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How is the Portuguese U-shaped cable tray

ODN and passive infrastructure knowledge brief Published 17 May 2026

Prepared for preliminary research by the GESTIONVAL ODN knowledge desk. Confirm network topology, split ratio, box or cabinet capacity, joint closure rating and loss budget against current standards and product documentation.

The Portuguese U-shaped cable tray, such as the EL 1302, is a compact, perforated channel tray designed for light cable loads in confined spaces, offering flexibility, ventilation, and corrosion-resistant options.Design and Structure

The U-shaped cable tray, also known as a channel tray, features a simple U or channel-like profile that supports electrical cables along its base and sides. The Portuguese EL 1302 model is perforated, with oblong holes measuring 25x7 mm, which allow for ventilation, heat dissipation, and easy cable fastening . It is produced in 3-meter and 6-meter lengths, making it suitable for short cable runs and modular installations .

Materials and Finishes

The EL 1302 tray is available in multiple finishes to suit different environments:

  • PZ – Pre-zincated steel (NBR 7008) for general corrosion resistance
  • IN – Stainless steel (AISI 304 and 316) for high-temperature or corrosive environments
  • GF – Fire-galvanized steel (NBR 6323) for enhanced durability
  • PT – Painted for aesthetic or protective purposes These material options ensure the tray can be used in industrial, commercial, or outdoor settings while maintaining structural integrity and resistance to corrosion.
Applications

U-shaped cable trays are ideal for:

  • Light cable loads in commercial or residential projects
  • Tight or confined spaces where larger trays cannot fit
  • Short cable runs from main trays to equipment or control panels
  • Supporting power, control, and communication cables efficiently The perforated design also allows for easy cable management, including securing cables with ties and providing access for maintenance or future upgrades.
Advantages
  • Compact and cost-effective: Requires less space and material than larger ladder or trough trays
  • Ventilation: Perforations prevent overheating of cables
  • Flexibility: Can be cut or modified to fit specific installation requirements
  • Corrosion resistance: Multiple material options allow use in harsh environments
  • Ease of installation: Lightweight and simple to mount on walls, ceilings, or underfloor supports
Comparison with Other Trays

Compared to ladder or basket trays, U-shaped trays are less suited for heavy cable loads but excel in space-limited areas and short-distance cable routing. They provide a balance between support and accessibility, making them a practical choice for small-scale or localized installations . In summary, the Portuguese U-shaped cable tray like the EL 1302 is a versatile, perforated channel system that combines compact design, ventilation, and corrosion resistance, making it ideal for light cable management in confined or modular installations.

How is the Portuguese U-shaped cable tray - GESTIONVAL ODN INFRASTRUCTURE S.L. [PDF]

How is the Portuguese U-shaped cable tray

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Technical note

This reference is intended for preliminary ODN and passive infrastructure research. Topology, split ratio, box or cabinet capacity, closure rating, cable type, test limits and applicable standards must be verified for the specific project.

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