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IEC

PDF Standards IEC 61248-4 Ed. 1.0 b:1996

Transformers and inductors for use in electronic andtelecommunication equipment – Part 4: Sectional specification forpower transformers for switched mode power supplies (SMPS) on thebasis of the capability approval procedure
standard by International Electrotechnical Commission, 06/06/1996

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IEC

PDF Standards IEC 61850-7-4 Ed. 2.0 b:2010

Communication networks and systems for power utility automation – Part 7-4: Basic communication structure – Compatible logical node classes and data object classes
standard by International Electrotechnical Commission, 03/31/2010

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