
High-voltage Alternating-current Circuit-breakers - Terms And Definitions
出版:Polish Committee for Standardization

專家解讀視頻
1989 [28/09/1989]
HD 348 : 200S7 - Identical
IEC 60056 : 4.0 - Identical
IEC 60056 : 4.0 - Identical
HD 348:1998 - Identical
IEC 60056 Ed. 4.0 - Identical