Ключевые слова: at work, background, builder, closeup, construction, direct current, dwelling, electric equipment, electrician, electricity, energy, equipment, fixing, from above, home, implements, industrial, industry, install, isolated, manpower, measurement, measuring instrument, multimeter, object, occupations, profession, professional, protection, repair, safety at work, set, technician, technology, tester, tighten, tool, tools isolated, voltage, white, work, worker,