Analysis of Typical Ice Accidents of Transmission Lines and Preventing Techniques

WANG Shao-hua

doi:10.13296/j.1001-1609.hva.2010.10.019

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Analysis of Typical Ice Accidents of Transmission Lines and Preventing Techniques

更新时间：2025-04-26

- Analysis of Typical Ice Accidents of Transmission Lines and Preventing Techniques
- High VoltageApparatus Vol. 46, Issue 10, Pages: 85-89(2010)
- 作者机构：
  
  浙江省电力试验研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2010.10.019
  CLC： TM75
- Published：2010
- 稿件说明：
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[1]王少华.输电线路典型覆冰事故及防治技术分析[J].高压电器,2010,46(10):85-89.

WANG Shao-hua. Analysis of Typical Ice Accidents of Transmission Lines and Preventing Techniques[J]. High voltageapparatus, 2010, 46(10): 85-89.
[1]王少华.输电线路典型覆冰事故及防治技术分析[J].高压电器,2010,46(10):85-89. DOI： 10.13296/j.1001-1609.hva.2010.10.019.

WANG Shao-hua. Analysis of Typical Ice Accidents of Transmission Lines and Preventing Techniques[J]. High voltageapparatus, 2010, 46(10): 85-89. DOI： 10.13296/j.1001-1609.hva.2010.10.019.

摘要

输电线路覆冰严重威胁了电力系统的运行安全。在总结中国输电线路典型覆冰事故的基础上

对中国输电线路覆冰事故特点、事故原因及防治技术措施进行了总结分析。分析结果表明:中国输电线路覆冰事故具有覆盖面积大、机械故障和电气故障并存等特点;严重覆冰引起过荷载、不平衡张力、覆冰闪络及导线舞动是造成覆冰事故的主要原因;防冰除冰、防覆冰闪络及防覆冰舞动是防治输电线路覆冰事故的主要技术方向。

Abstract

Atmospheric ice deposits on transmission lines are of great danger to the security of service of electrical power system.Based on several typical severe ice accidents occurring in China

this paper summarizes and analyzes the characteristics

reasons and preventing techniques of severe ice accidents.The results show that the ice accidents occurring in China have such characteristics as large coverage area

coexistence of mechanical failures and electrical failures

etc.Overload caused by the severe icing

tensile force difference caused by asymmetrical icing or asynchronous ice shedding

ice flashovers

and conductor galloping are the main reasons for ice accidents.Anti-icing

anti-flashovers

and anti-galloping are the main technical orientation of preventing transmission lines from severe ice accidents.

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