Ключевые слова: adult, board, box, cabling, carefully, caution, checking, circuit, closeup, components, concept, construction, control, current, distribution, electrician, electricity, energy, engineer, equipment, fuse, gloves, handling, hands, industrial, installation, job, maintenance, male, man, multimeter, panel, person, power, precision, professional, repair, repairman, safety, service, switchboard, technical, technician, technology, testing, tool, voltage, wire, worker, working,