During the operation of the power system, in order to ensure the safety of the circuit, it is necessary to set the grounding. This can ensure that after the circuit receives internal overvoltage or lightning overvoltage, the current can find a safe distribution path through the ground to the ground. So how to ensure the safety of the electrical system grounding? Of course, this depends on the ground resistance tester.

Poor grounding will directly block the circuit connection. In addition, if the circuit is poorly grounded, it is dangerous and may cause other system failures. When measuring the grounding system with loop, the ground resistance tester does not need to disconnect the ground lead and auxiliary electrode. It is safe, fast and easy to use. This is an important tool for circuit troubleshooting, helping to maintain the normal operation of the circuit and maintain the safety of personnel.

Therefore, power workers need to test all the grounding of the power system every year to ensure the safety of the entire circuit, which is also part of the daily maintenance of the circuit. Through this regular inspection, if it is found that the resistance of the circuit has increased by more than 20%, the staff should check the cause in time, eliminate the fault, and replace the ground rod or check the grounding system of the entire circuit to check whether there is a fault. Check for problems, reduce resistance and maintain circuit safety.

It should be noted that when using a grounding resistance tester for grounding operations, the operator should always wear insulated gloves, goggles and other power protection devices. If the electrode is grounded before it is grounded, it must be tested before the electrode is grounded. Now, the new instrument can be used to make direct and accurate measurements while the electrodes are still connected.