DIN IEC/TS 62271-304 (2017-01)现行
High-voltage Switchgear And Controlgear - Part 304: Classification Of Indoor Enclosed Switchgear And Controlgear For Rated Voltages Above 1 Kv Up To And Including 52 Kv Related To The Use In Severe Climatic Conditions (iec 17c/648/cd:2016)
出版：Verband Deutscher Elektrotechniker
专家解读视频
