Resistance welding equipment - Transformers - General specifications applicable to all transformers (ISO 5826:2014)
Edition 2014-07-29

Resistance welding equipment - Transformers - Integrated transformers for welding guns (ISO 10656:2016, Corrected version 2016-08)
Edition 2021-06-02

OPTICS AND OPTICAL INSTRUMENTS. OPHTHALMIC OPTICS. FORMERS. (ISO 11380:1994).
Edition 1996-10-07

Resistance welding equipment - Transformers - Integrated transformer-rectifier units for welding guns operating at 1000 Hz (ISO 22829:2017)
Edition 2018-02-28

Aerospace series- Elements of electrical and optical connection- Test methods- Part 704: Electrical elements- Measurement of turns ratio on a transformer used in a coupler. (Endorsed by AENOR in April of 2002.)
Edition 2002-04-01

Railway applications - Fixed installations - Particular requirements for a.c. switchgear - Part 3-2: Measurement, control and protection devices for specific use in a.c. traction systems - Current transformers
Edition 2016-12-07

Railway applications - Fixed installations - Particular requirements for a.c. switchgear - Part 3-3: Measurement, control and protection devices for specific use in a.c. traction systems - Voltage transformers
Edition 2016-12-07

Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for liquid filled transformers - Part 1: General requirements for bushings
Edition 2015-12-23

Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for liquid filled transformers - Part 2: Requirement for bushing components
Edition 2015-12-23

Bushings above 1 kV up to 52 kV and from 250 A to 3,15 kA for liquid filled transformers - Part 3: Requirements for bushing fixations
Edition 2015-12-23