GB/T 21429-2008 户外和户内电气设备用空心复合绝缘子 定义、试验方法、接收准则和设计推荐 Composite insulators - Hollow insulators for use in outdoor and indoor electrical equipment - Definitions test methods acceptance criteria and design recommendations
Composite insulators - Hollow insulators for use in outdoor and indoor electrical equipment - Definitions test methods acceptance criteria and design recommendations