There are always some common problems in the installation of cable tray. Now Shandong cable tray company will summarize some common quality problems in the installation of cable tray, hoping to attract the attention of the majority of bridge tray installation companies, and help you all!

1.鍍鋅橋架使用連接板作跨接地線，連接螺栓無防松措施，橋架過長，只有一端與PE線相連接。

1. Galvanized bridge frame uses connecting plate as cross-grounding wire, connecting bolt without loosening measures, bridge frame is too long, only one end is connected with PE line.

2.橋架在變向、變徑的接頭部位，不使用專用件，使接頭處理不規范。

2. The bridge girder is at the joint of variable direction and diameter, and does not use special parts, so that the joint treatment is not standardized.

3.橋架接頭處不平齊，通過變形縫，沒按規定和規范要求采取措施。

3. The joint of the bridge is uneven, and measures have not been taken according to the regulations and specifications through the deformation joints.

4.吊、支架安裝不牢；間距過大，造成電纜橋架撓度過大。

4. Installation of suspension and bracket is not strong; too large spacing results in too large deflection of cable bridge.

5.橋架的蓋板不全，或扭曲變形。

5. The cover of the bridge is incomplete or distorted.

6.橋架敷設過長，未按規定預留伸縮縫和安裝伸縮節。

6. Bridge erection is too long to reserve expansion joints and install expansion joints as required.

7.橋架敷設在蒸汽熱力管道的上方，而且無保護措施。

7. Bridge erection is laid on the top of steam thermal pipeline without protective measures.

8.橋架與其它管道距離，小于標準值，且無技術防護措施。

8. The safety distance between the bridge and other pipelines is less than the standard value, and there is no technical protection measures.

9.橋架在穿越防火墻及樓板時，未作防火封堵處理。

9. When the bridge traverses the firewall and floor, it is not blocked by fire.

10.橋架污染嚴重，甚出現銹腐現象。

10. Bridge frames are seriously polluted and even rusted.

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