What type of raceway is described in Article 386?

The correct identification of the raceway described in Article 386 is Surface Metal Raceways. This article specifically focuses on the installation and usage of surface metal raceways, which are systems designed for enclosing conductors. They are typically applied in commercial and industrial settings where conductors need to be easily accessible and protected from physical damage.

Surface metal raceways are recognized for their robustness and durability. They provide a protective path for electrical wiring while allowing for easy access to cables and wires for maintenance and modification. This ability to secure and organize electrical conductors is essential in ensuring safety and efficiency within electrical installations.

In contrast, nonmetallic extensions, busways, and cellular concrete floor raceways cover different concepts and applications that aren't explicitly dealt with in Article 386. Nonmetallic extensions focus on different methods of installation and types of materials used for conductor protection. Busways are a different system for distributing electrical power that is not covered under the surface metal raceway specifications. Cellular concrete floor raceways refer to raceway systems integrated into concrete floors and are also outside the scope of Article 386.

Understanding the specific applications and guidelines presented in Article 386 for surface metal raceways is crucial for professionals in the electrical field, ensuring compliance with the National Electrical Code and