This short shows key steps: cutting sheet metal to size, punching or slotting for wire access, bending edges to form the tray shape, welding joints for strength, and smoothing edges for safety. The purpose of this article is to define the sequence and methodology for the installation of electrical cable trays, cable trunking, cable raceways and boxes, junction and pull boxes. The method gives details of how the work will be carried out andB manufactures its cable tray in a range of materials with a variety of finishes. Aluminum's exceptional corrosion resistance, particularly. Painied after fabrication Pre galvanised GI sheet Hot Dip galvanised after fabrication Straight sections of ladder type cable trays consist of two longitudinal side rails, connected by individual transverse members, or rungs, which are welded to the side rails or bolted in case of GI trays. Perforated rungs on a ladder-type tray securely fasten cables using cable ties. For side rails and rungs, submit cross sectional properties including Section Modulus (Sx) and Moment of Inertia (Ix).
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