What is the focus of Article 374 in the NEC?

Article 374 of the National Electrical Code (NEC) specifically addresses cellular metal floor raceways. The purpose of this article is to establish the requirements and guidelines for the use, installation, and maintenance of cellular metal floor raceways, which are raceway systems that are integrated into the floor and designed for the purpose of routing electrical wiring and providing power and data distribution.

Cellular metal floor raceways are particularly advantageous in commercial and industrial settings where frequent changes in layout or electrical service are common. The regulations outlined in Article 374 cover aspects such as construction, support, and compatibility with other electrical systems to ensure safety and functionality.

The other choices pertain to different types of raceways governed by other articles. Metal wireways, nonmetallic wireways, and surface metal raceways each have their own specific requirements that are not covered under Article 374, further confirming the unique focus of this particular article on cellular metal floor raceways.