What is the primary function of service-entrance conductors in an overhead system?

Service-entrance conductors play a crucial role in the electrical distribution system, particularly in overhead setups. Their primary function is to link the service drop or overhead service conductors to the electrical service equipment within a building or facility. This connection allows for the safe and efficient transfer of electrical power from the utility company to the building’s electrical system.

When the overhead service conductors deliver electricity down to the service-entrance conductors, this transition is essential for supplying power to all circuits and devices within the structure. The service entrance is where the electrical system begins, making these conductors vital for establishing a safe entry point for electricity into the premises.

In context, choices that involve connecting to underground conductors or providing lighting are not the main functions of service-entrance conductors. Similarly, acting as a general-use switch does not define the role of these conductors, which are specifically meant for making that essential connection between the overhead service and the building's system.