Installation of cable tray (2) and Engineering quality control standard

5、Installation of Bend cable tray accessories / cable accessories

Cable tray for cross, turn, Tee connection should be using Horizontal Cross, Horizontal T-Cross , 90° Horizontal Elbow, Vertical Outside Riser, Vertical Outside Riser and other flexible cable tray accessories for transition connection.The specific connection method is the same as the installation method of the straight-line section bridge.Several elbow accessories are shown in Figure 5.2.4-4

 

cable accessories

Cable Tray Cover

When installing the pvc cable tray cover, the assembly opening of the cover plate is aligned with the assembly opening of the cable tray groove installed and fixed to the bracket, and then hammer with appropriate strength to make the hook of the cover plate and the groove buckle in place. Pay attention not to apply PVC glue.

Engineering quality control standard

(1) Compensation devices shall be protected when cable tray span building expansion joints or settlement joints;

(2) The cable tray shall be straight and neat, the horizontal or vertical allowable deviation of 2 ‰ of its length, and the total length of 20mm, the cover plate shall be easy to open;

(3) Vertical mounted cable tray,The load-bearing bracket shall be provided at every 3-5 floor;

(4) When laying the cable tray, the bottom plate interface and the cover plate interface shall be staggered, and the staggered distance shall not be less than 20mm.

(5) The ground height of the cable tray is generally not less than 2.5m When the cable tray is laid horizontally, and the protective cable tray cover plate shall be required when vertical laying and below 1.8m from the ground.

(6) When laying the cable tray on the horizontal level, keep the minimum distance from other pipes.See Table 7.1.7 for more details.

cable trough

(7) When installing the cable trunking or cable tray, pay attention to keep the wall clean.  

(8) Do not install other pipe supports or tie-hanging items on the installed bracket or strut channel

(9)The cable tray should be wrapped with plastic film before painting, to avoid contamination of the cable tray. After the completion of the civil decoration project, the sanitary cleaning material film wrapped in the pipeline will be cleaned up, and the contaminated pipeline will be cleaned with water.

(10) After the completion of the cable tray wiring, the cable tray cover plate should be complete and plain, shall not be missed, and prevent damage.


Post time: Aug-15-2022
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