警惕！光伏桥架安装漏项=验收不合格！山东电缆桥架规范施工全解析，附防火封堵标准

　　be vigilant! PV bridge installation missing item=unqualified acceptance! Full analysis of Shandong cable tray construction specifications, with fire sealing standards attached

　　在光伏电站建设中，电缆桥架作为支撑、保护光伏直流线、控制线的核心辅材，其安装质量直接决定电站布线、设备稳定运行及工程验收通过率。据行业统计，40%的光伏电站验收返工，源于电缆桥架安装不规范，其中防火封堵不到位、标记缺失、防火涂料涂刷不达标等问题为突出。山东电缆桥架凭借适配光伏场景的设计、严格的施工标准，成为光伏电站建设的优选辅材，本文结合兆秀辅材业光伏桥架安装实操经验，详解山东电缆桥架在光伏项目中的规范安装全流程，助力施工单位规避验收风险、保障工程质量。

　　In the construction of photovoltaic power stations, cable trays serve as the core auxiliary materials for supporting and protecting photovoltaic DC lines and control lines. Their installation quality directly determines the safety of power station wiring, stable operation of equipment, and project acceptance rate. According to industry statistics, 40% of photovoltaic power plant acceptance rework is due to improper installation of cable trays, with the most prominent issues being inadequate fireproof sealing, missing markings, and substandard fireproof coating application. Shandong cable trays have become the preferred auxiliary materials for photovoltaic power station construction due to their professional design and strict construction standards that are suitable for photovoltaic scenarios. This article combines the practical experience of installing photovoltaic trays in Zhaoxiu Auxiliary Materials Industry to explain in detail the standardized installation process of Shandong cable trays in photovoltaic projects, helping construction units avoid acceptance risks and ensure project quality.

　　山东电缆桥架针对光伏户外场景特性，在材质选型、结构设计上进行专项优化，选用耐候性强、防腐蚀的钢材，可适应户外高低温、雨雪、紫外线等复杂环境，使用寿命可达20年以上，远超普通电缆桥架10年的平均使用寿命，有效降低光伏电站后期运维成本。同时，光伏专用山东电缆桥架采用模块化设计，安装便捷，可大幅提升施工进度，相较于传统桥架，安装效率提升30%，适配各类光伏电站的布线需求。

　　Shandong cable trays have been specially optimized in material selection and structural design based on the characteristics of outdoor photovoltaic scenarios. High quality steel with strong weather resistance and corrosion resistance is selected, which can adapt to complex outdoor environments such as high and low temperatures, rain and snow, and ultraviolet radiation. The service life can reach more than 20 years, far exceeding the average service life of ordinary cable trays by 10 years, effectively reducing the later operation and maintenance costs of photovoltaic power plants. At the same time, the photovoltaic dedicated Shandong cable tray adopts a modular design, which is easy and efficient to install, and can greatly improve the construction progress. Compared with traditional trays, the installation efficiency is increased by 30%, and it is suitable for the wiring needs of various photovoltaic power stations.

　　光伏项目中，山东电缆桥架安装的核心的是“规范敷设、精准封堵、严格防火”，每一个环节都需符合《建筑电气工程施工质量验收规范》GB 50303-2015要求，全程杜绝漏项、错项，具体施工流程及关键要点如下：

　　In the photovoltaic project, the core focus of cable tray installation in Shandong is "standardized laying, precise sealing, and strict fire prevention". Each link must comply with the requirements of the "Code for Acceptance of Construction Quality of Building Electrical Engineering" GB 50303-2015, and eliminate omissions and errors throughout the process. The specific construction process and key points are as follows:

　　，桥架敷设与固定完成后，需做好封盖安装与区域标记。封盖安装需贴合桥架本体，确保缝隙严密，杜绝灰尘、雨水进入桥架内部，避免侵蚀电缆、影响导电性能；同时，需对光伏桥架的封堵区域进行明确标记，标记需清晰、规范，便于后期巡检、维护及验收，杜绝因标记缺失导致的施工漏项、维护不便等问题，这也是光伏桥架安装中易忽视却关重要的环节。

　　Firstly, after the installation and fixation of the bridge frame, it is necessary to focus on the installation of covers and area marking. The installation of the cover should be closely attached to the bridge body to ensure tight gaps, prevent dust and rainwater from entering the interior of the bridge, and avoid corroding the cable and affecting its conductivity; At the same time, it is necessary to clearly mark the sealing area of the photovoltaic bridge, which should be clear and standardized, for easy inspection, maintenance and acceptance in the later stage, and to eliminate problems such as construction omissions and inconvenient maintenance caused by missing markings. This is also the most easily overlooked but crucial link in the installation of photovoltaic bridge.

