Cable tray installation in a Belgian factory

Proper Belgian cable tray installation requires selecting certified trays, following manufacturer guidelines, ensuring secure support, and complying with national and European standards.

Selecting Cable Trays

In Belgium, cable trays are typically produced by local manufacturers such as Trayco, offering ladder trays, mesh trays, and channel systems tailored for electrical and communication installations. Selection depends on the type of cables, load capacity, environmental conditions, and whether ventilation or solid-bottom trays are required. Materials commonly used include galvanized steel, stainless steel, aluminum, and wire mesh, chosen for corrosion resistance, mechanical strength, and suitability for indoor or outdoor environments.

Planning and Layout

Before installation, coordinate with other building services and mark tray paths according to approved shop drawings. The layout should consider cable entry and exit points, bends, tees, and intersections. Each run should be completed before cable installation, ensuring alignment, leveling, and proper spacing for maintenance access.

Designers or engineers familiar with local building codes should determine tray routing and support structures.

Mounting and Support

Cable trays are supported using threaded rods, slotted channels, or trapeze hangers. For example, 10mm GI rods are used for trays below 300mm, and 12mm rods for trays above 300mm. Slotted channels (e.g., 41x41x2mm) are fixed to the rods with nuts and washers, and trays are mounted on these channels.

Supports must prevent stress on cables and maintain tray level and alignment. Earth continuity is ensured with link straps between tray sections where required.

Installation Best Practices

Install trays as complete systems, including bends and accessories. Maintain adequate spacing for cable installation and maintenance. Use fire-stopping measures when trays pass through fire-rated walls.

Avoid using trays as walkways or for supporting personnel, as they are designed only for cable support. Ensure all materials are approved and compliant with standards such as BS EN 61537 for cable trays and BS 6946 for channel supports.

Safety and Compliance

Installation should be performed by qualified personnel familiar with electrical hazards and local regulations. Proper installation prevents personal injury, property damage, and ensures long-term reliability of the cable management system. Regular inspection and maintenance are recommended to maintain structural integrity and electrical continuity.

By following these guidelines, Belgian cable tray installations can achieve safe, durable, and code-compliant cable management suitable for industrial, commercial, and residential projects.