电磁兼容性（EMC） - 第4-18部分:试验和测量技术 - 阻尼振荡波抗扰度试验（更正）

[中文适用范围]： IEC 61000-4-18 专注于电气和电子设备在运行条件下，针对以下情况的免疫要求和测试方法：a) 主要发生在高压和 medium voltage (HV/MV) 变电站中安装的电源、控制和信号电缆上的重复性慢速阻尼振荡波；b) 主要发生在气体绝缘变电站 (GIS) 中，以及在某些情况下空气绝缘变电站 (AIS) 或任何安装中因高空电磁脉冲 (HEMP) 现象而产生的重复性快速阻尼振荡波。本文档的目标是建立评估电气和电子设备在受到电源、信号、控制和接地端口上的阻尼振荡波时的免疫性的共同且可重复的参考。本文档中记录的测试方法描述了评估设备或系统对定义现象免疫性的一致性方法。本文档定义了：测试电压和电流波形；测试电平范围；测试设备；测试设备的校准和验证程序；测试设置；测试程序。 [外文原描述]： IEC 61000-4-18: 2019 focuses on the immunity requirements and test methods for electrical and electronic equipment, under operational conditions, with regard to: a) repetitive slow damped oscillatory waves occurring mainly in power, control and signal cables installed in high voltage and medium voltage (HV/MV) substations; b) repetitive fast damped oscillatory waves occurring mainly in power, control and signal cables installed in gas insulated substations (GIS) and in some cases also air insulated substations (AIS) or in any installation due to high-altitude electromagnetic pulse (HEMP) phenomena. The object of this document is to establish a common and reproducible reference for evaluating the immunity of electrical and electronic equipment when subjected to damped oscillatory waves on supply, signal, control and earth ports. 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. NOTE As described in IEC Guide 107, this is a basic EMC publication for use by product committees of the IEC. As also stated in Guide 107, the IEC product committees are responsible for determining whether this immunity test standard is applied or not, and if applied, they are responsible for determining the appropriate test levels and performance criteria. The document defines: test voltage and current waveforms; ranges of test levels; test equipment; calibration and verification procedures of test equipment; test setups; test procedure. This second edition cancels and replaces the first edition published in 2006 and its Amendment 1:2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) addition of a mathematical modelling of damped oscillatory wave waveform; b) new Annex B on measurement uncertainty; c) addition high speed CDN; d) addition of calibration procedures for CDNs; e) addition of the use of the capacitive coupling clamp on interconnection lines for fast damped oscillatory waves; f) addition of a test procedure for DC/DC converters in case the CDN does not work; g) new Annex C on issues relating to powering EUTs having DC/DC converters at the input. Keywords: immunity requirements and test methods for electrical and electronic equipment The contents of the corrigendum of August 2019 have been included in this copy.