桥架使用期间并不是说一点问题都不会出现，我们所要做的便是采取相应的措施来预防问题存在，下面 山东电缆桥架厂家为您讲解一番吧。

It doesn't mean that there will be no problems during the use of cable tray. What we need to do is to take corresponding measures to prevent problems. Now Shandong cable tray manufacturer will explain it to you.

1、根据建筑物的不同结构，采用合理、相应的固定方法。固定在砖墙上的支臂要做好保湿工作。应用于在坚硬的灰色表面上注浆螺栓，或用干硬细石混凝土捣打螺栓或支架。须有强度后才能固定，但固定吊架和支架的螺栓数量，须与吊孔和支架固定孔的数量相同，全部安装使用，并应有效拧紧.

1. Reasonable and corresponding fixing methods shall be adopted according to different structures of buildings. The arm fixed on the brick wall shall be well moisturized. It shall be used for grouting bolts on hard gray surfaces or ramming bolts or supports with dry hard fine aggregate concrete. It can be fixed only after it has strength, but the number of bolts used to fix the hanger and bracket must be the same as the number of lifting holes and bracket fixing holes, all of which should be installed and used, and should be effectively tightened

2、操作要认真，关节要水平。通过变形缝时，可采取断开措施。断开距离应在100mm左右。该方法用于解决沉降变形对桥架的破坏。

2. The operation shall be careful and the joints shall be horizontal. Breaking measures can be taken when passing through deformation joints. The disconnection distance shall be about 100mm. This method is used to solve the damage of bridge caused by settlement deformation.

3、镀锌桥接板用于跳接地。螺栓须用防松垫紧固，以确保连接牢固。电桥须保证可靠接地。接地（PE）线和电桥须在不少于2处连接。

3. Galvanized bridge plates are used for jump grounding. The bolts must be fastened with locking pads to ensure firm connection. The bridge must be reliably grounded. The grounding (PE) line and the bridge must be connected at not less than 2 places.

4、订购桥架缩径变向接头时，应根据实际情况向生产厂家提出具体技术要求，并提供全套附件。包括固定螺栓、螺母、平垫圈和弹簧垫圈等。

4. When ordering the reducing connector of bridge, specific technical requirements shall be proposed to the manufacturer according to the actual situation, and a full set of accessories shall be provided. Including fixing bolts, nuts, flat washers, spring washers, etc.

5、当桥架穿过地板或防火墙时，须按照设计或本标准的规定进行阻挡。

5. When the bridge passes through the floor or firewall, it must be blocked according to the design or this standard.

6、桥架与其他管道的安全距离应符合表12.10.3（6）的要求。

6. The safe distance between the cable tray and other pipelines shall meet the requirements of Table 12.10.3 (6).

7、安装时应妥善保管桥盖，防止丢失或损坏，以确保盖板安装完整。

7. During installation, the bridge cover shall be properly kept to prevent loss or damage, so as to ensure the complete installation of the cover.

8、电缆桥架直线段每50m（30m）应预留20-30mm的伸缩缝。连接宜采用伸缩连接板，封闭母线槽直段敷设长度每40m应安装伸缩接头。为防止线路敷设时间过长，由于温差的变化，形成应力会导致桥架变形损坏。

8. 20-30mm expansion joint shall be reserved for every 50m (30m) of straight section of cable tray. Expansion joint plate shall be used for connection, and expansion joint shall be installed every 40m of the straight section of enclosed bus duct. In order to prevent the line from being laid for too long, the bridge will be deformed and damaged due to the stress caused by the change of temperature difference.

9、在蒸汽管道上方架设桥架时，应对管道进行屏蔽或保护。无设计要求时，可根据设计要求，采用薄铁板或石棉板挡住。

9. When the bridge is erected above the steam pipe, the pipe shall be shielded or protected. If there is no design requirement, thin iron plate or asbestos plate can be used to block according to the design requirements.

10、桥架污染严重，生锈。应加强安装并处理腐蚀。喷涂应使用与桥架防腐漆相同的材料。

10. The bridge is seriously polluted and rusted. The installation shall be strengthened and the corrosion shall be treated. The same materials as the bridge anti-corrosion paint shall be used for spraying.

11、跳线接地线应符合规范要求或设计要求；但截面不得小于4mm2铜芯线。电缆排列杂乱、交叉；安装前应绘制排布图，确保不交叉，安装时应将线缆摆放整齐，确保线缆排列整齐、整齐。

11. The jumper grounding wire shall meet the specification requirements or design requirements; However, the section shall not be less than 4mm2 copper core wire. Cables are arranged disorderly and crossed; Before installation, the layout diagram shall be drawn to ensure no crossing. During installation, the cables shall be placed in order to ensure that the cables are arranged in order.

12、注意检查桥架与支架之间的固定螺栓，不可省略。

12. Pay attention to check the fixing bolts between the cable tray and the support, which cannot be omitted.

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