在电气布线系统中，桥架如同线缆的 “高速公路”，而各类配件则是这条路上不可或缺的 “交通枢纽” 与 “设施”。它们看似不起眼，却在支撑、连接、转向、防护等环节发挥着关键作用，共同保障线缆系统的有序运行。

　　In the electrical wiring system, cable trays are like a "highway" for cables, and various accessories are indispensable "transportation hubs" and "safety facilities" on this road. They may seem inconspicuous, but they play a crucial role in supporting, connecting, turning, and protecting the cable system, working together to ensure its orderly operation.

　　转向类配件：让线缆 “灵活拐弯”

　　Steering accessories: allowing cables to bend flexibly

　　弯头是桥架转向的核心配件，常见有 90°、45° 等规格，用于改变桥架的敷设方向。当线缆需要绕过梁柱、墙角或调整走向时，弯头能使桥架形成平滑过渡，避免线缆因直角弯折而受损。例如在建筑走廊拐角处，安装 90° 弯头可让桥架贴合墙体走向，既美观又保护线缆绝缘层。

　　Elbows are the core components for turning cable trays, commonly available in specifications such as 90 ° and 45 °, used to change the direction of cable tray installation. When cables need to be routed around beams, columns, corners, or adjusted in direction, bends can create a smooth transition for the cable tray, avoiding damage to the cables due to right angle bending. For example, installing a 90 ° bend at the corner of a building corridor can allow the cable tray to conform to the direction of the wall, which is both aesthetically pleasing and protects the cable insulation layer.

　　三通 / 四通则承担着线缆分支与汇合的功能。三通用于 “一进二出” 或 “二进一出” 的分支场景，如从主桥架向两侧房间分线；四通则适用于 “十字型” 交叉布线，常见于机房等线缆密集区域，让不同方向的线缆通过同一节点有序分流，避免混乱缠绕。

　　The three-way/four-way principle is responsible for the function of cable branching and merging. Three commonly used in branching scenarios of "one in, two out" or "two in, one out", such as branching lines from the main bridge to the rooms on both sides; The four general rules apply to "cross type" cross wiring, commonly found in cable intensive areas such as computer rooms, allowing cables from different directions to be orderly diverted through the same node, avoiding chaotic entanglement.

　　支撑与固定类配件：给桥架 “稳稳的幸福”

　　Supporting and fixing accessories: providing "stable happiness" to the bridge frame

　　支架是桥架的 “骨骼”，根据安装方式分为悬吊式、侧壁式、托臂式等。悬吊式支架通过膨胀螺栓固定在天花板或钢结构上，用吊杆悬挂桥架，适合空旷区域的悬空敷设；侧壁式支架则固定在墙体或立柱上，支撑水平或垂直走向的桥架，常用于室内靠墙布线。

　　The bracket is the "skeleton" of the bridge, which can be divided into suspended, side wall, and arm supported types according to the installation method. The suspended bracket is fixed to the ceiling or steel structure through expansion bolts, and the cable tray is suspended by a suspension rod, suitable for hanging in open areas; Side wall brackets are fixed on walls or columns to support horizontal or vertical cable trays, commonly used for indoor wiring against walls.

　　连接件包括连接片、螺栓螺母等，用于桥架节段之间的固定连接。的连接片能确保桥架整体的刚性与导电性，防止因振动导致的松动，同时保证接地系统的连续性，避免漏电风险。例如在长距离桥架敷设时，每隔一定距离需用连接片将多段桥架连成整体，增强结构稳定性。

　　Connectors include connecting pieces, bolts and nuts, etc., used for fixed connections between bridge segments. High quality connectors can ensure the overall rigidity and conductivity of the bridge, prevent loosening caused by vibration, and ensure the continuity of the grounding system to avoid the risk of leakage. For example, when laying long-distance cable trays, connecting pieces are needed at regular intervals to connect multiple sections of the tray as a whole and enhance structural stability.

