Material and product structure
Graphite flexible grounding body is a new type of non-metallic conductive material, stable performance, low self-resistivity, high and low temperature resistance, acid and alkali corrosion resistance, resistance to high current impact, the nature of the material does not change. This product is cable-like, mainly by the internal tensile role of stainless steel alloy stranded body, external lightning current dissipation graphite body and the tower lead wire connected to the stainless steel connectors and assembly of the grounding network is to match the graphite composite connector composition.
the main performance characteristics
1, graphite flexible grounding body material is a new type of grounding materials, components are good corrosion resistance, and flat steel and other metal grounding body has a strong corrosion resistance compared with
Compared with flat steel and other metal grounding has a strong corrosion resistance. Can withstand the coastal areas of chloride salt soil, sulfate salt soil, soda salt soil and karst soil
Various types of soil corrosion.
2, graphite flexible grounding body cross-section, surface roughness constitutes a fine hole, and the soil has a good bonding properties, especially in high-resistance areas to reduce resistance
The effect is outstanding.
3, in the same resistance reduction effect, graphite flexible grounding body use less than flat steel and other metal grounding body, thus reducing the use of soil area, saving land resources.
Area, saving land resources.
4, graphite flexible grounding body and flat steel and other metal grounding body compared with good engineering, lightweight and easy to transport can be serpentine excavation, avoiding rocks,
Trees, less excavation, do not break the green, backfill, etc. Simple and easy, grounding body crimping interconnection, no welding, no need for power welding machine, etc.
Site requirements
5, graphite flexible grounding body is a non-conducting material, in the industrial frequency and high-frequency lightning strikes under the impact of the effective length of the dissipation is much larger than the steel type grounding body, with good dynamic thermal stability.
Has good dynamic thermal stability, low temperature rise, to avoid soil sintering, outstanding resistance reduction effect.
6, environmental protection does not pollute the environment. Use is not restricted by environmental and climatic conditions, can be used for a long time in the alpine region and hot and humid areas.
7, wide range of use. Can be widely used in electric power, communications, railroads, highways, petroleum, chemical industry, construction, military and other departments of lightning protection grounding project applications.
Ground engineering applications.
technical parameters
1, product appearance requirements: graphite body smooth and consistent external surface, the leakage layer is tight, stainless steel parts are silver gray;
2, resistivity: ≤ 3.5 × 10Ω.m;
3, lightning current impact resistance: 8/20μs, 200kA standard lightning current 18 times impact without damage;
4, thermal stability: 2kA, 1s) ΔT <673K (400 ℃);
5, industrial frequency inrush current withstand: 0.5s, 1kA;
6, low temperature resistance: -40 ℃;
7, grounding body tensile strength: 17.60kN;
8, resistance to embroidery and annual corrosion by acid and alkali corrosion degree (weight % ratio): no rust ≤ 0.001% service life of 50 years;
9, grounding body connecting parts tensile strength > 5kN, grounding body connecting parts connection resistance <5mΩ;
10, the grounding body connection parts by acid and alkali corrosion resistance to embroidery performance and lightning current impact resistance: not rust, 200kA impact 18 times without damage.
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