Ключевые слова: america, american, cable, canada, canadian, center, ceramic, construction, current, danger, distribution, electric, electrical, electricity, elements, energy, engineering, equipment, generation, generator, high, industrial, industry, insulator, insulators, line, low, metal, north, phase, plant, power, production, states, station, steel, sub, substation, supply, technology, three, tower, transform, transformer, transmission, united, usa, voltage, watt, wire,