Lifespan (15-20 years): The cable tray lifespan of fiberglass trays typically ranges from 15 to 20 years. They are highly resistant to corrosion, especially in environments like sewage treatment plants, chemical processing facilities, and offshore oil rigs. Your assurance as an engineer should be based on evidence, specifically the Air Thermal Aging Test Report. You need to know how to evaluate three. When you design a cable management system, you are not just choosing a tray—you are deciding how reliable, safe, and maintainable your entire electrical infrastructure will be over the next 20 to 30 years. Durability and longevity Fiberglass. One of the main advantages of FRP Cable Trays is their long service life.