Extended version
Contains the references made to another standard inserted appropriately into its content and highlighted for easy identification.
IEC 61558-2-2:2022 EXV
IEC 61558-2-2 Redline version
IEC 61558-2-2:2022 RLV
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 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its 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.
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.
CHFÂ 196.-
Extended version
Contains the references made to another standard inserted appropriately into its content and highlighted for easy identification.
DiscoverTechnical committee
TC 96 Transformers and reactorsCategory
Safety - Group Safety| Publication type | International Standard |
| Publication date | 2022-10-19 |
| Edition | 3.0 |
| ICS | 29.180 |
| Stability date | 2025 |
| ISBN number | 9782832259191 |
| Pages | 53 |
| File size | 1.55 MB |
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