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After watching this video, you will be able to learn how to pass the electrical safety exam at Rostekhnadzor. You can also sign up and undergo retraining in this discipline at our organization: Autonomous Non-Commercial Organization of Additional Professional Education "Educational Center" PetroProf "(ANO DPO "OC" PetroProf ") +7 (812) 441-34-50, +7 (911) 958-958-8 https://vk.com/petroprof http://www.petroprofa.ru/