Specifications and Models of Lutong Cable Trays

Lutong cable trays are designed to support and route electrical cables safely, with various models and specifications available to meet load, span, and installation requirements.

Overview of Cable Tray Types

Cable trays are generally categorized into several types based on their structure and application:

• Ladder Type: Features side rails with rungs, ideal for heavy-duty cables and long spans. Provides excellent ventilation and easy cable access.
• Solid Bottom: Offers full support for cables, suitable for sensitive or small cables that require protection from dust or debris.
• Perforated/ Ventilated: Combines solid support with ventilation holes to reduce heat buildup and allow cable tie attachment.
• Wire Mesh/ Basket: Lightweight and flexible, suitable for low-voltage or data cables, often used in office or IT environments.

Material and Finish

Cable trays are typically made from steel, aluminum, or stainless steel, with finishes such as galvanized, powder-coated, or anodized to resist corrosion and meet environmental requirements. The choice of material affects load capacity, span, and durability.

Load Capacity and Span

Cable trays are designed according to standards such as NEMA VE 1 and UL. Load capacity depends on tray width, rung spacing, and material:

• Standard 36" wide trays with 12" rung spacing can support up to 200 lb concentrated load per rung with a safety factor of 1.5.
• Aluminum trays (Series 2–5) have published load ratings and deflection multipliers to calculate mid-span deflection and ensure structural integrity.
• Continuous spans reduce deflection by up to 50%, allowing longer unsupported runs .

Models and Accessories

Cable tray systems include straight sections, fittings, and accessories:

• Straight Sections: Available in various lengths and widths to accommodate different cable volumes.
• Fittings: Elbows, tees, crosses, reducers, and offsets allow routing around obstacles.
• Covers and Accessories: Provide protection, grounding, and support for cable management.
• CAD/BIM resources are often available for design integration, allowing 2D/3D modeling and specification downloads .

Standards and Compliance

Lutong cable trays, like other industrial cable trays, typically comply with:

• NEMA VE 1 for load and deflection
• UL 568 for safety and fire resistance
• ANSI/NFPA 70 (NEC) for electrical code compliance
• ISO 1461 / ASTM A123 for material and coating standards

Summary

Lutong cable trays are available in multiple types, materials, and sizes, designed to meet structural and electrical requirements. Key considerations include tray type, material, load capacity, span, and compliance with standards. Accessories and CAD/BIM resources facilitate installation and integration into electrical systems, ensuring safe and efficient cable management.