The influence of high pressure sodium lamps on the power line communications channel

Abstract: The high pressure sodium lamp is a high energy outdoor light source that belongs to the high intensity discharge lamp family. It comes in different shapes and requires a ballast to start it. The high pressure sodium lamp is a source of interference to the power line communications channel as it injects noise when connected to the 220V mains. This paper investigates the influence of the high pressure sodium lamp on the narrowband and broadband power line communications channel. It is shown that the frequency band: 3kHz – 150kHz is not highly infected whereas in the band: 150kHz – 30MHz, PLC signals compete with Electromagnetic Compatibility (EMC) levels