Which article in the NEC provides requirements for agricultural buildings?

Article 547 of the National Electrical Code specifically addresses the requirements for agricultural buildings. This article outlines electrical installations in structures used for farming operations, including barns, silos, and other farm-related buildings. It includes guidelines on safety, equipment, wiring methods, and the unique aspects of working with agricultural environments.

This distinction is important because agricultural buildings often have specific needs, such as moisture concerns, the presence of livestock, and the operation of farm machinery, which can affect electrical installations. By focusing on these requirements, Article 547 ensures that the electrical systems installed in these buildings are safe and appropriate for their particular use, helping to prevent electrical hazards inherent in agricultural settings.

The other articles listed pertain to different types of structures or applications: Article 550 deals with mobile homes, Article 540 focuses on recreational vehicles and their specific requirements, and Article 517 covers health care facilities. Each of these articles has its unique focus, making Article 547 the correct choice for agricultural buildings.