What does Article 502 address in relation to hazardous locations?

Article 502 specifically deals with Class II locations, which are areas where combustible dust may be present in the air under normal operating conditions in sufficient quantities to pose a hazard. These locations can include grain elevators, flour mills, and other similar environments where dust can accumulate and create an explosive atmosphere.

This article provides detailed requirements for electrical installations in these hazardous areas to ensure safety and minimize the risk of explosion or fire. It outlines standards for equipment, wiring methods, and installation practices that need to be followed to mitigate hazards associated with combustible dust. Understanding the specifications set forth in Article 502 is essential for professionals working in industries related to these types of hazardous locations to ensure compliance with safety regulations.