Carbon steel used for cable trays shall be protected against corrosion by the following processes: Hot-dip galvanized zinc after fabrication in accordance with ASTM A123/A123M, Coating Grade 65 with an average zinc coating weight of 460 g/m2 per side or coating thickness of 0. Covers for all steel trays will also be. , ABB offers steel cable tray with pre-galvanized and hot-dip galvanize lvanization is an economical and effective way to protect steel ag tal, naturally oxidizes when exposed to air, but at a much slower rate than steel. Zinc pro-vide sacrificial protection, which means that it cor-rodes while. The material of a cable support system is normally steel or stainless steel. Various galvanisation surfaces can be applied to improve corrosion protection. A cable support system consists of cable support lengths and system components, such as cable support fittings, support elements, mounting. 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. 14 gauge structural quality steel meeting the minimum mechanical properties of ASTM A1011 SS, Grade 33 and shall. Not all cable trays are equivalent. The mechanical and electrical characteristics, tests, certifications, overall quality management, recommendations mentioned in this technical guide only apply to our own cable management ranges and cannot under any circumstances be transposed to similar or.
