GOST 7991-77

Low-voltage switchgear and controlgear. Part 6. Multiple function equipment. Section one. Automatic transfer switching equipment

Methods for determination of endurance of polymer electrical insulation materials and systems by means of acceleration tests in chemically active media. General requirements. Materials and insulation systems for law-voltage electrical products tests

3- and 4-strand polyethylene fibre ropes. General specifications

Horizontal spline hobbing machines. Main dimensions

Gears of turbine and compressor machines. Technical requirements. Control methods

Integrated circuits. The measurement method of the power sources instability effect on the operational amplifiers zero drift voltage and emf