The Correct Installation Method Of The Grounding Module

The grounding resistance of the grounding module is mainly composed of the self-resistance of the grounding body and its connecting materials, the contact resistance between the grounding body and the surrounding soil, and the diffusion resistance of the ground current in the soil. The contact resistance of the grounding body and the soil and the diffusion current of the grounding current in the soil is the main part of the grounding resistance, accounting for more than 98% of the grounding resistance. Traditional grounding bodies are mostly metal conductors, such as flat steel, round steel, angle steel, steel pipe, copper rod, copper plate, etc. The use of traditional grounding materials to make the grounding grid is greatly affected by the season, the grounding resistance is not stable enough, and the service life of the grounding grid is relatively short. it is difficult to solve the grounding problem under the condition of particularly high soil resistivity. The resistance-reducing module is mainly made of non-metallic materials with very good conductivity and stability, and the metal material with anti-corrosion treatment on the surface is used as the skeleton, which is extruded by special equipment.

 

Grounding Module Safety Measures

1. Use various methods to minimize the grounding resistance of the grounding module.

2. Given the ground potential of the grounding module, in order to reduce the contact potential difference of the ground grid, the potential on the surface of the ground should be carefully adjusted (balanced potential).

3. Artificially increase the soil resistivity of the surface layer on the site of the outdoor power distribution device (use a high-resistivity pavement structure layer). The purpose of laying rubber carpets on the site of indoor electrical equipment is to reduce the current passing through the electric shock human body.

 

 

How to safely bury lightning protection and lightning protection products

1. Relevant records should be made for the regular maintenance of the grounding device, and the inspection cycle should be formulated according to factors such as seasons and regions during inspection. Do a good job of minor repairs, medium repairs, and major repairs in quarters, and focus on monitoring in rainy seasons.

 

2. For the embedment of the grounding module in special soil areas, it is necessary to excavate the part within a fixed time to check whether there is any abnormality. When burying, the grounding module of the adjacent resistance cannot have current flow. If there is such a situation, it should be reapplied. soil layer until the standard is reached.

 

3. Do a good job of checking the quality of the installed products, whether the welding of each part is loose, and ensure the fastening of each part. Check whether the rubber is damaged or corroded, and whether the equipment is unqualified or defective. If it does not meet the standards, it should be repaired or replaced in time.

 

4. When placing such products, it is necessary to operate in strict accordance with the procedures stipulated by the relevant industry requirements, and do a good job of checking the terrain, equipment and other related matters before installation. During the construction process, it is necessary to do a good job of installation and acceptance Record, every step must meet the requirements of engineering construction.