This part of IEC 61850 applies to substation automation systems (SAS). It defines the communication between intelligent electronic devices (IECs) in the substation and the related system requirements. This specification of this part pertain to the system and project management with respect.to : - the engineering process and its supporting tools. - the life cycle of the overall system and its IEDs. - the quality assurance beginning with the development stage and ending with discontinuation decommissioning of the SAS and its IEDs. The requirements of the system and project management process and of special supporting tools for engineering and testing and described.

• Year of Declaration: 2002
• Reference: IEC 61850-4
• Number of Pages: 59
• Code: GYS IEC 61850-4
• Version: First edition 2002
• ICS Number: 33.180.20