With the continuous acceleration of urbanization, cable tray is more and more widely used in various fields, among which FRP cable tray is favored because of its excellent performance. However, the weather resistance of FRP cable tray has always been a problem in the industry, and some protective measures can be adopted in order to improve its weather resistance.
First of all, surface treatment technology can be used to protect the FRP cable tray. Surface treatment technologies include spraying, electroplating, hot dipping, etc., which can be treated with anti-corrosion, anti-rust, waterproof and other treatments on the surface of the bridge to improve its weather resistance. Among them, anti-corrosion coatings, anti-rust coatings, waterproof coatings, etc. can be used for spraying treatment, and appropriate coatings can be selected according to different use environments and use requirements. Plating and hot soak can be used to metallize the surface of the tray and improve its corrosion resistance.
Secondly, cladding technology can be used to protect the FRP cable tray. The cladding technology includes plastic cladding, rubber cladding, etc., which can play the role of waterproof, moisture-proof, dust-proof, etc., and can also improve the wear resistance and impact resistance of the bridge. Among them, the plastic coating can be made of polyethylene, polyvinyl chloride and other materials, and the rubber coating can be made of natural rubber, synthetic rubber and other materials.
In addition, sealing technology can be used to protect FRP cable trays. The sealing technology is mainly to seal the joints, screw holes and other parts of the bridge to prevent water and dust from entering the inside of the bridge. The sealing material can be silicone, polysulfide sealant and other materials, which have good weather resistance and adhesion properties.
In addition to the above three technologies, lightning protection technology can also be used to protect FRP cable trays. Lightning protection technology is mainly to prevent lightning damage to the bridge, lightning rods, lightning belts and other equipment can be installed on the bridge to introduce lightning into the ground. The selection and use of lightning protection equipment needs to be designed and configured according to the actual situation.
To sum up, in order to improve the weather resistance of FRP cable tray, measures such as surface treatment technology, cladding technology, sealing technology and lightning protection technology can be used for protection. These protective measures can improve the service life and safety of FRP cable tray, while also reducing the frequency and cost of repair and replacement. When selecting and using these protective measures, they need to be designed and configured according to the actual situation to ensure the safe and stable operation of FRP cable tray.
In addition, for large FRP cable trays, a segmented design can be adopted to divide the entire bridge into several sections, leaving a certain gap between each section to facilitate ventilation and heat dissipation. At the same time, drainage holes can be designed at the bottom of the bridge to drain the rainwater in time to prevent water from causing damage to the bridge. For FRP cable trays installed outdoors, it is necessary to consider the influence of factors such as wind resistance, earthquake resistance, and sun resistance, and take corresponding reinforcement and sun protection measures. For example, measures such as weather-resistant materials, strengthened structural design and shockproof devices are used at the feet and joints of the bridge to improve the stability and durability of the bridge.
In addition to the above measures, routine maintenance and upkeep need to be strengthened. Regularly inspect and maintain the FRP cable tray, and find and deal with existing problems and hidden dangers in a timely manner. For the parts that have been aged and damaged, they need to be repaired or replaced in time to ensure the normal operation and safety of the bridge. At the same time, it is also necessary to pay attention to the reasonable allocation of the number and layout of cables to avoid damage to the bridge caused by overload and overload operation.
In short, improving the weather resistance of FRP cable tray is one of the important measures to ensure its safe and stable operation. Through the comprehensive application of a variety of protective measures and technical means, the weather resistance and service life of FRP cable tray can be effectively improved, and more reliable power support and guarantee can be provided for the construction and development of the city.