Which type of cable is covered under Article 348?

The correct choice refers to Flexible Metal Conduit, which falls under Article 348 of the National Electrical Code (NEC). This article specifically addresses the requirements and uses for flexible metal conduit (FMC), which is designed to provide protection for electrical conductors in a range of environments. FMC is appreciated for its flexibility, allowing it to be used in areas where rigid conduits cannot be effectively installed due to space constraints or the necessity for movement.

FMC is often used in situations where conditions require a certain level of flexibility and adaptability, such as in industrial spaces or locations where equipment may need to be frequently relocated. Article 348 outlines critical aspects such as proper installation, acceptable environmental conditions, and mechanical protection, ensuring safety and effectiveness in various applications.

In contrast, the other options correspond to different types of conduit or cable that are governed by other articles in the NEC. Intermediate Metal Conduit is categorized differently under the NEC and caters to different requirements, while Mineral-Insulated, Metal-Sheathed Cable and Nonmetallic-Sheathed Cable are also addressed in separate articles, focusing on their unique characteristics, materials, and applications.