High voltage power lines are electrical transmission lines that carry electricity at high voltages, typically above 100,000 volts. They are essential for transporting electricity over long distances from power plants to substations, ensuring that homes and businesses receive the energy they need. These lines are often elevated on tall towers to keep them safe from ground interference and to minimize the risk of accidents. The high voltage helps reduce energy loss during transmission, making the process more efficient. Insulators are used to prevent electricity from escaping the lines, while transformers at substations lower the voltage for safe distribution to consumers.