CRRC Rail Vehicle Fire and Noise Protection: AG-F Aerogel Felt in Wiring Ducts and End Walls

CRRC Changchun integrates AG-F Aerogel Felt into its intelligent high-speed and urban rail vehicles across two structurally distinct applications, addressing both fire protection and acoustic insulation requirements with a unified aerogel material solution. In wiring ducts, 5mm AG-F Aerogel Felt blocks flame spread along cable runs during electrical faults, isolating heat from adjacent structures and protecting circuit integrity throughout the vehicle. This containment prevents fire from propagating through the electrical infrastructure into passenger compartments, a critical factor in rail transit emergency safety. On end walls, 15mm AG-F Aerogel Felt serves as a composite fire-sound insulation layer, simultaneously meeting fire resistance standards and reducing noise transmission into the upper car body structure. This dual-function application eliminates separate material layers, reducing installation weight and complexity while achieving compliance with both fire safety regulations and passenger acoustic comfort requirements for high-speed rail operation. This solution reflects CRRC's commitment to advanced material integration in next-generation intelligent rail transit equipment.