Ключевые слова: adult, apprentice, build, builder, construction, contractor, control, craft, device, electric, electrical, electrician, electricity, engineer, engineering, examining, expertise, fuse, helmet, house, indoor, industry, instrument, job, maintenance, male, man, measurement, panel, person, power, profession, professional, protection, repairing, repait, safety, secutity, service, switchboard, technician, tool, wall, wire, wiring, women at work, work, worker, working,