DIN EN 61850-7-4/A1 (2018-06)现行
Communication networks and systems for power utility automation Part 7-4: Basic communication structure - Compatible logical node classes and data object classes (IEC 57/1644/CDV:2016); English version EN 61850-7-4:2010/FprA1:2016
出版：German Institute for Standardisation (Deutsches Institut für Normung)
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