L-shaped bracket installation of cable trays

L-shaped brackets are used to securely mount cable trays to walls, providing stable support and proper spacing for cable management.

Selecting the Bracket and Tray

Choose an L-shaped bracket compatible with your cable tray type—for example, wire mesh trays measuring 150–300 mm in width often use powder-coated metal brackets like the SmartRack SRWBWALLBRKT, which snap into the tray and mount to the wall with user-supplied hardware (Eaton) . Ensure the bracket material and finish are suitable for the environment, considering factors like corrosion resistance and mechanical load .

Tools and Materials Needed

• Drill and appropriate wall anchors or bolts
• Level and measuring tape
• Screwdriver or wrench for fastening
• L-shaped brackets
• Cable tray sections

Installation Steps

1. Mark the Wall: Determine the desired height and alignment of the cable tray. Use a level to ensure horizontal placement.
2. Position Brackets: Place L-shaped brackets along the wall at recommended intervals, typically every 1.5 meters (approximately 5 feet) for standard support .
3. Secure Brackets: Drill holes and attach the brackets using suitable anchors or bolts for the wall type. Ensure brackets are firmly fixed to support the tray and cable load.
4. Mount the Tray: Lift the cable tray section and snap or bolt it onto the L-shaped brackets. Confirm that the tray is level and fully supported along its length.
5. Check Alignment and Clearance: Maintain proper spacing between trays and walls, and ensure the minimum bend radius for cables is respected to prevent damage .
6. Repeat for Additional Sections: Continue installing brackets and tray sections along the route, including any bends, T-pieces, or vertical transitions as needed .

Safety and Best Practices

• Only use components designed and tested together to ensure safe load-bearing capacity .
• Cable trays are not intended to support people; avoid using them as walkways .
• Verify that the wall and mounting hardware can handle the combined weight of the tray and cables.
• Follow relevant standards such as BS EN 61537 for cable tray systems . By following these steps and best practices, L-shaped brackets can provide a secure, compliant, and efficient support system for cable trays in industrial, commercial, or data center installations.