1、橋架不應安裝在水管正下方。噴淋頭距橋架太近，水將噴撒在橋架內。橋架敷設在蒸汽熱力管道的上方，而且無保護措施。

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：橋架與噴淋頭保持一定的安全距離。不建議電纜橋架敷設在熱力管道或者腐蝕性氣體管道上方及敷設性液體管道的下方。

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、橋架穿越墻面、樓面防火封堵不嚴密，外殼可導電部分與接地母線無連接。

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：敷設在豎井內和穿越不同防火區的橋架，按設計要求位置，有防火隔堵措施。橋架的防火封堵內外應在同一平面上，橋架內電纜間的防火堵應嚴密無縫隙。

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、鍍鋅槽盒本體間連接板的兩端不跨接接地線。

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

改正：鍍鋅槽盒本體間連接板的兩端應跨接接地線。但連接板兩端不少于2個有防松螺帽或防松墊圈的連接固定螺栓。

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、未使用連接板將山東電纜橋架的伸縮節固定牢固，接地跨接線連接不完善，伸縮接兩邊不對稱安裝支吊架固定。

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：使用連接板將橋架的伸縮節固定牢固，接地跨接線連接完善，伸縮接兩邊對稱安裝支吊架用以固定。

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、連接部位一半設置在墻內，安裝維修不便，接地跨接也無法連接

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：橋架過墻、過樓板處應提前留置預留洞口，橋架應穿過洞口，不應和混凝土、砂漿直接接觸，在穿墻、樓板處應留有一定空隙。橋架連接部位應設置在墻外，便于安裝維修。

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、金屬軟管未做接地跨接。

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

改正：金屬電纜橋架及其支架和引入或引出的金屬電纜導管必須接地(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、鋼管與橋架之間接地，跨接導管與橋架之間沒做接地跨接。

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

改正：跨接導管與橋架之間設接地跨接，多根管的接地跨接位置、導線長度、接地卡朝向統一。

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.

橋架施工時幾條易錯的做法相關內容就從七個方面來講解了，您對此有需求嗎？可關注我們網站http://www.yeeones.com隨時隨地咨詢!

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