500kV葛双一回复合绝缘子芯棒裂断原因分析  

ANALYSIS OF A POLYMERIC INSULATOR CORE FRACTURE ON 500 kV GE-SHUANG No.1 TRANSMISSION LINE

作　　者：谭章英[1] 舒先民 马建国[1] 尹正来 

机构地区：[1]湖北省电力试验研究所,湖北省武汉市430077 [2]湖北省超高压输变电局,湖北省武汉市430050

出　　处：《电网技术》2001年第1期67-68,72,共3页Power System Technology

摘　　要：通过对一起复合绝缘子芯棒断事故特征分析和同期运行在 5 0 0 k V输电线路上的复合绝缘子抽样试验 ,初步判断复合绝缘子芯棒断裂原因属酸蚀脆断 ,并据此提出防止类似事故发生的措施 ,即厂商应改进金具接头界面的密封工艺并注意复合绝缘子芯棒的抗蚀性能 。Through the analysis on the features of fractured core of polymeric insulator and the sampling test of polymeric insulators operating on 500kV transmission line, it is roughly ascertained that the reason of the core fracture of polymeric insulator is brittle fracture caused by acid erosion. On the basis of this conclusion, the countermeasures to prevent similar failures are put forward. The manufacturers must improve the sealing technology for the interface of fitting junction and pay attention to the corrosion proof capability ofthe material for core. The designers have to improve the technical parameters of polymeric insulators.

关 键 词：复合绝缘子 芯棒 断裂 防蚀 

分 类 号：TM216.07[一般工业技术—材料科学与工程] TM726[电气工程—电工理论与新技术]