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Ordinary cable tray materials

Fiber and communications infrastructure knowledge brief Published 31 Mar 2023

Prepared for preliminary research by the ENSAA knowledge desk. Confirm optical interfaces, port or core capacity, electrical input and output, enclosure protection, thermal design and installation limits against current standards and product documentation.

Ordinary cable trays are commonly made from steel, aluminum, stainless steel, galvanized steel, and fiberglass-reinforced plastic (FRP).

Common Materials

Steel: Steel is the most widely used material for cable trays due to its strength, durability, and ability to support heavy cable loads without bending or sagging. Mild steel is often coated with zinc through hot-dip galvanizing to prevent corrosion, making it suitable for both indoor and outdoor applications. Stainless steel, containing chromium, offers superior corrosion resistance and is ideal for harsh environments such as chemical plants, marine areas, and food processing facilities.

Aluminum: Aluminum trays are lightweight and naturally resistant to corrosion, making them suitable for indoor and some outdoor applications where weight reduction is important. However, aluminum is less strong than steel and can deform under heavy loads. Galvanized Steel: Galvanized steel trays are coated with zinc to protect against rust and corrosion.

They are commonly used in environments where moderate corrosion resistance is required, including industrial and commercial installations.

Fiberglass-

Reinforced Plastic (FRP): FRP trays combine fiberglass with a plastic resin, offering excellent corrosion resistance, high strength-to-weight ratio, and fire resistance. They are preferred in chemical plants, offshore facilities, and wastewater treatment plants due to their durability and resistance to harsh environmental conditions. Plastic (PVC): Plastic trays are lightweight, corrosion-proof, and cost-effective.

They are suitable for lighter cable loads and environments where chemical exposure is a concern, but they lack the mechanical strength of metal trays.

Summary

The choice of material depends on factors such as load capacity, environmental conditions, corrosion resistance, and cost. Steel and its variants are preferred for heavy-duty and industrial applications, aluminum for lightweight installations, and FRP or plastic for chemically aggressive or highly corrosive environments.

Ordinary cable tray materials - ENSAA OPTICAL NETWORKS [PDF]

Ordinary cable tray materials

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Technical note

This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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