Special corner supports or guides can help the cables make those turns smoothly without any strain. We need to be mindful of these. 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. It is designed for. 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. The screw-on cable tray systems fulfil the requirements of "IEC 61537:2006 – Cable management – Cable tray systems and cable ladder systems” for the low-voltage area. Since the jaws of the bolt cutter drags a layer of zinc across the cut end and forms a protective layer.