Palau Cable Tray Trough Type

Palau Trough-Type Cable Trays are designed for safe, code-compliant cable management, typically constructed from steel or aluminum, with standardized dimensions, finishes, and accessories to meet NEC, NEMA, and ASTM requirements.

Material and Finish

Trough-type cable trays are commonly manufactured from steel or aluminum, with options for pre-galvanized, hot-dip galvanized, or stainless steel (AISI 316L) to ensure corrosion resistance in various environments . Aluminum trays benefit from a natural oxide layer for additional protection, while steel trays may be coated according to ASTM A123, A653, or B633 standards . The choice of material and finish depends on environmental conditions, including exposure to moisture, chemicals, or outdoor elements .

Dimensions and Load Capacity

Trough-type trays are available in standard widths, depths, and lengths, with inside depths and rung spacing designed to optimize cable fill, heat dissipation, and structural integrity . Typical rung spacing ranges from 150 to 230 mm (6–9 inches), and tray widths are selected based on the total cable area and allowed fill percentage, usually not exceeding 40% of the usable area . Load capacity is determined by material thickness, support spacing, and tray width, and must comply with manufacturer load tables to prevent deflection or stress failures .

Standards and Compliance

Palau Trough-Type Cable Trays conform to key standards, including:

• ANSI/NFPA 70 – National Electrical Code for electrical safety .
• NEMA VE 1 & VE 2 – Metallic cable tray systems and installation guidelines .
• ASTM A123, A653, A1008, B633 – Material and coating specifications for steel and zinc coatings .
• UL Certification – Ensures compliance with safety and performance requirements .

Accessories and Installation

Trough-type trays include straight sections, bends, tees, elbows, drop-outs, supports, clamps, brackets, splice plates, and expansion joints . Installation requires field verification of dimensions and routing, with submittal drawings showing accurately scaled components and manufacturer data for all fittings . Solid covers can be added for additional protection, particularly in areas with minimal heat generation or where visual aesthetics are important .

Applications

These trays are suitable for industrial plants, commercial buildings, data centers, and renewable energy projects, providing organized cable management while minimizing the risk of overheating, electromagnetic interference, or mechanical damage . Trough-type trays are particularly effective for instrumentation and control cables, offering a closed design that protects sensitive wiring . In summary, Palau Trough-Type Cable Trays are engineered for durability, compliance, and flexibility, with standardized materials, dimensions, and accessories to ensure safe and efficient cable management in diverse environments .