Which of the following is a focus of Article 386?

Article 386 of the National Electrical Code (NEC) specifically addresses the requirements for surface metal raceways. Surface metal raceways are designed to provide a means for routing electrical conductors in applications where it's important to have visible and accessible pathways for wiring, often in commercial or industrial settings. This article outlines installation practices, ratings, and general requirements that ensure both safety and functionality when using surface metal raceways.

The focus of Article 386 is on how these raceways need to be constructed, installed, and maintained in order to protect the conductors inside from physical damage while also providing a neat appearance. Compliance with these regulations helps to prevent electrical hazards and ensures that the installation is code-compliant. In the context of raceways, surface metal raceways are distinguished from other types, such as cellular metal floor raceways or multioutlet assemblies, which are addressed in other sections of the NEC. Understanding the focusing principles of Article 386 is crucial for electricians and designers to ensure proper and compliant electrical installations.