Plastic cable trays can be hoisted using hoisting frames or cross arms with suspension rods, ensuring proper support, spacing, and secure fastening for both small and large trays.

Hoisting Small-Sized Cable Trays

For smaller plastic cable trays, hoisting frames are commonly used. These frames are cost-effective, easy to install, and provide adequate support for lighter loads. The typical setup includes:

• Hoisting frame: Supports the tray horizontally.
• Suspension rod: Connects the ceiling or overhead structure to the hoisting frame.
• Five-piece fastening kit: Ensures secure attachment of the tray to the frame. The recommended spacing is one hoisting frame every 1.5 to 2 meters of tray length, with each frame accompanied by a suspension rod and fastening kit to maintain stability and prevent sagging .

Hoisting Large-Sized Cable Trays

For larger or heavier trays, cross arms provide a more robust solution. Key components include:

• Cross arm: Offers strong horizontal support and facilitates maintenance.
• Two suspension rods: Provide vertical support from the ceiling to the cross arm.
• Two sets of fastening kits: Secure the tray to the cross arm. The installation ratio is also one cross arm every 1.5 to 2 meters, ensuring sufficient structural integrity for heavier cable loads .

Suspension and Support Considerations

• Suspension rods (lead screws): Essential for connecting the ceiling support to the tray's hoisting crossbars. They can be cut to length and used with expansion components or nuts for secure attachment.
• Center-hung supports: Allow cables to be deposited from both sides, speeding up installation and reducing strain on the tray .
• Maximum load per hanger: Typically ranges from 318 kg to 340 kg, with a maximum support spacing of 3.6 meters for center-hung systems .

Safety and Best Practices

• Ensure all components are compatible and tested together as a system to prevent structural failure .
• Only qualified personnel familiar with electrical installation and safety standards should perform hoisting and installation .
• Avoid using cable trays as walkways or ladders, as this can cause personal injury and damage the system .
• Properly balance bundles of trays at the center when lifting to prevent tipping or uneven load distribution . By following these methods, plastic cable trays can be hoisted safely and efficiently, ensuring long-term stability and compliance with installation standards.