IEC 61000-4-3:20 20适用于电气和电子设备对辐射电磁能的抗扰度要求。它建立了测试级别和所需的测试程序。本文件的目的是建立一个通用参考，用于评估电气和电子设备在受到辐射射频电磁场时的抗扰度。IEC 61000本部分中记录的测试方法描述了评估设备或系统对不靠近EUT的RF源的RF电磁场抗扰度的一致方法。第6条规定了测试环境。注1如IEC指南107所述，这是供IEC产品委员会使用的基本EMC出版物。正如指南107中所述，IEC产品委员会负责确定是否应应用该抗扰度测试标准，如果应用，则负责确定适当的测试水平els和性能标准。TC 77及其小组委员会准备与产品委员会合作，评估其产品特定免疫测试的价值。注2 IEC 61000-4-39中定义了针对EUT附近RF源的抗扰度测试。特别考虑用于防止来自数字无线电话和其它RF发射装置的射频发射。注3本部分规定了评估电磁辐射对相关设备影响的试验方法。电磁辐射的模拟和测量对于定量确定影响来说不够精确。本基本文件中定义的测试方法的主要目的是在各种测试设施中建立测试配置的充分再现性和测试结果的重复性。本文档是一个独立的测试方法。不可能使用其他测试方法来替代声称符合本文件。本第四版取消并取代了2006年出版的第三版、修正案1:20 07和修正案2:20 10。本版构成技术修订版。与上一版相比，此版本包括以下重大技术变更: -已经描述了使用多个测试信号的测试； -增加了关于EUT和电缆布局的附加信息； -已取消频率上限，以顾及新服务； -规定了场的表征以及抗扰度链的功率放大器线性度的检查。

IEC 61000-4-3:2020 is applicable to the immunity requirements of electrical and electronic equipment to radiated electromagnetic energy. It establishes test levels and the required test procedures. The object of this document is to establish a common reference for evaluating the immunity of electrical and electronic equipment when subjected to radiated, radio-frequency electromagnetic fields. The test method documented in this part of IEC 61000 describes a consistent method to assess the immunity of an equipment or system against RF electromagnetic fields from RF sources not in close proximity to the EUT. The test environment is specified in Clause 6. NOTE 1 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 should be applied or not, and if applied, they are responsible for determining the appropriate test levels and performance criteria. TC 77 and its sub-committees are prepared to co-operate with product committees in the evaluation of the value of particular immunity tests for their products. NOTE 2 Immunity testing against RF sources in close proximity to the EUT is defined in IEC 61000-4-39. Particular considerations are devoted to the protection against radio-frequency emissions from digital radiotelephones and other RF emitting devices. NOTE 3 Test methods are defined in this part for evaluating the effect that electromagnetic radiation has on the equipment concerned. The simulation and measurement of electromagnetic radiation is not adequately exact for quantitative determination of effects. The test methods defined in this basic document have the primary objective of establishing an adequate reproducibility of testing configuration and repeatability of test results at various test facilities. This document is an independent test method. It is not possible to use other test methods as substitutes for claiming compliance with this document. This fourth edition cancels and replaces the third edition published in 2006, Amendment 1:2007 and Amendment 2:2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- testing using multiple test signals has been described;
- additional information on EUT and cable layout has been added;
- the upper frequency limitation has been removed to take account of new services;
- the characterization of the field as well as the checking of power amplifier linearity of the immunity chain are specified.