GB/T 34937-2017
ActiveInsulators for overhead lines—Composite suspension and tension insulators for d.c.systems with a nominal voltage greater than 1500 V—Definitions, test methods and acceptance criteria
架空线路绝缘子 标称电压高于1500 V直流系统用悬垂和耐张复合绝缘子 定义、试验方法及接收准则