In addition to this danger, the voltages in electric power lines are lethal. Employment Line installers and cable splicers held about 309,000 jobs in 1996. More than half were telephone and cable television line installers and repairers. Nearly all worked for telephone, cable television companies, or electric power companies, or for construction companies specializing in power line, telephone, and cable television construction. Training, Other Qualifications, and Advancement Line installers are often hired as helpers or ground workers.
Most employers prefer high school graduates.
Many employers test applicants for basic verbal, arithmetic, and abstract reasoning skills. Some employers test for physical ability such as balance, coordination, and strength and mechanical aptitude. Because the work entails a lot of climbing, applicants should have stamina and must be unafraid of heights. Knowledge of basic electricity and training in installing telephone systems obtained in the Armed Forces or vocational education programs may be helpful. The ability to distinguish colors is necessary because wires and cables are usually coded by color.