橋架在電氣線路敷設建設中發揮重要的作用，具有廣泛的應用，是整個電氣線路的良好運行的重要保障，但是，在山東橋架的真實安裝過程中仍然會存在一定的質量問題，對橋架的作用發揮造成影響。

Bridge plays an important role in the laying and construction of electrical circuits, and has a wide range of applications. It is an important guarantee for the good operation of the entire electrical circuit. However, there are still certain quality issues in the actual installation process of Shandong bridge, which will affect the effectiveness of the bridge.

（1）橋架變形縫處缺乏補償措施或直線段過長。

(1) Lack of compensation measures at the deformation joint of the bridge or excessively long straight sections.

在橋架安裝過程中，會出現橋架在穿過變形縫處沒有設置補償設施，橋架直線段過長，超過了標準要求，也沒有采取安裝伸縮板等補償措施。這些問題就會對橋架造成不利影響，橋架直線段長度過長，而且沒有按照相關要求采取安裝伸縮板等補償措施，就會使得橋架更容易受到溫度的影響。

During the installation process of the bridge, it may occur that there are no compensation facilities installed at the point where the bridge passes through the deformation joint, the straight section of the bridge is too long, exceeding the standard requirements, and compensation measures such as installing expansion plates have not been taken. These issues will have a negative impact on the bridge. The straight section length of the bridge is too long, and compensation measures such as installing expansion plates are not taken according to relevant requirements, which will make the bridge more susceptible to temperature effects.

建筑物在溫度較高的情況下，膨脹量會變大，超過橋架的膨脹量，從而導致橋架的變形。同時，在橋架變形縫處沒有進行補償措施的設置，同樣會對建筑物造成不利影響，使得建筑物在進行變形和伸縮變化時，有的可能會使橋架發生變形，進而對電纜線路的質量造成影響。

When the temperature of a building is high, the expansion amount will increase, exceeding the expansion amount of the bridge, resulting in the deformation of the bridge. At the same time, the absence of compensation measures at the deformation joints of the bridge can also have adverse effects on the building, causing some of the bridge to deform and affect the quality of the cable line during deformation and expansion changes.

（2）橋架安裝時跨接接地不合格。

(2) The bridging grounding during bridge installation is not qualified.

在橋架安裝時還會出現跨接接地不合格的問題，主要表現為：

During the installation of the bridge, there may also be issues with unqualified grounding of the bridge, mainly manifested as:

橋架跨接地線較細，截面積小于要求的4mm3，鍍鋅的橋架在連接板的兩端沒有安置防松的螺帽或者是防松的墊圈；在安裝時，工作人員利用電焊把接地線焊到橋架上，從而造成橋架的保護層脫落；橋架的支架和金屬的電纜導管沒有接地，與地干線連接的點較少；

The bridge grounding wire is relatively thin, with a cross-sectional area less than the required 4mm3. The galvanized bridge does not have anti loosening nuts or washers installed at both ends of the connecting plate; During installation, the staff used electric welding to weld the grounding wire to the bridge, causing the protective layer of the bridge to fall off; The support of the bridge and the metal cable conduit are not grounded, and there are few points connected to the grounding main line;

還存在橋架沒有與接地干線進行敷設的問題，使得用橋架系統進行接地干線回路構造時，不能夠對兩端間的接地電阻進行測試。橋架安裝不合格，會對橋架的使用造成一定的危害。橋架使用截面積較小的跨接地線，會使得接線不牢固，易受到機械設備的損害，容易在使用的過程中存在安全問題。

There is still a problem where the cable tray is not laid with the grounding main line, which makes it impossible to test the grounding resistance between the two ends when constructing the grounding main line circuit using the cable tray system. Unqualified installation of the bridge can cause certain harm to the use of the bridge. The use of a small cross-sectional area jumper wire in the bridge can make the wiring unstable, vulnerable to mechanical equipment damage, and prone to safety issues during use.

而且，利用電焊直接在橋架上直接進行接地線焊接，會對橋架的保護層造成損害，使橋架容易受到腐蝕，減少了橋架的使用年限。對于金屬的橋架以及金屬的電纜導管，若是沒有接地就會發生電的泄露，容易引起觸電問題，存在安全隱患。

Moreover, using electric welding to directly weld the grounding wire on the bridge can damage the protective layer of the bridge, making it susceptible to corrosion and reducing its service life. For metal cable trays and conduits, if not grounded, electrical leakage can occur, which can easily cause electric shock and pose a safety hazard.

橋架在開展安裝工程時就應該依據施工圖的要求、電纜的實際數量、橋架所處的環境和電氣管線，進行工程優化設計，進而繪制出橋架安裝路徑的平面圖、剖面圖和局部的空間圖，并且附上詳細的說明書。更多相關事項就來我們網站咨http://www.ymmgjx.net詢吧！

When carrying out the installation project of the bridge, the engineering optimization design should be based on the requirements of the construction drawings, the actual number of cables, the environment where the bridge is located, and the electrical pipelines. Then, a plan, profile, and local spatial map of the bridge installation path should be drawn, and detailed instructions should be attached. For more related matters, please come to our website for consultation http://www.ymmgjx.net Ask!