How to avoid earthing faults caused by loose or aged earthing fixing clamps?

In electrical systems, earthing fixing clamps are a key component to ensure the safe operation of equipment and systems. The main function of the grounding system is to provide a reliable grounding channel for electrical equipment to prevent fire or electric shock accidents caused by electrical faults. As an important connecting element in the grounding system, the grounding clamp not only physically fixes the grounding wire, but also ensures that the resistance of the connection is as low as possible.
Choosing the right material for the grounding clamp is crucial to prevent loosening or aging. Common materials for earthing fixing clamps usually include copper, stainless steel, aluminum alloy, etc. These materials need to have good conductivity, corrosion resistance and sufficient mechanical strength. In some harsh environments, earthing fixing clamps may be exposed to moisture, salt spray or high temperature. Therefore, the corrosion resistance and oxidation resistance of the material are particularly important. For example, using galvanized or coated earthing fixing clamps can effectively prevent corrosion caused by environmental factors and reduce the occurrence of loosening and aging.
During the installation of the grounding clamp, it is very important to ensure the correct tightening force. Too loose or too tight installation will have a negative impact on the long-term use of the clamp. Too loose may cause poor contact between the grounding wire and the clamp, increase contact resistance, and thus affect the grounding effect; while too tight may cause damage to the clamp or grounding wire, leading to structural failure. Therefore, during the installation process, it is necessary to strictly follow the manufacturer's recommendations for tightening to ensure that the grounding clamp remains stable during long-term use. After installation, the tightening of the grounding clamp should also be checked regularly, and timely adjustments should be made if looseness or inappropriate tightening force is found.
Regular inspection and maintenance are essential to avoid loosening or aging of the grounding clamp. Over time, the material of the grounding clamp will age due to various factors (such as temperature changes, vibration or chemical corrosion), resulting in a decrease in its performance. In order to extend the service life of the grounding clamp, it is necessary to regularly inspect the grounding system, especially the corrosion, wear and tightening of the grounding clamp. If the grounding clamp is found to be rusty, loose or obviously worn, it should be replaced or repaired in time to avoid grounding failures caused by aging accessories.
During installation and maintenance, good sealing and protective measures are also very important. The use environment of the grounding clamp is often complex and may be exposed to harmful substances such as water vapor, dust, acidic gas, etc. In order to protect the grounding clamp from the external environment, a sealing treatment can be adopted to prevent moisture or other corrosive substances from invading the connection part of the grounding clamp. In addition, the external protective cover or protective cover of the grounding system can also help prevent dust, dirt or external forces from affecting the grounding clamp, thereby increasing its service life.