1、桥架不应安装在水管正下方。喷淋头距桥架太近，水将喷撒在桥架内。桥架敷设在蒸汽热力管道的上方，而且无保护措施。

1. The bridge should not be installed directly below the water pipe. The sprinkler head is too close to the bridge, and water will be sprayed inside the bridge. The bridge is laid above the steam heating pipeline without protective measures.

改正：桥架与喷淋头保持一定的安全距离。不建议电缆桥架敷设在热力管道或者腐蚀性气体管道上方及敷设性液体管道的下方。

Correction: Maintain a safe distance between the bridge and the sprinkler head. It is not recommended to lay cable trays above thermal or corrosive gas pipelines and below laying liquid pipelines.

2、桥架穿越墙面、楼面防火封堵不严密，外壳可导电部分与接地母线无连接。

2. The fireproof sealing of the bridge crossing the wall and floor is not tight, and the conductive part of the shell is not connected to the grounding bus.

改正：敷设在竖井内和穿越不同防火区的桥架，按设计要求位置，有防火隔堵措施。桥架的防火封堵内外应在同一平面上，桥架内电缆间的防火堵应严密无缝隙。

Correction: Fireproof and blocking measures shall be taken for bridges laid in shafts and crossing different fire zones according to the design requirements. The fireproof plugs of the bridge should be on the same plane inside and outside, and the fireproof plugs between the cables inside the bridge should be tight and seamless.

3、镀锌槽盒本体间连接板的两端不跨接接地线。

3. The two ends of the connecting plate between the galvanized box bodies are not connected to the ground wire.

改正：镀锌槽盒本体间连接板的两端应跨接接地线。但连接板两端不少于2个有防松螺帽或防松垫圈的连接固定螺栓。

Correction: The two ends of the connecting plate between the bodies of the galvanized trough box should be jumper grounded. However, at least two connecting and fixing bolts with locking nuts or washers shall be provided at both ends of the connecting plate.

4、未使用连接板将 山东电缆桥架的伸缩节固定牢固，接地跨接线连接不完善，伸缩接两边不对称安装支吊架固定。

4. The expansion joint of the Shandong cable bridge was not firmly fixed using a connecting plate, and the grounding jumper connection was incomplete. The two sides of the expansion joint were installed asymmetrically with supports and hangers for fixation.

改正：使用连接板将桥架的伸缩节固定牢固，接地跨接线连接完善，伸缩接两边对称安装支吊架用以固定。

Correction: Fix the expansion joint of the bridge firmly using a connecting plate, connect the grounding jumper wire perfectly, and install supports and hangers symmetrically on both sides of the expansion joint for fixation.

5、连接部位一半设置在墙内，安装维修不便，接地跨接也无法连接

5. Half of the connecting parts are set in the wall, which is inconvenient for installation and maintenance, and the grounding jumper cannot be connected

改正：桥架过墙、过楼板处应提前留置预留洞口，桥架应穿过洞口，不应和混凝土、砂浆直接接触，在穿墙、楼板处应留有一定空隙。桥架连接部位应设置在墙外，便于安装维修。

Correction: Reserved openings should be reserved in advance at the places where the bridge passes through the wall and floor slab. The bridge should pass through the openings and should not be in direct contact with concrete and mortar. A certain gap should be left at the places where the bridge passes through the wall and floor slab. The connection part of the bridge should be set outside the wall for easy installation and maintenance.

6、金属软管未做接地跨接。

6. The metal hose is not connected to a ground jumper.

改正：金属电缆桥架及其支架和引入或引出的金属电缆导管必须接地(PE)或接零(PEN)可靠。

Correction: Metal cable trays and their supports, as well as metal cable conduits introduced or led out, must be reliably grounded (PE) or connected to neutral (PEN).

7、钢管与桥架之间接地，跨接导管与桥架之间没做接地跨接。

7. The steel pipe is grounded to the bridge, and the jumper conduit is not grounded to the bridge.

改正：跨接导管与桥架之间设接地跨接，多根管的接地跨接位置、导线长度、接地卡朝向统一。

Correction: Set a grounding jumper between the jumper conduit and the bridge, and unify the grounding jumper position, wire length, and grounding clamp orientation of multiple conduits.

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