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上海电网首用喷火无人机清除高压线飘挂物

2017-08-18 00:22:01   中国青年网

在湛蓝的天空中,无人机喷出红色的火焰,清除了高压线上的飘挂物。

8月16日,上海电网首次应用了喷火无人机技术。

当天,在上海沪青平公路附近,线路巡检人员对宜华线巡视时,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。 500千伏宜华直流线路正在运行中,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,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,然后脱离地线,掉落地面,整个清理过程仅耗时约20分钟。

喷火无人机喷出一道火舌,清除高压线上的飘挂物。

“若是采用传统带电作业方法,需要登塔消缺(处理设备缺陷),作业时间至少需要两个小时,使用无人机喷火清除线路飘挂物,既缩短了消缺时间,也大大降低了工作的劳动强度。而且,每次喷火时间很短,着火点最高温度并不会对线路本体造成任何损伤。”无人机机长王欣庭告诉澎湃新闻记者。

运用喷火无人机清除线路飘挂物,对操控人员的驾驶能力有着极高要求。电磁场对无人机信号的干扰、户外阵风及飞控手的心里素质,都会影响整个操作过程的成功率。

王欣庭表示,为了确保整个作业过程不对运行线路产生威胁,“鹰眼”小组成员此前开展过数十次模拟演练,不断改进无人机喷火装置,提高小组成员之间的操控默契。

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