±500kV同塔双回输电线路带电作业最小组合间隙探究  

Study on Minimum Combination Gap of Live-line Work on ±500 kV Double-circuit DC Transmission Line on Same Tower

作　　者：覃平[1] 黄荣海[1] 刘宝龙[1] 凌铸 

机构地区：[1]中国南方电网有限责任公司超高压输电公司南宁局,南宁530029

出　　处：《广西电力》2016年第3期37-41,共5页Guangxi Electric Power

摘　　要：为确保作业人员进入作业位置的通道的安全可靠性,对采用吊篮法进行±500 k V同塔双回直流输电线路带电作业时的进入方式和组合间隙进行探究。通过开展带电作业组合间隙试验,得到不同海拔高度和各种工况下的最小组合间隙。试验结果表明:采用吊篮法从导线内侧塔身处进入等电位的方式满足带电作业安全性要求;采用吊篮法进行带电作业,不同海拔高度和工况下的最小组合间隙不同,且随着海拔高度递增,相同工况下最小组合间隙值也相应递增。In order to guarantee the safety and reliability of the channel through which working personnel entered the working position. Entering modes during the live-line work on ±500 kV double-circuit DC transmission line by using hanging baskets method and combination gaps are studied. By testing live-line work combination gap, minimum combination gaps under different altitudes and all kinds of working conditions are obtained. Tests results show that the mode of entering equipotential from the inside of conductor at tower body by using hanging baskets method can satisfy the safety requirement of live-line work. There are different minimum combination gaps under different altitudes and working conditions when doing liveline work by using hanging baskets method, and along with the increasing of altitude the value of minimum combination gap is increasing correspondingly under the same working condition.

关 键 词：±500 kV直流输电 同塔双回 带电作业 最小组合间隙 

分 类 号：TM84[电气工程—高电压与绝缘技术]