Article 392 of the NEC deals with which type of installation?

Article 392 of the National Electrical Code (NEC) specifically addresses cable trays. These trays serve as a support system for multiple types of conductors, including power and communication cables. The article provides guidelines regarding the installation, materials, and usage of cable trays to ensure safe and effective wiring practices.

Cable trays are used in various applications, particularly in commercial and industrial settings, where they provide a way to manage and support the large number of cables and conductors required. The code outlines requirements regarding the load, spacing, and configuration of the trays, as well as fill capacity and fire resistance, ensuring that installations meet safety and operational standards.

This understanding of Article 392 is vital for electrical professionals, as it ensures compliance with safety regulations and proper functioning of electrical systems utilizing cable trays.