IEC 61850-7-4:2010

Communication networks and systems for power utility automation - Part 7-4: Basic communication structure - Compatible logical node classes and data object classes

IEC TR 61850-90-1:2010

Communication networks and systems for power utility automation - Part 90-1: Use of IEC 61850 for the communication between substations

IEC 61850-6:2009

Communication networks and systems for power utility automation - Part 6: Configuration description language for communication in electrical substations related to IEDs