The end of the cable tray is attached to the wall or the floor with two end brackets (RÄF). The end bracket is fixed to the shelf using the screw set included with the end bracket. Need more information?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. Fittings can, on the one hand, be used for horizontal or vertical changing of the routing direction or, on the other, to change the height or width of the. This method statement covers the site installation of the cable tray & ladders and the requirements of checks to be carried out. Of course. Regarding cable management, the fixing and mounting you choose for your cable trays can make or break your setup.