GOST 21820.2-76

Electrical equipment at voltages of 3 kV and above. Test methods of electric strength of external insulation in conditions of contamination

Galvanized wire nails for asbestos cement roofing. Specifications

Multiple slip joint pliers. Specifications

United power system and isolated power systems. Relay protection and automation. Requirements for the operation of relay protection devices for power transmission lines at voltage level 110 kV and higher in transient modes that come amid saturation of current transformers

Bath valves. Technical requirements

Operation, maintenance and repair for railway rolling stock. Terms and definitions