IEC 62772-2016 带变压器的复合中空核心站后绝缘子 电压大于1000 V 直流电压电压大于1 500 V.定义 测试方法和验收标准
Composite hollow core station post insulators for substations with a.c. voltage greater than 1 000 V and d.c. voltage greater than 1 500 V - Definitions, test methods and acceptance criteria