在办公楼、商业综合体、酒店等民用建筑中，电缆桥架是电气布线的核心载体。这类场景中，电力电缆需为照明、空调、办公设备供电，控制电缆则连接楼宇自控系统，而桥架能将不同功能的电缆分类敷设，避免信号干扰。通常选用槽式或托盘式桥架，前者可保护电缆免受灰尘、轻微碰撞影响，后者便于检修时观察电缆状态。例如，在高层写字楼的吊顶内，桥架沿梁或钢结构敷设，将电缆从配电室引至各楼层配电箱，安装灵活且后期维护成本低。
In office buildings, commercial complexes, hotels, and other civil buildings, cable trays are the core carriers for electrical wiring. In such scenarios, power cables need to supply electricity to lighting, air conditioning, and office equipment, while control cables connect the building automation system. Cable trays can lay cables of different functions in categories to avoid signal interference. Trough-type or tray-type cable trays are usually selected: the former can protect cables from dust and slight collisions, and the latter facilitates observing the cable status during maintenance. For example, in the ceiling of a high-rise office building, cable trays are laid along beams or steel structures to lead cables from the power distribution room to the distribution boxes on each floor, featuring flexible installation and low later maintenance costs.
汽车制造、机械加工、冶金等工业厂房对电缆桥架的承载能力和耐环境性要求更高。这类场景中，电缆不仅数量多，还常伴随大功率设备的重型电缆，且环境可能存在油污、振动、高温等问题。因此，多采用钢制梯式桥架或铝合金桥架 —— 梯式桥架的镂空结构利于散热，适配高温环境下的电缆敷设；铝合金桥架则凭借轻量化和抗油污腐蚀的特点，适合机械加工车间的频繁设备移动场景。例如，在汽车焊接车间，桥架需承载焊接设备的高压电缆，其厚度和跨距设计需满足重载需求，同时表面的防腐涂层能抵御焊接烟尘的侵蚀。
Industrial plants such as automobile manufacturing, machinery processing, and metallurgy have higher requirements for the load-bearing capacity and environmental resistance of cable trays. In such scenarios, there are not only a large number of cables but also heavy-duty cables for high-power equipment, and the environment may have problems such as oil pollution, vibration, and high temperature. Therefore, steel ladder-type cable trays or aluminum alloy cable trays are mostly used: the hollow structure of ladder-type cable trays is conducive to heat dissipation, which is suitable for cable laying in high-temperature environments; aluminum alloy cable trays, with the characteristics of lightweight and oil pollution corrosion resistance, are suitable for frequent equipment movement scenarios in machinery processing workshops. For example, in an automobile welding workshop, cable trays need to carry high-voltage cables of welding equipment, and their thickness and span design must meet heavy-load requirements, while the anti-corrosion coating on the surface can resist the erosion of welding fumes.
数据中心是电缆桥架的高密度应用场景，服务器、交换机、存储设备等需大量数据电缆和电力电缆连接，对布线的规整性和扩容性要求严苛。此处多选用托盘式桥架或网格桥架，托盘式桥架能容纳多根超六类网线、光纤及电源线，分类敷设可降低电磁干扰；网格桥架则因开放性结构，便于电缆散热和快速增减线路，适配数据中心频繁的设备升级需求。例如，在大型云计算数据中心，桥架沿机柜列平行敷设，通过分支桥架直接连接各机柜，实现 “机柜 - 桥架 - 配电室” 的无缝布线，保障数据传输的稳定性。
Data centers are high-density application scenarios for cable trays. Servers, switches, storage devices, and other equipment require a large number of data cables and power cables for connection, which have strict requirements for the regularity and expandability of wiring. Tray-type cable trays or grid cable trays are mostly used here: tray-type cable trays can accommodate multiple Cat6a network cables, optical fibers, and power cables, and classified laying can reduce electromagnetic interference; grid cable trays, due to their open structure, facilitate cable heat dissipation and rapid addition/removal of lines, adapting to the frequent equipment upgrade needs of data centers. For example, in a large cloud computing data center, cable trays are laid parallel to the cabinet rows, and each cabinet is directly connected through branch cable trays, realizing seamless wiring from "cabinet - cable tray - power distribution room" and ensuring the stability of data transmission.
