适用于使用频率范围从3 kHz到525 kHz的信号传输公共供电系统或客户场所内低压电气装置信息的电气设备。 指定分配给不同应用的频带（如适用）、工作频带内终端输出电压的限制以及传导和辐射干扰的限制。并给出了测量方法。指定从3 kHz到400 GHz的频率范围内的干扰限制。

Applies to electrical equipment using signals in the frequency range from 3 kHz up to 525 kHz to transmit information on low-voltage electrical installations, either on the public supply system or within customers' premises. Specifies frequency bands allocated to different applications (where appropriate), limits for the terminal output voltage in the operating band and limits for conducted and radiated disturbance. It also gives the methods of measurement. Specifies disturbance limits in the frequency range from 3 kHz up to 400 GHz.