The editor of graphite grounding introduces the main uses and construction methods of graphite grounding modules. Come and take a look:

The resistance of the graphite grounding module and the good resistance reduction effect of the grounding body. It is mainly used for building grounding, lightning protection grounding, anti-static grounding, AC work grounding, safety protection grounding, and other grounding purposes. We mainly consider the type of grounding product based on its service life, anti-corrosion ability, engineering cost, resistance reduction requirements, environmental requirements, and other aspects. Traditionally, we use metal materials (such as galvanized flat steel as the connecting material for horizontal and ground grids, vertical grounding modules or galvanized angle steel as the vertical grounding electrode, and using resistance reducing agents or low resistivity soil to change soil resistivity). For the same project, we can choose different methods to achieve the purpose of resistance reduction. The grounding module is a material based grounding body, which is composed of low resistance, chemically stable non-metallic materials and anti-corrosion metal electrodes. The low resistance non-metallic material is formed by die-casting method to form a tight and stable contact with the anti-corrosion metal electrode, expanding the conductive area of the metal electrode. Due to the free electron diffusion of non-metallic materials, a stable low resistance area is formed around the module, achieving a very good resistance reduction effect. This product has the characteristics of corrosion resistance, non-toxic and environmentally friendly, long service life, simple engineering installation, and significant effect.

Construction method of grounding module

1. Graphite grounding electrodes should be soaked in water for 1-2 hours before use.

2. Burial method: vertical burial and horizontal burial are adopted; The burial depth shall not be less than 0.8 meters.

3. The distance between modules shall not be less than 3 meters.

4. When the module cores are connected in parallel or to the ground wire, they must be welded with a welding length of twice the width of the connecting wire.

5. The welding slag should be removed at the welding site and coated with anti-corrosion conductive paint or asphalt paint.

6. When backfilling fine soil, it is necessary to sprinkle water appropriately and compact it layer by layer. After the module has fully absorbed moisture (24 hours), measure the grounding resistance.

The quality of the grounding system largely determines the quality of construction, so it is necessary to master the correct construction methods and process requirements for the grounding module. The construction of grounding engineering should usually follow the following basic principles:

(1) Within the effective length range, it is recommended to bury grounding bodies in areas with low soil resistivity as much as possible.

(2) The burial location of the grounding body should be away from the heat source.

(3) The burial location of the grounding body should avoid places with strong corrosive substances as much as possible.

(4) The low point of the grounding body should be buried as far away as possible from places where people often move, otherwise measures should be taken to prevent step voltage hazards.

(5) According to the actual needs of the project, the FL-01 type drag reduction module is generally used for horizontal burial, while the FL-02 type drag reduction module is generally used for vertical burial or burial in any other form suitable for terrain conditions.

(6) The burial depth of the grounding body should be less than 0.8 meters, and if conditions permit, it should be suitable for deep burial.

(7) The burial spacing of vertical grounding bodies should be more than 5 meters, and the burial spacing of horizontal grounding bodies should be 6-10 meters.

(8) The same corrosion-resistant metal material should be used to ensure the electrical connection of the buried part of the grounding system is firm and reliable through welding. Overlap welding should be used, and the overlap length should not be less than twice the width of the flat steel or six times the diameter of the round steel, with multi sided welding. It is recommended that the length of the weld seam be no less than 800mm. There should be no virtual welding or missed welding.

(9) Careful removal of welding slag is required, and asphalt or other anti-corrosion materials should be applied to the welding area for proper anti-corrosion treatment.

(10) When backfilling with original soil or fine clay, at least 30-50cm of fine soil should be ensured around the grounding body, and appropriate watering should be carried out to fully compact it.

(11) Detailed and truthful construction discipline should be implemented.

The above is the sharing of the editor of graphite grounding, hoping to be helpful to everyone! If you want to learn more about related information, please continue to follow this website. New news will be pushed to everyone every day!