Fireproof cable trays are designed to protect electrical cables from fire, with ratings up to 60 minutes, using materials like steel or fire-resistant boards, and prices vary by size, load capacity, and manufacturer.

Specifications

1. Material and Construction

• Fireproof cable trays are typically made from pre-galvanized or hot-dip galvanized steel, or incorporate fire-resistant boards as a core protective layer .
• Fire-resistant boards are non-combustible, high-temperature resistant, and 5–12 mm thick, providing insulation and flame protection .
• Perforated designs allow for ventilation and easy cable fastening, while arc-shaped trays accommodate curved installations and reduce cable stress .

2. Fire Resistance Ratings

• Common fire ratings include 30, 60, and 90 minutes, tested according to standards like DIN 4102-12 .
• N1 rating indicates 60 minutes of fire resistance, suitable for industrial and commercial applications .

3. Dimensions and Load Capacity

• Standard tray lengths: 3 meters
• Widths: 100 mm, 200 mm, 300 mm, 400 mm
• Load ratings: 10 kg/m on a 1.65-meter span, with support systems compatible with 10 mm threaded rods .
• Arc-shaped trays improve installation efficiency by over 30% compared to traditional trays .

4. Applications

• Suitable for low and high voltage cables in construction, power, oil, gas, petrochemical, rail, and utilities .
• Ideal for hospitals, data centers, airports, high-rise buildings, and offshore installations .

Pricing

• Prices vary depending on material, size, fire rating, and manufacturer.
• Pre-galvanized steel trays (60x100x3000 mm) typically start around $50–$70 per tray, while fire-resistant board trays with N1 rating can range from $120–$250 per tray depending on thickness and customization .
• Arc-shaped or custom-colored trays may incur additional costs due to prefabrication and aesthetic features .

Installation and Accessories

• Recommended accessories include cable cleats to maintain cable integrity during fire events .
• Trays can be installed along ceilings or walls, with reduced need for on-site cutting or welding, improving safety and efficiency .

Fireproof cable trays are a critical component for fire safety in electrical installations, and selecting the right tray involves balancing fire rating, load capacity, dimensions, and cost according to project requirements.