CN111555051A - Graphite-based grounding electrode for low-voltage power distribution, grounding device and construction method of grounding device - Google Patents
Graphite-based grounding electrode for low-voltage power distribution, grounding device and construction method of grounding device Download PDFInfo
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- CN111555051A CN111555051A CN202010597220.2A CN202010597220A CN111555051A CN 111555051 A CN111555051 A CN 111555051A CN 202010597220 A CN202010597220 A CN 202010597220A CN 111555051 A CN111555051 A CN 111555051A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
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- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/12—Back-filling of foundation trenches or ditches
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
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Abstract
The invention relates to a graphite-based grounding electrode for low-voltage power distribution, a grounding device and a construction method thereof. The grounding device comprises a plurality of grounding downleads, a plurality of grounding downlead stranded wires and a plurality of grounding electrodes, wherein the plurality of grounding downlead stranded wires are connected end to end and encircle the grounding groove arranged around the low-voltage distribution equipment, and two adjacent grounding downlead stranded wires are connected together through a sleeve. The grounding device is of a combined split structure, the graphene grounding electrodes in corresponding quantity can be selected for assembly according to actual construction requirements, the utilization rate of grounding materials can be obviously improved, and the grounding device is suitable for popularization and utilization.
Description
Technical Field
The invention relates to the technical field of grounding equipment, in particular to a graphite-based grounding electrode for low-voltage power distribution, a grounding device and a construction method thereof.
Background
The distribution grounding device is divided into various types according to different equipment capacity and application and environments, and the various types of grounding devices in typical design and detection specifications of distribution networks of the national network company and the south network company are composed of a plurality of parts, so that the design, the bid, the installation decision and the time consumption are caused, the field welding manufacturing installation is required, and the quality cannot be ensured. At present, in a low-voltage power distribution assembly, in order to meet the requirement of electrical grounding continuity, a grounding point is generally required on a door panel of a low-voltage cabinet or a box, and a grounding mode of the grounding point generally adopts a sectional screw rod which is spray-welded on the inner side of the door panel.
In order to enable the grounding resistance value to meet the standard requirement, when the grounding resistance value of the ground grid is designed, theoretical analysis and calculation must be carried out on the actual engineering situation, and then a feasible scheme is adopted for construction, so that economic loss caused by unnecessary engineering errors is avoided. With the development of informatization, the requirement on the resistance value of the grounding resistor is lower and lower. In the conventional lightning protection ground grid transformation, the currently adopted resistance reduction measures mainly include epitaxial grounding, increase of the area of a ground grid, use of a resistance reduction agent, increase of the number of vertical grounding electrodes and the like. Because urban land resources are limited and land price is expensive, resistance reduction by increasing the area of a grounding grid is not desirable; in the case of low resistance, even if a resistance reducing agent is used, the resistance reducing effect is not remarkable, and the manufacturing cost is high. Therefore, it is a future development trend to form a three-dimensional ground net by deepening the ground net depth. Because the vertical grounding body is added, the investment is low, the construction is simple, and the resistance reduction effect is obvious, the method is widely applied to the resistance reduction transformation of small and medium-sized grounding grids.
Disclosure of Invention
The invention aims to solve the technical problems and provide a graphite-based grounding electrode for low-voltage power distribution, a grounding device and a construction method thereof.
