Ключевые слова: bearing, black, cable, circuit, circulation, cloud, column, consumption, contour, current, delivery, distribution, electric, electrical, electricity, energy, equipment, extension, frame, hanging, high, insulation, insulator, isolation, line, maintenance, mounting, pillar, power, protection, provider, pylon, sky, string, sun, sunlight, sunrise, sunset, supplier, supply, support, tower, transfer, transmission, transmit, twilight, utility, voltage, wire,