期刊论文

Analysis of Equipotential Operation Mode of Live Working on Small Angle Tower of ±800 kV Transmission Line

中文

高压电器

1001-1609

2019

55

9

179-186

10.13296/j.1001-1609.hva.2019.09.024

______________________________ 收稿日期：2019⁃01⁃05； 修回日期：2019⁃03⁃09 基金项目：国家自然科学基金资助课题(50977003)；电力与交通安全监控及节能技术教育部工程研究中心基金(2010#03)。 Project Supported by the National Natural Science Foundation of China(50977003)，Power and Traffic Safety Monitoring and Energy Saving Engineering Research Center of Ministry of Education Fund(2010#03).

本校为第一机构

为确保±800 kV直流输电线路带电作业的安全可靠,文中结合工程实际,搭建直流输电线路小转角塔等比例模型,并使用ANSOFT软件对吊篮法和软梯法两种不同作业方式下人体体表场强的大小进行了计算,分析并得出带电作业人员进出等电位过程中宜推荐的方式和路径,进而确定了带电作业人员应采取的安全防护措施。结果表明:采用吊篮法进出等电位过程中,作业人员体表平均场强相比软梯法更小,综合作业方式的劳累程度和可操作性,推荐作业人员采用吊篮法的方式进出等电位;作业人员进出等电位的过程中应穿戴屏蔽效率为60 dB、配有金属丝面罩的直流特高压专用屏蔽服。以上结论能为±800 k V直流输电线路小转角塔带...

In order to ensure the safe of live working of ±800 kV DC transmission line, combined with the engineering practice, an equal scale model of small angle tower for HVDC transmission lines is constructed. The values of field strength of the body surface in two different operation modes are calculated by using ANSOFT software. The recommended methods and paths in the process of equipotential handling are analyzed and obtained, and then the safety measures should be taken by the electrified operators. The results show that when using a hanging bas...