Ключевые слова: background, cable, check, circuit breaker, cleaning, construction, control, current transformer, danger, disconnecting, distribution, electric, electrical, electrician, electricity, energy, engineer, engineering, equipment, industrial, industry, insulator, maintenance, man, measurement, operation, people, performance, plant, potential transformer, power, preventive, safety, service, services, site, substation, supply, switch, switchgear, switchyard, technician, technology, tower, transformer, transmission, voltage, wire, work, worker,