Square zero-ohm composite grounding electrode
Title: Square Zero-Ohm Composite Grounding Electrode, Substation Grounding, Graphite Composite Grounding Material
Keywords: Square composite grounding electrode, lightning protection grounding module, zero-ohm horizontal grounding electrode, low resistance grounding module, zero-ohm grounding electrode, zero-ohm composite grounding material, customized zero-ohm grounding electrode, zero-ohm resistance-reducing grounding electrode, zero-ohm anti-corrosion grounding electrode, deep well grounding, substation grounding, wind turbine grounding, power plant lightning protection grounding, substation lightning protection grounding, electrified railway lightning protection grounding, telecommunications base station grounding, mobile communication base station grounding, microwave relay station grounding, ground satellite receiving station grounding, radar station lightning protection grounding, lightning protection grounding for valuable and precision instruments, lightning protection grounding for computer room equipment, lightning protection grounding for postal and telecommunications program-controlled equipment, lightning protection grounding for radio and television equipment, lightning protection grounding for electronic medical equipment, lightning protection grounding for high-rise buildings, lightning protection grounding for scenic spots and ancient buildings, lightning protection grounding for tall memorial towers, lightning protection grounding for oil pipelines, lightning protection grounding for oil and gas tanks, lightning protection grounding for flammable and explosive material warehouses
Temperature Range: -40℃~80℃
Resistivity: ≤8.5μΩ·m
Bulk Density: ≥1.68g/cn3
Compressive Strength: ≥30Mpa
Flexural Strength: ≥13.5Mpa
Buried Depth: >0.6m
Module Spacing: 5m
Product Certification: ISO9001:2000
Protection Rating: IP64
Explosion-proof Function: None
Application: Lightning protection grounding
Usage Environment: Any environment
Product Description:
Composite grounding electrode. Its graphite material has excellent soil affinity, is non-corrosive, non-degradable, non-polluting, and non-toxic. It exhibits good resistance stability in humid, water-immersed, or deep frozen soil environments, has a long service life, and is suitable for grounding projects in multi-point construction, complex terrain, and water-scarce areas. In areas with high soil resistivity, it can effectively reduce the grounding resistance of the grounding grid. It is also convenient to transport, easy to install, and maintenance-free.
The module uses non-metallic conductive materials as the main body, with low conductivity and stable performance. Buried in soil, this product is non-degradable, contains no corrosive ions, has a long service life, and is safe and environmentally friendly. Its unique manufacturing process, high compressive strength, and patented specifications make it a domestically leading product in terms of overall performance.
Compared to ordinary steel grounding electrodes, the grounding module has a significantly larger diameter, allowing for faster conduction of fault current to the ground under the same fault current conditions. Furthermore, its multi-channel distributed arrangement on the grounding electrode effectively reduces high-current surges in areas prone to lightning strikes. Due to its larger size compared to traditional grounding electrodes, the grounding area with the soil is also increased, reducing contact resistance.
Working Principle:
After being buried in the soil, the module maintains close contact with the soil, significantly increasing the current dissipation area of the grounding electrode and effectively reducing grounding resistance. The module’s unique moisture-retaining and hygroscopic properties keep the surrounding soil with low resistivity, further improving the conductivity of the grounding electrode.
Technical Parameters:
1. Bulk density not less than 1.68 g/cn³.
2. Resistivity not exceeding 8.5 μΩ·m, equivalent to a good metallic conductor (stainless steel, pure copper, etc.), beneficial for constructing high-quality grounding grids.
3. Ash content not exceeding 0.20%.
4. Compressive strength not less than 30 MPa, allowing for thorough compaction during grounding grid construction and improving the discharge of large surge currents!
5. Flexural strength not less than 13.5 MPa, crucial for grounding grid construction.
6. Elastic modulus not exceeding 10.0 CPa.
7. Thermal conductivity (100℃) not less than 90 W/(m·K).
8. Coefficient of thermal expansion (room temperature to 600℃) not greater than 2.8 × 10⁻⁸/℃.
9. Excellent water absorption and retention properties. Due to its firing process, the module is filled with numerous pores, resulting in excellent water affinity and water retention, making it particularly suitable for grounding in dry soils.
10. Pollution-free and does not alter the surrounding soil, adaptable to many special and demanding environments. 11. Packaging in cardboard or wooden crates saves on module transportation costs.
12. Long lifespan, not easily broken, with a service life of up to 50 years.
13. Connections can be made by thermoforming or electric welding, facilitating construction.
Product Applications:
1. Working grounding, safety grounding, and lightning protection grounding for power plants, substations, switch stations, explosives depots, high-voltage transmission lines, electrified railways, telecommunications and mobile communication base stations, microwave relay stations, ground satellite receiving stations, radar stations, etc.
2. Working grounding and protective grounding for valuable precision instruments, computer room equipment, postal and telecommunications program-controlled equipment, broadcasting and television equipment, electronic medical equipment, etc.
3. Lightning protection grounding for various high-rise buildings and tall structures, scenic spots and ancient buildings, tall memorial towers, etc.
4. Lightning protection grounding for oil pipelines and oil and gas tanks, and warehouses for flammable and explosive materials.