本文件规定了用于确定乘用车和商用车电子部件抗扰度的线束激励试验方法和程序，而不考虑推进系统（例如火花点火发动机、柴油发动机、电动机）。 大电流注入（BCI）测试方法基于使用电流探针作为变压器将电流注入线束，线束形成二次绕组。 管状波耦合器（TWC）测试方法基于使用定向耦合器原理将波耦合到线束中。TWC测试方法是针对GHz范围（GSM频段、UMTS、ISM 2,4 GHz）内的辐射干扰对汽车部件进行抗扰度测试而开发的。 它最适合小型（相对于波长）和屏蔽被测设备（DUT），因为在这些情况下，主要的耦合机制是通过线束。 本文件中考虑的电磁干扰仅限于连续窄带电磁场。

This document specifies harness excitation test methods and procedures for determining the immunity of electronic components of passenger cars and commercial vehicles regardless of the propulsion system (e.g. spark-ignition engine, diesel engine, electric motor). The bulk current injection (BCI) test method is based on current injection into the wiring harness using a current probe as a transformer where the harness forms the secondary winding. The tubular wave coupler (TWC) test method is based on a wave coupling into the wiring harness using the directional coupler principle. The TWC test method was developed for immunity testing of automotive components with respect to radiated disturbances in the GHz ranges (GSM bands, UMTS, ISM 2,4 GHz). It is best suited to small (with respect to wavelength) and shielded device under test (DUT), since in these cases the dominating coupling mechanism is via the harness. The electromagnetic disturbances considered in this document are limited to continuous narrowband electromagnetic fields.