What is a key advantage of using direct bury installations?

The key advantage of using direct bury installations is that they tend to be less expensive than duct systems. This is largely due to the reduction in materials and labor costs associated with constructing, installing, and maintaining duct systems. When using direct bury methods, the cables or conduits can be installed directly into the ground, which eliminates the need for additional structures like ducts or conduits that would typically require more extensive excavation and material expenditure.

This option highlights the economic benefit of direct bury installations, which can be particularly significant for large-scale projects or in areas where budget constraints are a concern. While the other options may present advantages in specific contexts, they do not encapsulate the primary economic benefit that often drives the decision to choose direct bury methods over more traditional installations.