Ключевые слова: abstract, black, bright, building, busy, cable, city, cloud, communication, concept, current, day, detail, electric, electrical, electricity, energy, environment, equipment, evening, frame, high, industrial, industry, isolated, landscape, line, mast, plant, pole, poles, post, power, silhouette, sky, steel, structure, sun, sunset, technology, telephone, urban, voltage, white, wire,