电力系统保护与控制2017，Vol.45Issue(24)：158-162,5.DOI:10.7667/PSPC161880
高海拔地区220kV输电线路带电作业安全距离技术研究
Research on security distance of live working on 220 kV transmission line at high altitudes
摘要
Abstract
Experimental study on safety distance of live working is carried out in high-altitude areas for 220 kV transmission line in order to supply technical base for live overhaul and maintenance of 220 kV line and guarantee safe operation of live working.Switching impulse discharge characteristics tests of live working in different working positions of trim-size tower for 220 kV transmission line are performed in Yangbajing,Tibet (4300 m),Wulan,Qinghai (3000 m),Xiaowan,Qinghai (2200 m) respectively.The discharge characteristic curves under different work conditions are given.According to the above test results and the existing research on low altitude areas for 220 kV transmission line live working,the required live working minimum safety distance and complex gap within the range of altitude 3000 ～ 5500 m for 220 kV transmission line are calculated and analyzed by combining with the common altitude correction methods and the calculation of hazard scale.The results of this experimental investigation provide technical reference for engineering design and live working of 220 kV transmission line.关键词
高海拔/220 kV/带电作业/最小安全距离/组合间隙Key words
high altitudes/220 kV/live working/minimum safe distance/complex gap引用本文复制引用
王炳强,岳嵩,吴元香,丁玉剑,张志鹏,侯田钰,韩建良..高海拔地区220kV输电线路带电作业安全距离技术研究[J].电力系统保护与控制,2017,45(24):158-162,5.基金项目
国家电网科技项目“高海拔地区输电线路带电作业试验研究与应用” （）
