Among the key guidelines are: Routing telecommunication and electrical cables in separate cable trays, preferably solid (enclosed) metal trays, which additionally protect against interference Recommending crossing cables at a 90° angle to minimize the impact of interference. Among the key guidelines are: Routing telecommunication and electrical cables in separate cable trays, preferably solid (enclosed) metal trays, which additionally protect against interference Recommending crossing cables at a 90° angle to minimize the impact of interference. Cable trays serve as a vital part of modern electrical systems, providing support for cables, pipelines, and other infrastructure. Properly managing cables in these trays ensures the smooth functioning of electrical systems, minimizes downtime, improves maintenance efficiency, and guarantees. Below are the key principles to guide the layout of E&I cable trays, focusing on practical, safety, and efficiency aspects. Separation of Electrical and Instrumentation Cables Electrical on Top, Instrumentation Below: Typically, electrical trays are positioned above instrumentation trays. This. Maintaining proper separation between power, data, and limited energy cabling is foundational to system performance, safety, and code compliance. Separation isn't just an EMI precaution — it protects signaling, reduces rework, and ensures pathways meet inspection expectations across risers. 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. Cable tray layout and section design forms a vital component of detailed engineering in electric and power systems. This process is integral to determining the optimal arrangement and configuration of cable trays, which are essential for routing and supporting electrical cables within buildings and. One key feature in cable tray systems is the use of cable tray dividers. These dividers play a critical role in maintaining organization, ensuring cables are routed separately, and preventing interference.