Conduit systems are enclosed pipes that require precise bends, threading, and pulling. Cable trays, on the other hand, create an. The decision on whether to use a cable tray or a conduit lies on the scale of the job as well as the amount of heat the wires will generate. Both can meet code, but they behave very differently in cost, maintenance, scalability, and safety. This analysis evaluates. A cable tray is an open system used to store and manage cables in a tray with open pores or mesh in the bottom, allowing easy ventilation and thus preventing the overheating of cables. They provide an open and flexible route for running multiple cables throughout a facility.