The service equipment disconnect for a manufacturing building shall be installed at a readily accessible location either outside or inside ___ entrance of the service conductors.

• A. Nearest the point of
• B. At a maximum of 6 ft. from the
• C. At a maximum of 10 ft. from the
• D. At a maximum of 25 ft. from the

Answer: (A)

The main idea here is that the service disconnect must be readily accessible and located as near as possible to where the service conductors enter the building. This placement ensures a quick, clear means to shut off power for safety and maintenance and complies with the requirement that the disconnect be at a readily accessible location either outside or inside near the point of entrance of the service conductors. Fixed distances from the entrance (such as 6 ft, 10 ft, or 25 ft) are not stipulated; the important factor is proximity to where the conductors enter, so the disconnect can be reached without navigating long runs or obstacles.