Power transformers - Additional European requirements - Part 3-3: Large power transformer - Accessories (english version)
Edition 2023-08-01

Power transformers - Additional European requirements: Part 1-2 Common part - Assessment of energy performance
Edition 2021-10

Power transformers - Additional European requirements - Part 2-5: Medium power transformer - Single phase
Edition 2021-08

Electrical insulation systems - Procedures for thermal evaluation - Part 41: Specific requirements for electrical insulation systems for use in dry-type high-voltage transformers with operating voltages of 1kV and above

IEC 61869-20 : safety requirements of Instrument Transformers for High Voltage applications

Safety of power transformers, power supplies, reactors and similar products - Part 2-1: Particular requirements and tests for separating transformers and power supplies incorporating separating transformers for general applications

Safety of power transformers, power supplies, reactors and combinations thereof - Part 2-2: Particular requirements and tests for control transformers and power supplies incorporating control transformers

Safety of transformers, reactors, power supply units and combinations thereof - Part 2-3: Particular requirements and tests for ignition transformers for gas and oil burners

Safety of transformers, reactors, power supply units and combinations thereof - Part 2-4: Particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers for general applications