　　防护与封闭类配件：为线缆 “遮风挡雨”

　　Protective and enclosed accessories: providing "wind and rain protection" for cables

　　盖板覆盖在桥架上方，是线缆的 “防护罩”。它能阻挡灰尘、水汽、杂物进入桥架内部，避免线缆因积尘受潮而老化，同时防止人为触碰或外物撞击导致的线缆损伤。在机房、地下室等环境中，盖板还能减少电磁干扰，保障信号线缆的传输质量。

　　The cover plate covers the cable tray and serves as the "protective shield" for the cables. It can prevent dust, water vapor, and debris from entering the interior of the cable tray, avoiding cable aging caused by dust and moisture accumulation, and preventing cable damage caused by human touch or external object impact. In environments such as computer rooms and basements, cover plates can also reduce electromagnetic interference and ensure the transmission quality of signal cables.

　　隔板用于桥架内部的空间分隔，可将不同类型的线缆（如强电与弱电、高压与低压）分区域敷设，避免相互干扰。例如在综合布线系统中，用隔板将电源线与网络线分开，既能保证信号稳定，又能降低隐患。

　　The partition is used to separate the space inside the cable tray, allowing different types of cables (such as strong and weak electricity, high and low voltage) to be laid in different zones to avoid mutual interference. For example, in a comprehensive cabling system, using partitions to separate power lines from network lines can ensure signal stability and reduce safety hazards.

　　特殊场景专用配件：应对 “疑难杂症”

　　Special accessories for special scenarios: to deal with "difficult and complicated problems"

　　变径接头用于连接不同规格的桥架，如从宽桥架过渡到窄桥架，或从高桥架转向低桥架，确保线缆平滑过渡，避免因截面突变导致的线缆挤压。在楼层间桥架上下穿越时，变径接头可匹配不同楼层预留孔的尺寸，保证布线顺畅。

　　Variable diameter connectors are used to connect cable trays of different specifications, such as transitioning from wide to narrow trays, or from high to low trays, to ensure smooth cable transitions and avoid cable compression caused by sudden cross-sectional changes. When crossing the bridge between floors, the variable diameter joint can match the size of the reserved holes on different floors to ensure smooth wiring.

　　防火封堵件在消防要求高的场所必不可少，包括防火泥、防火板等。当桥架穿越防火墙或楼板时，用防火封堵件填充缝隙，能阻止火焰和烟雾蔓延，满足建筑防火规范。例如在高层建筑中，每层楼板处的桥架缝隙都需用防火材料密封，形成防火分区。

　　Fireproof sealing components are essential in places with high fire safety requirements, including fireproof mud, fireproof boards, etc. When the bridge passes through firewalls or floor slabs, filling the gaps with fireproof sealing components can prevent the spread of flames and smoke and meet building fire safety regulations. For example, in high-rise buildings, the gaps between the cable trays at each floor slab need to be sealed with fire-resistant materials to form fire compartments.

　　细节辅助类配件：“小身材大作用”

　　Detail auxiliary accessories: "Small body, big effect"

　　接地跨接线是桥架接地系统的关键，通过铜编织带或导线连接桥架各段，确保整体接地导通，防止静电积累和漏电事故。尤其在易燃易爆场所，可靠的接地能有效避免电火花产生。

　　Grounding jumper wire is the key to the bridge grounding system, which connects each section of the bridge through copper braided tape or wire to ensure overall grounding continuity and prevent static electricity accumulation and leakage accidents. Especially in flammable and explosive places, reliable grounding can effectively prevent the generation of electric sparks.

　　线缆固定夹用于桥架内部线缆的整理，将线缆按束固定，避免晃动磨损，同时让布线更整齐美观，方便后期维护检修。在数据中心等需要频繁增减线缆的场景中，固定夹可快速调整线缆布局，提升管理效率。

　　Cable fixing clips are used for organizing cables inside cable trays, fixing them in bundles to avoid shaking and wear, and making the wiring more neat and beautiful, facilitating later maintenance and repair. In scenarios such as data centers that require frequent addition or removal of cables, fixed clips can quickly adjust cable layout and improve management efficiency.

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