Step-by-step on-site guide: learn how to plan, mark, support, and install cable trays correctly, from shop drawing approval to final checks. en completely installed, without damage either to conductors or structural system use 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. Instrumentation cable trays are critical for organizing and protecting electrical and signal cables in industrial environments. The process described here takes a systematic approach to ensuring that cable tray installations meet safety, reliability, and project-specific needs while following to. The B-Line series Cable Tray Manual was produced by our technical staff. It ensures that all installation activities follow authorized plans, specifications, and standards. This compliance is not merely a regulatory formality; it significantly enhances the safety and reliability of the electrical system, ensuring that installations can pass inspections and function. Whether you're building a commercial setup or upgrading an industrial plant, proper cable tray installation ensures neat wiring, safe access, and easy maintenance. This guide breaks down the process step by step.