标准摘要
[中文适用范围]： 本部分 IEC 61558 涉及一般应用的隔离变压器和 Incorporating 隔离变压器的电源单元的安全性。包含电子电路的变压器也涵盖在本文件中。安全包括电气、热和机械方面。除非另有说明，从本文件开始，术语“变压器”涵盖一般应用的隔离变压器和 Incorporating 隔离变压器的电源单元。对于（线性）电源单元，本文件适用。对于开关电源单元，适用 IEC 61558-2-16。本文件不适用于 IEC 60076-11 涵盖的变压器。本文件适用于静止或便携式、单相或多相、风冷（自然或强制）的独立或关联的干式变压器。绕组可以是封装的或非封装的。额定供电电压不超过 1 000 V AC，额定供电频率和内部工作频率不超过 500 Hz。额定输出不超过：单相变压器 1 kVA，多相变压器 5 kVA。本文件适用于额定输出无限制的变压器，但须经购买方和制造商同意。注意：本文件不适用于向配电网供电的变压器。空载输出电压或额定输出电压不超过 1 000 V AC 或 1 415 V 纹波-free DC。对于独立变压器，空载输出电压和/或额定输出电压不低于 50 V AC 或 120 V 纹波-free DC。本文件不适用于打算连接到变压器输入端子和输出端子的外部电路及其组件。 [外文原描述]： IEC 61558-2-1:2021 deals with the safety of separating transformers for general applications and power supply units incorporating separating transformers for general applications. 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: 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. This International Standard is to be used in conjunction with IEC 61558-1:2017.
英文名称Safety of transformers, reactors, power supply units and combinations thereof - Part 2-1: Particular requirements and tests for separating transformers and power supply units incorporating separating transformers for general applications