Cable tray is composed of support, bracket and installation accessories. It can be erected independently or laid on buildings or pipe racks. It is a building material that can protect cables from external factors and ensure the safety of our daily power consumption. They can be seen in underground parking lots, shopping malls, supermarkets and other places. Do you know what is cable tray expansion joint and what is its purpose? Today, the cable tray manufacturer will explain to you.
The cable tray expansion joint refers to the node with telescopic adjustment, which can adjust different lengths according to its installation requirements.
The expansion joint of the cable tray is mainly used for cable laying. When the cable touches the expansion joint and settlement joint of the building, it plays a buffer role in the special environment of vibration, so as to avoid the loss of cable displacement, distortion and breaking, and ensure the smooth flow of the cable.
The thermal expansion and cold contraction of metal are very serious. If expansion joints are not used, there will be problems, not only cable bridges, main heating pipes, PVC main sewer pipes, galvanized iron sheet heat pipes, etc. if they are affected by temperature, there will be expansion joints.