标准号：IEC 61109:2025
标准名称：Insulators for overhead lines - Composite suspension and tension insulators for a.c. systems with a nominal voltage greater than 1 000 V - Definitions, test methods and acceptance criteria
标准号：IEC 61109:2025
版本：3.0
标准发布组织：IEC
国际组织机构：TC 36
发布日期：2025-02-26