Insulators for overhead lines with a nominal voltage above 1 000 V - Ceramic insulators for AC systems - Characteristics of insulator units of the long rod type (IEC 60433:2021); German version EN IEC 60433:2021
标称电压高于1000V的架空线路用绝缘子.交流系统用陶瓷绝缘子.长杆型绝缘子单元的特性(IEC 60433-2021);德国版本EN IEC 60433:2021