Railway bridge expansion joint cable protection device

This product is used in communication and signal cable slot expansion joints of high-speed railway bridge to play a role in protecting the cable.

The on-site investigation shows that at present the bridge’s expansion joints are provided with simple protection methods by using water stop tapes, cement jointing, and plywood. The above methods make the signal and communication cables at the joints exposed in the air, making cables easy to age with sunlight and rain.

At the same time, due to the rough construction, the seamless jointing of the filling objects at the joints and the prefabricated cable troughs on the two sides are poorly jointed, resulting in a gap between the bridge joints and the prefabricated cable troughs. The vibrations produced when high-speed railway trains pass by will make the cable sheath have frequent friction, which will wear out the cable sheath and shorten the service life of the cable. It is not conducive to the safe maintenance of the communication and signal operation.