Ключевые слова: background, block, blue, board, box, cabinet, cable, closeup, communication, component, connection, control, data, electric, electrical, electricity, electronics, energy, equipment, fuse, generation, green, indoors, industry, lighting, line, macro, network, node, object, order, panel, part, plastic, plug, power, row, security, supply, switch, system, technology, white, wire,