Installation of cable trays in cold storage

Cable trays in cold storage should be installed using corrosion-resistant materials, proper support systems, and careful routing to accommodate low temperatures and high humidity.

Material Selection

In cold storage environments, humidity and condensation are major concerns. Use stainless steel (AISI 316L) or hot-dip galvanized steel for cable trays to prevent corrosion and ensure long-term durability . Aluminum trays can also be used due to their corrosion resistance, but stainless steel is preferred for extreme cold and high-humidity conditions . Avoid materials that may become brittle at low temperatures.

Tray Design and Routing

• Ventilated or solid-bottom trays can be used depending on cable type and condensation risk. Solid covers help protect sensitive instrumentation cables from moisture .
• Maintain horizontal and vertical runs only, avoiding unnecessary bends to reduce stress on cables during installation and operation .
• Ensure adequate clearance for cable pulling and future maintenance, and coordinate tray routes to avoid clashes with other services .
• Use spacers or supports to keep cables organized and prevent sagging, especially on long runs .

Support and Installation

• Install trays on rigid supports such as threaded rods, brackets, or wall-mounted hangers, spaced according to tray type and load. Typical spacing is 1–1.5 meters for horizontal runs .
• Inspect all materials on-site for damage or discrepancies before installation. Remove unsuitable materials immediately .
• Store trays horizontally on flat surfaces with timber supports to prevent deformation before installation .

Safety and Standards

• Follow BS EN 61537 or equivalent standards for cable tray systems to ensure mechanical and electrical safety .
• Cable trays are supports for cables only, not walkways or ladders, to prevent personal injury and system damage .
• Ensure compliance with local electrical codes and CE/NEMA standards for cold storage installations .

Maintenance Considerations

• Regularly inspect trays for corrosion, condensation, and cable integrity.
• Ensure that covers and supports remain secure, and that cable bundles are not compressed or damaged by ice formation.
• Plan for easy access to cables for replacement or upgrades without dismantling large sections of the tray system. By following these guidelines, cable trays in cold storage can maintain structural integrity, corrosion resistance, and safe cable management under low-temperature and high-humidity conditions .