Right-angle connection diagram of mesh cable tray

Right-angle bends in mesh cable trays are formed using specialized 90° elbow brackets and splices to maintain cable support and prevent damage.

Creating a Right-Angle Bend

Mesh cable trays are designed with flexible wires that allow for easy bending and branching, including 90° turns, without compromising structural integrity or cable protection . To form a right-angle inside a mesh tray:

1. Cut and Prepare the Tray Ends: Remove a section of the sidewalls and bottom wires at the ends of the two tray sections that will form the corner. Typically, cut away at least four cross wires from each end to allow bending .
2. Form the Elbow: Fold the tray pathway on top of itself to create a 90° elbow. Ensure the bend is smooth to avoid sharp edges that could damage cables .
3. Install Intersection Brackets: Use a Radius Intersection 90 Bracket to protect cables as they transition around the corner. This bracket can be used with a single pathway or by joining two tray sections .
4. Secure with Splices: Attach the bottom and back corners using bolt-on splices (e.g., PWBSPL) and hardware kits (e.g., PWBHK) to firmly secure the elbow and maintain alignment .
5. Check Clearance and Support: Ensure the horizontal section of the tray has at least two open spaces on both sides of the sidewall to allow proper cable placement and support .

Best Practices

• Support Placement: Place supports at the start and end of the 90° bend to prevent deflection and maintain load capacity .
• Cable Protection: Avoid sharp bends; the radius of the elbow should accommodate the minimum bend radius of the cables being routed .
• Material Considerations: Mesh trays are available in galvanized steel, stainless steel, or powder-coated finishes. Choose a material suitable for the environment to prevent corrosion at the bend .
• Splice Positioning: For optimal mechanical performance, splices should be positioned according to manufacturer recommendations, typically at the ends and along the bend . By following these steps, a right-angle bend in a mesh cable tray can be safely installed, maintaining both structural integrity and cable protection while allowing for flexible routing in complex installations.