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IEC – The company IEC is world-leading organization, which creates and issues International standards for all electrical, electronic and other related technologies known generally as electro-technologies. Wherever, there is electricity and electronics you can find the company IEC, which promotes the safety and performance, the environment, electrical energy efficiency and renewable energy. The company IEC also administers conformity assessment systems, which certify that the equipment, systems or components comply with International Standards of this company.
Power transformers - Part 2: Temperature rise for liquid-immersed transformers
(Transformateurs de puissance - Partie 2: Echauffement des transformateurs immerges dans le liquide)
Standard published on 23.2.2011
Selected format:Power transformers - Part 20: Energy efficiency
Standard published on 30.1.2017
Selected format:Corrigendum 1 - Power transformers - Part 20: Energy efficiency
Correction published on 12.1.2018
Selected format:Power transformers - Part 21: Standard requirements, terminology, and test code for step-voltage regulators
Standard published on 7.12.2018
Selected format:
Power transformers - Part 22-1: Power transformer and reactor fittings - Protective devices
(Transformateurs de puissance - Partie 22-1: Accessoires pour transformateurs de puissance et bobines d´inductance - Dispositifs de protection)
Standard published on 29.1.2019
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Power transformers - Part 22-2: Power transformer and reactor fittings - Removable radiators
(Transformateurs de puissance - Partie 22-2: Accessoires pour transformateurs de puissance et bobines d´inductance – Radiateurs detachables)
Standard published on 16.1.2019
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Power transformers - Part 22-3: Power transformer and reactor fittings - Insulating liquid to air heat exchangers
(Transformateurs de puissance - Partie 22-3: Accessoires pour transformateurs de puissance et bobines d’inductance - Aerorefrigerants)
Standard published on 8.3.2019
Selected format:
Power transformers - Part 22-4: Power transformer and reactor fittings - Insulating liquid to water heat exchangers
(Transformateurs de puissance - Partie 22-4: Accessoires pour transformateurs de puissance et bobines d’inductance - Hydrorefrigerants)
Standard published on 8.3.2019
Selected format:
Power transformers - Part 22-5: Power transformer and reactor fittings - Electric pumps for transformers
(Transformateurs de puissance - Partie 22-5 : Accessoires pour transformateurs de puissance et bobines d’inductance - Electropompes pour transformateurs)
Standard published on 18.1.2021
Selected format:
Power transformers - Part 22-6: Power transformer and reactor fittings - Electric fans for transformers
(Transformateurs de puissance - Partie 22-6: Accessoires pour transformateurs de puissance et bobines d´inductance - Ventilateurs electriques pour transformateurs)
Standard published on 18.1.2021
Selected format:Latest update: 2025-07-05 (Number of items: 2 207 347)
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