交流特高压复合横担对带电作业安全影响

doi:10.11930/j.issn.1004-9649.201905099

中国电力 ›› 2019, Vol. 52 ›› Issue (12): 54-61.DOI: 10.11930/j.issn.1004-9649.201905099

交流特高压复合横担对带电作业安全影响

雷兴列, 彭勇, 肖宾, 刘庭, 刘凯, 张准

中国电力科学研究院有限公司电网环境保护国家重点实验室, 湖北武汉 430074

收稿日期:2019-05-21 修回日期:2019-08-16 发布日期:2019-12-05
作者简介:雷兴列(1987-),男,工程师,从事输电线路运行维护、带电作业技术研究,Email:leixinglie_2006@126.com
基金资助:
国家电网公司科技项目（特高压交流新型复合横担绝缘子关键技术研究，GYW17201700029）

Study on the Impact of UHV AC Composite Cross-arms on Live Working Safety

LEI Xinglie, PENG Yong, XIAO Bin, LIU Ting, LIU Kai, ZHANG Zhun

China Electrical Power Research Institute, State Key Laboratory of Power Grid Environmental Protection, Wuhan 430074, China

Received:2019-05-21 Revised:2019-08-16 Published:2019-12-05
Supported by:
This work is supported by the Science and Technology Project of SGCC (Research on Key Technologies of New Composite Cross-arm Insulator for UHV AC, No.GYW17201700029)

摘要/Abstract

摘要： 交流特高压复合横担结构与常规塔型存在较大差异，对带电作业安全距离、作业人员进出等电位方式以及电场防护要求造成较大影响，通过试验和仿真计算分析了交流特高压复合横担对带电作业安全的影响。研究结果表明：交流特高压复合横担线路带电作业最小安全距离、最小组合间隙距离分别为6.3 m、6.5 m，比常规塔型要求分别高0.3 m、0.4 m；交流特高压复合横担线路可采用沿复合横担进入等电位的方式；沿交流特高压复合横担进出等电位时，作业人员体表电场强度最大值出现在头部、肩膀区域，且比常规塔型线路情况高，带电作业过程中应对该区域加强防护。其研究成果可为交流特高压复合横担线路带电作业安全工作的开展提供技术支撑。

关键词: 特高压, 复合横担, 带电作业, 安全距离, 作业方式, 电场防护

Abstract: The UHV AC composite cross-arm structure, quite different from the conventional towers, has a significant impact on the safety distance of live working, the mode of entering or exiting equipotential, and the electric field protection requirements of workers. This paper analyzes the influence of UHV AC composite cross-arm on the safety of live working through experiments and simulation calculations. As the simulation results show, the minimum approach distance and the minimum combined gap distance of live working on the UHV composite cross-arm line are 5.6 m and 6.0 m respectively, which are 0.3 m and 0.4 m higher than the conventional tower requirements. For the power line on the UHV AC composite cross-arm, we can enter the equipotential along the composite cross-arm. When entering or exiting equipotential along the UHV AC composite cross-arm, the workers have the maximum electric field strength on their heads and shoulders, with a magnitude being higher than that of the conventional tower. This areas are therefore should be protected specially during live working. The results of this paper can provide a technical support for the safety of live working on UHV AC composite cross-arm lines.

Key words: UHV, composite cross-arm, live working, safety distance, working mode, electric field protection

中图分类号:

TM84

雷兴列, 彭勇, 肖宾, 刘庭, 刘凯, 张准. 交流特高压复合横担对带电作业安全影响[J]. 中国电力, 2019, 52(12): 54-61.

LEI Xinglie, PENG Yong, XIAO Bin, LIU Ting, LIU Kai, ZHANG Zhun. Study on the Impact of UHV AC Composite Cross-arms on Live Working Safety[J]. Electric Power, 2019, 52(12): 54-61.

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https://www.electricpower.com.cn/CN/Y2019/V52/I12/54

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交流特高压复合横担对带电作业安全影响

Study on the Impact of UHV AC Composite Cross-arms on Live Working Safety

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交流特高压复合横担对带电作业安全影响

Study on the Impact of UHV AC Composite Cross-arms on Live Working Safety

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