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Solid electrical insulating materials. Methods for evaluation of dielectric power factor and permittivity at power (50 Hz) frequency
Document status: Active
Flameproof mine power transformers. General specifications
Document status: Active
Laminated plastic sheets and plates for electrotechnical use. General specification
Document status: Active
Refrigerating systems and heat pumps. Safety and environmental requirements. Part 1. Definitions, classification and selection criteria
Document status: Active
Leakage electric current mine-type protective devices for voltage nets to 1200 V. General technical requirements
Document status: Cancelled