GB/T 19443-2017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国家标准
英文:Insulators for overhead lines with a nominal voltage above 1500V—Ceramic or glass insulator units for d.c. systems—De...
英文:Insulators for overhead lines with a nominal voltage above 1500V—Ceramic or glass insulator units for d.c. systems—De...