Model: | JTRT-GM |
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Brand: | JTRT |
Origin: | Made In China |
Category: | Security & Protection / Other Security & Protection |
Label: | ground module , earthing module , graphite module |
Price: |
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Min. Order: | 50 pc |
Last Online:18 Jul, 2016 |
Grounding module is a non-metallic conductive material is a ground -based body which consists of a conductive , non-metallic materials and good stability , the electrolyte , and the moisture absorbent agent is composed of a core metal electrode corrosion . It has a good large surface area in contact with the earth and the effect of ion dissipation , moisture absorbency, easy construction , etc., is an ideal material to replace the traditional earth grounding . According to the built-in module grounding electrode core divided into two kinds of hot-dip galvanized flat steel and copper, respectively, adapted to steel and copper and other earth systems. Due to the nature of the ground surface of the module small non-metallic materials , when will it be protected with a ground connection , it greatly reduces the contact resistance and the earth , combined with moisture absorbent so that it can give full play to its grounding system the reduction in resistance !
Works
Ground module built galvanized flat steel fire copper, will be protected when connected to ground , the effective contact area of the metal grounding and soil will greatly increase . Since the grounding module has a strong moisturizing, hygroscopic and stable conductivity , therefore , the contact resistance of the metal grounding and soil will be greatly reduced, so that the reduction in resistance grounding module is more significant .
Features
● modules with earth ground contact area is large ( about 0.6 m )
● Ground module can be well with all types of soil , rock formations good contact ,to reduce the effect of the contact resistance
● grounding module has a strong absorption , moisturizing effect , can reduce soil resistivity near
● The grounding module good ion divergence , can make it to the ion dissipation 3-5 meters underground in the soil , and the formation of a stable ion layer , improving soil properties in a wide range , thereby reducing the flow resistance of the soil bulk
● ion dissipation can lead to far deeper in the soil , and soil attached to the low resistivity region : Lower subsurface resistivity soil layer , groundwater layer and the metal layer to improve mineral diffuser
● grounding module contained the preservative may make theoretical life of more than 50 years , far greater than the useful life of galvanized steel
● If the ground network as a reduction in resistance grounding module only way , regardless of the role of flat ground , then ground flat steel corrosion resistance reduction does not affect the results, such as ground level flat ground module grounding is only two and a use wire , then ground network of integrated use of longer than 50 years
● grounding module after repeated large current impact , the grounding resistance value does not increase, nor hard, brittle hair , no breakage
● The grounding module with a stable non-metallic conductive material is conductive electrolyte module , so its corrosion-resistant , non-toxic , long life and easy construction, electrical conductivity subject to seasonal effects
● Grounding Module its excellent grounding effect can reduce the effective length of the grounding cable
Specification
Size (mm) |
Weight (kg) |
Resistivity at room temperature |
Frequency grounding resistance |
Electrode core |
Appearance |
500x400x60 |
20 |
≦ 4.0Ω |
6.5Ω |
Coated steel |
Square |
500x400x60 |
20 |
≦ 4.0Ω |
6.5Ω |
Copper |
Square |
Φ100*1000 |
17 |
≦ 4.0Ω |
6.5Ω |
Coated steel |
cylinder |
Φ200*1000 |
28 |
≦ 4.0Ω |
6.5Ω |
Coated steel |
Plum-shape |
Dosage Calculation
Horizontal, single module grounding resistance: R=0.158ρ(Ω)
Parallel total ground resistance: Rn =R/(n*η)( Ω)
ρ= Soil resistivity(Ω*M), n= Number of modules, η= Module adjusting system
Soil resistivity base web site, using the following formula to calculate the amount of ground modules:
Number of modules |
Adjustment factor |
4 |
0.76-0.80 |
6 |
0.71-0.75 |
10 |
0.66-0.71 |
20 |
0.61-0.66 |
40 |
0.55-0.61 |
60 |
0.52-0.58 |
100 |
0.49-0.55 |
Construction Methods
1. Grounding module buried under field conditions can be vertical and horizontal buried two types of embedment depth is usually 0.6m-0.8m or less ( according to the step voltage burial depth , the depth of permafrost may be).
2. Grounding module recommended spacing of not less than 4m ( ionic radius of the diffuser is 1m-3m, according to the site geological conditions) at the time of laying.
3. Grounding electrode core modules in parallel to each other or when the electrical ground connection and requires the use of exothermic welding or soldering , welding length three times the width of its connections.
4. When the ground electrode core module built for the hot dip galvanized steel , the welding slag should be removed and spread evenly corrosion resistance grounded conductive paint or wrap agent.
5. Grounding module added to the amount of water should be backfilled and compacted to ensure its stratification in close contact with the earth , until the full measure ground resistance after moisture .
Precautions
1. A storage module should maintain a certain humidity , avoid high temperature , dry, exposure.
2. The use of wooden packaging , each containing two . Using a foam pad inside the box to isolate the module and the module , the module with the walls of the box , suitable for long distance transportation and handling . Transportation and installation, to avoid mechanical damage to the module.
3. The company can according to customer requirements , processing of other shapes and sizes of modules.
Payment Terms: | T/T or L/c |
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