Aging Phenomena and Condition Assessment Method of RTV Anti-pollution Flashover Coating

JIA Boyan; LIU Jie; CHEN Can; WANG Xilin; XU Chi; JIA Zhidong

doi:10.13296/j.1001-1609.hva.2019.09.017

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Aging Phenomena and Condition Assessment Method of RTV Anti-pollution Flashover Coating

更新时间：2025-04-26

- Aging Phenomena and Condition Assessment Method of RTV Anti-pollution Flashover Coating
- High VoltageApparatus Vol. 55, Issue 9, Pages: 126-133(2019)
- 作者机构：
  
  1. 国网河北省电力公司电力科学研究院
  2. 清华大学深圳研究生院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2019.09.017
  CLC： TM215.2
- Published：2019
- 稿件说明：
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[1]贾伯岩,刘杰,陈灿,王希林,徐驰,贾志东.室温硫化硅橡胶防污闪涂料老化分析及评估方法研究[J].高压电器,2019,55(09):126-133.

JIA Boyan, LIU Jie, CHEN Can, et al. Aging Phenomena and Condition Assessment Method of RTV Anti-pollution Flashover Coating[J]. High voltageapparatus, 2019, 55(9): 126-133.
[1]贾伯岩,刘杰,陈灿,王希林,徐驰,贾志东.室温硫化硅橡胶防污闪涂料老化分析及评估方法研究[J].高压电器,2019,55(09):126-133. DOI： 10.13296/j.1001-1609.hva.2019.09.017.

JIA Boyan, LIU Jie, CHEN Can, et al. Aging Phenomena and Condition Assessment Method of RTV Anti-pollution Flashover Coating[J]. High voltageapparatus, 2019, 55(9): 126-133. DOI： 10.13296/j.1001-1609.hva.2019.09.017.

摘要

RTV防污闪涂料是电力系统中广泛采用的防污措施

能够有效提高电力系统外绝缘耐污性能。但作为一种高分子材料

RTV涂料的耐候性并不理想

在长期运行中可能出现起皮、脱落、粉化等现象进而影响耐污性能。文中以同一厂家、不同运行环境下的RTV防污闪涂料样品作为研究对象

分析了涂料的性能指标及微观结构变化情况。分析发现

RTV防污闪涂料在运行后会出现有机基团含量下降、二氧化硅成分增加等现象

且高温高湿环境中样品的老化更为严重。研究表明

老化后的RTV防污闪涂料热稳定性下降

有机组分减少

利用X射线衍射分析能够识别RTV防污闪涂料中的二氧化硅成分变化

可以用于防污闪涂料的状态评估。

Abstract

Room temperature vulcanized（RTV）silicone rubber has been widely used as anti-pollution flashover coating in power system.During long-term operation

aging phenomena such as peeling off

color fading and chalking could occur

hence leading to the loss of anti-pollution performance.In this paper

RTV coating used in different environments are sampled and test results show that reduction of organic functional group and increase ofobserved.It is concluded that thermal stability and organic component decreases when RTV coating ages and X-ray diffraction analysis could be applied for its condition assessment.

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Related Institution

State Grid Jiangxi Electric Power Research Institute

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