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What are the materials used for mesh cable trays

Fiber optic splice closure knowledge brief Published 15 Aug 2020

Prepared for preliminary research by the RIVO OPTICAL knowledge desk. Confirm cable count, splice capacity, sealing class, tray layout, protection sleeves and installation requirements against current standards and product documentation.

Mesh cable trays are commonly made from galvanized steel, stainless steel, aluminum, or fiberglass reinforced plastic (FRP), each chosen based on load, environment, and installation needs.

Common Materials

1. Galvanized Steel Galvanized steel is one of the most widely used materials for wire mesh cable trays. It is robust, cost-effective, and durable, with a zinc coating that protects against rust and corrosion. This makes it suitable for indoor environments with moderate moisture or outdoor installations where some exposure to humidity occurs. Galvanized steel trays are often used in industrial settings to support low to medium voltage cables and fiber optic installations .

2. Stainless Steel Stainless steel offers superior corrosion resistance and strength, making it ideal for harsh environments, such as chemical plants, coastal areas, or high-temperature applications. It is more expensive than galvanized steel but provides long-term reliability and is often used in food processing facilities or areas requiring sanitary conditions .

3. Aluminum Aluminum is lightweight, non-corrosive, and easy to handle, making it suitable for commercial buildings, data centers, and office spaces. It supports low to medium voltage cables and is preferred where ease of installation and reduced weight are important. Aluminum trays are also resistant to rust, which is beneficial in indoor environments with minimal chemical exposure .

4. Fiberglass Reinforced Plastic (FRP) FRP is a non-metallic, corrosion-resistant, and lightweight material, ideal for highly corrosive environments, such as chemical plants, marine installations, or areas with extreme moisture. FRP trays are non-conductive, which adds an extra layer of electrical safety in sensitive installations .

Material Selection Considerations
  • Load Capacity: Steel and stainless steel are preferred for heavier cable loads, while aluminum and FRP are suitable for light to medium loads.
  • Environmental Conditions: Stainless steel and FRP are best for corrosive or outdoor environments, whereas galvanized steel and aluminum are suitable for indoor or less aggressive conditions.
  • Installation Flexibility: Wire mesh trays are highly flexible and easy to shape, and the choice of material affects ease of cutting, bending, and forming tees or drops on site .
  • Cost vs. Durability: Galvanized steel and aluminum are cost-effective, while stainless steel and FRP offer long-term durability in challenging environments.

By selecting the appropriate material based on load, environment, and installation requirements, mesh cable trays can provide efficient, safe, and long-lasting cable management for a wide range of applications .

What are the materials used for mesh cable trays - RIVO MULTITRADE OPTICAL SYSTEMS [PDF]

What are the materials used for mesh cable trays

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Technical note

This reference is intended for preliminary fiber optic splice closure research. Compatibility, splice capacity, sealing class, tray layout, protection sleeves, installation methods, test limits and applicable standards must be verified for the specific project.

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