EzyCalculator is an interactive online tool designed to help you calculate safe loads to spans for steel, aluminium and FRP strut and cable support components. The mechanical and electrical characteristics, tests, certifications, overall quality management, recommendations mentioned in this technical guide only apply to our own cable management ranges and cannot under any circumstances be transposed to si osure, overheating or. Based on "Code for Acceptance of Construction Quality of Building Electrical Engineering" GB50303 and "Specification for Design of Steel Cable Tray Engineering" CECS31 Actual width of the cable tray. Common values: 200, 400, 600, 800mm Actual height of the cable tray. The Cable Tray ng standards, performance standards, test standards and application in this document have been tested extens ompetent professional en completely installed, without damage either to conductors or. Our free calculator helps you determine the correct tray size based on NEC and IEC standards. Follow these simple steps: Define Tray Dimensions: Enter the width and depth of your planned cable tray (in mm or inches). Use CSV or PDF buttons to save the result. Cable tray support span controls strength, deflection, and service life.