Ключевые слова:
Pollution, Atmospheric pressure, Electromechanical devices, Electronic equipment and components, Grades (quality), Height, Environment (working), Acceleration, Classification systems, Rainfall, Electrical components, Electric power system disturbances, Railway equipment, Harmonics, Humidity, Temperature, Electrical equipment, Solar radiation, Alternating current, Snow, Railway vehicles, Atmospheric disturbances, Ice, Railway applications