Bent Right Angle Cable Tray

A 90-degree cable tray bend, or elbow, is typically formed using two 45-degree cuts or a pre-fabricated elbow fitting to ensure smooth cable routing and maintain proper bend radius.Methods for Forming a Right-Angle Bend1. Fabricated or Mitered Bend: A common approach is to create a 90-degree elbow by making two 45-degree cuts on a straight section of tray, then bending and fastening the pieces together. This method allows the tray to turn sharply while maintaining structural integrity and proper cable support . 2. Pre-Fabricated Elbow Fittings: For standard offsets, manufacturers provide pre-fabricated 90-degree elbows that can be bolted directly to the tray. These fittings save time, ensure consistent angles, and reduce the risk of violating cable bend radius requirements . 3. Field-Bending for Custom Angles: When the installation space is non-standard, field-bending may be necessary. Tools like angle calculators or specialized bending equipment help determine the correct cut marks and sloped section lengths to achieve a precise 90-degree turn without overstressing the cables .Considerations for Right-Angle BendsBend Radius: The radius of the bend affects cable pulling. A larger radius creates a smoother curve, reducing stress on cables, while a smaller radius may be necessary in tight spaces but can make pulling stiff cables difficult .Support Spacing: Ensure supports are placed appropriately near the bend to handle the additional weight and prevent sagging .Offset Calculations: If the bend is part of an offset to avoid obstacles, calculate the horizontal and vertical distances to maintain alignment with the rest of the tray system .Safety and Tools: Use proper cutting tools, such as a round saw for non-ferrous materials, and wear protective equipment like earplugs and a face shield during fabrication . By following these methods and considerations, a cable tray can be bent at a right angle safely and efficiently, ensuring smooth cable routing and compliance with installation standards.