Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1100 V - Part 2-16: Particular requirements and tests for switch mode power supply units and transformers for switch mode power supply units
Edition 2009-12

Oil-immersed cable connection assemblies for transformers and reactors having highest voltage for equipment Um from 72,5 kV to 550 kV - Part 2: dry-type cable terminations
Edition 2015-10-30

Oil-immersed cable connection assemblies for transformers and reactors having highest voltage for equipment Um from 72,5 kV to 550 kV - Part 1: fluid-filled cable terminations
Edition 2015-10-30

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 2017-04-22

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 2017-04-22

Measuring relays and protection equipment - Part 187-1: Functional requirements for differential protection - Restrained and unrestrained differential protection of motors, generators and transformers
Edition 2021-09

Ferrite cores - Guidelines on dimensions and the limits of surface irregularities - Part 5: EP-cores and associated parts for use in inductors and transformers
Edition 2018-09

Components for low-voltage surge protection - Part 352: Selection and application principles for telecommunications and signalling network surge isolation transformers (SITs)
Edition 2018-03

Components for low-voltage surge protective devices - Part 351: Performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT)
Edition 2017-02

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 2015-10