With the development of machinery, cable tray is widely used in engineering construction. If we don't know what problems should be paid attention to in the installation of cable tray, the cable tray will be seriously damaged by the environment after installation, and the whole line will be damaged. Therefore, we need to know what problems should be paid attention to in the installation of cable tray, so that we can use it better in engineering construction.
First of all, we need to understand the installation of cable tray, and we need to make a comprehensive analysis of the environmental conditions. Generally, we divide the environmental conditions into three kinds, namely normal environment, special environment, and corrosive environment. Different environments have different requirements for the installation of cable tray. Secondly, the installation of cable tray should pay attention to determine the direction of cable tray. The installation of cable tray should be based on the direction of most cables. In the outdoor environment, the direction can be along the process pipeline, while in the indoor environment, it can be along the beam, column, wall, etc.
The installation of cable tray should pay attention to the calculation of load. The data needed for calculation are the weight of the cable unit length on the section and the total load of the tray. The last and most important point is that the installation of cable tray needs to integrate the conditions of the first three points to determine the type and specification of the cable tray. The parameters to be considered in the selection include the length and spacing of columns, the level of the cable tray, the length of the bracket, etc.
When the construction environment needs fire protection requirements, the corresponding fire-proof cable tray can be selected, and the overall fire performance requirements of fire-proof cable tray need to meet the requirements of national light codes or standards. This is a comprehensive analysis of environmental conditions.
When selecting the load level of the cable tray, the average working load of the tray should not be greater than the rated average working load of the selected cable tray. When the actual span of cable tray support is not equal to 2m, the average working load shall meet the requirements.