In our daily life, we can often see Shandong cable tray. Its appearance has brought us great convenience. However, after production, we need to pay attention to the installation and storage of some parts. So what exactly is it? Next, let our staff give you a brief introduction to their relevant knowledge points.
Precautions for installation of cable tray components:
1. Hanger installation: adopt threaded screw double rod hanger installation method. The support of horizontal bridge adopts galvanized threaded rod as suspender and galvanized angle steel as cross arm. The spacing between supports is 2m. The support shall be set at the corner of the bridge. The support shall be fixed under the floor with expansion bolts. The wire hanger shall be selected according to the width of the cable tray, as shown below: the vertical cable tray support shall be made of section steel, and the fastener shall be matched with the cable tray. The support shall be fixed on the wall or floor and fixed with expansion bolts. When the vertical cable tray passes through the floor, the shock absorption support shall be used where the seismic requirements need to be considered. When installing the plane bridge, lift it up to at least 50mm from the bottom to the ceiling.
2. Adjustment of supports and hangers: During the installation of bridge, the position error of supports and hangers of bridge shall be strictly controlled. The supports and hangers of cable tray shall be installed firmly, horizontally and vertically. The fixing method of supports and hangers shall be as required. The cross arms on the same layer of each support and hanger shall be on the same horizontal plane, and the height deviation shall not be greater than 5mm/m; The deviation of bridge supports and hangers from left to right along the bridge shall not be greater than 10mm/m.
3. Small clear distance between cable tray and various pipes: when cable tray is erected in parallel with general process pipes, the distance shall not be less than 400mm; When the cable tray is erected in parallel with the thermal pipeline, the distance between them shall not be less than 500mm when the thermal pipeline has thermal insulation layer, and not less than 1000mm when there is no thermal insulation layer. When the cable tray crosses the general process pipe, the clear distance shall not be less than 300mm. When the cable tray is installed under the pipe, it shall be protected by heat insulation board. The cable tray should not be installed in parallel above the thermal pipeline. When it is unavoidable to install it in parallel above the thermal pipeline, the spacing should not be less than 1000mm, and thermal insulation measures should be taken between them; When the cable tray crosses the thermal pipeline, the crossing distance shall not be less than 500mm when the thermal pipeline has thermal insulation layer, and 1000mm when there is no thermal insulation layer. The cable tray shall be protected by heat insulation board (such as asbestos board) at the intersection. The length of the heat insulation board shall not be less than the outer diameter of the thermal pipeline insulation layer plus 2000mm.
Storage of cable tray: When the cable tray cannot be installed temporarily, its storage place should be dry, covered, well ventilated, and protected from corrosive substances such as acid, alkali and salt. In the storage place, it must be classified and stacked, and shall not be knocked. The layers shall be separated with appropriate soft cushion to avoid high pressure, so as to prevent deformation and damage of anti-corrosion coating, which will affect the construction and bridge quality. In the corrosive environment, there should also be anti-corrosion measures. Once deformation and anti-corrosion coating damage are found, they should be handled in time before storage.
The above is a detailed introduction of Shandong cable tray for you. I hope it will be helpful to you. If you have any questions, please contact us. We will provide you with our attitude http://www.sdhangfeng.com