Cable tray single-sided connection

Single-sided cable tray systems use a central support rail with simplified connections, allowing cables to be laid on both sides and joined with single-bolt or clip connectors.

Overview of Single-Sided Cable Tray Systems

Single-sided or single rail cable trays are designed for lighter-duty cable support projects where traditional dual side rails are not required. These systems typically feature a center tubular rail that supports the tray, reducing the number of support points needed and simplifying installation . Cables can be laid on either side of the central rail, which eliminates the need to pull cables through multiple supports.

Connection Methods

• Single Bolt Connections: Sections of the tray are joined using a single bolt splice connector, which allows for quick and secure assembly .
• EZ-Clip or Two-Bolt Splice Connectors: Some systems, like the Husky Centray®, offer EZ-Clip connectors or two-bolt splice options for faster installation and alignment of tray sections .
• Pre-Attached Rungs: Rungs are often pre-attached transversely through the top or bottom of the central rail, providing structural support and reducing assembly time .

Support and Installation

• Center Hanger Rods: A single hanger rod is used at each support point, which reduces the number of supports and simplifies the layout .
• Flexibility: Single-sided trays allow for easier cable placement and removal, as cables can be installed on both sides of the central rail without obstruction.
• Fittings: Standard fittings such as bends, T-pieces, and crossovers can be used to change direction or height, similar to conventional cable trays .

Advantages

• Cost-Effective: Fewer supports and simplified connections reduce material and labor costs.
• Ease of Installation: Pre-attached rungs and single-bolt connections speed up assembly.
• Versatility: Suitable for light to medium cable loads and applications where aesthetics or minimal obstruction is important.

Considerations

• Load Capacity: Single-sided trays are generally intended for lighter loads; heavier cable bundles may require dual rail or ladder-type trays.
• Standards Compliance: Installation should follow relevant standards such as BS EN 61537 for cable tray systems to ensure safety and mechanical integrity .
• Environmental Factors: Material selection (steel, stainless steel, aluminum) should consider corrosion resistance and environmental conditions . Single-sided cable tray systems provide a practical, efficient solution for supporting cables in industrial and commercial installations, offering simplified connections, reduced support requirements, and faster installation while maintaining compliance with safety and mechanical standards.