Adjustable speed electrical power drive systems. Part 9-2. Energy efficiency of power drive systems, electric motor starters, power electronics and electromechanical systems based on them. Energy efficiency indicators for power drive systems and motor starters
Electric and optical fibre cables. Test methods for non-metallic materials. Part 604. Physical tests. Measurement of absence of corrosive components in filling compounds
Digital Video Broadcasting. Single frequency networks of a second generation digital terrestrial television broadcasting system (DVB-T2). Basic parameters