IEC 61558-2-2:2022
(Main)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
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
IEC 61558-2-2:2022 is available as IEC 61558-2-2:2022 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
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.
Sécurité des transformateurs, bobines d'inductance, blocs d'alimentation et combinaisons de ces éléments - Partie 2-2: Exigences particulières et essais pour les transformateurs de commande et les blocs d'alimentation qui incorporent des transformateurs de commande
IEC 61558-2-2:2022 est disponible sous forme de IEC 61558-2-2:2022 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
L'IEC 61558-2-2:2022 traite de la sécurité des transformateurs de commande et des blocs d'alimentation qui incorporent des transformateurs de commande. Les transformateurs qui incorporent des circuits électroniques sont également couverts par le présent document. Cette troisième édition annule et remplace la deuxième édition parue en 2007. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- la structure et les références ont été alignées sur l'IEC 61558-1:2017;
- un nouveau symbole général a été ajouté pour les transformateurs de commande;
- un nouveau symbole a été ajouté pour les blocs d'alimentation dont la régulation de la tension secondaire est linéaire.
Il a le statut de publication groupée de sécurité conformément au Guide 104 de l'IEC.
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IEC 61558-2-2
®
Edition 3.0 2022-10
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
GROUP SAFETY PUBLICATION
Safety of power transformers, power supplies, reactors, power supply units and
similar products combinations thereof –
Part 2-2: Particular requirements and tests for control transformers and power
supplies supply units incorporating control transformers
IEC 61558-2-2:2022-10 RLV(en)
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IEC 61558-2-2
®
Edition 3.0 2022-10
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
GROUP SAFETY PUBLICATION
Safety of power transformers, power supplies, reactors, power supply units and
similar products combinations thereof –
Part 2-2: Particular requirements and tests for control transformers and power
supplies supply units incorporating control transformers
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.180 ISBN 978-2-8322-5919-1
Warning! Make sure that you obtained this publication from an authorized distributor.
® Registered trademark of the International Electrotechnical Commission
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– 2 – IEC 61558-2-2:2022 RLV IEC 2022
CONTENTS
FOREWORD . 3
INTRODUCTION . 2
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 9
4 General requirements . 10
5 General notes on tests . 10
6 Ratings . 10
7 Classification . 10
8 Marking and other information . 10
9 Protection against electric shock .
...
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