Insulators for overhead lines with a nominal voltage above 1000 V - Ceramic or glass insulator units for d.c. systems - Definitions, test methods and acceptance criteria
标称电压高于1000 V的架空绝缘子 - 陶瓷或玻璃绝缘子单元 系统 - 定义 测试方法和验收标准
Is applicable to string insulator units of ceramic material or glass for use on d.c. overhead power lines with a nominal voltage greater than 1 000 V.
This standard specifies:
-the characteristics of insulators;
-the conditions under which the specified values of these characteristics shall be verified;
-acceptance criteria