BS EN 61109:2008
架空线用绝缘子.标称电压大于1000V的交流系统用复合悬挂及拉伸绝缘子.定义、试验方法和验收标准
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