A comprehensive inspection focuses on evaluating the quality, thickness, adhesion, and overall effectiveness of protective coatings—such as galvanization, paint, epoxy, or powder coatings—applied to metal cable trays. Cable tray inspection is a critical process to ensure system safety, structural integrity, and long-term reliability. From factory production to on-site installation, improper inspection can lead to: This guide provides a complete cable tray inspection checklist, procedure, and standards reference. Inspect galvanizing thickness, coating quality, and material suitability to ensure long-term corrosion resistance in cable tray systems. Tray Sheet Metal Thickness: Typically, the side plates and base plates of cable trays range from 1. Therefore, the local zinc thickness should be no less than 45µm. Zinc rich coating is a common process used for this type of part, and requires only a temperature of 280°C (536°F) or less, either by centrifuging or spraying. There are different methods to check.
