What is the focus of Article 320?

Article 320 of the National Electrical Code (NEC) specifically addresses Armored Cable, also known as Type AC cable. This type of cable is designed for use in a variety of installations where protection against mechanical damage is necessary. The armored layer provides a level of physical protection to the conductors inside, making it suitable for applications in areas subject to potential hazards, such as industrial or outdoor settings.

The requirements detailed in Article 320 cover aspects such as permissible uses, installation guidelines, and construction specifications for Type AC cable. This ensures that installations conform to safety standards, thereby reducing the risk of electrical hazards.

Other options may reference various types of conductors or cable assemblies, but they do not pertain specifically to the protective aspects and applications of armored cable, which is the primary focus of Article 320. Understanding the specific provisions and applications outlined in this article is crucial for ensuring safe and compliant electrical installations involving armored cable.