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

ZHOU Chenmeng; LUO Richeng; WU Dong; YANG Yaqian; LI Zhiqi; PAN Junwen; YUAN Liping; ZOU Ming

doi:10.13296/j.1001-1609.hva.2019.09.024

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

更新时间：2025-04-26

- Analysis of Equipotential Operation Mode of Live Working on Small Angle Tower of ±800 kV Transmission Line
- High VoltageApparatus Vol. 55, Issue 9, Pages: 179-186(2019)
- 作者机构：
  
  1. 长沙理工大学电气与信息工程学院
  2. 国网山东省电力公司淄博供电公司
  3. 国网湖北省电力有限公司随州供电公司
  4. 国网湖南省电力公司检修公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.09.024
  CLC： TM75
- Published：2019
- 稿件说明：
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[1]周晨梦,罗日成,吴东,杨雅倩,李智琦,潘俊文,袁丽苹,邹明.±800 kV输电线路小转角塔带电作业进出等电位方式分析[J].高压电器,2019,55(09):179-186.

ZHOU Chenmeng, LUO Richeng, WU Dong, et al. Analysis of Equipotential Operation Mode of Live Working on Small Angle Tower of ±800 kV Transmission Line[J]. High voltageapparatus, 2019, 55(9): 179-186.
[1]周晨梦,罗日成,吴东,杨雅倩,李智琦,潘俊文,袁丽苹,邹明.±800 kV输电线路小转角塔带电作业进出等电位方式分析[J].高压电器,2019,55(09):179-186. DOI： 10.13296/j.1001-1609.hva.2019.09.024.

ZHOU Chenmeng, LUO Richeng, WU Dong, et al. Analysis of Equipotential Operation Mode of Live Working on Small Angle Tower of ±800 kV Transmission Line[J]. High voltageapparatus, 2019, 55(9): 179-186. DOI： 10.13296/j.1001-1609.hva.2019.09.024.

摘要

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电作业的顺利开展及安全防护措施的制定提供理论依据。

Abstract

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 basket for equipotential operation

the average intensity of workers body is smaller than the soft ladder way

according to the degree of fatigue and operability of operation methods

it is recommended that operators use the hanging basket method to enter and exit equipotential;When performing equipotential operation

the operator shall wear a direct current ultra-high voltage shielding shield with a shielding efficiency of 60 dB and a metal wire mask.The above conclusions provide a theoretical basis for the live working on the small angle tower of±800 kV DC transmission line.

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