Which of the following is covered in Article 513?

Article 513 of the National Electrical Code (NEC) specifically addresses the requirements for aircraft hangars. This article outlines the unique electrical needs and safety measures that must be considered when working in environments where aircraft are stored and maintained. It includes guidelines on the classification of hazardous locations due to flammable vapors from aircraft fuel, as well as requirements for equipment, wiring methods, and installation practices that ensure safety and compliance in these specialized settings.

The inclusion of aircraft hangars in this article recognizes the specific risks and operational considerations inherent to aviation facilities. The NEC provides clarity and direction for electricians and other professionals working in environments where safety is paramount, ensuring that electrical installations can withstand the conditions present in such settings.

Other choices, while they fall under different categories of electrical installation, do not pertain to the specific guidelines and safety standards outlined in Article 513. Each of those facilities—commercial warehouses, power generation facilities, and residential garages—would be covered by other articles in the NEC that address their unique requirements.