90-degree angle of the side of the cable tray

A 90-degree side view of a cable tray shows the tray bending at a right angle, with side flanges and base forming a continuous path for cable routing.

Overview

A 90-degree cable tray, often called an elbow, allows cables to change direction while maintaining support and organization. In a side view, the tray's base and side flanges are visible, showing how the tray curves to form a right angle. The bend can be horizontal (plan view) or vertical (elevation view), depending on installation requirements.

Fabrication Method

Creating a 90-degree elbow typically involves: Marking the Center Line: Determine the bend location and draw a line across the tray base. Cutting 45-Degree Angles: Make two 45-degree cuts on the side flanges to form the elbow.

V-

Notching the Base: Remove V-shaped sections from the base to allow the sides to close together. Bending and Fastening: Fold the tray along the cuts and secure with bolts, nuts, and washers. Protection: Apply cold galvanizing spray or other rust protection if required.

This method ensures a smooth 90-degree turn while maintaining structural integrity and cable support.

CAD Models and Technical Drawings

For precise design and visualization, CAD files are available in formats such as SOLIDWORKS, AutoCAD, Inventor, CATIA, STEP, and DWG. These models provide side, top, and isometric views of 90-degree elbows, allowing engineers to integrate them into electrical layouts. Suppliers often provide pre-configured elbows in various sizes and materials, including hot-dip galvanized steel, aluminum, or coated steel.

Installation Considerations

Ensure the elbow matches the tray width and load class of the straight sections. Maintain proper ventilation and spacing for heat-producing cables. Use appropriate support brackets at the bend to prevent sagging or stress on cables.

Verify compliance with UL, NEMA, or CE standards depending on location. By combining a side view illustration, fabrication steps, and CAD resources, engineers and installers can accurately plan and implement 90-degree cable tray bends in electrical systems.