Ключевые слова:
All-or-nothing relays, Relays, Switches, Switchgear, Electromechanical devices, Environment (working), Testing conditions, Ratings, Technical data sheets, Marking, Temperature rise, Electric terminals, Electric contacts, Electrical testing, Mechanical testing, Endurance testing, Performance testing, Temperature measurement, Fire resistance, Thermal resistance, Fire tests, Type testing, Electric current, Flexible conductors, Rigid conductors, Area, Pollution control