Resistance reduction module/resistance reduction module price/manufacturer supplies a large number of resistance reduction modules

Resistance reduction module/resistance reduction module price/manufacturer supplies a large number of resistance reduction modules
High-efficiency resistance reduction module
It is a special grounding electrode mainly aimed at ultra-low grounding resistance requirements. The technical parameters of the resistance-reducing module are several times ahead of similar domestic products. Tests have shown that it can withstand the impact of large currents, is very easy to release lightning current without being damaged, and can be integrated with the soil. , making the effective contact area between the ground body and the soil larger than that of the metal ground body, increasing the effective dispersion area of the ground body, greatly reducing the contact resistance between the ground body and the soil, significantly improving the grounding efficiency, and reducing the land area occupied by the ground network. . The resistance reduction module
can meet the needs of resistance reduction under different conditions, increases the ion conduction path, can effectively reduce the ground resistance between the ground body and the soil, and can withstand high power frequency and surge current impact. Stable value, long service life, convenient and simple construction
The series of low-resistance and resistance-reducing module grounding treasure is a grounding body made of non-metallic materials as the main body. It has non-metallic minerals with good conductivity and stability. and metal electrodes. It can be widely used in working grounding, protective grounding, anti-interference grounding, lightning protection grounding and anti-static grounding facilities in various fields to reduce the grounding resistance and ensure the long-term stability of the grounding effect. This product has been tested by the Wuhan High Voltage Research Institute of the State Electric Power Company, and all technical indicators have met the technical requirements. The identification results can be found in the test report of the Wuhan High Voltage Research Institute of the State Electric Power Company.


1. Application

Widely used in the defense of electric power, communications, railways, construction, mining, chemical industry, national defense, various factories, warehouses and other facilities. Lightning grounding, working grounding and anti-static grounding are especially suitable for areas and occasions with high soil resistivity.

2. Main characteristics

Resistance reducing characteristics

The series resistance reducing modules use non-metallic conductive substances as the main agent, which is an inorganic physical type reducing resistance. Resistant product, no chemical contaminants. The resistivity is as low as .
, Long-lasting characteristics

The non-metallic conductive materials used in the series of resistance reduction modules have good chemical and biological stability, ensuring that the product is effective for a long time after use. The grounding module material itself has a life span of more than 10 years.

Anti-corrosion properties

The metal electrode wrapped by the resistance reduction module isolates the oxygen and moisture in the soil from contact with the ground electrode, thus greatly reducing the corrosion rate of the metal electrode. Especially when used in saline-alkali soil, the effect is more obvious. After excavation tests, a steel-gray passivation film was formed on the surface of the grounding body. There was no sign of corrosion on the grounding body, and the passivation film further protected the grounding body from corrosion. effect. According to customer requirements, the metal electrode in the middle of the module can be replaced with corrosion-resistant, highly conductive metal such as copper to extend the service life to more than 10 years.

3. Main technical parameters
Abbreviation
Shape

Model

Module body size

Weight
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Resistivity test at room temperature
Dry and wet
Sample number< br/>
Sample resistance

Sample resistivity


Module average resistivity


Technical requirements


Evaluation










Meet the requirements












, Impulse current withstand test
Dry and wet
Sample number

Test sample power frequency resistance
< br/> Power frequency resistance change rate after the test

Evaluation
Sample resistance

Sample resistivity


△

Average value △

Technical requirements












Meet the requirements
















, power frequency current withstand Test
Dry and wet
Sample number

Power frequency resistance of the test sample

Change rate of power frequency resistance after the test

Evaluation
Before test

Before test

△

Average value △

Technical requirements












Conform Requirements











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, Water loss test
Sample number

Resistance

Resistivity< br/>
Evaluation
Before test

Before test



Average value

Technical requirements






Meet the requirements





Meets requirements
















4. Precautions

Avoid high temperature and exposure to sunlight when storing.

During transportation and installation, avoid damage to the module by mechanical force or beating.

In northern alpine regions, modules should be buried below the frozen soil

5. Use

Construction steps

, When the series of resistance-reducing modules are buried horizontally, the burial depth should not be less than the distance between the grounded modules. When they are buried vertically, the distance between the resistance-reducing modules should also be as much as possible.

When the pole cores of the resistance reducing module are connected to each other or to the grounding grid, they must be welded. The welding must be lap welding, and the length of the lap welding should be at least times the width of the ground electrode core. Welding slag should be eliminated at the welding joint and anti-corrosion measures should be taken.

When backfilling high-quality clay, you should also sprinkle an appropriate amount of water and compact it in layers. After the module has fully absorbed moisture, measure the grounding resistance for an hour.
Ground resistance soil resistivity









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Note that due to differences in soil resistivity Due to differences in uniform design plans and construction quality, the actual results may deviate from the theory.

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