Ключевые слова: background, box, breaker, button, closeup, color, connection, construction, control, electric, electrical, electricity, energy, equipment, fuse, hand, image, industry, isolated, knob, line, machine, metal, nobody, object, off, old, panel, person, plant, power, push, red, retro, safety, service, shape, sign, single, switch, technology, white, working,