Is the connection method of pure copper grounding rod threaded, welded or other fixing methods?

Pure copper grounding rods play a vital role in power, communication and lightning protection systems. Their main function is to quickly conduct current into the ground to ensure the safety of equipment and personnel. In the actual installation process, the connection method of the grounding rod directly affects the grounding effect and long-term stability.
Among the connection methods of grounding rods, threaded connection is a more common method. This method usually connects the grounding rod with other grounding materials or extension rods through a threaded structure to ensure firmness and reliability. The advantage of threaded connection is that it is easy to disassemble and is suitable for scenarios where the length needs to be flexibly adjusted or parts need to be replaced. In addition, after precision machining, the threaded interface can maintain good conductivity and reduce contact resistance, thereby ensuring the effectiveness of the grounding system. However, during long-term use, the threaded part may oxidize or rust due to environmental factors. Therefore, protective measures need to be taken during installation, such as applying anti-corrosion materials or using special coatings to improve the durability of the connection part.
Another common connection method is welding. Welding connection can provide a more stable and low-resistance grounding effect, which is suitable for occasions with high conductivity requirements. The welding method usually uses gas welding or exothermic welding process to integrate the grounding rod with other grounding materials, thereby reducing the resistance at the joint and improving the conductivity. The advantage of this method is that the structure is strong and not easy to loosen, and it is suitable for long-term burial or difficult maintenance environments. However, the construction requirements of welding connection are high, requiring professional equipment and technicians to operate. At the same time, once the welding is completed, it is difficult to adjust or disassemble it later. Therefore, when choosing the welding method, it is necessary to plan the layout of the grounding system in advance to avoid the construction difficulty caused by position adjustment.
In addition to threading and welding, there are other fixing methods, such as clamping connection. This method usually uses a special grounding clamp to fix the connection between the grounding rod and other conductors by strong compression. The advantage of clamping connection is that it is easy to install and can be completed without complex tools. It is suitable for temporary grounding or scenes that require flexible adjustment. In addition, some high-strength clamps are made of anti-corrosion materials, which can effectively reduce the problem of poor contact caused by environmental factors. However, since the tightness of the clamping connection may be affected by external forces, there may be a risk of loosening in long-term use. Therefore, it is necessary to check regularly during installation and ensure that the clamping force meets the requirements.
Different connection methods have their own characteristics. The specific method to be selected needs to be comprehensively considered based on the site environment, usage requirements and construction conditions. If you are looking for convenience and adjustability, threaded connection is a good choice. If you want long-term stability and reduced contact resistance, welding is more reliable. For situations where flexible disassembly or temporary grounding is required, clamping connection can provide certain convenience. Regardless of the method used, it is necessary to ensure that the grounding rod is firmly connected and has good conductivity, and take appropriate protective measures during the installation process to extend the service life and ensure the safe and stable operation of the grounding system.