Safety of transformers, reactors, power supply units and combinations thereof - Part 2-8: Particular requirements and tests for transformers and power supply units for bells and chimes

Informace o normě:

Označení normy: IEC 61558-2-8-ed.3.0-EXV-RLV
Datum vydání normy: 7.6.2024
Počet stran: 263
Přibližná hmotnost: 820 g (1.81 liber)
Země: Mezinárodní technická norma
Kategorie: Technické normy IEC

Anotace textu normy IEC 61558-2-8-ed.3.0-EXV-RLV :

This pack contains IEC 61558-2-8:2024 EXV and IEC 61558-2-8:2024 RLV. IEC 61558-2-8:2024 deals with the safety of bell and chime transformers and power supply units incorporating bell and chime transformers. Transformers incorporating electronic circuits are also covered by this document. This third edition cancels and replaces the second edition published in 2010. 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) 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.