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.