International Electrotechnical Commission <br/><br/>
IEC 61850-7-4:2010/AMD1:2020; Amendment 1 - Communication networks and systems for power utility automation - Part 7-4: Basic communication structure - Compatible logical node classes and data object classes 

 - Ed.2.0 
 - Geneva  IEC  2020 
 - 878p. 
 - 0