Graphite grounding wire is a graphite wire directly connected to the earth, also known as a safety return line. In case of danger, it transfers high voltage directly to the earth and is considered a lifeline. So, how to connect the graphite ground wire? Below, the editor will introduce the precautions for graphite grounding wire.

(1) Before starting work, it is necessary to check the grounding wire. Whether the soft copper wire is broken, whether the screw connection is loose, and whether the elasticity of the wire hook is normal. If it does not meet the requirements, it should be replaced or repaired in a timely manner before use.

(2) Before hanging the grounding wire, it is necessary to check the electricity beforehand. Hanging the grounding wire without checking the electricity is a common habitual violation in the grassroots. The purpose of checking the electricity is to confirm whether the power has been cut off on site, which can eliminate human errors such as wrong power outages and non power outages, and prevent hanging the grounding wire with electricity.

(3) Hang grounding wires on both ends of the work section, or on branch lines that may have incoming power (including induction power and backup power). In practical work, the possibility of users reversing power and inducing electricity is often overlooked, and there are many examples of this harm.

(4) When driving grounding piles, it is necessary to choose a surface layer with strong adhesion, high organic matter, and moisture, and avoid overly loose, hard, weathered, backfilled soil, and dry surface layers. The purpose is to reduce the soil resistance and contact resistance of the grounding circuit, quickly clear the large current caused by the situation, and ensure the quality of grounding.

(5) It is not allowed to hang graphite grounding wire on the wire or metal tube of the line. The grounding resistance is unstable and often too large, which does not meet technical requirements, and may also cause the metal tube to become electrified, posing a hazard to others.

(6) Take care of the graphite grounding wire. Grounding wires are not allowed to be twisted during use. When not in use, the soft copper wire should be coiled properly. After the grounding wire is removed, it is not allowed to be dropped from the air or thrown randomly on the ground. It should be transmitted with ropes. The cleaning of the grounding wire is very important to prevent mud, debris, and other objects from entering the pores of the grounding device, which can affect the normal use of the parts.

(7) New staff must undergo training and learning on the use of grounding wires, and pass the assessment before they can independently engage in the operation or use of graphite grounding wires for work.

(8) Select grounding wires of corresponding specifications according to different voltage levels. This is also where habitual violations are prone to occur in the precautions for grounding wires. The diameter of the grounding wire should match the voltage level of the electrical equipment in order to pass through large currents caused by circumstances.

(9) Do not clamp the graphite grounding wire onto metal frames or plates that have been painted on the surface. This is a common violation when hanging grounding wires in electrical equipment sites. Although the metal is connected to the grounding system, the paint surface is an insulator, and the withstand voltage of the paint thickness can reach 10 kV/mm, which can prevent the grounding circuit from being connected and lose its protective function.

(10) It is strictly prohibited to use metal wires instead of graphite grounding wires. The metal wire of this device does not have the ability to pass high currents due to personal reasons, and the contact is not firm. Fault currents can quickly melt the metal wire, disconnect the grounding circuit, and endanger the safety of workers.

(11) It is not allowed to hang fewer grounding wires or change the location of grounding wires without authorization during on-site work. The number of grounding wires and hanging points are carefully considered before work. Fewer hanging or changing grounding points will reduce the protective effect on site and put people in a dangerous working state.

(12) Grounding wire is double-edged, it has a safety function, and improper use can also cause destructive effects. Therefore, it is necessary to remove the grounding wire in a timely manner after the work is completed. Closing the switch with a grounding wire can damage electrical equipment and disrupt the stability of the power grid, leading to serious and malicious electrical incidents.

(13) Graphite grounding wires should be stored indoors in a dry place and require dedicated personnel to keep and maintain them at designated locations. They should be numbered and recorded, and regularly inspected and recorded. Attention should be paid to checking the quality of the grounding wire, observing the appearance for corrosion, wear, excessive oxidation, aging, and other phenomena to avoid affecting the effectiveness of the grounding wire.