Fire-resistant channel-type cable tray is made by applying a fireproof coating to a galvanized channel-type cable tray. Other constructions include double-layer sandwich design or internal fireproof board lining. It prevents fire spread and protects cables, widely used in fireproof sealing projects for power, telecommunications, subway, and chemical industries.
Fire protection is achieved through specialized coatings or materials that expand when exposed to fire, blocking ventilation holes and forming a heat-insulating layer. This effectively slows temperature rise inside the tray, allowing cables to maintain normal operation for a specified duration.
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Excellent protection: Fully sealed structure protects cables from dust, moisture, corrosive gases, and external impacts
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Customizable appearance: Multiple surface treatments available with customizable colors to match various architectural environments
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Steel shell: Typically made from cold-rolled steel with high strength and rigidity
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Fireproof coating: Formulated from polymer resins with flame retardants and foaming agents that create an insulating char layer when heated
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Double-layer fireproof cover: Some models feature ventilation while effectively blocking flames and heat
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Inorganic fireproof trough: Special internal lining providing exceptional fire resistance, tested to protect cables for specified durations
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