Installation method of cable tray telescopic bracket

Cable tray telescopic supports are installed by selecting the correct support type, adjusting the telescopic length to the required span, securing to the structure, and ensuring proper load distribution and alignment.

Overview of Telescopic Supports

Telescopic supports are adjustable support elements used to hold cable trays at variable heights or spans, allowing flexibility in installation over ceilings, walls, or floors. They are typically made of steel or stainless steel and may feature galvanised surfaces for corrosion protection, conforming to standards such as DIN EN 61537.

Step-by-

Step Installation

Planning and Material VerificationReview approved shop drawings to determine tray layout, support locations, and required spans. Inspect all materials, including telescopic supports, trays, and fittings, for damage or discrepancies before installation.

Support Selection and Adjustment

Choose telescopic supports based on the cable tray type (ladder, ventilated trough, or mesh) and expected load. Adjust the telescopic length to match the required height or span between the mounting surface and the tray. Ensure the support can handle the total anticipated cable weight plus any future additions.

Mounting to Structure

Secure the telescopic support to the ceiling, wall, or floor using appropriate anchors or brackets. Avoid cutting or drilling structural members without approval. For ceiling installations, trapeze hangers can be used; for wall-mounted runs, cantilever brackets are suitable.

Tray Installation and Alignment

Place the cable tray onto the telescopic supports, ensuring proper alignment and level. Use fittings such as bends, T-pieces, or reducers to maintain continuous routing and accommodate changes in direction or width.

Load and Safety Checks

Verify that the tray and supports do not exceed deflection limits and that the load is evenly distributed. Ensure all bonding and grounding requirements are met according to NEC or local standards.

Final Inspection

Conduct a final inspection to confirm that all supports are secure, trays are level, and the system is ready for cable installation.

Best Practices

Always use components designed to work together as a system to ensure mechanical integrity and safety. Store trays and supports horizontally on flat surfaces with timber supports to prevent deformation before installation. Avoid overfilling trays to prevent overheating and mechanical stress on supports.

By following these steps, telescopic supports can provide a flexible, safe, and code-compliant solution for supporting cable trays in industrial and commercial installations.