When working on high-voltage lines, electrical linemen take a number of precautions to ensure their safety. First and foremost, they wear personal protective equipment such as rubber gloves, sleeves, and boots to insulate them from the electrical current. They also use specialized tools and equipment designed for working on high-voltage lines, such as insulated ladders and hot sticks. Additionally, they follow strict safety protocols and procedures, such as de-energizing the lines before beginning work and using proper grounding techniques. The interviewer wants to hear that you prioritize safety and see what measures you take to ensure your safety on the job.