Ключевые слова: alternating current, background, blue, business, cable, connection, construction, copy space, current, danger, electric, electrical, electrician, electricity, energy, engineer, engineering, equipment, helmet, high, illustration, industrial, industry, install, job, line, maintenance, man, people, pole, post, power, professional, professions, safety, service, shadow, silhouette, sky, supply, technician, technology, tool, tower, transmission, volt, voltage, wire, work, worker,