变压器、电抗器、电源装置及其组合的安全第1部分:一般要求和试验

[中文适用范围]： 本部分IEC 61558涉及电力变压器、电源、电抗器、电源单元及类似产品组合的安全方面，如电气、热和机械安全。 本文档涵盖以下独立或关联的固定或便携式干式变压器、电源单元（包括开关模式电源单元）、电抗器及其组合的安全领域。其绕组可以是封装或非封装的，不构成配电网络的一部分。 区分变压器、电源单元和开关模式电源单元的标准如下： - 变压器：频率不变，但可能有不超过30kHz的内部共振频率； - 电源单元：内部工作频率和波形与供电频率和波形不同，且内部工作频率不超过500Hz； - 开关模式电源单元：内部工作频率和波形与供电频率和波形不同，且内部工作频率超过500Hz但不超过100MHz。 本标准还适用于额定输出不超过1000VA的变压器，且t_w温度不超过140°C。 本文档也适用于包含电子电路的变压器、电源单元、开关模式电源单元和电抗器。 本文档不适用于连接到变压器、电源单元、开关模式电源单元和电抗器的输入和/或输出端子或插座的外部电路及其组件。 [外文原描述]： IEC 61558-1:2017 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 61558-1:2017 deals with safety aspects of transformers, reactors, power supply units and combinations thereof such as electrical, thermal and mechanical safety. This document covers the following independent or associated stationary or portable types of dry-type transformers, power supply units, including switch mode power supply units, reactors and combinations thereof in the field of safety. The windings can be encapsulated or non-encapsulated. They are not forming a part of the distribution network. This third edition cancels and replaces the second edition published in 2005 and Amendment 1:2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a. fully insulated winding wires (FIW), new tables and aging tests for FIW constructions, b. overvoltage categories 1, 2, 3 and 4 for clearances and dielectric strength tests (new tables) are included, c. development of new symbols for the different overvoltage categories, d. symbol for maximum altitudes, if higher than 2 000 m, e. symbol for plug in power supply units, if the pins are damaged (tumbling barrel test), f. symbol for minimum temperature (even during the transportation), g. alternative temperature measurement, simulated load and back to back method according to IEC 60076-11, h. short circuit and overload protection, simulated load and back to back method according to IEC 60076-11, i. adjustment of temperatures in Table 2 according to CENELEC Guide 29, j. establishing partial discharge test above 750 V for FIW constructions, k. requirements for toroidal core constructions, division for basic and for supplementary isolation, l. modification of protection indexes for enclosures (IP-code), m. dimensioning of rectangular cross section connectors for transformers, n. repetition test, 80% of required dielectric strength test voltage of Table 14,a. o. vibration test for vehicles and railway applications, p. two Y1 Capacitors for working voltages above 250 V and not exceeding 500 V with overvoltage category 3. It has the status of a group safety publication in accordance with IEC Guide 104. The content of the corrigendum 1 (2025-12) has been included in this copy.