Spacing between cable tray supports at corners

At cable tray corners or bends, it is recommended to install one support on each side of the corner, arranged symmetrically, with spacing typically not exceeding 1.5 meters.Key Guidelines for Corner SupportsSymmetrical Support Placement: At bends or corners, install a support on each side of the corner to maintain stability and prevent stress on the cables inside the tray . This ensures the tray does not sag or shift under the weight of the cables. Maximum Distance Between Supports: The distance between hangers or supports at corners should generally not exceed 1.5 meters, although this may vary depending on the tray type, material, and load . For straight horizontal runs, supports are typically spaced 1.5 to 3 meters, while vertical runs may require supports every 2 meters or less . Load Considerations: Supports must be designed to carry the weight of the cables and any additional loads, such as wind, ice, or equipment mounted on the tray . Heavier cable loads or larger tray sizes may require closer support spacing. Fixed Supports at Key Points: In addition to corners, fixed supports should be installed at the beginning and end of tray runs, T-junctions, and any span exceeding 30 meters to distribute weight evenly and prevent sagging . Installation Tips:Ensure supports are securely fastened to the building structure.Use appropriate hangers or brackets that match the tray type.Maintain level alignment to avoid uneven stress on the tray and cables.For perforated trays, extra care is needed to prevent deformation at bends . By following these guidelines, cable tray systems will remain structurally sound, reduce mechanical stress on cables, and allow for safe maintenance and inspection. Proper support placement at corners is critical for long-term reliability and compliance with electrical installation standards .