What is the primary purpose of using boxed or conduit bodies at direct-burial conductors?

Using boxed or conduit bodies at direct-burial conductors mainly serves the purpose of providing an accessible connection point. This is essential in electrical installations because it allows for maintenance, troubleshooting, and possible future modifications to the wiring system without the need to excavate or disturb the ground. The accessibility facilitates easier repairs and ensures that connections can be inspected regularly, enhancing the reliability and safety of the electrical system.

While protecting against moisture is important, the primary purpose of installing conduit bodies is not primarily moisture protection but rather access for connections. Support for heavy loads is not a relevant function of conduit bodies concerning direct-burial conductors. Similarly, signaling circuit integrity is an operational characteristic, but does not pertain to the physical connection and accessibility these bodies provide. Thus, the function of ensuring that connections are accessible when needed is the crux of using boxed or conduit bodies in this context.