Signalling on low-voltage electrical installations in the frequency range 3 kHz 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
Electrical installations of buildings. Part 7. Requirements for special installations or locations. Section 701. Locations containing a bath tub or shower basin