DIN IEC 23B-511-CD (1997-09)被替代
Switches For Household And Similar Fixed Electrical Installations - Part 1: General Requirements; Amendments To Iec 60669-1, Clauses 3, 14 And 20 And Amendments, Caused By The Implementation Of Iec 60529
出版：German Institute for Standardisation (Deutsches Institut für Normung)
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