Low-voltage switchgear and controlgear assemblies; a method for assessing the short-circuit withstand strength of partially typetested assemblies (PTTA); identical with report IEC 61117:1992
低压开关设备和控制设备组件;评估部分型式试验组件(PTTA)短路耐受强度的方法;与IEC 61117:1992报告相同