Which article encompasses theaters and audience areas of motion picture studios?

Article 520 of the National Electrical Code (NEC) specifically addresses the requirements for theaters and audience areas of motion picture studios. This article includes provisions related to electrical installations in spaces used for entertainment, which can incorporate intricate lighting, sound systems, and stage equipment necessary for performances and film production.

It is crucial to consider this article when dealing with any electrical work in theaters or similar venues because it outlines safety and performance standards necessary to protect both the audience and the performers. The regulations include aspects related to wiring methods, equipment installation, and maintenance to ensure safe operational conditions in such unique environments.

The other articles mentioned pertain to different aspects of electrical installations: Article 530 deals with motion picture and television studios but does not specifically address audience areas. Article 545 covers requirements for manufactured buildings, while Article 550 discusses mobile homes. Therefore, these articles do not apply to the specific context of theaters and audience areas within motion picture studios, making Article 520 the correct choice.