SELCAT Being An Outside Lineman A Career You Can Be Proud Of. Outside Linemen primarily install and maintain the overhead distribution and transmission lines that move electrical power from power plants to local consumers such as businesses homes and factories. They also install and maintain poles and towers underground systems and substations that are required to power communities. Continue Reading Training Facility SELCATservices Alabama Arkansas Florida Georgia Louisiana Mississippi North Carolina South Carolina and Tennessee with its 32000squarefoot training facility with smart classrooms labs dorms and administrative offices.