Horizontal cable trays around the wall

Horizontal cable trays can be securely mounted to walls using brackets, supports, or cantilever systems while maintaining proper spacing and cable management for safety and performance.

Wall-

Mounted Installation Methods

Horizontal cable trays are typically attached to walls using wall brackets, cantilever supports, or specialized mounting rails. Supports such as RVK wall brackets or TKS/KTA cantilever brackets allow the tray to be lifted and secured, providing a clean and stable installation while accommodating aesthetic requirements. The tray edges are positioned onto the bracket tips and pressed into place to ensure a secure fit.

For heavier or wider trays, additional threaded rod suspensions or wall adapters may be used to distribute weight and maintain structural integrity.

Material and Tray Types

Cable trays are generally made of steel or stainless steel, often with galvanization to improve corrosion resistance. Horizontal trays can be solid-bottom, ladder, or mesh types, depending on the application and cable type. The choice of tray material and finish should consider environmental factors such as moisture, dust, or chemical exposure.

Spacing and Support Guidelines

Proper spacing is critical for safety, airflow, and cable performance. Horizontal trays should be supported at intervals of 3 to 5 meters along straight runs, with additional support at bends, starts, and ends. When installing multiple trays in parallel, maintain a minimum horizontal distance of 0.

6 meters for maintenance access, and 0. 5 meters between power and signal trays to reduce electromagnetic interference (EMI), unless shielding allows closer spacing. The tray should ideally be installed at least 2.

2 meters above the ground, with a minimum clearance of 0. 3 meters from the ceiling or other obstructions.

Cable Management and Safety

Cables within the tray should be laid straight and orderly, avoiding overlaps or protrusions. Binding should be applied every 1. 5 meters to maintain even tension.

The tray fill rate should not exceed 50% to allow proper airflow and prevent overheating. For wall-mounted trays, fabricated wall sleeves or flanges can provide additional rigidity and a neat appearance, especially where cables pass through walls.

Practical Tips

Use pre-fabricated flanges or channels for easier alignment and secure attachment. Ensure all materials meet approved submittals and standards such as DIN EN 61537 for cable support systems. Inspect all supports and fasteners for load capacity and corrosion resistance before installation.

Consider custom bends using flexible trays like the Wall Snake to match wall contours without compromising cable bending radii. By following these guidelines, horizontal cable trays can be safely and efficiently mounted to walls, ensuring long-term reliability, proper cable management, and compliance with safety standards.