DS EN 50065-2-1:2003 Signaling On Low-Voltage Electrical Installations In The Frequency Range 3 Khz To 148,5 Khz - Part 2-1: Immunity Requirements For Mains Communications Equipment And Systems Operating In The Range Of Frequencies 95 Khz To 148,5 Khz And Intended For Use In Residential, Commercial And Light Industrial Environments Pertains to electrical equipment using signals in the frequency range 95 kHz to 148,5 kHz to transmit or receive information on low voltage electrical systems, residential, commercial and light indust