Installation of Fireproof Cable Trays for Electromechanical Equipment in North Africa

Fireproof cable trays must be installed using fire-resistant materials, proper layout, and certified fire protection systems to ensure safety, reliability, and compliance with international standards.

Planning and Layout

Proper route planning is essential. Cable trays should follow the shortest and straightest paths, avoiding unnecessary crossings or detours, and should be coordinated with the building structure to prevent interference with other pipelines or equipment. Power and signal cables must be segregated using dedicated trays to minimize electromagnetic interference.

In North African environments, consider corrosion-resistant materials such as aluminum alloys or fiberglass-reinforced plastics for high humidity or coastal areas.

Material Selection and Fire Resistance

Choose fire-resistant cable trays that comply with international standards such as EN 1363-1. Materials should withstand high temperatures without collapsing and should not emit toxic fumes. Options include painted or galvanized steel for indoor use, stainless steel or hot-dip galvanized steel for outdoor use, and special coatings or fireproof blankets for extreme fire scenarios.

Fireproof coatings like FLAMMOTECT-A or fire protection tapes such as DG-CR 0. 7 can enhance resistance to flame propagation and environmental factors like UV, moisture, and chemicals.

Installation Requirements

Level and secure mounting: Horizontal deviation ≤2 mm/m, vertical deviation ≤3 mm/m. Fire-rated fastenings: Use certified fire-resistant brackets, bolts, and supports. Qualified personnel: Installation must be performed by trained electricians familiar with fire-resistant systems and local electrical codes.

Firestopping at penetrations: Seal all wall, slab, and shaft penetrations with fire-rated materials such as mineral wool, firestop packs, or mastic. Gaps should not exceed 1 cm², and backing plates may be required for large openings.

Fire Resistance Ratings

Select systems with E60 or E90 ratings, indicating that the electrical circuit remains functional for 60 or 90 minutes during a fire. For high-risk industrial or petrochemical environments, consider JetBlack® fire protection blankets, which can protect cable trays at temperatures up to 1,268°C for two hours, even under jet fire conditions.

Maintenance and Inspection

Regular inspection: Check for corrosion, mechanical damage, and integrity of fireproof coatings. Refitting and replacement: Fireproof systems should be removable and re-installable to allow maintenance without compromising fire protection. Documentation: Maintain records of fireproofing materials, installation procedures, and compliance with local regulations.

Conclusion

For North African installations, combining corrosion-resistant materials, certified fireproof systems, proper layout, and firestopping measures ensures that electromechanical equipment remains operational during fire events, protects personnel, and complies with international safety standards.