5mm copper earth bonding straps externally between all length of Cable Tray / Trunking & cable ladder and provide a copper bending straps across each joint; fixed with independent mushroom headed electro-plated bolts, nuts and serrated washers. An Electrical cable tray is a type of a containment used to support insulated electrical cables used for power distribution, control, and Technical Specifications for Cable Tray Systems: Selection Chapter 1 Overview of Cable Tray Systems and Technological Development Background In modern. A cable tray system is an assembly of metallic cable tray sections and accessories, that forms a rigid structural system to support cables. As technology advances, so too does the need for effective support systems. Today, plants and buildings are moving more and more towards automation. Requiring. , is a welded wire-mesh cable management system made of high-strength steel wire. It is a system that facilitates the transportation of cables and ensures that they are neatly arranged according to cable density. Tool Required: On receipt of the cable tray, trunking, cable ladder and accessories at site necessary precautions shall. Method Statement installation of Cable Trays and Ladders - Planning Engineer FZE.