IEC 61558-2-14:20 22 RLV包含官方IEC国际标准及其红线版本。Redline版本仅提供英文版本，为您提供了一种快速简单的方法来比较IEC官方标准与其以前版本之间的所有变化。 IEC 61558-2-14:20 22涉及一般应用的可变变压器和包含一般应用的可变变压器的电源单元的安全性。包含电子电路的变压器也包括在本文件中。第二版取消并取代了2012年出版的第一版。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: -根据IEC 61558调整结构和参考文献-1:2017; -移至IEC 61558-1:20 17的结构描述； -具有线性调节输出电压和所需集电器位置变化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 61558-2-14:2022 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 61558-2-14:2022 deals with the safety of variable transformers for general applications and power supply units incorporating variable transformers for general applications. Transformers incorporating electronic circuits are also covered by this document. This second edition cancels and replaces the first edition published in 2012. 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;
- description of constructions moved to IEC 61558-1:2017;
- new symbols for power supply units with linearly regulated output voltages and required current collector position changes.
It has the status of a group safety publication in accordance with IEC Guide 104.