FRP bridges are widely used in power cables, control cables and lighting wiring. At present, because of the wide range of application of FRP bridges, there are countless manufacturers producing FRP bridges, and the quality is also uneven. Then we need to formulate a unified standard, which is a standard that everyone agrees with. For the convenience of production and use, the country has formulated a unified standard, then the editor will introduce the national standard of FRP bridge.
National standards for FRP bridges According to the different national standards, FRP bridges will also have different product types and materials. For example, the material of glass fiber reinforced plastic cable tray needs to meet the requirements of GB / T15568. The surface of the product is smooth and smooth, without scratches, cracks, punched sections and connection hole sections must be free of burrs, and has a certain degree of waterproofness and corrosion resistance. Not only the points mentioned above, but at the same time, according to the needs of our customers, FRP bridges can also be laid with high-specific grounding wires along the entire length of the bridge. The cross-sectional area can be determined according to the relevant regulations in it and provided by the manufacturers and users -Communicate and communicate with one another, so as to determine again. At present, the test projects of FRP bridges must also follow certain national standards. When carrying out the water resistance test, the test shall be performed in accordance with the provisions of GB / T2575, and the test result of the bending strength of 120 MPa is obtained. When the chemical resistance is tested, the test is performed according to the provisions of GB / T3857, and the test results are the same as the above results. In the power frequency electrical strength test, it shall be conducted in accordance with the provisions of GB / T1408, and the test result is 16KV.
The surface resistivity of FRP bridges should be tested in accordance with GB / T1410. The test result is 21030.cm. In order to ensure product quality and achieve customer satisfaction, the company has specifically formulated product standards for composite epoxy composite cable trays. "Cable Bridge" follows the QB / T1453-2003 People's Republic of China Light Industry Industry Standard implementation, and "Energy-saving and Corrosion-resistant" "Steel cable tray" follows the national standard GB / T23639-2009 of the People's Republic of China, and the packaging storage and transportation mark is GB8191. As consumers, we understand that glass fiber reinforced plastic bridges agree with national standards, which can facilitate our use in daily life, and will not cause a series of troubles if we cannot find a suitable standard. For producers, knowing the production standards of FRP bridges or uniform national standards can regulate the production standards of this industry, which is not only convenient for users but also convenient for producers. Well, Xiaobian ’s explanation today is over. I hope it will be helpful to friends who want to know this knowledge.