In previous articles, the editor of graphite grounding has already shared with everyone that due to the different terrains in most parts of China, the required lightning protection grounding materials are also different for different lightning protection grounding sites. Therefore, it is extremely important for us to choose suitable lightning protection grounding products. With the popularization and application of lightning protection technology, grounding modules and copper bare wire grounding systems have been widely used in petrochemical sites, and exothermic welding technology is also widely used in petrochemical sites. They can effectively solve problems such as high contact resistance of grounding connection points, difficulty in on-site construction, difficulty in reducing resistance, and short service life of grounding systems in the construction process of common grounding grids. The connection between the grounding module and the grounding grid is generally achieved through exothermic welding, which plays a significant role in reducing the contact resistance value at the welding point. If there are impurities on the surface of the welded object during the welding process, it must be cleaned thoroughly before operation, in order to maximize the conductivity and mechanical properties.
Advantages of using grounding modules in petrochemical sites:
1. The grounding module is small in size, light in weight, easy to construct, and reduces the labor intensity during the construction process.
2. The use of grounding modules has a longer service life. Grounding modules are made of non-metallic materials and are more corrosion-resistant than traditional metal grounding electrodes, with a service life of up to 50 years.
3. For areas such as petrochemicals, it is generally required that the grounding should be below 0.5 ohms. Using multiple grounding modules can achieve the effect of reducing resistance.
Burial method: The low resistance non-metallic graphite lightning protection grounding module can be vertically or horizontally buried, with a burial depth of not less than 0.6 meters, generally 0.8-1.0 meters.
The above is the sharing from the editor of graphite grounding, hoping to help those in need! If you want to learn more about related information, please continue to follow this website. New news will be pushed to everyone every day!