Fixing cable tray with horizontal support arm

Cable trays can be securely mounted using horizontal cantilever support arms, ensuring proper load distribution and compliance with standards.Choosing the Right Horizontal Support ArmHorizontal support arms, often called cantilever arms, are designed to fix cable trays to walls or other vertical surfaces. They are typically made of steel and come in various sizes and protection finishes to suit different environments and load requirements . For example, a 41x21 mm cantilever arm provides robust support for wire mesh trays, electrical conduits, and other installations, with a total length slightly longer than the tray width to allow separation from the wall .Installation StepsSelect the Mounting Location: Ensure the wall or structure can support the combined weight of the cable tray and cables. Check for compliance with standards such as BS EN 61537 for cable trays .Attach the Cantilever Arm:Use appropriate fasteners for the wall material (e.g., bolts, anchors, or threaded rods).Some cantilever arms allow quick installation with strut clips for wire mesh trays, providing a secure and fast mounting option .Ensure the arm is level and properly aligned with the intended cable tray path.Fix the Cable Tray:Place the tray on the horizontal arm and secure it using bolts or mushroom head fasteners as specified by the tray manufacturer .Maintain proper spacing between supports, typically every 1.5–2 meters for standard loads, or as recommended by the manufacturer.Check Load and Clearance:Verify that the support arm can handle the imposed load, including the weight of cables and any additional equipment .Ensure adequate clearance from walls or other structures to allow cable installation and maintenance.Additional Supports:For longer spans or heavy loads, consider additional cantilever arms or threaded rod suspensions to prevent sagging .Horizontal or vertical changes in tray direction should be supported near joints to maintain stability.Safety and ComplianceOnly use components designed and tested together as a system to ensure safety .Avoid using cable trays as walkways or for supporting personnel.Follow manufacturer specifications for load ratings, spacing, and installation methods to comply with IEC 61537 and local electrical codes . By following these guidelines, cable trays can be securely mounted using horizontal support arms, providing a safe, durable, and compliant installation for electrical and communication systems.