1. High electrical conductivity: Metals are excellent conductors of electricity. This means they can carry large currents with minimal loss of energy due to resistance. This is essential for transmitting electricity efficiently over long distances.
2. High tensile strength: Metals are generally strong and durable, able to withstand significant pulling forces. This is crucial for overhead cables, as they need to support their own weight and resist the forces of wind and weather.
These two properties, high conductivity and high tensile strength, make metals the preferred choice for overhead power lines.
