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How to open the funnel-shaped tee of a cable tray

Fiber and communications infrastructure knowledge brief Published 20 Oct 2022

Prepared for preliminary research by the ENSAA knowledge desk. Confirm optical interfaces, port or core capacity, electrical input and output, enclosure protection, thermal design and installation limits against current standards and product documentation.

To open a funnel-shaped tee in a cable tray, you typically cut or bend the side walls and use a tee bracket to create access for cable routing.

Step-by-

Step Guidance1. Identify the Tee Location and Orientation Turn the tray so the open side faces you. This ensures you can access the side walls and bottom wires safely for cutting or bending (Flextray method).

2. Prepare Tools and Safety Gear Use an angular bolt cutter or offset blade cutter for wire mesh trays, or appropriate metal shears for solid trays. Always wear gloves and eye protection to prevent injury from sharp edges.

3.

Cut or Bend the Side Walls For Ezy

Tray systems, make the necessary cuts in the side wall where the tee will branch. Bend down the side wall to create an opening for the horizontal branch. For wire mesh trays, cut the cross wires at the bottom and sides to open the tee without damaging the tray structure.

4. Install the Tee Bracket Attach a TX or add-on tee bracket on either side of the opening. This secures the new branch and maintains structural integrity.

Ensure brackets are fastened with the recommended splice nuts and bolts, keeping smooth heads inside to avoid cable damage. 5. Secure the Tray Once the tee is opened and the bracket installed, secure the tray to the supporting strut using hold-down units in pairs.

This prevents movement and ensures safe cable installation. 6. Optional Covers If your system uses covers, place the appropriate lid over the tee to protect cables and maintain a neat installation.

Tips

Always work in pairs when installing riser links or brackets. Measure and mark cuts carefully to avoid misalignment. For large projects, consider using specialized tools like the Airshear for faster cutting.

Consult manufacturer guides or videos for system-specific techniques, such as the EzyTray or Flextray installation videos. By following these steps, you can safely open a funnel-shaped tee in a cable tray, allowing for proper cable routing and maintaining the tray's structural integrity.

How to open the funnel-shaped tee of a cable tray - ENSAA OPTICAL NETWORKS [PDF]

How to open the funnel-shaped tee of a cable tray

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Technical note

This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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