复合绝缘子用耐酸芯棒的脆断性能研究  

Study on Brittle Fracture of Boron-Free FRP Rod of Composite Insulator

作　　者：梁曦东[1] 戴建军[1] 

机构地区：[1]电力系统及发电设备控制与仿真国家重点实验室(清华大学电机系),北京市海淀区100084

出　　处：《电网技术》2006年第12期42-46,共5页Power System Technology

基　　金：国家杰出青年基金资助项目(50025720)。~~

摘　　要：研究了复合绝缘子用耐酸芯棒的性能,对4种芯棒在不同浓度的硝酸中的耐腐蚀性能进行了长期试验。结果表明,各项指标都符合应力腐蚀试验标准的耐酸芯棒其耐腐蚀性能也存在较大差别,性能好的耐酸芯棒即使在非常严酷的条件下也很难发生脆断。为适应不同工程应用的要求,作者根据试验结果讨论了选择优良耐酸芯棒的试验方法。The performance of boron-free fiber reinforced plastics （FRP） rods for composite insulators are researched; a long-term test for resistance to brittle fracture of four types of boron-free FRP rods in nitric acid with different concentrations is investigated. Test results show that the resistance to stress corrosion cracking （SCC） of different types of boron-free rod passing through the stress corrosion testing criteria varies greatly. For boron-free FRP rod with best resistance to SCC, it is hard to be brittle-fractured even in severe circumstance. To suit for the different requirement of engineering application, based on the test results the authors present an improved method on the selection of excellent boron-free FRP rod.

关 键 词：复合绝缘子 耐酸芯棒 脆断 高压绝缘 

分 类 号：TM85[电气工程—高电压与绝缘技术]