Descriptors | High voltage, Selection, Rated voltage, Prefabricated parts, Mechanical testing, Ratings, Thermal testing, Noise (environmental), Covers, Low voltage, Transformer substations, Outdoor electric equipment, Switchgear, Impact testing, Electric substations, Type testing, Environment (working), Installation, Transformers, Earthing, Protected electrical equipment, Maintenance, Doors, Performance, Marking, Electric power transmission, Electric enclosures, Dielectric-strength tests, Testing conditions, Acoustic measurement, Temperature, Electrical safety, Electrical testing, Impulse-voltage tests |