山东电缆桥架安装验收

Installation and acceptance of cable tray in Shandong

电缆桥架的型号、规格和数量必须与采购订单一致，材料和厚度要符合要求。一般桥梁宽度超过300mm时，钢板厚度为1.5mm。桥梁宽度超过300mm时，钢板厚度大于等于2mm，连接板厚度与桥梁相同。

The model, specification and quantity of cable tray must be consistent with the purchase order, and the material and thickness must meet the requirements. When the width of general bridge exceeds 300mm, the thickness of steel plate is 1.5mm. When the width of the bridge exceeds 300mm, the thickness of the steel plate is greater than or equal to 2mm, and the thickness of the connecting plate is the same as that of the bridge.

电缆槽组件的品种、规格、数量是否与订单一致，包括零件的弯曲方向、槽盖的设置和位置等是否正确。

Whether the type, specification and quantity of cable tray components are consistent with the order, including whether the bending direction of parts, the setting and position of tray cover are correct.

电缆、支架的品种、规格、数量是否与采购订单一致，紧固附件是否正确。桥架连接板及紧固附件是否正确。所有母线槽、部件、吊架是否有机械损伤，金属材料防腐是否均匀、完整、不流动、不透水。

Whether the variety, specification and quantity of cables and supports are consistent with the purchase order, and whether the fastening accessories are correct. Whether the bridge connecting plate and fastening accessories are correct. Whether all bus ducts, components and hangers are mechanically damaged, and whether the corrosion protection of metal materials is uniform, complete, non flowing and impermeable.

现场组装进线母线槽及部件，检查接头是否均匀，不大于1mm。如有防火要求，应在有效期内收到防火记录，确保防火产品质量合格可靠。

Assemble the incoming bus duct and components on site, and check whether the joint is uniform and no more than 1mm. If there are fire protection requirements, fire protection records shall be received within the validity period to ensure that the quality of fire protection products is qualified and reliable.

选择 山东电缆桥架要点

Key points of selecting Shandong cable tray

桥梁、线槽、支架用于腐蚀环境，应采用耐腐蚀的硬质材料或进行防腐处理，并应符合工程环境和耐久性的要求。

Bridges, trunking and supports used in corrosive environment shall adopt corrosion-resistant hard materials or undergo anti-corrosion treatment, and shall meet the requirements of engineering environment and durability.

桥梁有防火要求的，可在桥架和桥架上加装耐火或耐火板、网等材料，形成封闭或半封闭结构，并采取涂刷桥面、基础等措施可以带防火漆。整体耐火性能必须符合相关规范或标准的要求。

If the bridge has fire prevention requirements, fire-resistant or fire-resistant plates, nets and other materials can be added to the bridge and bridge to form a closed or semi closed structure, and measures such as painting the bridge deck and foundation can be taken to bring fire-proof paint. The overall fire resistance performance must meet the requirements of relevant national codes or standards.

铝合金桥架不得用于防火要求较高的场所。电缆支架的宽度和高度应满足充电率的要求。一般情况下，电缆支架的充电率为电源线的40%~50%，控制电缆的50%~70%，保证了10%~25%的工程开发余量。

Aluminum alloy bridge shall not be used in places with high fire protection requirements. The width and height of cable support shall meet the requirements of charging rate. Generally, the charging rate of the cable support is 40%~50% of the power line and 50%~70% of the control cable, ensuring a 10%~25% engineering development margin.

选择索梯的荷载等级时，桥架的工作均布荷载不能大于所选桥架荷载等级的额定均布荷载。如果桥梁支座距离实际跨度不超过2m，则工作均布荷载必须满足要求。

When selecting the load grade of the cable ladder, the working uniform load of the bridge shall not be greater than the rated uniform load of the selected bridge load grade. If the distance between the bridge support and the actual span does not exceed 2m, the uniformly distributed working load must meet the requirements.

如果各种构件和支架满足载荷，本规范的尺寸应与桥梁、梯子和弯架系列的直线段一致。选择桥内弯头或设备时，不应低于桥内电缆的允许弯曲半径。

If the various members and supports meet the load, the dimensions of this specification shall be consistent with the straight sections of the bridge, ladder and bent frame series. When selecting the elbow or equipment in the bridge, it shall not be lower than the allowable bending radius of the cable in the bridge.

跨度大于6m的钢桥和跨度大于2m或D级荷载的铝合金桥，其强度、刚度和稳定性应根据工程条件通过计算或试验验证。

The strength, stiffness and stability of steel bridges with a span greater than 6m and aluminum alloy bridges with a span greater than 2m or class D load shall be verified by calculation or test according to the engineering conditions.

如果多组托盘平行铺设在同一高度，则必须考虑相邻电缆槽之间的维护和服务距离。

If multiple sets of trays are laid in parallel at the same height, the maintenance and service distance between adjacent cable trays must be considered.

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