• How to renew the damaged Jiangmen Bridge

    Jiangmen bridge plays a very important role in the power industry. The bridge is widely used. The application environment of bridge products in bridges is sometimes bad. The bridge will inevitably be damaged in operation. Usually damaged bridges need to be replaced. Pay attention to safety when replacing bridges. The material of cable bridge is mostly steel. If exposed to various environments for a long time, it will inevitably suffer from corrosion, rust, high temperature burning damage and external force damage, which will affect its maintenance function and service life. The cable tray with severe corrosion damage should be replaced to avoid cracking and collapse, which may lead to severe accidents. First of all, before replacing the Jiangmen bridge, it is necessary to

    2020-07-10

  • What are the maintenance steps of Jiangmen bridge and pipeline

    With the continuous development of social economy, the use of bridge in Guizhou is also increasingly extensive. As for the bridge, do the usual maintenance and protection work, which can well extend its life. Let's take a look at what protection operations there are. 1. Rust treatment: generally, two layers of chlorosulfonated primer are used for two-part derusting of cable tray. The quality of surface derusting directly affects the life of anti-corrosion engineering. Generally, the field derusting is carried out by grinder or manual derusting. After the surface treatment, the primer shall be applied within 4 hours. If the treatment is not proper and new rust is found, it must be treated again. 2. Coating treatment

    2020-07-10

  • What are the installation requirements for Jiangmen bridge conduit

    1. In the engineering design, the bridge should be comprehensively considered according to the economic rationality, technical feasibility, operation safety and other elements, and then the optimal scheme should be confirmed, which also needs to meet the requirements of installation, maintenance and cable placement. 2. When the bridge, trunking and its supports and hangers are used in corrosive environment. Anti corrosion treatment shall be adopted, which shall meet the requirements of engineering environment and durability. Suitable for corrosion resistance requirements or clean local, aluminum alloy cable tray should be selected. 3. In the area with fire protection requirements, plates and nets with fire-resistant or flame-retardant functions shall be added to the cable ladder and tray to form a closed or semi enclosed structure

    2020-07-10

  • How to transport Jiangmen bridge and pipeline

    Jiangmen bridge is usually customized by the manufacturer. As it is a kind of unconventional product, generally only the manufacturers in the provincial capital will be transported remotely. In the process of transportation, due to the road conditions and the quality problems of the bridge itself, the products will have a certain degree of wear and damage. How to transport the cable bridge? 1. We should ensure the quality of the cable bridge. The quality can ensure the bearing capacity of the bridge, and there will be no deformation in the process of transportation and bearing, so as to ensure the arrival of the site or the factory. 2. We should ensure the equipment of cable bridge. Outstanding equipment can greatly reduce the friction of products in the process of transportation, greatly improve

    2020-07-10

  • Problems in installation of Jiangmen bridge and conduit

    Jiangmen bridge line pipe summed up some problems according to the daily equipment of construction brothers. Assuming that the following situations can be avoided, most errors in equipment process can be avoided. Welcome to our lively comments! 1. The whole length of metal cable tray and its bracket is not solidly grounded (2 places); 2. The elastic joint is not set according to the standard requirements; 3. The cable tray and bracket are not fixed, and the bridge bracket is not grounded jumper; 4. There is no fireproof blocking for crossing the fire compartment; 5. There is no electrochemical corrosion protection between the aluminum alloy bridge and the steel support Insulation treatment; 6, bridge elbow, tee, etc. are not used with the bridge

    2020-07-10

  • What are the purchasing methods of Jiangmen bridge conduit

    In the project, the cable tray is generally called "bridge", but the specific structural characteristics are not pointed out. The price of cable tray with different types and different production data varies greatly, and the disorder of structure type will bring problems in heat dissipation and mechanical protection at the operation site. Therefore, in the planning stage, the planning personnel should reasonably select the structural features of the cable tray according to the engineering environmental characteristics and skill requirements, and clearly express them in the type label and data sheet of the plan. 1. The selection of raw materials for Jiangmen bridge is generally divided into iron, glass fiber reinforced plastic, aluminum alloy and stainless steel. According to the different construction requirements, choose No

    2020-07-10

  • External causes of aging of Jiangmen Bridge

    The cable tray is mainly insulated by the outer layer of the cable. If the protection is not good, the external gas will be corroded for a long time, the insulation function will gradually decline, and the aging, embrittlement or falling off will not play an insulating role. The insulation on the outside of the cable is made of plastic and rubber. Sometimes aging is found. What is the reason? Then, this small series of problems of Jiangmen bridge are analyzed. 1. The insulation is affected by tide. In general, this kind of situation is more common, which usually occurs in directly buried or pipe fabric cable joints. For example, disqualification of cable joints and joints in wet weather will cause the joints to enter or mix with water vapor, and

    2020-07-10

  • Matters needing attention in welding of Jiangmen Bridge

    The construction site is the primary consideration of bridge equipment welding. Because the main girder has a certain temperature difference, camber, warpage and horizontal bending will change. Therefore, when welding in the workshop, it is better to choose the equipment Jiangmen bridge, so as not to form too big temperature difference. Bridge inspection should be carried out in the morning or at night. The orientation of the pad also affects the equipment and welding of the bridge. Because the camber of the main beam is affected by the self weight elements, the bearing of the main beam cushion is good, and the equipment is at or near the end of the main beam. In addition, bridges with smaller components should be installed on the finished beams. In order to make the equipment work normally, the equipment should be placed on the rear plate of the bridge

    2020-07-10

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