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Solid electrical insulating materials. Methods for evaluation of electrical strength at a. c. voltage at power (50 Hz) frequency and d. c. voltage

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Phenol impregnated cellulose paper foil-clad electrical insulating material of rated combustibility for printed plates. Specifications

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Semiconductor rectifiers of power higher than 5 kW. General specifications

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LED modules for general lighting. Safety specifications

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Electric energy semiconductor converters with power 5 kV x A and higher. Marking, packing, transportation and storage

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Renewable power engineering. Wind power engineering. Wind turbines. Part 21. Measurement and assessment of power quality characteristics of grid connected wind turbines

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