300/50,γ3=(2.73+3.40)X1O-2=6.13X1O-2 N/(m*mm2),35m/s风,γ5=2.1X.10-2 N/(m*mm2),其γ7为()。
选项 A.6.0X1O-2; B.6.2X10-2; C.6.48X1O-2; D.6.8X10-2。
答案 C
解析 根据电力工程高压送电线线路设计手册》(第二版)。

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