How to handle cable tray supports

Cable tray supports are structural components used to securely hold and stabilize cable trays in commercial and industrial installations.

Overview

Cable tray supports are essential for maintaining the integrity and safety of cable management systems. They provide rigid structural support, prevent sagging, and ensure proper alignment of cable trays, which are used to organize and protect electrical and communication cables . Supports can be installed horizontally or vertically and are critical for both short and long cable runs.

Types of Cable Tray Supports

1. Hangers: Suspended from ceilings or overhead structures to support horizontal tray runs .
2. Brackets: Fixed to walls or vertical surfaces to hold trays in place .
3. Clamps: Used to attach trays to beams, C-channels, or other structural elements, often providing grounding or hold-down functionality .
4. Expansion Guides: Allow for thermal expansion and contraction of trays without compromising support .

Installation Guidelines

• Support Spacing: Horizontal straight sections should be supported at intervals not exceeding the tray's straight section length, typically 20 feet for standard SnapTrack trays .
• Fittings and Joints: Supports should be placed 2 feet on each side of expansion connections and near fittings, especially for radii less than 12 inches .
• Vertical Runs: Vertical trays should be supported at intervals dictated by the building structure, generally not exceeding 20 feet .
• Load Considerations: Heavy-duty clamps and supports can handle loads up to 400 lbs, depending on the type and installation method .

Accessories and Additional Components

Cable tray systems often include accessories such as couplers, tees, crosses, nuts, bolts, and swift clips to facilitate installation and cable management . These components help secure cables, manage directional changes, and maintain proper spacing within the tray.

Applications

Cable tray supports are widely used in industrial plants, commercial buildings, and infrastructure projects where large volumes of electrical or communication cables need organized routing. Proper support ensures safety, compliance with standards, and longevity of the cable system . By selecting the appropriate type of support and following installation guidelines, cable tray systems can maintain structural integrity, prevent cable damage, and reduce maintenance costs.