Ключевые слова:
Electrical safety, Electronic equipment and components, Electrical equipment, Electrical components, Safety measures, Heating equipment, Laboratory equipment, Electrically-operated devices, Electric heaters, Protected electrical equipment, Marking, Warning devices, Equipment safety, Instructions for use, Thermal protection, Cleaning, Temperature rise, Temperature-rise limit, Temperature control, Control systems, Electrical protection equipment, Earth-leakage circuit-breakers, Classification systems, Vacuum plant, Rated power, Rated current