Which type of conduit is mentioned in Article 348?

Article 348 of the National Electrical Code (NEC) specifically addresses Flexible Metal Conduit (FMC). This type of conduit is recognized for its flexibility and is often used to protect conductors in installations where bending or movement may be necessary. Flexible Metal Conduit is valuable in commercial and industrial settings, allowing for ease of movement and adjustment while providing a degree of physical protection to the wires it encases.

The characteristics of FMC, such as being lightweight and easy to install, make it an essential choice for certain applications, including connecting equipment that may need to be repositioned or that experiences vibrations. This article outlines the permissible uses, installation requirements, and design features that are critical for ensuring safety and compliance with electrical standards. Understanding the specifics of Flexible Metal Conduit helps electricians make informed choices when selecting conduit types for various projects.