IEC 60433:2021 RLV 标称电压1000伏以上架空线路绝缘子 交流系统用陶瓷绝缘子 长棒形绝缘子单元特性 Insulators for overhead lines with a nominal voltage above 1000 V - Ceramic insulators for AC systems - Characteristics of insulator units of the long rod type 标准号：IEC 60433:2021 RLV 发布日期：2021-01-12
IEC 60433:2021 RLV