Matters needing attention in the use of FRP cable protection bridge

2022-10-13 10:12:14 admin 2

The cable bridge should have measures to prevent the cable from being scratched, such as various bends, tees, crosses, etc., which should be arc-shaped. When the cable is led down, the lead-down device should be adopted. When the cable bridge enters the room from the outside (such as substation), it should be sealed, and fireproof plugging and sand sealing can be adopted. At the same time, the FRP bridge should be inclined outdoors, generally with a slope of 1% to prevent the rain from flowing backwards. Cable bridge has high mechanical strength, which has both the rigidity of metal bridge and the toughness of FRP bridge. It has good corrosion resistance, strong aging resistance, beautiful appearance, convenient installation and long service life. Epoxy resin and epoxy resin composite cable tray are suitable for use in strong corrosive environment, long span and heavy load conditions.

The FRP bridge adopts the advanced FRP pultrusion process at home and abroad, which is mechanized and produced continuously. Therefore, it not only has the advantages of the bridge produced by domestic counterparts, but also has stable product size, which can be arbitrarily selected, and its length can exceed 8m, with higher strength, rigidity and corrosion resistance. Nantong Ruichi New Materials Co., Ltd. is a scientific and technological innovation enterprise specialized in scientific research, development, design, production and installation of FRP, and cable tray and FRP cable tray are one of its products.

Since the founding of the People's Republic of China, so many years have passed. China has always adhered to the two major policies of reform, opening up and scientific and technological innovation, and achieved remarkable results in recent years. Even in the 21st century, it will persist until the end.

The installation of bridge is mainly divided into several types: installation along the roof, horizontal and vertical installation along the wall, installation along the shaft, installation along the ground, installation of FRP bridge along the cable trench and pipe support, etc. The supporting (hanging) frame used for installation can be finished or homemade. The fixing methods of supports (hangers) mainly include welding on embedded iron pieces, fixing with expansion bolts, etc. Where there are cables, there are bridges. Bridge is widely used in all walks of life, and most of them are used in data centers, offices, Internet service providers, hospitals, school/university airports and factories, etc., especially in data centers and IT computer rooms. The FRP bridge market reached 100 billion yuan in 2010, and will increase by about 20% every year after 2011. In 2010, the state issued the latest cable tray standard, which stipulated the definition, model code, requirements, test methods, inspection rules, signs, transportation and storage of cable trays for electric control distribution. This standard is applicable to cable trays for indoor and outdoor, high and low voltage power transmission and distribution projects of industrial and civil buildings. The promulgation of this standard further standardizes the FRP bridge industry. Good standards are also a new embodiment of standardized products.