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Fire-resistant cable trays are constructed with a steel casing, featuring double-layer fire-resistant lids, internally housing inorganic fire-resistant trays. The double lids facilitate ventilation and heat dissipation, effectively securing the inorganic fire-resistant trays.

Construction Achievements

The thermal insulation layer has an average thickness of 25mm, internally coated with fire-resistant paint. When the fire-resistant cable bridge encounters fire, the paint expands to block the heat dissipation holes, protecting the cables inside the槽盒. The non-metallic fire-resistant槽盒 has passed the national fixed fire resistance test center's 60-minute fire resistance test, with no damage to the cables. The supporting structure is robust.