What type of wire is typically used for underground installations?

Direct-burial cable or conduit systems are specifically designed for underground installations because they provide both protection and insulation suitable for environmental conditions found underground. These cables are constructed with materials that can withstand moisture, soil pressure, and potential physical damage, ensuring that the electrical conductors remain safe and functional over time.

Direct-burial cables are designed to be buried directly in the ground without the need for additional conduit. They often have a tough outer sheath and may also be water-resistant to prevent moisture from affecting the internal conductors. This design minimizes installation complications and enhances safety by reducing the risk of shorts or failures due to environmental exposure.

This choice is preferred in various applications since it simplifies the installation process while ensuring compliance with safety regulations concerning underground electrical systems.