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Appearance: The diameter is 28mm, the graphite wire layer is evenly woven, dense, and there is no obvious disconnection point.
Resistivity of grounding body: ρ≤5×10-5 mΩ.m, contact resistance with connecting fittings is not greater than 4mΩ.
Grounding body power frequency grounding resistance: continuous 5 times under power frequency current 20A, DC resistance change rate is not more than 10%, contact resistance with connecting fittings is not more than 4mΩ.
Impulse current tolerance: greater than 200kA standard lightning current impact, the DC resistance change rate is not greater than 10%, and the contact resistance with the connecting fitting is not greater than 4mΩ.
High temperature performance: After baking at a constant temperature of 100°C for 0.5h, after returning to room temperature, the DC resistivity change is not more than 10%, and the contact resistance with the connecting fittings is not more than 4mΩ.
Tensile performance: withstand 1KN tension, the change rate of DC resistance is not more than 10%, and the contact resistance with the connecting fittings is not more than 4mΩ.
Anti-corrosion performance: Immerse in the simulated solution of acid-base soil, wash and dry after soaking in the five solutions of pH 3~9 for 72 hours, the DC resistivity change is not more than 10%, and the contact resistance with the connecting fittings is not more than 4mΩ.
Application fields of graphite grounding wire:
1. Graphite grounding wires can be used for oil pipelines and oil and gas tanks, and lightning protection grounding can be used for warehouses of flammable and explosive materials.
2. Graphite grounding wire can be used for lightning protection grounding of various high-rise buildings, tall structures, famous ancient buildings, tall monuments, etc.
3. The graphite grounding wire can be grounded through the working grounding and protective grounding of precious precision instruments, computer room equipment, post and telecommunications program-controlled equipment, radio and television equipment, and electronic medical equipment.
4. Graphite grounding wire can be used for working grounding, safety grounding and lightning protection grounding of power plants, substations, switchboards, high-voltage transmission lines, electrified railways, telecommunications, mobile communication stations, microwave relay stations, ground satellite receiving stations and radar stations.
5. Lightning protection grounding of wind power generation projects.
Appearance: The diameter is 28mm, the graphite wire layer is evenly woven, dense, and there is no obvious disconnection point.
Resistivity of grounding body: ρ≤5×10-5 mΩ.m, contact resistance with connecting fittings is not greater than 4mΩ.
Grounding body power frequency grounding resistance: continuous 5 times under power frequency current 20A, DC resistance change rate is not more than 10%, contact resistance with connecting fittings is not more than 4mΩ.
Impulse current tolerance: greater than 200kA standard lightning current impact, the DC resistance change rate is not greater than 10%, and the contact resistance with the connecting fitting is not greater than 4mΩ.
High temperature performance: After baking at a constant temperature of 100°C for 0.5h, after returning to room temperature, the DC resistivity change is not more than 10%, and the contact resistance with the connecting fittings is not more than 4mΩ.
Tensile performance: withstand 1KN tension, the change rate of DC resistance is not more than 10%, and the contact resistance with the connecting fittings is not more than 4mΩ.
Anti-corrosion performance: Immerse in the simulated solution of acid-base soil, wash and dry after soaking in the five solutions of pH 3~9 for 72 hours, the DC resistivity change is not more than 10%, and the contact resistance with the connecting fittings is not more than 4mΩ.
Application fields of graphite grounding wire:
1. Graphite grounding wires can be used for oil pipelines and oil and gas tanks, and lightning protection grounding can be used for warehouses of flammable and explosive materials.
2. Graphite grounding wire can be used for lightning protection grounding of various high-rise buildings, tall structures, famous ancient buildings, tall monuments, etc.
3. The graphite grounding wire can be grounded through the working grounding and protective grounding of precious precision instruments, computer room equipment, post and telecommunications program-controlled equipment, radio and television equipment, and electronic medical equipment.
4. Graphite grounding wire can be used for working grounding, safety grounding and lightning protection grounding of power plants, substations, switchboards, high-voltage transmission lines, electrified railways, telecommunications, mobile communication stations, microwave relay stations, ground satellite receiving stations and radar stations.
5. Lightning protection grounding of wind power generation projects.
