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United power system and isolated power systems. Planning of power systems development. General requirements

Document status: Active

Electrical installations of buildings. Part 5. Selection and erection of electrical equipment. Section 534. Devices for protection against surge overvoltages

Document status: Replaced by GOST R 50571.5.53-2013

Winding wires. Test methods. Part 6. Thermal properties

Document status: Cancelled

Solid electrical insulating materials. Methods for evaluation of dielectric power factor and permittivity at power (50 Hz) frequency

Document status: Active

Rubber insulated cables for rated voltages up to and including 450/750 V. Part 4. Cords and flexible cables

Document status: Active

Rotating electrical machines. Part 18-31. Functional evaluation of insulation systems. Test procedures for form-wound windings. Thermal evaluation and classification of insulation systems used in rotating machines

Document status: Active