一、腐蚀克星，定义强酸碱环境新标准

1、 Corrosion Buster, Defining a New Standard for Strong Acid Base Environment

在化工、电镀、印染及海洋工程等领域，弥漫的酸雾、碱液和盐分是金属材质的天敌。面对这种恶劣环境，以玻璃钢（FRP）和高分子合金为代表的非金属桥架展现出了压倒性优势。玻璃钢桥架以玻璃纤维为增强材料，以高性能树脂为基体，其耐酸碱腐蚀性能可达到F1级标准，能长期耐受pH值3-12范围的化学介质侵蚀。而高分子合金桥架（如ABS/PVC合金）本身不生锈，材料的化学基性与电缆外层塑料相似，不会发生电化学反应，在综合管廊和腐蚀性车间中展现出了出彩佳的长效适应性。

In fields such as chemical engineering, electroplating, printing and dyeing, and marine engineering, diffuse acid mist, alkaline solution, and salt are natural enemies of metal materials. Faced with such harsh environments, non-metallic cable trays represented by fiberglass reinforced plastic (FRP) and polymer alloys have demonstrated overwhelming advantages. Fiberglass bridge is reinforced with glass fiber and based on high-performance resin. Its resistance to acid and alkali corrosion can reach F1 level standards, and it can withstand long-term chemical media corrosion in the pH range of 3-12. Polymer alloy cable trays (such as ABS/PVC alloy) themselves do not rust, and the chemical basicity of the material is similar to that of the plastic outer layer of the cable. They do not undergo electrochemical reactions and demonstrate excellent long-term adaptability in comprehensive pipe galleries and corrosive workshops.

二、绝缘阻燃，构筑电气安全防火墙

2、 Insulation flame retardant, constructing electrical safety firewall

非金属桥架的另一大核心价值在于其出众的电气安全性能。由于材质本身为绝缘体，玻璃钢桥架的绝缘电阻值可超过10??Ω·cm，完全消除了在金属桥架中常见的涡流损耗问题，同时也避免了因电缆绝缘层破损而导致的接地短路风险。更为关键的是，通过在树脂配方中添加阻燃剂，高分子合金桥架的氧指数可高达44%，达到一级阻燃标准，离火1秒内即可自熄。当电缆发生短路起火时，非金属桥架不仅不会助燃，还能形成一道有效的防火隔离带，为人员疏散和火灾扑救争取宝贵时间。

Another major core value of non-metallic cable trays lies in their excellent electrical safety performance. Due to the fact that the material itself is an insulator, the insulation resistance value of the fiberglass bridge can exceed 10?? Ω· cm completely eliminates the common eddy current loss problem in metal cable trays, while also avoiding the risk of grounding short circuit caused by cable insulation damage. More importantly, by adding flame retardants to the resin formula, the oxygen index of the polymer alloy bridge can reach up to 44%, meeting the first level flame retardant standard, and can self extinguish within 1 second of ignition. When a cable short circuits and catches fire, non-metallic cable trays not only do not support combustion, but also form an effective fire isolation zone, buying valuable time for personnel evacuation and fire fighting.

三、轻质高强，大跨距与低维护兼得

3、 Lightweight and high-strength, with both large span and low maintenance

尽管属于非金属类别，但现代复合材料技术赋予了这些桥架惊人的机械性能。玻璃钢拉挤型材的密度仅为碳钢的四分之一，但其设计使用寿命却长达二十年。通过拉挤工艺成型的玻璃钢桥架单根长度可达6-9米，非常适合大型体育馆、机场航站楼等需要大跨距支撑的场所。更重要的是，由于不存在腐蚀问题，这些桥架在安装后无需进行定期涂漆防腐维护，全寿命周期维护成本降低60%以上。虽然初期材料价格可能高于普通钢材，但从长远的运维账本来算，非金属桥架无疑是出彩具远见的投资。

Although belonging to the non-metallic category, modern composite material technology endows these cable trays with astonishing mechanical properties. The density of fiberglass extruded profiles is only a quarter of that of carbon steel, but their designed service life is as long as twenty years. The single length of fiberglass bridge formed by extrusion process can reach 6-9 meters, which is very suitable for large sports venues, airport terminals and other places that require large-span support. More importantly, due to the absence of corrosion issues, these cable trays do not require regular painting and anti-corrosion maintenance after installation, reducing maintenance costs by over 60% throughout their entire lifecycle. Although the initial material prices may be higher than ordinary steel, in terms of long-term operation and maintenance, non-metallic cable trays are undoubtedly a visionary investment.

四、复合工艺，结合金属与非金属精髓

4、 Composite process, integrating the essence of metal and non-metal

为了克服纯非金属桥架横向强度偏弱的短板，近年来出现了复合环氧树脂复合型桥架等创新产品。这类桥架采用钢塑共挤工艺，在镀锌钢衬的外部复合高性能环氧树脂防腐层、防火层和保护层，实现了“内刚外柔”的巧妙结合。这种结构既保留了金属骨架的高承载能力（跨度可达12米以上），又具备了非金属材料的超强防腐和防火性能。其使用寿命被设计为30年以上，甚至有案例显示使用15年后仍未出现褪色或老化现象。这种跨界结合的工艺思路，正在不断拓宽电缆桥架的应用边界。

In order to overcome the weak transverse strength of pure non-metallic cable trays, innovative products such as composite epoxy resin composite cable trays have emerged in recent years. This type of bridge adopts steel plastic co extrusion technology, and is coated with high-performance epoxy resin anti-corrosion layer, fireproof layer and protective layer on the outside of the galvanized steel lining, achieving a perfect combination of "internal rigidity and external flexibility". This structure not only retains the high load-bearing capacity of the metal skeleton (with a span of over 12 meters), but also has the super strong anti-corrosion and fire resistance of non-metallic materials. Its service life is designed to be over 30 years, and there are even cases showing that it has not faded or aged after 15 years of use. This cross-border integration process is constantly expanding the application boundaries of cable trays.