Ключевые слова: background, backgrounds, blue, bright, cable, caution, closeup, cloud, cloudy, column, communication, complex, concept, connection, construction, copy space, crisscross, current, curves, dark, day, device, distribution, electric, electrical, electricity, energy, engineering, equipment, flash, framework, generation, gray, industrial, industry, infrastructure, line, mast, network, overcast, pillar, pole, power, pylon, sky, supply, technology, transmission, voltage, wire,