1、 Construction process

  (1): Construction process of graphite lightning protection grounding body: 1. Excavate grounding body trench: generally 60cm deep and 40cm wide; 2. Laying: Lay the graphite grounding body along the trench; 3. Connection: When connecting, the lap joint method is used, using dedicated graphite wire for lap joint, without the need for electrical welding; 4. Burial: The manufacturer of flexible graphite grounding strip reminds everyone to use fine wet soil to compact in layers.

（2） Construction process of round steel grounding body: 1. Excavation of grounding body trench: generally depth: 60cm, width: upper 60cm, lower 60cm; 2. Laying: Lay the round steel along the trench, and the angle at the bend must be greater than 90 °; 3. Connection: Welding is used, with a connection length greater than 80mm; 4. Anti corrosion: After welding is completed, the welding point is painted with silver powder paint; 5. Burial: Backfill with soil and compact.

（3） Construction process of copper-clad steel grounding rod: 1. Flexible graphite grounding strip manufacturer reminds everyone to excavate horizontal connection grooves: generally, the depth should be greater than 60cm and the width should be 40cm; 2. Installation: Use a punch drill. If it is a combination of multiple grounding rods, the depth needs to be increased, which may encounter rock layers or use drilling and implantation methods; 3. Connection method: Large grounding grids generally use thermal welding, and the grounding rod and grounding wire are welded with chemical flux; 4. Burial: Backfill soil to fill trenches or holes. （4） Construction process of grounding module: 1. Module inspection: whether the surface is flat and smooth, whether there are corners, defects, or cracks; 2. Excavation of foundation pit: Avoid placing corrosive soil on each side of the slope, and in cold areas, it should be located below the frozen soil layer; 3. Connection with grounding body: Welding is used. Outdoor welding is prohibited in rainy and snowy weather. If the surface of the welded part is damp or has ice or snow, it must be removed and dried; 4. Anti corrosion: Apply anti-corrosion paint to the welding area; 5. Burial: Fill with fine soil and compact it with mud. The thickness of the fill should not be less than 50mm, and water should be sprayed around to keep the module and soil moist.

2、 Soil factors

（1） Farmland. Flexible graphite grounding strip manufacturers have learned that the soil resistivity in general farmland is low, the soil is loose, and towers are mostly distributed in farmland. When using metal grounding bodies, electrical welding must be used. Equipment and machinery entering farmland can cause significant damage and increase land occupation costs. Due to the high use of pesticides and fertilizers in farmland, soil corrosiveness is extremely strong. After the metal grounding body is buried, the corrosion rate is extremely fast, especially at welding points, which can form galvanic corrosion and exacerbate metal corrosion. This can seriously shorten the life of the grounding electrode, increase the grounding resistance, and easily lead to accidents such as tripping. Graphite lightning protection grounding body has stable chemical properties and is not corroded by strong acids, alkalis, organic solvents, or electric couples at room temperature. It also causes minimal damage to farmland during construction, reduces land acquisition costs, and lowers engineering costs.

（2） Hills, mountainous hills, and mountainous areas generally have higher terrain and soil resistivity, and the amount of grounding bodies used is larger than that in plains and farmland. The use of metal grounding bodies may not achieve the effect of reducing resistance, and it is necessary to assist with vertical grounding bodies, resistance reduction modules, or the use of resistance reducing agents to achieve the effect of reducing resistance. When using vertical grounding bodies and drag reduction modules for construction, it is necessary to drill vertical holes or dig foundation pits, and welding is used for connection during the construction process, which requires mechanical equipment and electrical welding to complete. The transportation of equipment and materials is difficult and time-consuming. The use of graphite lightning protection grounding body, due to its light weight, easy transportation in mountainous areas, and no need for electrical welding and mechanical equipment during construction, solves the problems of difficult equipment to go up the mountain and inconvenient product carrying during the construction process, reduces construction costs, and shortens the construction period.

