Installation of Swiss-style cable trays

Proper Swiss cable tray installation ensures safe, organized, and code-compliant routing of electrical cables using structured support, grounding, and precise layout planning.

Planning and Tray Selection

Before installation, plan the cable tray route according to site layout, clearance, and load requirements. Choose the appropriate tray type—ladder, perforated, or solid-bottom trays—based on cable type, airflow needs, and environmental conditions. Ladder trays are ideal for power cables and allow ventilation, while perforated trays support lighter loads and smaller control cables.

Ensure tray sizing matches cable count and spacing to prevent overheating or wasted space.

Support and Mounting

Cable trays must be mechanically supported to maintain structural integrity. Common support methods include trapeze hangers for ceiling suspensions and cantilever wall brackets for vertical runs. Support spacing typically ranges from 1.

5 to 3 meters, depending on tray type and load. Swiss and Swifts systems offer universal brackets and quick-fit fasteners to simplify installation and provide flexibility for on-site adjustments.

Installation Steps

Align and Secure Trays: Use connectors, fittings, and adjustable bends to maintain straight, level runs. For long runs, cable tray rollers help prevent kinks during cable pulling. Lay Cables Neatly: Organize cables by voltage and function using cable ties or straps.

Leave slack for expansion or future modifications. Grounding and Bonding: Ensure electrical continuity across all metal trays. Use bonding jumpers and follow NEC Article 392 or local Swiss electrical standards for safety.

Labeling and Documentation: Clearly label cables and maintain updated wiring maps for troubleshooting and audits. Inspection and Maintenance: Check for loose clamps, misalignment, overfilled sections, or corrosion. Routine maintenance extends tray lifespan and ensures system reliability.

Material Handling and Safety

Store and handle components carefully to prevent damage to coatings or structural integrity. Follow approved drawings and specifications, and ensure all personnel adhere to safety protocols during installation.

Specialized Swiss/

Swifts Features

Swifts cable trays provide slot patterns for flexible positioning of nuts, bolts, and cable ties, along with adjustable bends, risers, and universal brackets for complex layouts. Quick-fit systems reduce installation time while maintaining strength and compliance.

Compliance and Standards

Ensure all trays conform to NEMA VE 1 standards or equivalent Swiss regulations. Avoid overfilling trays to prevent overheating and maintain proper conductor management. Adhering to these standards ensures a safe, reliable, and maintainable cable tray system.

By following these steps, Swiss cable tray installations can achieve efficient cable management, safety, and long-term reliability in commercial, industrial, or data-center environments.