Ключевые слова: blue, cable, construction, conversion, current, danger, distribution, efficiency, electric, electrical, electricity, energy, engineering, equipment, facility, field, generation, grid, high, industrial, industry, insulator, isolation, isolator, line, metal, oil, pillar, pipe, pipeline, pipes, piping, plant, pole, power, pump, pylon, safety, sky, station, steel, structure, sub, substation, supply, system, technology, tension, tower, transformer, transmission, tube, utility, voltage, volts, warning, water, watts, wire,