标准摘要
[中文适用范围]: 本部分 IEC 61558 涉及 III 类手提灯用变压器和包含 III 类手提灯用变压器的电源装置的安全性。包含电子电路的变压器也适用于本文件。 除非另有规定,从下文开始,术语变压器包括 III 类手提灯用变压器和包含 III 类手提灯用变压器的电源装置。 本文件适用于电源装置(线性)。对于开关模式电源装置,IEC 61558-2-16 与本文件一起适用。如果两个要求冲突,则以最严格的要求为准。 本文件适用于固定或便携式、单相、空气冷却(自然或强制)独立或关联的干式变压器。绕组可以是封装或非封装的。 额定电源电压不超过 1000 V AC,额定电源频率和内部工作频率不超过 500 Hz。 变压器具有以下附加特性: - 空载输出电压和额定输出电压不超过 50 V AC 或 120 V 无纹波 DC; - 空载输出电压和额定输出电压之间的差异很小。 额定输出不超过 10 kVA。 本文件不适用于连接到变压器输入端子和输出端子的外部电路及其组件。 本文件涵盖的变压器仅用于需要电路间双重或加强绝缘的应用。 未来变压器技术的发展可能需要增加频率上限。在此之前,本文件可用作指导文件。 本组安全出版物主要用作产品安全标准,但也供技术委员会在准备与本组安全出版物范围相似的产品出版物时使用。 [外文原描述]: IEC 61558-2-9:2024 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 61558-2-9:2024 EXV includes the content of the references made to IEC 61558-1:2017. IEC 61558-2-9:2024 deals with the safety of transformers for class III handlamps and power supply units incorporating transformers for class III handlamps. 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) addition of a new symbol for power supply unit with linearly regulated output voltage; c) document is not only valid for transformers for tungsten filament handlamps. It has the status of a group safety publication in accordance with IEC Guide 104.
英文名称Safety of transformers, reactors, power supply units and combinations thereof - Part 2-9: Particular requirements and tests for transformers and power supply units for class III handlamps