Ключевые слова: background, block, bus, cable, circuit, clamp, clamping, clip, communications, connection, connector, construction, contact, control, copper, distribute, electric, electrical, electricity, electronic, energy, equipment, group, hole, industry, insulate, large, line, material, metal, object, outlet, panel, pieces, plastic, power, red, screw, section, socket, spare, steel, support, system, technology, terminal, tool, traces, white, wire,