Method of removing the grounding wire - Solutions - Huaqiang Electronic Network

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In the electrical production work, the grounding wire is the most direct protection measure to protect workers from electric shock.

The basic fact that the grounding wire has become the fuse of many accidents shows that the grounding wire has duality, which is both a safety line and a mutilation line. The correct use of the grounding wire is related to the overall safety of the grid operation. The management of the grounding wire has historically been sharply reflected in the problem of preventing the grounding line from charging and the misfeeding of the grounding wire.

For the start of power outages and the prevention of electrified installation of grounding wires, there are clear, specific and detailed safety technical measures in the Regulations, which have received widespread attention and accidents are quite rare. In the completion of the re-powering, the accident of sending a power transmission with a grounding wire is still not uncommon.

If the power outage is a whole, then the power outage is only half of it, and the completion of the power is the inseparable part. Especially for the duty operator, the completion of the re-operation is more challenging. Only the equipment that will be withdrawn, safely put into the system operation, and start and end, is the successful completion of the work.

The power plant and substation duty unit can become an accident site with a grounding wire that is mistakenly delivered, and is a key part to prevent such accidents. Mastering the operating status of the grounding wire is the most effective way to prevent accidents. Here, we recommend an effective method. Usually, the grounding wire of a factory, station duty unit inventory is always a relatively fixed amount, and the grounding wire used in the system is a relatively variable amount. Therefore, mastering these two quantities and their relationship is the key to mastering the state of the grounding line. During the re-operation operation, during the process of removing the grounding wire, it is not necessary to pay attention to checking the abstract grounding wires in the recording or on the board. Instead, the material body of the grounding wire must be inspected to check the number and position of the grounding wire body. Specifically, it is to check how many sets of grounding wires have been used, and how many groups have not been used. The sum of the two matches the total number of grounding wires. If the total number matches, then check and implement where the used grounding wires are installed separately. What is the relationship with the current re-operation operation? If the total number of ground lines does not match, it can be inferred that there is still a grounding line missing; if the grounding lines do not match, it can be inferred that there is an error in the newly removed grounding line. Missing or mis-disposing the grounding line jeopardizes the overall situation of safety, so be sure to check out the water. Completion of the power, check the number and location of the check ground wire is accurate, can be most effective against the ground line accident. The harsher the operating environment, the more likely it is to prevent accidents. The power outage starts, and in the end, it is the grounding line; when the power is restored, it is still a grounding line. Grasping the grounding wire is to grasp the safety. "Checking" is a magic weapon for the operating personnel to win. All remedies are started from the "checking" in time.

Everything is like a line between the clouds. The grounding wire closely links people, equipment and power supply security. Mis-disassembly of a group of ground lines, implicated in the survival of a group of people, the loss of a set of ground lines, affecting the power supply security of thousands of households; wrongly split a set of ground lines, related to the security and stability of the power grid. When the power is restored, the grounding line should be removed. It is necessary to take a safe approach in accordance with the prescribed procedures and make sufficient efforts to ensure the correctness of the on-site operation.