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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 22-7: Power transformer and reactor fittings - Accessories and fittings
(Transformateurs de puissance - Partie 22-7: Transformateurs de puissance et bobines d´inductance - Accessoires et equipements)
Standard published on 7.5.2020
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Corrigendum 1 - Power transformers - Part 22-7: Power transformer and reactor fittings - Accessories and fittings
(Corrigendum 1 - Transformateurs de puissance - Partie 22-7: Transformateurs de puissance et bobines d´inductance - Accessoires et equipements)
Correction published on 9.6.2023
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Power transformers - Part 22-8: Power transformer and reactor fittings - Devices suitable for use in communication networks
(Transformateurs de puissance - Partie 22-8: Accessoires pour transformateurs de puissance et bobines d´inductance - Dispositifs compatibles avec les reseaux de communication)
Standard published on 15.6.2021
Selected format:Power transformers - Part 23: DC magnetic bias suppression devices
Standard published on 9.1.2018
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Power transformers - Part 24: Specification of voltage regulating distribution transformers (VRDT)
(Transformateurs de puissance - Partie 24: Specification des transformateurs de distribution regulateurs de tension (VRDT))
Standard published on 9.7.2020
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Power transformers - Part 25: Neutral grounding resistors
(Transformateurs de puissance - Partie 25: Resistances de mise a la terre du neutre)
Standard published on 23.2.2023
Selected format:Power transformers - Part 26: Functional requirements of insulating liquids for use in power transformers
Standard published on 26.3.2020
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Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air
(Transformateurs de puissance - Partie 3: Niveaux d´isolement, essais dielectriques et distances d´isolement dans l´air)
Standard published on 31.7.2013
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Amendment 1 - Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air
(Amendement 1 - Transformateurs de puissance - Partie 3: Niveaux d´isolement, essais dielectriques et distances d´isolement dans l´air)
Change published on 22.3.2018
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Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air
(Transformateurs de puissance - Partie 3: Niveaux d´isolement, essais dielectriques et distances d´isolement dans l´air)
Standard published on 22.3.2018
Selected format:Latest update: 2025-07-05 (Number of items: 2 207 347)
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