Splice plates are the most widely used method for connecting cable tray sections in straight runs. We fix them with nuts and bolts through the holes in the plate and the tray sides. How to make wall support and ground installation for cable trays with end bracket? - YouTube How to make wall support and ground installation for cable trays with end bracket? If playback doesn't begin shortly, try restarting your device. Establishing partnerships. 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. Cable trays are essential for safely organizing cables along walls or ceilings, especially in industrial or commercial spaces. At SV Electricals, we have crafted. This guide provides step-by-step instructions on installing a cable tray on a wall, covering different types of cable trays, tools needed, and safety tips.