Making a cable tray fixing bracket
Cable tray brackets are fabricated from steel or stainless steel and installed using a combination of support elements, mounting plates, and fasteners to securely hold cable trays on walls, ceilings, or floors.
Materials and Design
Cable tray brackets are typically made from steel or stainless steel, often with galvanization or other corrosion-resistant coatings to withstand environmental conditions . The design must accommodate the weight of the cable tray and cables, and allow for horizontal or vertical adjustments. Brackets can be wall-mounted, floor-mounted, or suspended from ceilings depending on the installation requirements .
Fabrication Steps
- Cutting and Shaping: Steel sheets or bars are cut to the required dimensions. Brackets are bent or welded to form the support shape, ensuring proper angles for tray alignment.
- Drilling Holes: Pre-drilled holes are made for mounting bolts or screws to attach the bracket to the structure and to the cable tray .
- Surface Treatment: Apply galvanization, powder coating, or other corrosion protection as needed for durability .
- Assembly: Attach any additional mounting plates or reinforcement elements to the bracket to support heavier loads or junction boxes .
Installation Procedure
- Site Preparation: Verify the installation location, ensuring structural support can handle the load. Mark positions for brackets according to the approved shop drawings .
- Mounting Brackets: Secure brackets to walls, ceilings, or floors using appropriate anchors, bolts, or screws. Ensure brackets are level and aligned with the cable tray route .
- Attaching Cable Trays: Place the cable tray onto the brackets and fasten using screws, clamps, or end brackets. For long runs, use intermediate supports to prevent sagging .
- Inspection and Adjustment: Check alignment, stability, and load distribution. Make adjustments as necessary and document installation for quality control .
Safety and Standards
- Follow DIN EN 61537 or BS EN 61537 standards for cable support systems .
- Ensure all personnel use proper personal protective equipment (PPE) and follow manufacturer safety guidelines during fabrication and installation .
- Avoid using cable trays as walkways or for supporting personnel, as this can cause injury or damage . By following these steps, cable tray brackets can be fabricated and installed efficiently, providing a secure and durable support system for electrical and communication cables.
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