prSSH IEC 61558-2-12:2024 ED3

Siguria e transformatorëve, reaktorëve, njësive të furnizimit me energji elektrike dhe kombinimeve të tyre - Pjesa 2-12: Kërkesat dhe testet e veçanta për transformatorët e tensionit konstant dhe njësitë e furnizimit me energji elektrike për tension konstant

Safety of transformers, reactors, power supply units and combinations thereof - Part 2-12: Particular requirements and tests for constant voltage transformers and power supply units for constant voltage

Scope

IEC 61558-2-12:2024 deals with the safety of constant voltage transformers for general applications and power supply units for constant voltage for general applications. Constant voltage transformers incorporating electronic circuits are also covered by this document.
This third edition cancels and replaces the second edition published in 2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) adjustment of structure and references in accordance with IEC 61558-1:2017;
b) description of constructions moved to IEC 61558-1:2017;
c) 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.