Mesh cable tray cable holder cable entering the cabinet

Cables from a mesh cable tray should enter the cabinet through a secured, protected exit using support brackets, edge protection, and proper bundling to ensure safety and organization.

Planning and Preparation

Before routing cables into a cabinet, plan the tray route carefully using CAD or BIM models to mark bends, risers, and exit points. Calculate the total cable load to select the appropriate tray width and support spacing, typically 1.5–2.5 meters for mesh trays, ensuring the tray can handle 1.5 times the actual load for safety .

Support and Mounting

To guide cables into a cabinet, the mesh tray must be properly supported:

• Direct Cabinet Mounting: Use an FASP support bolted directly to the cabinet for a low-profile entry .
• Elevated Entry: If the tray needs to be raised above the cabinet, use a UFS support bracket or an FASP elevated with threaded rods .
• Ensure the tray is level and securely fastened to prevent sagging or movement.

Cable Exit and Protection

• Cables can exit the mesh tray at any point due to its open design, but edge protection is essential to prevent abrasion at the cabinet entry .
• Use nylon ties or Velcro straps to secure cable bundles at intervals of 1–1.5 meters, reinforcing at bends and exit points .
• Maintain separation between high-voltage and low-voltage cables using dividers or code-specified spacing to prevent electromagnetic interference .

Grounding

• Bond each tray section together using grounding clips or jumpers, connecting the system to the facility's main grounding busbar .
• Proper grounding ensures compliance with electrical codes and enhances safety.

Final Tips

• Avoid pulling cables through conduits; the open mesh allows direct placement from the top or side, simplifying installation .
• Pre-sort accessories like brackets, clamps, and grounding jumpers to streamline installation.
• Always handle cut edges carefully, as mesh trays can have sharp edges . By following these steps, cables can be routed efficiently from a mesh cable tray into a cabinet while maintaining safety, organization, and compliance with standards.