Splice plates for system assembly come in six variations designed for specific applications: straight, expansion straight, fixed angle horizontal, fixed angle vertical, horizontal adjustable and vertical adjustable. Fiberglass splice plates for cable tray systems. Is your cable tray system optimized for safety, dependability, space and cost savings? Cable tray (or cable ladder) systems are a popular alternative to electrical conduit systems, as they have an outstanding record for dependable service, design flexibility and cost savings in commercial and. 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 the cable tray cont d for instrumentation and control applications that require. Hubbell's NEXTFRAME® Ladder Tray is the effective and widely used cable runway that supports and delivers bundles of cable between cabinets, racks, and closets, along walls, and suspended from ceilings. The Ladder Tray features light, rugged, tubular steel construction. Eaton's submittal builder tool. The Cope-GLAS Cable Tray System offers a full line of fiberglass accessories to suit any application. Accessories must be ordered individually to complete the system. In this guide, we will explore everything about joint plates.