Complete filter units for radio interference suppression - Part 2-1: Blank detail specification - Passive filter units for electromagnetic interference suppression - Filters for which safety tests are required (assessment level D/DZ) (IEC 60939-2-1:2004); German version EN 60939-2-1:2004
无线电干扰抑制用完整滤波装置.第2-1部分:空白详细规范.电磁干扰抑制用无源滤波装置.要求进行安全试验的滤波器(评定水平D/DZ)(IEC 60939-2-1-2004);德文版EN 60939-2-1:2004