Cable tray hanger material requirements

Cable tray hangers are typically constructed from steel, stainless steel, or galvanized steel to ensure mechanical strength, corrosion resistance, and compliance with industry standards.

Common Materials

Steel: Mild or carbon steel is widely used for cable tray hangers due to its high mechanical strength and cost-effectiveness. Steel hangers are often coated with zinc or other galvanization layers to improve corrosion resistance, especially in industrial or outdoor environments . Stainless Steel: Stainless steel hangers are preferred in environments with high humidity, chemical exposure, or corrosive conditions. The passive layer of stainless steel protects against rust, making it suitable for long-term installations where durability is critical . Galvanized Steel: Hot-dip or electro-galvanized steel provides a protective zinc coating that prevents corrosion. This is commonly used in standard industrial installations where moderate corrosion protection is required . Other Materials: In some specialized applications, aluminum or plastic-coated steel may be used for lightweight or non-conductive requirements, though these are less common in heavy-duty industrial settings .

Design Considerations

• Support Spacing: The distance between hangers (support elements) must be calculated based on the cable tray load and environmental conditions. Standard support spacing ensures the tray can safely carry the intended cable weight .
• Mounting Methods: Hangers can be attached to ceilings, walls, or floors using cantilever brackets, threaded rods, or ceiling brackets. The choice of material must be compatible with the mounting hardware and installation environment .
• Environmental Factors: Exposure to moisture, chemicals, or temperature extremes influences material selection. Stainless steel or properly galvanized steel is recommended for corrosive or outdoor environments .

Standards Compliance

Cable tray hangers and support systems are designed according to standards such as DIN EN 61537 and BS EN 61537, which specify material requirements, mechanical strength, and installation practices . Using materials that meet these standards ensures safety, reliability, and longevity of the cable management system. In summary, steel, stainless steel, and galvanized steel are the primary materials for cable tray hangers, chosen based on load requirements, environmental conditions, and compliance with industry standards. Proper selection ensures structural integrity, corrosion resistance, and safe cable support.