220kV坪核线复合绝缘子芯棒脆断原因分析及对策  

Cause study and countermeasures for core rod brittle fracture of suspension composite insulators on 220kV Ping-He line

作　　者：郑成山 马刚 

机构地区：[1]大亚湾核电运营管理有限公司生产部,广东深圳518124

出　　处：《湖南电力》2008年第6期38-40,共3页Hunan Electric Power

摘　　要：通过对220 kV坪核线复合绝缘子芯棒脆断造成相间短路事故的原因分析,指出其主要原因是耐张绝缘子使用单串且没有安装均压环连接方式的设计不合理,以及早期生产的复合绝缘子存在产品制造缺陷,芯棒不耐酸等原因所致。提出采用新工艺及材料制造的复合绝缘子,采用双串带均压环设计,预防芯棒脆断及造成掉线相间短路事故。The interphase short circuit caused by core rod brittle fracture of suspension composite insulators on 220 kV Ping - He line was analyzed. Strain insulators with single string, connection design without grading ring, early production composite insulators with manufacturing defects, and acid nonresistant core rod are main eauses responsible for the fault. Suggestions that produce composite insulator with new process and design insulator with double strings and grading ring were given to prevent core red from brittle fracture and interphase short circuit.

关 键 词：复合绝缘子 芯棒 脆断 

分 类 号：TM216[一般工业技术—材料科学与工程]