What do service-entrance conductors connect to in an underground system?

In an underground electrical system, service-entrance conductors play a crucial role in connecting the electrical service provided to a building or facility. The correct answer involves understanding the function and terminology specific to underground installations.

Service lateral refers to the underground conductors that extend from the utility's distribution system to the service point of the premises. This is the connection that delivers electricity from the utility's network directly to the point where the electrical service enters the building. In an underground setup, these conductors provide the necessary link taking the electrical supply underground, thus enabling a seamless transition to the service point without above-ground lines.

The other options refer to different components or connections within an electrical system. The service drop typically refers to overhead power lines, which are not applicable in an underground context. The service point is the exact location where the utility's supply ends and where the service lateral begins, making it a part of the infrastructure rather than the connection itself. Service equipment refers to the devices and panels used to distribute electrical power once it has reached the building, rather than the conductors that bring the service from the utility to the building.