Documentation – Arm Developer

How to place the cable tray support arm

Cable tray supports should be strategically positioned so that connectors between horizontal straight sections of the tray fall between the support point and the quarter-point of the span. This guide covers the critical steps, from selecting the right electrical cable tray and performing accurate cable fill calculations to managing a safe cable pull through and ensuring all bonding and grounding requirements are met. For licensed electricians, mastering these principles is essential. The following recommendations are intended to be a practical guide to ensure the safe and proper installation of cable ladder and cable tray systems and channel support and other support systems. Using cable trays as walkways can cause personal injury and can damage cable tray and installed cables. Adherence to these guidelines is essential: 1.