Composite station post insulators for substations with a.c. voltages greater than 1000 V up to 245 kV - Definitions, test methods and acceptance criteria (IEC 62231:2006); German version EN 62231:2006
交流电压大于1000V至245kV的变电站用复合站用支柱绝缘子.定义、试验方法和验收标准(IEC 62231-2006);德文版EN 62231:2006