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上海用喷火无人机清除带电导线异物

2017-08-25 08:32:16   中国青年网

本报讯(记者钱培坚 通讯员李海南)“稳住、稳住,喷油、点火!”“塑料薄膜烧掉下来了!”8月16日下午,国网上海检修公司成功应用喷火无人机清除了飘挂在运行中的±500千伏宜华直流线路上的塑料薄膜,确保了迎峰度夏期间这条“西电东送”大动脉的安全稳定运行。这也是喷火无人机技术在上海电网的首次应用,极大地提升了输电线路异物隐患消除的效率。

线路巡检人员当天对宜华线巡视时,发现一条长约5米的塑料薄膜飘挂在2460号至2461号塔间的导线上,而且塑料薄膜距该线路同杆架设的接地极线路很近,在大风的吹拂下,薄膜随时可能飘挂到接地极线路上造成单极接地故障,因此情况十分紧急。

考虑到塑料薄膜飘挂在该线档距正中间,距两端杆塔较远,采用常规带电作业方法清理十分困难,而且作业风险大、耗时长。为了能快速安全地消除隐患,国网上海检修公司决定采用无人机喷火技术带电处置,将塑料薄膜清除。

接到任务后,国网上海检修公司“鹰眼”青年无人机小组立即携带喷火无人机赶至隐患现场。经短暂的安装调试,无人机轻巧升空,迅速贴近塑料薄膜的悬挂点。命令下达后,湛蓝的天空中,一道火舌从无人机“口中”喷出,塑料薄膜瞬间燃烧起来并迅速脱离地线,掉落地面。整个清理过程仅耗时20分钟左右,而传统带电作业至少需要两个小时。

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