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. 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. Legrand wiremesh cable trays are resistant to corrosion thanks to the various available surface treatments. There is a solution for each type of environment. This white paper compares the High Resistance (HR) and Hot-Dip Galvanising (HDG) solutions and highlights the new High Resistance range, ZnAl. Cable trays are widely used in industries to manage and protect electrical cables. However, exposure to harsh environments can lead to corrosion, compromising their structural integrity and safety. Cable trays, which provide vital support and protection for electrical wiring, must be chosen with consideration for the. 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 transpos regulations which. The B-Line series Cable Tray Manual was produced by our technical staff.