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电网技术  2006 

甘肃炳-和-银330kV输电线路带电作业试验研究

, PP. 77-81

Keywords: 330,kV输电线路,带电作业,安全距离,危险率,高电压绝缘技术

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Abstract:

采用真型模拟塔对甘肃炳-和-银330kV三分裂输电线路工程的ZMS1型猫头直线塔进行了4种带电作业方式的试验研究。通过模拟人在塔窗中不同位置时的操作冲击放电电压以及修正的高海拔参数,校核了各种带电作业方式的危险率和安全距离。研究表明,有3种带电作业方式是安全可行的①人乘绝缘斗从塔侧进入中相导线;②人沿水平硬梯从塔侧进入中相导线;③人通过软梯从中相导线悬挂点以外3m处由地面向上进入中相,然后沿中相导线进入中相悬挂点。在该线路上进行带电作业时,推荐相对地最小安全距离不小于2.1m。

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