（3） The soil in special areas with acidic, alkaline, and saline soils can exhibit strong corrosiveness due to the action of corrosive ions, and the soil properties are characterized by acidic, alkaline, and saline soils. Metal grounding bodies will accelerate corrosion in such soils, leading to frequent renovation projects that require a lot of manpower and material resources. Therefore, in this type of soil, graphite lightning protection grounding bodies are more suitable due to their stable chemical properties, corrosion resistance, resistance to strong acids, alkalis, organic solvents, and galvanic corrosion, which can greatly reduce the cost of renovation and reconstruction projects. （4） Most of the interior of the city is paved with concrete, with green belts and residential areas along the way. The towers in the city are often located within the green belts, and the road surface is hard. When using metal grounding bodies, firstly, it is necessary to extensively damage the greenery and road surface, and restore them after completion, which increases the construction cost; Secondly, the construction requires the use of electrical welding equipment, which affects traffic and poses significant safety hazards to surrounding pedestrians and vehicles; Thirdly, frequent fertilization and watering within the green belt can cause severe corrosion to the metal grounding body. Graphite lightning protection grounding body, due to its cable like shape, can bend and radiate with the terrain. Therefore, grounding body trenches can be excavated in green belts without the need for electrical welding, reducing construction difficulty and safety hazards, causing minimal damage to the environment and green belts, and saving labor and time.

3、 Effect

（1） Metal grounding electrodes are not commonly used due to their high cost and high recycling value as they are made of pure copper and alloy materials. As a result, theft is inevitable during operation. Galvanized steel products are widely promoted and applied. Galvanized steel grounding electrode materials are mostly flat steel, angle steel, and round steel, among which the angle steel tower grounding electrode is mainly made of Φ 12 round steel, laid horizontally; The grounding electrode of the steel pipe pole is mainly made of 75 × 5 angle steel, which is vertically laid. The advantages of galvanized steel grounding electrodes are excellent conductivity, low material cost, and rich construction and operation experience. The disadvantages are inconvenient transportation and construction, lack of corrosion resistance, easy rusting, increased grounding resistance leading to lightning accidents, and high energy consumption in the production and galvanizing process of steel products. After investigation, the service life of galvanized steel grounding electrodes in non corrosive areas is about 7-10 years, while in corrosive areas, the service life rapidly decreases to 3-5 years.

（2） The flexible graphite grounding strip manufacturer has learned that the grounding module is a grounding product formed by tens of tons of mechanical pressure using low resistance materials. Its characteristics are high density, low resistance and anti-corrosion, and it is an extension of the resistance reducing agent. The product does not require on-site water mixing and pouring, and can completely replace the role of on-site pouring of resistance reducing agents. However, when the module cores are connected in parallel or to the ground wire, they must be welded. If there are welding points, corrosion will occur, and due to the moisture absorption of the module, the corrosion of the welding point metal will be accelerated. Once the welding point is corroded and broken, the module will be scrapped in the soil, losing its original resistance reducing effect, increasing the grounding resistance, causing lightning accidents, and the high price of the module, resulting in a lot of waste.

（3） Graphite lightning protection grounding body is a new type of grounding electrode, which is a new cable shaped grounding body made of high carbon graphite as raw material and belongs to a new type of non-metallic conductive material. Due to its molecular properties, graphite has excellent chemical stability and conductivity. Graphite lightning protection grounding body is chemically inert and is not corroded by strong acids, strong bases, organic solvents, or electric couples at room temperature. It has excellent conductivity and a longer service life. High carbon graphite has hygroscopic properties, which increase the moisture around the grounding body and enhance its resistance reduction effect. Due to the non corrosive nature of graphite, it will not cause pollution to the surrounding environment. The product is easy to process and shape, does not require passivation and anti-corrosion processes, is safe and reliable, and can be widely used in acidic and alkaline soils, as well as beaches, wetlands, tropical regions, and cold regions. The manufacturer of flexible graphite grounding strips has learned that this product has no recycling value, but it can effectively solve the problem of metal lightning protection grounding electrode bodies being easily stolen in China.