What are service-entrance conductors according to the NEC?

Service-entrance conductors are defined in the National Electrical Code (NEC) as the conductors that connect the service point, which is where the utility's system connects to the building's electrical system, to the service equipment, typically the main panel. This definition highlights the role of service-entrance conductors as a critical link between the utility supply and the infrastructure that distributes electrical power within the building.

Understanding that service-entrance conductors serve this specific function is essential for proper installation and compliance with electrical codes. These conductors are responsible for carrying electricity from the utility to the main service disconnect and can vary in size, type, and insulation rating based on factors such as the service requirements and installation environment.

Other options do not accurately reflect the definition or scope of service-entrance conductors. For example, the implication that these conductors are limited to residential applications, designed solely for outdoor use, or specifically made for managing overcurrent protection diverges from their primary role in connecting the service point to service equipment. Such distinctions are important for ensuring safe and effective electrical installations according to code requirements.