Confirm cable tray material and type are as per the design. Review safety protocols and ensure PPE is available for all workers. Check cable tray sections for. The process described here takes a systematic approach to ensuring that cable tray installations meet safety, reliability, and project-specific needs while following to international standards including IEC 60364, IEEE, and IEC 60079 for hazardous locations. Ensure safe and compliant installation. Cable tray installation. Cable tray installation quality is crucial for the safe and efficient operation of power, communication, and other electrical systems.