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镀锌桥架与防火桥架有什么区别?

文章来源:/   作者:电缆桥架厂家发布时间:2024-03-16 浏览次数:1

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镀锌桥架是一种常见的电缆敷设和保护设备,具有良好的耐腐蚀性能和机械强度。但是,镀锌桥架在防火性能方面相对较弱,不能起到有效的防火作用。与之相比,防火桥架是专门设计用于提供更别的防火保护的一种桥架。

Galvanized cable tray is a common cable laying and protection equipment with good corrosion resistance and mechanical strength. However, galvanized cable trays have relatively weak fire resistance and cannot effectively prevent fire. In contrast, fire-resistant cable trays are a type of cable tray specifically designed to provide higher levels of fire protection.

,镀锌桥架的防火性能主要来自于镀锌层的阻燃性能。镀锌层是由锌与钢结合形成的一种保护层,当遭受高温时,锌会生成一层致密的氧化锌层,起到隔热和隔烟的作用。然而,由于镀锌桥架的材料主要是钢,钢在高温下会迅速失去强度,所以其抗火能力相对较弱。

Firstly, the fire resistance of galvanized cable trays mainly comes from the flame retardant performance o

20230310110134232.jpgf the galvanized layer. Galvanized layer is a protective layer formed by the combination of zinc and steel. When subjected to high temperature, zinc will form a dense layer of zinc oxide, which plays a role in insulation and smoke isolation. However, due to the fact that the material of galvanized cable trays is mainly steel, steel will quickly lose its strength at high temperatures, so its fire resistance is relatively weak.

而防火桥架则是针对火灾场景设计的一种特殊桥架。它采用了阻燃材料和隔热材料,并且在桥架的结构设计上进行了优化,以提高其抗火性能。防火桥架通常采用阻燃钢、阻燃塑料等材料作为主要构件,这些材料在高温下具有较好的阻燃性能,不易燃烧和传播火势。此外,防火桥架还采用了隔热材料,如岩棉、玻璃纤维等,用于减少火灾时的热量传导和辐射,保护电缆不受高温影响。

Fireproof cable tray is a special type of cable tray designed for fire scenarios. It adopts flame retardant and insulation materials, and has been optimized in the structural design of the bridge to improve its fire resistance performance. Fireproof cable trays usually use flame-retardant steel, flame-retardant plastics and other materials as the main components, which have good flame retardant performance at high temperatures and are not easy to burn and spread fire. In addition, fire-resistant cable trays also use insulation materials such as rock wool and fiberglass to reduce heat conduction and radiation during fires, protecting cables from high temperatures.

防火桥架的结构设计也与普通电缆桥架有所不同。防火桥架通常采用封闭式结构,即在桥架上设置防火板,以阻止火势的传播。同时,防火桥架还会设置防火密封件,用于阻止火势从桥架的缝隙中进入桥架内部,保护电缆的。

The structural design of fire-resistant cable trays is also different from that of ordinary cable trays. Fireproof cable trays usually adopt a closed structure, that is, fire boards are installed on the cable tray to prevent the spread of fire. At the same time, fire-resistant cable trays will also be equipped with fire-resistant sealing components to prevent fire from entering the interior of the cable tray through the gaps, protecting the safety of the cables.

总的来说,镀锌桥架在防火性能方面相对较弱,不能起到有效的防火作用。而防火桥架通过采用阻燃材料、隔热材料和特殊结构设计,提供更别的防火保护。因此,在需要高度防火的场所,如公共建筑、医院、地铁等,应选择防火桥架来保护电缆的。

Overall, galvanized cable trays have relatively weak fire resistance and cannot effectively prevent fire. Fireproof cable trays provide a higher level of fire protection by using flame retardant materials, insulation materials, and special structural designs. Therefore, in places that require high fire resistance, such as public buildings, hospitals, subways, etc., fire-resistant cable trays should be selected to protect the safety of cables.

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