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What is an electrician's occupation?

Indoor electricians belong to categories 3 and 4, building electricians to categories 4 and 5, low-voltage electricians to categories 3 and 4, and property electricians to categories 2. Personnel (posts) engaged in industrial production systems such as electric power production and electrical manufacturing, electrical maintenance, construction and installation. People who are engaged in the research and application of objective laws of electromagnetic fields are usually called electrical engineers.