This AutoCAD DWG file provides a comprehensive cable tray installation plan, featuring detailed support rod, duct, and expansion joint specifications. Save time and. ABB is a leading force in the cable tray systems industry. Far superior to traditional conduit in many applications, cable tray systems offer unparalleled accessibility for maintenance. At its heart, Cable Tray Design, Layout means choosing and setting up cable trays to hold and protect electrical and data cables. Cable trays give cables a clear path. Perfect for electrical engineers and contractors, this plan ensures an efficient and organized cable management system for commercial and industrial. Whether you're building a commercial setup or upgrading an industrial plant, proper cable tray installation ensures neat wiring, safe access, and easy maintenance.