BS EN IEC 62271-202. High-voltage switchgear and controlgear. Part 202. High-voltage/ low-voltage prefabricated substation|Testing conditions, Thermal testing, Selection, Performance, Type testing, Impulse-voltage tests, Impact testing, Maintenance, Mechanical testing, Protected electrical equipment, Electrical testing, Low voltage, Electric enclosures, Covers, Outdoor electric equipment, Rated voltage, Environment (working), Temperature, Ratings, Doors, Electric power transmission, Transformers, Acoustic measurement, High voltage, Switchgear, Prefabricated parts, Noise (environmental), Earthing, Installation, Dielectric-strength tests, Electric substations, Electrical safety, Transformer substations