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IEC 61558-2-2-ed.3.0
Safety of transformers, reactors, power supply units and combinations thereof - Part 2-2: Particular requirements and tests for control transformers and power supply units incorporating control transformers
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STANDARD published on 19.10.2022
The information about the standard:
Designation standards: IEC 61558-2-2-ed.3.0
Publication date standards: 19.10.2022
SKU: NS-1095672
The number of pages: 34
Approximate weight : 102 g (0.22 lbs)
Country: International technical standard
Category: Technical standards IEC
The category - similar standards:
Annotation of standard text IEC 61558-2-2-ed.3.0 :
IEC 61558-2-2:2022 deals with the safety of control transformers and power supply units incorporating control transformers. Transformers incorporating electronic circuits are also covered by this document. This third edition cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - adjustment of structure and references in accordance with IEC 61558-1:2017; - new general symbol for control transformers; - new symbol for power supply unit with linearly regulated output voltage. It has the status of a group safety publication in accordance with IEC Guide 104. LIEC 61558-2-2:2022 traite de la securite des transformateurs de commande et des blocs dalimentation qui incorporent des transformateurs de commande. Les transformateurs qui incorporent des circuits electroniques sont egalement couverts par le present document. Cette troisieme edition annule et remplace la deuxieme edition parue en 2007. Cette edition constitue une revision technique. Cette edition inclut les modifications techniques majeures suivantes par rapport a ledition precedente: - la structure et les references ont ete alignees sur lIEC 61558-1:2017; - un nouveau symbole general a ete ajoute pour les transformateurs de commande; - un nouveau symbole a ete ajoute pour les blocs dalimentation dont la regulation de la tension secondaire est lineaire. Il a le statut de publication groupee de securite conformement au Guide 104 de lIEC.
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