When cable trays pass through walls or floors, seal openings using fire-rated penetration sealing materials. Do not modify or damage the tray coating or structure during use. In instrumentation EPC (Engineering, Procurement, and Construction) projects, installing cable trays is very important for making sure that signals are sent reliably, that people are safe, and that systems work well for a long time. The process described here takes a systematic approach to ensuring that cable tray installations meet safety, reliability, and project-specific needs while following to. Installing instrument cable trays properly and in compliance with relevant standards is crucial to ensure safety, functionality, and durability.