Ключевые слова: background, bill, black, blue, box, cable, circuit, circuits, counter, day, device, electric, electrical, electricity, energy, equipment, fence, grass, green, high, industrial, industry, light, line, measure, measurement, metal, meter, nature, network, old, outdoor, post, power, road, rural, russia, safety, sign, sky, standing, steel, street, switch, technology, volt, voltage, wall, watts, wire,