110kV/220kV同塔混压四回输电线路带电作业中人体体表场强仿真分析  

Simulation analysis of body surface electromagnetic field in live overhaul of 110 kV/220 kV four-parallel lines on same tower

作　　者：刘夏清[1] 邹德华[1] 李稳[1] 牛捷[1] 李辉[1] 童诚[1] 

机构地区：[1]国家电网湖南省电力公司带电作业中心,湖南长沙410007

出　　处：《电力科学与技术学报》2015年第3期131-136,共6页Journal of Electric Power Science And Technology

摘　　要：线路带电检修作业时,作业人员周围电场及人体表面场强不断变化,在皮肤表面积聚的电荷对人体产生刺激,可能会引发安全事故。利用有限元法,对同塔四回输电线路带电作业时人体体表电场强度进行计算,研究不同作业点和一回线路停电对人体各部位电场分布的影响,计算结果表明:带电作业时的人体靠近导线侧体表的电场强度最大,停电对作业人员脚部场强影响最明显。研究结果对带电作业下采取有效的防护措施以及带电作业方式的改进具有重要的理论指导意义。Under live overhaul of transmission line,the electric field around the operator and field intensity on body surface are changing at all times.The accumulative charge on body surface will stimulate human body,causing security incidents.By utilizing the finite element method,electric field on body surface in the live overhaul of four-parallel lines on the same tower was calculated in this paper.The electric field distribution influences for each part of human body caused by various operation points and one loop line outage were investigated.The calculation results show that the surface field intensity close to the wire side is maximum under live working,and power outages is obviously affect electric field around foot.The simulation results provide important theoretical guidance to safeguard of live overhaul and improvements on the way of live overhaul.

关 键 词：同塔四回 有限元法 电场 带电作业 

分 类 号：TM84[电气工程—高电压与绝缘技术]