Distance between cable tray and hanger

The typical distance between cable tray hangers should not exceed 1.5 meters, though this can vary depending on tray type, load, and installation conditions.Standard Hanger SpacingFor most cable tray installations, hangers or support points are recommended at intervals of up to 1.5 meters along horizontal runs to ensure stability and prevent sagging of the tray and cables . Vertical runs may require supports at slightly longer intervals, preferably less than 2 meters, depending on the structural attachment and cable weight .Key ConsiderationsTray Type and Load: Heavier trays or those carrying a large number of cables may require shorter hanger spacing to reduce deflection and maintain structural integrity .Critical Points: Supports should always be installed at the beginning and end of the tray, at corners, T-junctions, and when the tray spans more than 30 meters .Material and Environment: Steel or stainless steel trays may allow longer spans than lighter materials, but environmental factors like vibration, temperature, or exposure to corrosive substances can influence spacing .Cable Weight Distribution: Properly spaced hangers help distribute the weight evenly, prevent stress on cables, and reduce the risk of mechanical strain or damage .Additional GuidelinesHorizontal Runs: Cables should be secured at the start, end, and turns, and every 3–5 meters along straight sections .Vertical Runs: Cables should be secured at the top and every 1.5 meters along the vertical tray .Binding: When binding cables within trays, ties should not exceed 1.5 meters apart to maintain even tension and organization .Practical TipAlways consult the manufacturer's specifications for the specific cable tray system being used, as maximum allowable spans can vary based on design, load rating, and installation method . Proper hanger spacing ensures safety, reduces sagging, and facilitates maintenance and future expansion.