When gas pipe is installed underground, it is typically what?

When gas pipe is installed underground, it is typically encased in approved conduit to provide additional protection. The use of conduit helps safeguard the gas pipe from physical damage and environmental factors such as moisture and corrosion. This is crucial for maintaining the integrity of the gas supply and ensuring safety.

The installation of gas pipes in conduit also makes it easier to replace or repair the pipes without extensive excavation, as the conduit can be accessed more easily if issues arise. Additionally, using approved conduit complies with safety codes and regulations that govern the installation of gas piping systems.

Burial directly in soil without any protective sheath could expose the piping to damage from soil movement, sharp rocks, or other underground hazards, which is why this option is not typically recommended. Wrapping in insulation is generally not a practice used for gas lines to prevent freezing but rather for water pipes where heat loss is a concern. Connection to above-ground pipes is not directly relevant to how the underground pipes are installed, focusing instead on how they transition to the above-ground installations.