Which type of cable is classified under Article 330?

The correct answer is Type MC. Article 330 of the National Electrical Code (NEC) specifically addresses Metal-clad (MC) cables. These types of cables feature an outer metallic sheath and are used primarily for building wiring, providing physical protection against the environment and potential damage. They can be installed in a variety of locations, including indoors and outdoors, and are suitable for residential, commercial, and industrial applications.

Type MI (Mineral Insulated) cables, while also specified in different articles of the NEC, do not fall under Article 330. Type TC (Tray Cable) is under a separate section focusing on the specific requirements for cables designed for installation in cable trays. Type SE (Service Entrance) cables serve a different purpose as they are designated for service entrance applications, which also places them outside the scope of Article 330. Thus, Type MC correctly aligns with the classification outlined in Article 330, highlighting its purpose and design specifications.