What is a service lateral?

A service lateral refers specifically to the underground conductors that run between the utility supply and the service point of a building. These conductors are crucial because they facilitate the delivery of electric power from the utility company's infrastructure directly to the premises. The service lateral is distinct from other components, as it is designed for under-ground installation and is part of the overall electrical service entry for a property.

The terminology used in electrical systems is precise; "lateral" indicates a side connection, while "service" denotes the electrical service being provided. Understanding the role of the service lateral is essential for those involved in electrical inspections and installations, as it pertains to how safely and efficiently electrical power is delivered from the utility to homes and buildings.

In this context, defining the service lateral in terms of above-ground conductors or main disconnect switches may lead to confusion, as these elements serve different purposes within the electrical distribution system. The overhead conductors connected to service equipment and the main disconnect switch, while crucial components of the electrical system, do not represent the underground connection made by the service lateral, which is a key aspect of the electrical infrastructure.