电动汽车磁场和电场强度的性能水平和测量方法，宽带，9 kHz 至 30 MHz

[中文适用范围]： 本 SAE 推荐实践中的测试程序和性能水平涵盖 9 kHz 至 30 MHz 频率范围内的磁场和电场强度测量以及 450 kHz 至 30 MHz 频率范围内的传导发射。本文件中的传导发射测量仅适用于开关频率高于 9 kHz、安装在车辆上且通过金属导体传输功率的电池充电系统。传导发射要求仅适用于通过交流电源线对电池充电期间。本文件不涵盖使用感应电源耦合设备的电池充电系统的传导和辐射发射测量。 SAE J551-2 涵盖了 30 MHz 至 1000 MHz 频率的电磁干扰测量以及 150 kHz 至 30 MHz 频率的窄带电磁干扰测量。 [外文原描述]： The test procedures and performance levels in this SAE Recommended Practice cover the measurement of magnetic and electric field strengths over the frequency range 9 kHz to 30 MHz and conducted emissions over the frequency range of 450 kHz to 30 MHz1.Conducted emission measurements in this document are applicable only to battery-charging systems which utilize a switching frequency above 9 KHz, are mounted on the vehicle, and whose power is transferred by metallic conductors. Conducted emission requirements apply only during charging of the batteries from AC power lines.Conducted and radiated emissions measurements of battery-charging systems that use an induction power coupling device are not covered by this document.The measurement of electromagnetic disturbances for frequencies from 30 MHz to 1000 MHz and narrowband electromagnetic disturbances for frequencies from 150 KHz to 30 MHz are covered in SAE J551-2.