Cable trays are structural support systems designed to organize, protect, and route electrical cables in industrial and commercial environments. There are several types of cable trays, including ladder, perforated, solid bottom, basket, and channel trays. The Ladder Type is one of the most common, consisting of two side rails connected by rungs. This design maximizes air circulation, which helps manage heat dissipation from high-power. association representing the major electrical equipment manufac-turers in the U. As a professional. According to the National Electrical Code standard of the United States, a cable tray is a unit or assembly of units or sections and associated fittings forming a rigid structural system used to securely fasten or support cables and raceways.