What term is used by the N.E.C. to refer to the underground conductors between the utility electric supply system and the service point?

The term used by the National Electrical Code (N.E.C.) to refer to the underground conductors between the utility electric supply system and the service point is "service lateral." This terminology specifically describes the portion of the electrical supply system that connects the utility’s distribution system to the service point of a building or facility. This connection can be critical for ensuring proper delivery of electrical power, and understanding the definition and requirements pertaining to service laterals is essential for compliance with the N.E.C.

Service laterals typically involve specific installation techniques and requirements to ensure safety, reliability, and code compliance. They are a vital part of the electrical infrastructure, facilitating the transition of electricity from the public utility system to the private electrical system of an individual user.

The other options do not accurately reflect this specific function; for instance, service entrance refers to where the electrical service enters a building rather than the underground run itself. Utility feed is a more generalized term and lacks the specific focus on the underground aspect. Grounding path pertains to safety and grounding requirements rather than the conductors' function in connecting to the supply system. Understanding these distinctions ensures that one can navigate electrical terminology more effectively in the context of the N.E.C.