Thermal Aging Characteristics Analysis of HTV Silicone Rubber Composite Insulator Shed

CHENG Yang; LYU Li; XIA Lingzhi; HUANG Hongfei; GUO Kaihang; REN Chengyan

doi:10.13296/j.1001-1609.hva.2024.04.007

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Thermal Aging Characteristics Analysis of HTV Silicone Rubber Composite Insulator Shed

Research and Application of Advanced Electrical Materials Under the Background of Dual Carbon Strategy | 更新时间：2025-04-26

- Thermal Aging Characteristics Analysis of HTV Silicone Rubber Composite Insulator Shed
- High Voltage Apparatus Vol. 60, Issue 4, Pages: 49-55(2024)
- 作者机构：
  
  1.国网安徽省电力有限公司电力科学研究院，合肥　 230601
  2.中国科学院电工研究所等离子体科学和能源转化北京市国际科技合作基地，北京　 100190
  3.中国科学院大学，北京　 100049
- 作者简介：
- 基金信息：
  
  Anhui Natural Science Foundation Energy Internet Joint Fund(2108085UD14);National Natural Science Foundation of China(52177163;51977202)
- DOI：10.13296/j.1001-1609.hva.2024.04.007
  CLC：
- Received：21 November 2023，
  
  Revised：25 January 2024，
  
  Published：16 April 2024
- 稿件说明：
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CHENG Yang, LYU Li, XIA Lingzhi, et al. Thermal Aging Characteristics Analysis of HTV Silicone Rubber Composite Insulator Shed[J]. High voltage apparatus, 2024, 60(4): 49-55.
DOI：

CHENG Yang, LYU Li, XIA Lingzhi, et al. Thermal Aging Characteristics Analysis of HTV Silicone Rubber Composite Insulator Shed[J]. High voltage apparatus, 2024, 60(4): 49-55. DOI： 10.13296/j.1001-1609.hva.2024.04.007.

摘要

高温硫化（HTV）硅橡胶复合绝缘子作为架空输电线路的重要组成部分，其在长时间的户外运行中出现的异常发热状态会加剧伞裙的老化，严重时会威胁到输电线路的安全运行。通过对HTV硅橡胶复合绝缘伞裙样品进行480 h的人工热空气老化试验，对样品进行邵氏硬度、水接触角、红外光谱、微观形貌及沿面闪络电压等多项性能参数的测量，分析伞裙样品的热老化特性。研究结果表明，长时间的热老化作用，会加剧伞裙的硬化，降低材料的憎水性。随着热老化时间增加，伞裙样品的老化程度增加，沿面闪络电压先增加后减小。

Abstract

HTV silicone rubber composite insulator is an important part of the overhead transmission line

its abnormal febrile state will aggravate the aging of the shed in

the long-term outdoor operation

which will

in case of serious condition

threaten the safe operation of the transmission line. Through 480 h artificially thermal aging test on the shed samples of the HTV silicone rubber composite insulator and measurement of such multiple performance parameters as Shore hardness

WCA

FTIR

micro topography and surface flashover voltage

the thermal aging characteristics of the sample are analyzed. The study results show that the hardening of the shed can be intensified and the hydrophobicity of the material is reduced after long-term thermal aging. With the increase of thermal aging time

the aging degree of the shed sample increases

and the surface flashover voltage increases first and then decreases.

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