Today, the Fiber Optic Splice Closure manufacturer introduces what is a cable tray? 1. Trough cable tray is a fully enclosed cable tray, which is most suitable for shielding interference of control cables for laying computer cables, communication cables, thermocouple cables, and other highly sensitive systems, and for cable protection in heavy corrosive environments. For better results, consider galvanizing for surface treatment when slotted straight is used for shielding. 2. Pallet cable tray is the most widely used in petroleum, chemical, electric power, light industry, television, telecommunications, etc. It has the advantages of a lightweight, large load, beautiful appearance, simple structure, and convenient installation. It is used for the installation of power cables and also for the laying of control cables. 3. Trapezoidal cable tray has the advantages of a lightweight, low cost, unique shape, convenient installation, heat dissipation, and good air permeability. It is suitable for laying general straight and light cables, especially suitable for laying high and low power cables.