Underground cables are electrical cables that are buried beneath the ground to transmit electricity or telecommunications signals. They are designed to be more durable and less susceptible to weather-related damage compared to overhead lines. This makes them a popular choice in urban areas where space is limited and aesthetics are important. These cables are typically made of materials like copper or aluminum for conductivity, and they are insulated to prevent electrical leakage. Utility companies often use underground cables to improve safety and reliability, as they reduce the risk of outages caused by storms or falling trees.