In order to solve the technical problems, the invention adopts the technical scheme that: a graphite-based grounding electrode for low-voltage power distribution comprises an earth tip, a slow-release rod and a plurality of solid graphite grounding rods, wherein the solid graphite rods are connected in series end to end, the earth tip is connected with the head end of the solid graphite rod positioned at the foremost end, the slow-release rod is connected with the tail end of the solid graphite rod positioned at the rearmost end, the solid graphite grounding rod comprises a main body part and a connecting part, the connecting part is positioned at the head end of the main body part, the diameter of the connecting part is smaller than that of a cylinder, the connecting part is connected with the main body part through a reducing part, a graphite braid is wrapped outside the main body part, a plurality of braid hoops are uniformly distributed outside the graphite braid along the length direction of the main body part, an inserting groove is formed in the center of the tail end of the main body part, and the connecting part of the rear solid graphite, the ground-entering pointed end comprises a cylindrical part and a pointed part, the pointed part is arranged at the head end of the cylindrical part, the center of the tail end of the cylindrical part is provided with an inserting groove, the connecting part of the solid graphite grounding rod positioned at the forefront is arranged in the inserting groove of the ground-entering pointed end, the slow release rod comprises a slow release resistance reducing pipe, a slow release connecting seal head and a tail connecting seal head, a central through hole used for filling a slow release agent is formed in the slow release resistance reducing pipe, slow release holes are distributed in the side wall of the slow release resistance reducing pipe corresponding to the through hole, internal threads are arranged on the inner walls of the two ends of the central through hole, the slow release connecting seal head comprises a plug connector capable of being placed in a tail end plug groove of the solid graphite grounding rod and a threaded rod coaxially and integrally connected with the plug connector, the slow release connecting seal head can be screwed with the slow release resistance reducing pipe through the threaded rod, the tail connecting seal head comprises a connector and a threaded rod coaxially and integrally connected with the plug connector, and the tail connecting seal head can be.
The invention further optimizes the graphite-based grounding electrode for low-voltage power distribution: the main body, the connecting portion and the diameter-variable portion are made of copper-clad steel.
The invention further optimizes the graphite-based grounding electrode for low-voltage power distribution: file patterns are arranged on the outer surfaces of the connecting part and the plug-in connector.
The utility model provides a graphite base earthing device for low-voltage distribution, including many ground connection downleads, many ground connection downleads stranded conductor and a plurality of earthing pole, many ground connection downleads stranded conductor end to end encircle to set up in the ground connection ditch around low-voltage distribution equipment, link together through the sleeve between two adjacent ground connection downleads, the lower extreme of ground connection downlead is connected with ground connection downlead, the upper end of ground connection downlead is connected with low-voltage distribution equipment's earthed pole, the earthing pole that is located rearmost passes through the afterbody connection head and is in the same place with sleeve fusion welding.
The construction method of the graphite-based grounding device for low-voltage power distribution comprises the following steps:
s1: preparation before construction
Before construction, surveying a site according to a design drawing, and determining a construction scheme, wherein the construction scheme comprises the number of grounding downleads, grounding downleads and grounding electrodes;
s2: digging trench
Excavating a grounding ditch on an original soil layer or a tamped bedding soil layer, wherein the excavation position of a foundation pit at the joint of a grounding electrode and a grounding down-leading stranded wire meets the requirement of convenient connection construction;
s3: assembled grounding electrode
Selecting a required number of solid graphite grounding rods according to a construction scheme, connecting the solid graphite grounding rods end to end, then installing an earth-entering tip at the head end, installing a slow-release rod at the tail end, and sequentially completing the assembly of all grounding electrodes;
s4: laying grounding device
According to the construction scheme, firstly, an earth electrode is inserted into an earth ditch through an earth entry tip, then, earth down-leading stranded wires are connected end to end and are arranged in the earth ditch in a surrounding mode, adjacent earth down-leading stranded wires are connected together through a sleeve, a tail connecting end socket of the earth electrode is welded with a sleeve in a fusion welding mode, finally, the upper end of an earth down-leading wire is connected with an earth rod of low-voltage distribution equipment through a bolt, and the lower end of the earth down-leading wire is connected with the earth down-leading stranded wires through a crimping piece;
s5: buried grounding device
Backfilling in the ground ditch, wherein stones, plastics and construction wastes are not clamped in the backfilled soil, the soil is tamped in layers during backfilling, and an anti-settling layer with the height of 100-300 mm is arranged at the upper part.
