GOST 12.2.007.2-1975 Occupation safety standards system. Power transformers and reactors. Safety requirements
GOST 12.2.007.3-1975 Occupation safety standards system. Electrical devices for voltages above 1000 V. Safety requirements
GOST 12.2.007.4-1975 Occupational safety standards system. Cubicles of factory-assembled switch-gears and of complete transformer substations, cubicles of metal-enclosed switchgear and of unit transformer substation