Ключевые слова: abstract, background, black, bottom, cable, current, danger, dark, draw, electric, electrical, electricity, energy, engineering, generator, grid, half tone, high, industrial, industry, infrastructure, line, metal, monochrome, network, outline, paint, plant, pole, power, pylon, shadow, shape, sky, station, steel, structure, supply, technology, tower, transformer, transmission, transmit, transportation, union, utility, view, voltage, watt, wire,