Hydro power plants. Part 1-4. Hydraulic engineering constructions of hydroelectric power stations. The general requirements to the organization and realization of monitoring
Connecting devices. Devices for the connection of aluminium conductors in clamping units of any material and copper conductors in aluminium bodied clamping units. General requirements and methods of tests
Electromagnetic compatibility of technical equipment. Radio communication equipment. Part 14. Specific requirements for analogue and digital terrestrial TV broadcasting service transmitters