范围:本欧洲标准适用于用于铁路车辆的电气和电子设备的电磁兼容性发射和抗扰度方面。EN 50121-3-2适用于 机车车辆上的仪器。 考虑的频率范围为直流至400 GHz。此时无需进行测量 没有规定要求的频率。 试验的应用应取决于特定装置、其配置、端口、技术和操作条件。 本标准考虑了铁路车辆的内部环境和外部环境 铁路环境，以及手持无线电发射机等设备对设备的干扰。 如果一个端口打算发送或接收用于无线电通信（有意的散热器， e、 g.应答器系统），则本标准中的辐射发射要求不适用于 适用于ITU定义的无线电发射机的有意传输。 抗扰度限值不适用于相应EMC相关规范中定义的排除带 无线电设备标准。 本标准不适用于启动或停止设备时的瞬态排放。 本标准的目的是定义电磁发射和辐射的限值和试验方法 与传导和辐射干扰相关的抗扰度试验要求。 这些限制和测试代表了基本的电磁兼容性要求。 选择排放要求是为了确保在铁路车辆上正常运行的设备产生的干扰不超过可能阻止其他设备按预期运行的水平。本标准中给出的排放限值优先于其他标准中给出的车辆上单个设备的排放要求。 同样，已选择抗扰度要求，以确保车辆设备具有足够的抗扰度。 然而，这些水平并不涵盖任何地点发生概率极低的所有病例。应规定偏离本标准的具体要求。 每个考虑的端口都规定了测试要求。 这些具体规定将与EN 50121-1中的一般规定一起使用。交叉引用:EN 61000-4-5:2014EN 61000-4-2:2009IEC 61000-4-2:2008IEC 61000-4-4:2012EN 55016-2- 1:2014IEC 61000-4-5:2013ISPR 16-2-:2014IEC 61000-4-30:2015EN 61000-4-6:2014IEC 61000-4-3:2006EN 61000-4-30:2015IEC 61000-6-4-2006EN 61000-4-4:2012EN 61000-4-3:2006IEC 61000-4-5:2014EN 61000-6-4:2007EN 50155:2007EN 50121-1:2017EUCISPR 16-1

Scope: This European Standard applies to emission and immunity aspects of EMC for electrical and electronic apparatus intended for use on railway rolling stock. EN 50121-3-2 applies for the integration of apparatus on rolling stock. The frequency range considered is from DC to 400 GHz. No measurements need to be performed at frequencies where no requirement is specified. The application of tests shall depend on the particular apparatus, its configuration, its ports, its technology and its operating conditions. This standard takes into account the internal environment of the railway rolling stock and the external environment of the railway, and interference to the apparatus from equipment such as hand-held radio-transmitters. If a port is intended to transmit or receive for the purpose of radio communication (intentional radiators, e.g. transponder systems), then the radiated emission requirement in this standard is not intended to be applicable to the intentional transmission from a radio-transmitter as defined by the ITU. Immunity limits do not apply in the exclusion bands as defined in the corresponding EMC related standard for radio equipment. This standard does not apply to transient emissions when starting or stopping the apparatus. The objective of this standard is to define limits and test methods for electromagnetic emissions and immunity test requirements in relation to conducted and radiated disturbances. These limits and tests represent essential electromagnetic compatibility requirements. Emission requirements have been selected so as to ensure that disturbances generated by the apparatus operated normally on railway rolling stock do not exceed a level which could prevent other apparatus from operating as intended. The emission limits given in this standard take precedence over emission requirements for individual apparatus on board the rolling stock given in other standards. Likewise, the immunity requirements have been selected so as to ensure an adequate level of immunity for rolling stock apparatus. The levels do not however cover all cases which may occur with an extremely low probability of occurrence in any location. Specific requirements which deviate from this standard shall be specified. Test requirements are specified for each port considered. These specific provisions are to be used in conjunction with the general provisions in EN 50121-1.Cross References:EN 61000-4-5:2014EN 61000-4-2:2009IEC 61000-4-2:2008IEC 61000-4-4:2012EN 55016-2-1:2014IEC 61000-4-5:2013CISPR 16-2-:2014IEC 61000-4-30:2015EN 61000-4-6:2014IEC 61000-4-3:2006EN 61000-4-30:2015IEC 61000-6-4:2006EN 61000-4-4:2012EN 61000-4-3:2006IEC 61000-4-5:2014EN 61000-6-4:2007EN 50155:2007EN 50121-1:2017EN 50121-3-1:2017EUCISPR 16-1-4:2010EN 55016-2-3:2010CISPR 16-2-3:2010CISPR 16-1-1:2010EN 55016-1-1:2010EN 55016-1-4:2010Incorporates the following:Amendment, May 2019