Fire-Resistant Bus Ducts: Safeguarding Lifelines

In the fire safety system of modern buildings, ensuring the continuous power supply during a fire is crucial for the safe evacuation of personnel and the smooth conduct of fire rescue operations. Based on a profound understanding of fire safety requirements, our company has meticulously developed fire-resistant bus ducts that strictly comply with the GB/T 9978.1 standard for fire resistance tests of building components. These products are dedicated to providing a reliable "lifeline" for critical locations such as fire elevators, emergency lighting systems, and data centers.

The product adopts an innovative multi-layer composite fire protection structure design: the innermost layer is a high-temperature-resistant mica tape insulation system, the middle layer is filled with high-density ceramic fiber blanket, and the outer layer features a composite structure of intumescent fire-retardant coating and metal shell. This multiple protection ensures that the product can maintain circuit integrity for up to 180 minutes in high-temperature environments above 950℃, far exceeding the 90-minute requirement specified by national standards. In addition to its excellent fire resistance, this series of products maintains the same level of current-carrying capacity, mechanical strength, and ease of installation as conventional bus ducts.

In practical applications, the product also takes into account the needs of various complex scenarios. For example, for vertical installation, a special support structure has been specially designed to prevent functional impairment due to structural deformation during a fire; for humid environments, high protection level options such as IP66 are available. Thanks to its excellent adaptability to various complex conditions, the application scenarios of this type of bus duct are becoming increasingly extensive.