GB/T 19443

Insulators for overhead lines with a nominal voltage above 1500V—Ceramic or glass insulator units for d.c. systems—Definitions,test methods and acceptance criteria

标称电压高于1500V的架空线路用绝缘子 直流系统用瓷或玻璃绝缘子串元件 定义、试验方法及接收准则