Step-by-step on-site guide: learn how to plan, mark, support, and install cable trays correctly, from shop drawing approval to final checks. How about organizing your wiring with a cable tray system? Smart move. But before you lay the first tray or clamp down a single cable. maintain spacing or to keep cables in place when the tray is ect the minimum bend ra-dius for cables as they exit the bottom of the cable tray. A rung spacing of 6 to 9 inches (150 to 230 mm) is preferable when the cable tray cont d for instrumentation and control applications that require. This is the role of the cable tray system—a structured framework designed to support and organize insulated electrical cables, control cables, and communication lines. This guide covers the critical steps, from selecting the right electrical cable tray and performing accurate cable fill. Cable trays, as an important component of modern building electrical systems, play a crucial role in supporting and protecting cable lines, ensuring smooth power and signal transmission. In order to get it right, installers are supposed to adhere to a plan that ensures that wires are kept cool and the building is stable. The beginning of success is to review the Bill of Quantities (BOQ) so that.