Shunt power self-healing capacitors of the self-healing type for a.c. systems having a rated voltage up to and including 1 kV. Part 1. General. Performance, testing and rating. Safety requirements. Guide for installation and operation
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
Occupational safety standards system. Special clothing for protection from sulphur dioxide. Method for determining the protective properties of materials