If conductors are installed beneath at least 2 inches of concrete, where are they considered to be?

When conductors are installed beneath at least 2 inches of concrete, they are considered to be inside. This classification is based on the National Electrical Code (NEC) guidelines regarding the location of conductors in relation to building structures. Conductors that are encased in concrete are not exposed and are therefore protected from physical damage. Furthermore, their placement below such a depth means that they are not readily accessible without removing the concrete, which influences their classification.

This classification as being 'inside' indicates that the conductors are considered part of the building's wiring infrastructure rather than being exposed to the outside environment or potentially subject to interference from external factors. This designation affects the application of various NEC requirements regarding installation, protection, and maintenance of electrical systems to ensure safety and compliance.