What is the typical transmission voltage range for high-voltage power lines?

High-voltage power lines are specifically designed to transmit electrical energy over long distances with minimal losses. The typical transmission voltage range for these lines spans from 138,000 volts (138 kV) to 765,000 volts (765 kV). This range is considered standard for high-voltage transmission systems and is utilized for the efficient movement of electricity from generation sites (like power plants) to substations. Transmission voltages above 100 kV are generally classified as high voltage, and as the voltage level increases, the capacity for transmission grows, thereby allowing utilities to meet the demands of widespread and densely populated areas. Lower voltage ranges tend to be used for distribution rather than transmission because they are not suited for long-distance transport without incurring significant energy losses due to resistance in the conductors.