Grounding Resistance Reduction Agent
Product Introduction
Grounding to the mechanism of drag reduction agent reduce the contact resistance grounding resistance reduction agent in metal around the body, after its wrapped tightly around the grounding body, and closely connected with soil layer, forming a larger diameter of the conductive body, and the conductive to experience in the extension of dendritic body in the earth, has branches effect (grounding resistance reduction agent through the gap into the surrounding soil soil infiltration), so that grounding resistance reduction agent to become a good media, its inner layer is closely combined with the metal grounding body, and its outer is closely combined with the soil, thus substantially reducing the grounding body and the contact resistance of the soil.
- Application range：
- Power plants, substations, nuclear power construction, wind power construction, hydropower construction, switch stations, high-voltage transmission lines.
- Electrified railway, telecommunication, mobile communication base station, microwave relay station, ground satellite receiving station, radar station and other work ground, safety ground and lightning protection ground.
- Valuable precision instruments, computer room equipment, post and telecommunications program control equipment, radio and TELEVISION equipment, electronic medical equipment and other work grounding and protection grounding.
- All kinds of high-rise buildings and tall structures, historic sites, tall monuments, forest fire prevention and mountain road monitoring lightning grounding.
- Oil conveying pipelines and oil and gas tanks, lightning-proof grounding of flammable and explosive material warehouse.
- Especially suitable for high mountains, drought, soil resistivity.
Product Parameter
|
Appearance |
black and gray powder |
|
PH |
7-12, and in a variety of PH value of the soil can neutralize its acid base to reach neutral base |
|
Particle size |
≥95% under 200 mesh sieve |
|
Complete solidification period |
less than 24 hours |
|
Drag reduction rate |
40%-85% |
|
Corrosiveness |
resist acid and alkali corrosion |
|
Pollution |
Wu Du, no pollution |
|
Period of validity |
> 40 years |
Product Specification
| Dosage calculation | |
|
Calculation formula of vertical grounding |
G = 1/4 L·g·π (D2 - d2) Where: G-- amount of resistance reducing agent (kg) L-- Length of grounding body (m) g -- Density of drag reducer (g=1250kg/m2) d -- Equivalent diameter of grounding body (m) D-- Earth pit diameter (m) |
|
In the soil resistivity ρ ≤ 500 Ω.m, D = 0.14 m; In 500 Ω. M < ρ ≤ 1000 Ω.m, D = 0.16 m; In 1000 Ω. M <ρ ≤ 2000 Ω.m, D = 0.19 m; In ρ > 2000 Ω.m, D = 0.22 m. |
|
|
Horizontal grounding calculation formula |
G = (A2 - S)·L. Where: G-- amount of resistance reducing agent (kg) S-- Cross-sectional area (m2) of the grounding body L-- Length of grounding body (m) g -- Density of drag reducer (g=1250kg/m3) A-- Side length of the rectangular pit (m) with drag reducing agent |
|
In the soil resistivity ρ ≤ 500 Ω.m, A = 0.1 m; In 500 Ω. M < ρ ≤ 1000 Ω.m, take A = 0.13 m; In 1000 Ω. M <ρ ≤ 2000 Ω.m, take A = 0.15 m; In ρ > 2000 Ω.m, D = 0.18 m. |
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