Through the statistics of defect and fault condition of insulator in recent six years, the defect of insulator and its cause of occurence are analysed, and the feasible preventive is put forwarded.

• 摘要通过统计近6年来的绝缘子缺陷及绝缘子故障情况，分析了绝缘子缺陷及发生绝缘子故障的原因，提出了切实可行的防范措施。