Ключевые слова: background, black, builder, building, business, cable, cargo, city, communication, connection, construction, crane, danger, development, distribution, electrical, electricity, emergency, energy, engineering, equipment, high, high voltage, industry, insulators, lifting, line, male, mast, men, network, people, pillar, power, power supply, pylon, safety, silhouette, steel, structure, tall, team work, technology, tower, urban, voltage, white, wiring, work, worker,