Ключевые слова: above, abstract, cables, conductor, connection, current, day, electric, electrical, electricity, energy, engineering, equipment, grid, high, hydro, industrial, industry, infrastructure, insulators, lines, mast, mesh, metal, outdoor, outdoors, outside, pattern, pillar, pole, power, pylon, steel, structure, supply, symmetrical, symmetry, tall, technology, tension, tower, transmission, utility, voltage, wire,