Ключевые слова: background, blue, bolt, box, cable, caution, center, centre, circuit, construction, control, controller, dangerous, electric, electrical, electricity, electronic, energy, engineering, equipment, fuse, green, head, industrial, industry, line, metal, network, outlet, panel, point, power, red, repair, safety, screw, spot, switch, system, technical, technician, technology, voltage, warning, wire, wires, work,