Long-span cable trays in Lithuania typically follow European CE standards, with specifications including perforated, solid-bottom, and ladder types, reinforced connections for widths over 300mm, and standardized bolt and nut fittings.

Types and Dimensions

• Perforated Long-Span Cable Tray (LSCT): Example LSCT100X200, where 100mm is the height and 200mm is the width. Suitable for general cable routing with ventilation and heat dissipation .
• Solid-Bottom Long-Span Cable Tray (LSCTU): Example LSCTU100X200, designed for applications requiring full bottom support to prevent cable sagging .
• Long-Span Cable Ladder (LSCL): Example LSCL100X200, used for heavy-duty or industrial installations where ladder support is preferred .

Connection and Accessories

• Straight Section Connections: Use M8x16 low-trail carriage bolts × 4 and M8 flange nuts × 4 for 100mm and 150mm high trays .
• 90° Horizontal Elbows: M8x16 bolts × 6 and M8 flange nuts × 6.
• Up and Down Elbows: M8x16 bolts × 8 and M8 flange nuts × 8.
• Bottom Reinforcement: Required for trays over 300mm wide, using M8x16 bolts × 8 and M8 flange nuts × 8 .
• End Closures and Width Transitions: Standardized bolt and nut sets ensure secure connections and compatibility between different tray widths .

Material and Compliance

• Typically manufactured from galvanized steel or aluminum, providing corrosion resistance and structural integrity .
• CE marking ensures compliance with European directives, including mechanical, electrical, and safety standards .
• Stainless steel or zinc coatings may be used for enhanced corrosion protection, with attention to galvanic compatibility when combining metals .

Installation Considerations

• Long-span trays reduce the number of supports required, ideal for industrial or commercial applications such as roadway crossings, pipe bridges, or large-scale electrical installations .
• Pre-assembled sections and large-radius elbows minimize on-site modifications and labor costs .
• Load calculations, cable fill, and deflection should be verified using manufacturer-provided modules or simulation tools to ensure compliance with structural and safety requirements .

Summary

Lithuanian long-span cable trays follow European CE standards and include perforated, solid-bottom, and ladder types. Reinforcement is required for trays wider than 300mm, and standardized bolts and nuts are used for all connections. Materials are typically galvanized steel or aluminum, with corrosion protection measures. Proper installation ensures structural integrity, compliance with safety standards, and efficient cable management for industrial and commercial projects .