1. BS EN 61850-4:2011. Communication networks and systems for power utility automation - Part 4: System and project management

2. BS EN 61850-5:2013. Communication networks and systems for power utility automation - Part 5: Communication requirements for functions and device models

3. BS EN 61850-6:2010. Communication networks and systems for power utility automation - Part 6: Configuration description language for communication in electrical substations related to IEDs

4. BS EN 61850-7-1:2011. Communication networks and systems for power utility automation - Part 7-1: Basic communication structure - Principles and models

5. BS EN 61850-7-2:2010. Communication networks and systems for power utility automation - Part 7-2: Basic information and communication structure - Abstract communication service interface (ACSI)

6. BS EN 61850-7-3:2011. Communication networks and systems for power utility automation - Part 7-3: Basic communication structure �â�€�“ Common data classes

7. BS EN 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

8. BS EN 61857-1:2009. Electrical insulation systems �â�€�“ Procedures for thermal evaluation - Part 1: General requirements �â�€�“ Low-voltage

9. BS EN 61857-21:2009. Electrical insulation systems - Procedures for thermal evaluation - Part 21: Specific requirements for general-purpose models - Wire-wound applications

10. BS EN 61858-1:2014. Electrical insulation systems - Thermal evaluation of modifications to an established electrical insulation system (EIS) - Part 1: Wire-wound winding EIS