What is the focus of Article 320?

Article 320 of the National Electrical Code (NEC) specifically addresses armored cable, commonly referred to as Type AC cable. This article outlines the requirements for the installation, construction, and application of armored cables, which are designed to contain conductors that are protected by a metallic sheath. The provisions within this article ensure that those using Type AC cables adhere to safety and performance standards, thereby facilitating secure and effective electrical installations in various environments.

While the other options refer to different categories of wiring and cable types, none pertain specifically to the subject matter covered under Article 320. Conductors for General Wiring encompass broader regulations not limited to armored cable. Flat Cable Assemblies and Integrated Gas Spacer Cable fall outside the scope of Article 320, as they are addressed in other specific articles of the NEC. Thus, the choice regarding armored cable is the correct focus concerning this NEC article.