Power transformers - Additional European requirements: Part 2-1 Medium power transformer - General requirements
Edition 2021-01-20

Power transformers - Additional European requirements - Part 2-3: Medium power transformer - Accessories
Edition 2023-03-29

Power transformers - Additional European requirements - Part 2-4: Medium power transformer - Special tests
Edition 2023-03-29

Power transformers - Additional European requirements - Part 2-5: Medium power transformer - Single phase
Edition 2022-10-26

Power transformers - Additional European requirements - Part 2-6: Medium power transformers - Non-conventional magnetic steel technology
Edition 2023-03-29

Power transformers - Additional European requirements: Part 3-1 Large power transformer - General requirements
Edition 2020-12-16

Power transformers - Additional European requirements - Part 3-4: Large power transformer - Special tests for corrugated tank and radiators
Edition 2023-03-29

Electric strength of insulating materials - Test methods - Part 2: Additional requirements for tests using direct voltage (Endorsed by AENOR in October of 2014.)
Edition 2014-10-01

Electric strength of insulating materials - Test methods - Part 3: Additional requirements for 1,2/50 µs impulse tests (Endorsed by AENOR in October of 2014.)
Edition 2014-10-01

ELECTRICAL MEASURING INSTRUMENTS. X-T RECORDERS. PART 2: RECOMMENDED ADDITIONAL TEST METHODS.
Edition 1997-08-22