防火桥架与普通桥架在结构、材料、性能和应用场景等方面存在显著差异，以下是主要区别的综合分析：

　　There are significant differences between fire-resistant cable trays and ordinary cable trays in terms of structure, materials, performance, and application scenarios. The following is a comprehensive analysis of the main differences:

　　1. 材料与构造

　　1. Materials and Construction

　　防火桥架：通常以金属（如镀锌板）为基材，表面喷涂防火涂料或添加防火隔层（如硅质防火板），涂层厚度一般大于500μm，具有磨砂感。部分型号还采用玻璃钢等阻燃复合材料。其设计注重密闭性，以槽式结构为主，遇高温时涂料会膨胀形成炭化隔热层，阻隔火势蔓延。

　　Fireproof bridge frame: usually made of metal (such as galvanized sheet) as the substrate, sprayed with fireproof coating or added with fireproof partition layer (such as silicon fireproof board) on the surface, with a coating thickness generally greater than 500 μ m and a frosted feel. Some models also use flame-retardant composite materials such as fiberglass. Its design focuses on airtightness, with a groove structure as the main feature. When exposed to high temperatures, the coating will expand to form a carbonized insulation layer, blocking the spread of fire.

　　普通桥架：多为镀锌钢板或铝合金制成，表面通过电镀锌或冷镀锌处理，防腐性能较弱，适用于干燥环境。结构类型包括槽式、梯式、托盘式等，无特殊防火处理。

　　Ordinary bridge frame: mostly made of galvanized steel plate or aluminum alloy, with surface treated by electroplating or cold galvanizing, weak anti-corrosion performance, suitable for dry environments. The structural types include groove type, ladder type, tray type, etc., without special fire protection treatment.

　　2. 防火性能

　　2. Fire resistance performance

　　防火桥架：需符合标准（如GB 8624-2012、CECS24:90），耐火时间通常要求≥1小时（地下车库等场所），燃烧性能等级为B1级（B-s1,d0），具有阻燃、隔热、耐高温特性，能有效延缓火势蔓延并保护电缆。

　　Fireproof bridge: It must comply with national standards (such as GB 8624-2012, CECS24:90), with a fire resistance time of at least 1 hour (in underground parking lots and other places), a combustion performance level of B1 (B-S1, d0), flame retardant, thermal insulation, and high temperature resistance characteristics, which can effectively delay the spread of fire and protect cables.

　　普通桥架：无防火要求，火灾中可能加速火势蔓延，仅提供电缆支撑和保护功能。

　　Ordinary cable tray: No fire prevention requirements, may accelerate the spread of fire in case of fire, only provides cable support and protection functions.

　　3. 应用场景

　　3. Application scenarios

　　防火桥架：用于消防设备配电线路（如消防水泵、防排烟风机）、商业建筑、医院、地铁站等高防火要求场所。部分场景需搭配耐火电缆使用。

　　Fireproof bridge: used for fire equipment distribution lines (such as fire pumps, smoke exhaust fans), commercial buildings, hospitals, subway stations and other high fire protection requirements places. Some scenes require the use of fire-resistant cables.

　　普通桥架：适用于一般室内干燥环境（如办公楼、工厂），成本较低，满足常规电缆敷设需求。

　　Ordinary cable tray: suitable for general indoor dry environments (such as office buildings, factories), with low cost, meeting the needs of conventional cable laying.

　　4. 成本与标准

　　4. Costs and Standards

　　防火桥架：因材料和工艺复杂（如防火涂料、多层结构），成本高于普通桥架。需通过严格的防火检测（如耐火极限、烟气毒性等级）。

　　Fireproof bridge frame: Due to the complexity of materials and processes (such as fireproof coatings and multi-layer structures), the cost is higher than that of ordinary bridge frames. Strict fire safety testing (such as fire resistance limit and smoke toxicity level) is required.

　　普通桥架：依据《TCECS 31-2017》标准，注重经济性和安装便利性，防腐处理以镀锌为主。

　　Ordinary bridge frame: According to the TCECS 31-2017 standard, emphasis is placed on economy and installation convenience, and anti-corrosion treatment is mainly carried out by galvanizing.

　　5. 其他特性

　　5. Other characteristics

　　与耐久性：防火桥架的涂料常具备、耐油、耐水特性，使用寿命长；普通桥架在潮湿或腐蚀环境中易生锈。

　　Environmental protection and durability: The coating of fireproof bridge often has non-toxic, oil resistant, and water-resistant characteristics, with a long service life; Ordinary cable trays are prone to rusting in damp or corrosive environments.

　　维护要求：防火桥架需定期检查涂层完整性，普通桥架维护更简单。

　　Maintenance requirements: Fireproof bridge frames need to be regularly checked for coating integrity, while ordinary bridge frames are easier to maintain.

　　总结

　　summary

　　选择时需根据项目需求：防火桥架侧重性与合规性，普通桥架侧重成本与通用性。例如，消防系统必须使用防火桥架，而普通电力布线可选用镀锌桥架。

　　When selecting, it should be based on project requirements: fireproof bridge frames focus on safety and compliance, while ordinary bridge frames focus on cost and universality. For example, fire protection systems must use fire-resistant cable trays, while ordinary power wiring can use galvanized cable trays.

　　本文由  山东电缆桥架厂家 友情奉献.更多有关的知识请点击  http://www.sddlqj.cn/   真诚的态度.为您提供为的服务.更多有关的知识我们将会陆续向大家奉献.敬请期待.

　　This article is a friendly contribution from a cable tray manufacturer in Shandong For more related knowledge, please click http://www.sddlqj.cn/ Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.