Ключевые слова: alarm, assembling, background, board, box, cabinet, cable, cabling, center, connection, construction, data, electric, electrical, electrician, electricity, engineer, equipment, fire, industrial, industry, installation, installing, instrument, job, maintenance, man, panel, people, plc, power, professional, repair, repairing, repairman, safety, service, system, technical, technician, technology, telecommunications, tool, wire, wiring, work, worker,