在役绝缘子失效特征与无损检测

在电网各个环境中运行的不同种类绝缘子，长期服役后都会不同程度地产生失效，导致故障事故的发生，对电网可靠性带来了极大地潜在威胁，研究绝缘子的失效特征对于指导绝缘子安全检测具有十分重要的意义。本文基于在役绝缘子种类繁多和结构复杂的特点，分析绝缘子失效特征和损伤部位，提出了利用无损检测技术检测绝缘子损伤缺陷的方法。

Failure Character and Non-destructive Testing of Insulators in Service

In different electrified wire network environments, insulators will rise damages and lead to failureaccidents. It hugely threatens the electrified wire netting dependability. It is necessary to analyze the failure charactersand damage position to guide insulators testing in security. Based on damage character, this paper gives several methodsof NDT . The practical application proves that it is available method to detect the faults of insulators in service .