Method for Measuring Background Noise Levels Conducted Over Low Voltage Power Lines

This paper describes a measurement methodology for background noise conducted over low voltage power lines in the 0.15 MHz–30 MHz frequency range. A block diagram of a background noise voltage measuring system with supporting components is provided, along with a description of the measurement methodology used. Example measurement results are presented. The paper also describes relationships, which can be used for assessing environment disruption levels on a given power line.