DL/T 860.74-2014 Electric power automation communication network and system part 7-4: basic communication structure compatible logical node class and data class (English Version)
2015DL/T 860.74-2014 Electric power automation communication network and system part 7-4: basic communication structure compatible logical node class and data class
2006DL/T 860.74-2006 Communication networks and systems in substations Part 7-4: Basic communication structure for substation and feeder equipment Compatible logical node classes and data classes