Use this guide to learn the most effective installation practices when installing Cablofil tray. The bends, tees, crosses, risers and reducers of wire mesh cable tray can be easily and quickly made live at the project by using a bolt cutter. Since the jaws of the bolt cutter drags a layer of zinc across the cut end and forms a protective layer. When a wire cable tray is cut, the fact that a. The method for producing bridge bend elbows is as follows: Take a 90-degree cable tray bend elbow as an example, and apply the same principles for 45-degree bends accordingly. and requires no additional bonding or jumpers for UL compliance.