Guinea Flame-Retardant Cable Tray Specifications

Guinea flame-retardant cable trays are typically made from FRP composites with high flame resistance, UV protection, and corrosion resistance, meeting ASTM and NEMA standards.

Material and Construction

Flame-retardant cable trays in Guinea are generally constructed from Fiber Reinforced Plastic (FRP) using unsaturated polyester resin systems or vinyl ester resins. These trays are lightweight, high-strength, corrosion-resistant, and flame-retardant, making them suitable for industrial and outdoor environments . UV light inhibitors are added to prevent degradation from sunlight exposure . The trays are available in ladder type and perforated type, with accessories such as coupler plates, elbows, tees, and reducers for flexible installation .

Fire Resistance and Standards

FRP cable trays are designed to resist flame spread and high temperatures. They comply with standards such as ASTM D635, ASTM D2863, and NEMA FGI-1993, which test for burning rate, oxygen index (minimum 30%), and self-extinguishing properties . Surfaces may be coated with fire-retardant paint, and fire barriers can be installed within trays to isolate different fire zones .

Mechanical and Electrical Properties

• High mechanical strength to prevent deformation under full cable load .
• Dielectric strength and insulation suitable for electrical safety, tested according to ASTM standards .
• Corrosion and chemical resistance, suitable for humid or chemically aggressive environments .
• Lightweight and easy to drill or cut, facilitating installation and maintenance .

Installation Guidelines

• Indoor trays: Painted steel or galvanized trays; Outdoor trays: Hot-dip galvanized or stainless steel; Corrosive/high humidity: Aluminum alloy or FRP .
• Cable arrangement: Cables should be laid parallel, avoiding twists and crossovers, and secured with ties or clips at regular intervals .
• Directional changes: Horizontal/vertical elbows, T-junctions, and cross-junctions ensure structural stability .
• Fireproofing: Use fireproof trays for flame containment, seal openings with fire-rated materials, and avoid modifying the tray coating .

Accessories and Fasteners

Each tray section comes with fasteners, coupler plates, washers, nuts, and bolts as per design drawings. Tray covers, where provided, are bolted securely to prevent movement and maintain fire resistance .

Summary

Guinea flame-retardant cable trays are FRP-based, UV-stabilized, corrosion-resistant, and compliant with ASTM/NEMA fire safety standards. They are suitable for industrial, commercial, and outdoor installations, providing both mechanical support and fire protection for electrical cables while allowing flexible layout and easy maintenance .