电磁兼容性（EMC）.第4-12部分:试验和测量技术.环波抗扰度试验

[中文适用范围]： 本部分IEC 61000涉及电气和电子设备在运行条件下对公共和非公共网络的低压电源、控制和信号线中出现的环形波的抗扰度要求和测试方法。 本文件的目的是建立一个共同的参考，用于评估电气和电子设备在受到环形波时的抗扰度。IEC 61000本部分中记录的测试方法描述了一种一致的方法，用于评估设备或系统对定义现象的抵抗能力。 注意：如IEC指南107所述，这是一份基本的EMC出版物，供IEC产品委员会使用。如指南107所述，IEC产品委员会负责决定是否应用此抗扰度测试标准，如果应用，他们负责确定适当的测试级别和性能标准。TC 77及其分委员会准备与产品委员会合作，评估特定抗扰度测试和测试级别对其产品的价值。 本文件定义了： - 测试电压和电流波形； - 一系列测试级别； - 测试设备； - 测试设置； - 测试程序。 [外文原描述]： IEC 61000-4-12:2017 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 61000-4-12:2017 relates to the immunity requirements and test methods for electrical and electronic equipment, under operational conditions, to ring waves occurring in low-voltage power, control and signal lines supplied by public and non-public networks. The object of this document is to establish a common reference for evaluating the immunity of electrical and electronic equipment when subjected to ring waves. The test method documented in this part of IEC 61000 describes a consistent method to assess the immunity of an equipment or system against a defined phenomenon. It has the status of a basic EMC publication in accordance with IEC Guide 107. This edition includes the following significant technical changes with respect to the previous edition: a) addition of a mathematical modelling of ring wave waveform; b) new Annex B on selection of generators and test levels; c) new Annex C on explanatory notes; d) new Annex D on measurement uncertainty; e) addition of high speed CDN; f) addition of a calibration procedure for CDN.