IEC 61558-2-5:20 24 EXV包含国际标准及其扩展版本(EXV)。IEC官方标准的扩展版本仅提供英文版本，为用户提供了标准的全面内容。IEC 61558-2-5:20 24 EXV包括参考IEC 61558-1:20 17的内容。 IEC 61558-2-5:20 24涉及剃须刀变压器、包含剃须刀变压器的电源单元和剃须刀电源单元的安全性。本文件还涵盖了包含电子电路的剃须刀变压器。这第三版取消并取代了2010年出版的第二版。本版构成技术修订版。 与上一版相比，此版本包括以下重大技术变更: a)根据IEC 61558调整结构和参考文献-1:2017; b)输出电压线性调节的电源单元的新符号。 根据IEC指南104，它具有团体安全出版物的地位。

IEC 61558-2-5:2024 EXV contains both the international standard and its extended version (EXV). This extended version of the official IEC Standard is available in English only and provides the user with a comprehensive content of the Standard. IEC 61558-2-5:2024 EXV includes the content of the references made to IEC 61558-1:2017.

IEC 61558-2-5:2024 deals with the safety of shaver transformers, power supply units incorporating a shaver transformer, and shaver supply units. Shaver 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.