EN 45020 : 1998 : standardization and related activities
EN 50065 -1 : July 1991: signalling on low-voltage electrical installations in the frequency range 3khz to 148,5 khz: part 1: general requirements, frequency bands and electromagnetic disturbances / European Committee for Electrotechnical Standardization
EN 50065 -2-2 : January 2003: signalling on low-voltage electrical installations in the frequency range 3khz to 148,5 khz: part 2-2: 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 industrial environments / European Committee for Electrotechnical Standardization
EN 50065 -2-3 : January 2003: signalling on low-voltage electrical installations in the frequency range 3khz to 148,5 khz: part 2-3: immunity requirements, for mains communications equipment and systems operating in the range of frequencies 3 kHz to 95 kHz and intended for use by electricity suppliers and distributors / European Committee for Electrotechnical Standardization