Fixing of cable trays in steel structure factory buildings

Cable tray supports in steel structure factory buildings can be securely fixed using welding, bolting, or modern stud fastening systems, with proper spacing, load management, and corrosion protection to ensure safety and durability. Methods of Fixing Supports1. Welding: Welding provides a robust and permanent connection between the cable tray support and the steel structure.

It is highly reliable but requires skilled labor, proper safety measures, and may be time-consuming for large installations. 2. Bolting: Bolting involves drilling holes in the steel structure and securing supports with bolts.

This method is flexible and allows for easier adjustments or removal but requires access to both sides of the steel and careful torque application to prevent loosening. 3. Stud Fastening Systems: Modern solutions, such as Hilti's X-ST GR, X-BT, S-BT HL, and F-BT, use threaded studs with powder-actuated or blunt-tip self-welding technology.

These systems offer fast installation, corrosion protection, and high load capacity without the need for traditional welding or through-bolting.

Types of Cable Tray Supports

Hanger Supports: Suspended from ceilings, ideal for limited floor space and adjustable for height.

Wall-

Mounted Supports: Attached to walls, commonly used in industrial environments and data centers.

Floor-

Mounted Brackets: Suitable for large industrial areas or corridors where ceiling or wall mounting is not feasible. Unistrut Systems: Modular and strong, can be installed from ceiling, wall, or floor, providing flexibility for future modifications. Vertical Supports: Used for multi-story buildings to maintain organized vertical cable runs.

Design Considerations

Load Management: Select supports rated for the expected cable weight and dynamic loads. Overloading can cause deformation or failure. Spacing: Proper spacing prevents sagging and ensures structural integrity.

Follow manufacturer guidelines and standards. Thermal Expansion: Include expansion joints or flexible couplings to accommodate temperature-induced material changes. Vibration Isolation: Use vibration-isolating supports in areas with heavy machinery to prevent loosening.

Corrosion Protection: Use galvanized or stainless steel supports, and consider protective coatings for harsh environments. Grounding: Ensure continuous grounding along metal trays to prevent electrical hazards. Cable Management: Avoid overcrowding, sharp bends, and abrasion by using edge protectors and following cable fill limits.

Best Practices

Plan the support layout before installation to optimize accessibility and maintenance. Use modular and adjustable systems for flexibility in future upgrades. Regularly inspect and tighten connections to maintain safety and performance.

Follow industry standards such as DIN EN 61537 for cable support systems. Implementing these methods and considerations ensures that cable tray supports in steel structure factory buildings are safe, durable, and compliant with industrial standards, while facilitating efficient cable management and maintenance.