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. There are five common ways to fix the cover plate of cable tray elbow supplier: pressing plate fixing, screwing fastening, clasping fixing, padlock fixing and seven-shaped buckle fixing. When mounting these trays, consider the following options: Wall-Mounted Brackets: This is one of the most common and effective methods. Benefits: Quick to install: No special tools are needed. The Cable Tray ng standards, performance standards, test standards and application in this document have been tested extens ompetent professional en completely installed, without damage either to conductors or. OBO BETTERMANN has offered prod-ucts and solutions for electrical instal-lation for over 100 years.