What type of conduit does Article 368 represent?

Article 368 of the National Electrical Code (NEC) specifically addresses busways, which are power distribution systems that consist of a series of conductors housed within a protective enclosure. Busways are utilized for the efficient distribution of electrical power in commercial and industrial settings, allowing for easy installation, maintenance, and flexibility in electrical design.

The provisions in Article 368 cover various important aspects of busway systems, including their construction, ratings, requirements for installation, and handling of current-carrying conductors. This article plays a critical role in ensuring that busways are installed safely and operate effectively within the electrical infrastructure.

In contrast, the other types of conduits mentioned do not fall under the purview of Article 368. For example, Type FMT refers to flexible metal tubing, Type ENT signifies electrical nonmetallic tubing, and Type NUCC is related to nonmetallic underground conduits. Each of these has its own articles in the NEC that govern their installation and use, but they are not addressed in the same section as busways.

Understanding the specific classifications and regulations provided in the NEC is key for electricians, engineers, and inspectors to ensure compliance and safety in electrical installations.