Ключевые слова: background, barbed, black, blue, cable, circuit, closeup, coaxial, communication, conductor, connect, connection, construction, copper, cord, curved, electric, electrical, electrician, electricity, electronic, electronics, energy, equipment, flexible, high, industrial, industry, insulation, isolated, line, metal, network, object, plastic, plug, power, safety, spike, steel, supply, tangled, technology, twisted, voltage, white, wire, wired, wires, wiring,