标准摘要
[中文适用范围]: IEC 60939-3:2024 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、简单的方法来比较官方 IEC 标准与其先前版本之间的所有更改。 IEC 60939-3:2024 涵盖用于衰减电磁源产生的不需要的射频信号(例如噪声或干扰)的无源滤波器。一个外壳内的单通道滤波器和多通道滤波器或者构建在形成紧凑实体的印刷电路板上的单通道滤波器和多通道滤波器都包括在本文件的范围内。本文件适用于适合进行安全测试的用于抑制电磁干扰的无源滤波器单元。这意味着,当需要遵守表 B.1 的强制性测试时,根据本文件指定的滤波器将连接到主电源,或者用于设备规范指定部分或全部这些安全测试的其他电路位置。是必要的。本文件适用于无源滤波器装置,该装置将连接到额定电压不超过 1 000 V AC、额定频率不超过 400 Hz 或 1 500 V DC 的交流电源或其他电源(直流或交流)。注意:对于交流使用,IEC 60384-14 适用于连接到标称频率不超过 100 Hz 的交流电源的电容器。本文档涵盖设备过滤器(美国),但不涵盖设施过滤器、有线连接过滤器或直接插入式过滤器。这些其他过滤器将由另一个部分规范涵盖。相对于前一版本,本版本包括以下重大技术变化: a) 安全和性能测试的单独条款; b) 添加了在三相滤波器中使用多个 X 电容器桥接基本绝缘的注释; c) 替代 X 和 Y 电容器的特性和条件现在在单独的第 4.1 款中描述; d) 更新爬电距离和电气间隙表,使其符合最新版本的 IEC 60938-2 和 IEC 60664-1; e) 允许对电感测量进行电压测量(7.3); f) 增加了根据断开后剩余能量进行标记的要求; g) 增加了CTL DSH 2044:2016中IEC滤波器温度测试的内容; h) 增加了安全测试所需样品温升的注释; i) 更改了附录 A 中电容器的索引,以避免索引名称和电容器类别之间的混淆; j) 将测试从 1A 组移至 2 组。现在,1A 组中的样品需要在不进行灌封的情况下提交; k) 根据 ISO/IEC 指令第 2 部分:2021 对文件的所有部分进行了修订,并与其他类似文件保持一致。附件 X 包含条款/子条款编号变更的所有交叉引用。 [外文原描述]: IEC 60939-3:2024 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 60939-3:2024 covers passive filters used to attenuate unwanted radio-frequency signals (such as noise or interference) generated from electromagnetic sources. Both single and multi-channel filters within one enclosure or which are built on a printed circuit board forming a compact entity are included within the scope of this document. This document applies to passive filter units for electromagnetic interference suppression for which safety tests are appropriate. This implies that filters specified according to this document will either be connected to mains supplies, when compliance with the mandatory tests of Table B.1 is necessary, or used in other circuit positions where the equipment specification specifies that some or all of these safety tests are required. This document applies to passive filter units, which will be connected to an AC mains or other supply (DC or AC) with a nominal voltage not exceeding 1 000 V AC, with a nominal frequency not exceeding 400 Hz, or 1 500 V DC. Note: For AC use, IEC 60384-14 applies to capacitors which will be connected to AC mains with a nominal frequency not exceeding 100 Hz. This document covers appliance filters (US) but does not cover facility filters, cord-connected filters or direct plug-in filters. These other filters will be covered by another sectional specification. This edition includes the following significant technical changes with respect to the previous edition: a) separated clauses for safety and performance tests; b) added note for use of multiple X capacitors bridging basic insulation in 3 phase filters; c) characteristics and conditions to substitute X and Y capacitors are now described in a separate Subclause 4.1; d) creepage and clearance tables updated and in line with the latest editions of IEC 60938-2 and IEC 60664-1; e) allowing voltage measurement for inductance measurements (7.3); f) added requirements for marking depending on remaining energy after disconnection; g) added content of CTL DSH 2044:2016 for temperature test of IEC filters; h) added note about temperature rise required specimens for safety testing; i) changed index of capacitors in Annex A to avoid confusion between index name and capacitor class; j) moved tests from group 1A to 2. Now, samples in group 1A need to be submitted without potting; k) revision of all parts of the document has taken place based on the ISO/IEC Directives, Part 2:2021, and harmonization with other similar kinds of documents. Annex X contains all cross-references of changes in clause/subclause numbers.
英文名称Passive filter units for electromagnetic interference suppression - Part 3: Passive filter units for which safety tests are appropriate