　　其次，防火封堵与防火涂料涂刷需严格遵循标准，守住消防底线。光伏桥架的封堵区域（尤其是直流线穿越处、桥架接口处），需采用符合规范的无机堵料（膨胀倍率≥250%）进行严密封堵，确保无缝隙、无遗漏，防止火灾发生时火势通过桥架蔓延；同时，封堵区域周边1.5米范围内，必须均匀涂刷防火涂料，涂刷厚度不低于0.5mm，涂刷覆盖率需达到100%，严禁漏刷、少刷，确保防火性能达标，这是光伏电站消防验收的核心考核项。

　　Secondly, fireproof sealing and fireproof coating application must strictly follow the standards to maintain the bottom line of fire safety. The sealing area of the photovoltaic bridge (especially the DC line crossing and bridge interface) should be tightly sealed with inorganic sealing materials that meet the specifications (expansion ratio ≥ 250%) to ensure no gaps or omissions, and to prevent the spread of fire through the bridge in case of a fire; At the same time, within a radius of 1.5 meters around the sealed area, fireproof coating must be evenly applied with a thickness of not less than 0.5mm and a coverage rate of 100%. It is strictly prohibited to miss or brush less to ensure that the fireproof performance meets the standard. This is the core assessment item for the fire safety acceptance of photovoltaic power plants.

　　直流线封堵是光伏桥架安装的另一关键要点。光伏直流线传输过程中，若封堵不严密，易出现水汽、灰尘侵入，导致线路短路、老化加速，甚引发事故。施工中，需采用光伏专用封堵材料，对直流线与桥架的连接处进行精准封堵，确保密封可靠，同时避免封堵材料挤压线路，保障直流线传输顺畅，兼顾性与实用性。

　　DC line blocking is another key point in the installation of photovoltaic cable trays. During the transmission process of photovoltaic DC lines, if the sealing is not tight, it is easy for water vapor and dust to enter, causing short circuits, accelerated aging, and even safety accidents. During construction, it is necessary to use photovoltaic specific sealing materials to accurately seal the connection between the DC line and the bridge frame, ensuring reliable sealing while avoiding the compression of the line by the sealing materials, ensuring smooth transmission of the DC line, and balancing safety and practicality.

　　值得注意的是，山东电缆桥架在光伏项目中的安装，需全程遵循“先检查、后安装、再验收”的原则。安装前，需检查桥架材质、规格是否符合设计要求，确保无变形、无破损、防腐涂层完好；安装过程中，需实时把控封盖安装、标记、防火封堵、涂料涂刷等细节，每完成一个环节，进行专项检查，及时整改问题；安装完成后，需进行验收，核查封堵质量、防火涂料涂刷情况、标记完整性，确保所有环节符合规范，避免因细节问题导致验收返工。

　　It is worth noting that the installation of Shandong cable trays in photovoltaic projects must follow the principle of "inspection first, installation later, and acceptance later" throughout the process. Before installation, it is necessary to check whether the material and specifications of the bridge meet the design requirements, to ensure that there is no deformation, no damage, and the anti-corrosion coating is intact; During the installation process, it is necessary to control the installation, marking, fireproof sealing, coating and other details of the cover in real time. After each step is completed, a special inspection should be conducted to promptly rectify any problems; After installation, a comprehensive acceptance is required, with a focus on checking the quality of sealing, the application of fireproof coating, and the completeness of markings to ensure that all aspects comply with specifications and avoid rework due to details.

　　作为光伏电站辅材的核心组成部分，山东电缆桥架的安装规范与否，直接关系到光伏电站的长期稳定运行与消防。相较于普通电缆桥架，山东电缆桥架凭借适配光伏场景的优势、严格的质量管控，以及规范的施工标准，有效解决了光伏桥架安装中“封堵不严、防火不到位、标记缺失”等行业痛点，助力施工单位提升施工效率、降低验收风险，同时为光伏电站的稳定运行筑牢基础。

　　As a core component of auxiliary materials for photovoltaic power plants, the installation standards of cable trays in Shandong directly affect the long-term stable operation and fire safety of photovoltaic power plants. Compared with ordinary cable trays, Shandong cable trays have effectively solved industry pain points such as "lax sealing, inadequate fire prevention, and missing markings" in the installation of photovoltaic trays, thanks to their professional advantages in adapting to photovoltaic scenarios, strict quality control, and standardized construction standards. They help construction units improve construction efficiency, reduce acceptance risks, and lay a solid foundation for the safe and stable operation of photovoltaic power plants.

　　兆秀辅材业深耕光伏辅材领域多年，在山东电缆桥架安装方面积累了丰富的实操经验，严格按照规范流程施工，把控每一个细节，确保桥架安装质量达标、验收一次通过。未来，我们将持续优化山东电缆桥架的产品性能与施工服务，结合光伏电站建设需求，提供更具针对性的桥架解决方案，助力光伏行业高质量发展，为光伏电站运行保驾护航。

　　Zhaoxiu Auxiliary Materials Industry has been deeply involved in the field of photovoltaic auxiliary materials for many years, and has accumulated rich practical experience in the installation of cable trays in Shandong. It strictly follows the standardized construction process, focuses on controlling every detail, and ensures that the installation quality of the tray meets the standard and passes the acceptance inspection once. In the future, we will continue to optimize the product performance and construction services of Shandong cable trays, and provide more targeted tray solutions based on the construction needs of photovoltaic power stations, to help the high-quality development of the photovoltaic industry and safeguard the safe operation of photovoltaic power stations.

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