地铁、高铁站、机场、高速公路等交通基础设施中，电缆桥架主要用于敷设信号控制电缆、监控电缆和动力电缆。这类场景多处于地下或露天环境，潮湿、振动、电磁干扰是主要挑战。例如，地铁隧道内选用防腐性能优异的热浸镀锌钢制桥架，其表面镀锌层厚度≥65μm，可抵御隧道内的潮湿水汽；同时，桥架通过防震支架固定，减少列车通行时的振动对电缆连接的影响。在高速公路的收费站，桥架则沿收费大棚钢结构敷设，为收费系统、监控摄像头和照明设备传输电力与信号。
In transportation infrastructures such as subways, high-speed railway stations, airports, and expressways, cable trays are mainly used to lay signal control cables, monitoring cables, and power cables. Most of these scenarios are in underground or open-air environments, with moisture, vibration, and electromagnetic interference as the main challenges. For example, hot-dip galvanized steel cable trays with excellent anti-corrosion performance are selected in subway tunnels, and their surface galvanized layer thickness is ≥65μm, which can resist the humid water vapor in the tunnels; at the same time, the cable trays are fixed by anti-vibration brackets to reduce the impact of vibration during train passage on cable connections. At the toll stations of expressways, cable trays are laid along the steel structure of the toll shed to transmit power and signals for the toll system, surveillance cameras, and lighting equipment.
火电厂、风电场、水电站等能源设施中，电缆桥架需承载大量高压、大截面电缆，且常面临户外、高温或多粉尘环境。火电厂的汽机房内，高温环境要求桥架选用耐高温钢制桥架，其板材厚度比常规桥架增加 0.5-1.0mm，以避免高温变形；风电场的风机塔筒内，桥架需沿塔筒垂直敷设，因空间狭窄，多采用紧凑型梯式桥架，既节省空间又便于电缆检修。在水电站的厂房内，桥架还需具备一定的防水性能，防止水汽进入电缆绝缘层，保障发电设备的稳定运行。
In energy facilities such as thermal power plants, wind farms, and hydropower stations, cable trays need to carry a large number of high-voltage and large-section cables, and often face outdoor, high-temperature, or dusty environments. In the turbine room of a thermal power plant, the high-temperature environment requires the selection of high-temperature resistant steel cable trays, whose plate thickness is 0.5-1.0mm thicker than conventional cable trays to avoid high-temperature deformation; in the wind turbine tower of a wind farm, cable trays need to be laid vertically along the tower. Due to the narrow space, compact ladder-type cable trays are mostly used, which not only save space but also facilitate cable maintenance. In the plant of a hydropower station, the cable trays also need to have a certain waterproof performance to prevent water vapor from entering the cable insulation layer and ensure the stable operation of power generation equipment.
化工厂、制药厂、海边化工园区等场景中，空气中含有酸碱气体、腐蚀性液体挥发物，对电缆桥架的防腐性能提出极高要求。常规钢制桥架易被腐蚀，因此多选用玻璃钢（FRP）桥架或衬塑钢制桥架。玻璃钢桥架的氧指数≥35，不仅耐酸碱腐蚀，还具备防火性能，适合敷设输送化工原料管道旁的电缆；衬塑钢制桥架则在钢制桥架内壁复合防腐塑料层，既保留钢制桥架的承载能力，又能抵御化工环境的腐蚀。例如，在海边盐化工园区，玻璃钢桥架沿装置区的管廊敷设，为反应釜、计量泵等设备的控制电缆提供保护。
In scenarios such as chemical plants, pharmaceutical factories, and coastal chemical parks, the air contains acid-base gases and volatile corrosive liquids, which put extremely high requirements on the anti-corrosion performance of cable trays. Conventional steel cable trays are easily corroded, so fiberglass reinforced plastic (FRP) cable trays or plastic-lined steel cable trays are mostly used. The oxygen index of FRP cable trays is ≥35, which is not only acid and alkali corrosion resistant but also has fire resistance, suitable for laying cables next to pipelines that transport chemical raw materials; plastic-lined steel cable trays are composite with anti-corrosion plastic layers on the inner wall of steel cable trays, which not only retain the load-bearing capacity of steel cable trays but also resist corrosion in chemical environments. For example, in a coastal salt chemical park, FRP cable trays are laid along the pipe gallery in the device area to protect the control cables of reactors, metering pumps, and other equipment.
