Mark the trays and ladders routes as per the approved shop drawing; ensure these are of horizontal & vertical runs only. Maintain enough clearance for cable pulling and any access for future. 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. Automatic routing of cable packets saves time in modelling work MagiCAD's tool for automatic cable packet routing helps avoid overlapping work and frees up time from a repetitive part of the design process. Simply define a start and end point and the tool draws the cable packet route following. On the Cabling tab, in the Cable Tray group, you can use the following tools. You can perform the following to route cable trays in the 3D model. Before routing, consider the following guidelines: Cable tray lines are continuous, consisting of interconnected straight cable tray pieces and. This method statement covers the site installation of the cable tray & ladders and the requirements of checks to be carried out. Cable trays give cables a clear path. We use different types of trays for different jobs: Ladder.