Ключевые слова: board, box, breaker, cabinet, cable, check, circuit, commissioning, construction, contractor, control, current, electric, electrician, engineer, equipment, factory, fuse, hands, industrial, industry, inspection, installation, installing, maintenance, measure, multimeter, operator, panel, power, protection, relay, repair, repairman, safety, service, supply, switch, switchboard, switchgear, system, technician, technology, terminal, test, tool, voltage, wiring, work, worker,