The construction method of the graphite-based grounding device for low-voltage power distribution is further optimized as follows: when the ground ditch is excavated, if larger obstacles such as stones, trees and the like are encountered, the ground ditch can be excavated by detour, but the total length of the ground ditch is ensured to be unchanged.
The construction method of the graphite-based grounding device for low-voltage power distribution is further optimized as follows: when the earth trench of the rocky region or the soil region with higher resistivity is backfilled, a plain soil cushion layer with the thickness of not less than 100mm is backfilled, and soil without sundries such as stones, construction waste, plastics and the like is tamped and backfilled layer by layer after the earth trench is laid.
The construction method of the graphite-based grounding device for low-voltage power distribution is further optimized as follows: in order to prevent the grounding body from being exposed due to rain wash, the earth surface can be solidified and protected after backfilling in the area with serious water and soil loss.
The grounding electrode, the grounding device and the construction method have the following beneficial effects:
the grounding device is of a combined structure and comprises a plurality of grounding downleads, a plurality of grounding downlead stranded wires and a plurality of grounding electrodes, the number of all the parts can be matched according to actual construction requirements, the grounding downleads are used for connecting a grounding grid with low-voltage distribution equipment, the grounding downlead stranded wires are used for connecting the grounding electrodes together, the grounding electrodes are also of a combined structure and comprise grounding cusps and a plurality of solid graphite grounding rods, the solid graphite grounding rods with corresponding number can be selected according to actual construction requirements for assembly, the utilization rate of grounding materials is high, and the grounding device is suitable for popularization and utilization.
Drawings
FIG. 1 is a schematic structural diagram of a ground electrode according to the present invention;
FIG. 2 is a schematic structural diagram of a solid graphite ground rod in the ground electrode of the present invention;
FIG. 3 is a schematic structural diagram of a slow-release rod in the grounding electrode of the present invention;
FIG. 4 is a schematic view of the connection relationship of the grounding device of the present invention in the use state;
the labels in the figure are: 1. the ground connection device comprises an earth tip, 2 parts of a slow release rod, 2-1 parts of a slow release resistance reducing pipe, 2-2 parts of a slow release connection end socket, 2-3 parts of a tail connection end socket, 2-4 parts of a central through hole, 2-5 parts of a slow release hole, 3 parts of a solid graphite grounding rod, 3-1 parts of a main body part, 3-2 parts of a connecting part, 3-3 parts of a diameter changing part, 3-4 parts of a graphite braid, 3-5 parts of a braid hoop, 4 parts of a braid hoop, 5 parts of a grounding down lead, 6 parts of a grounding down stranded wire, 7 parts of a grounding ditch, a grounding rod, 8 parts of a grounding.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Example 1
As shown in the figure: the utility model provides a graphite base earthing pole for low-voltage distribution, includes ground prong 1, slowly-releasing stick 2 and a plurality of solid graphite earth bar 3, and a plurality of solid graphite earth bar 3 end to end connect in series together, and ground prong 1 is connected with the head end that is located foremost solid graphite earth bar 3, and slowly-releasing stick 2 is connected with the tail end that is located rearmost solid graphite earth bar 3, solid graphite earth bar 3 includes main part 3-1 and connecting portion 3-2, and connecting portion 3-2 is located the head end of main part 3-1, and the diameter of connecting portion 3-2 is less than the diameter of cylinder, is connected through reducing portion 3-3 between connecting portion 3-2 and the main part 3-1, the material of main part 3-1, connecting portion 3-2 and reducing portion 3-3 is the copper and covers the steel material. The outer part of the main body part 3-1 is wrapped with a graphite braid 3-4, a plurality of braid hoops 3-5 are uniformly distributed outside the graphite braid 3-4 along the length direction of the main body part 3-1, the center of the tail end of the main body part 3-1 is provided with a splicing groove, the connecting part 3-2 of the rear solid graphite grounding rod 3 of two adjacent solid graphite grounding rods 3 is placed in the splicing groove of the front solid graphite grounding rod 3, the ground-entering pointed tip 1 comprises a cylindrical part and a pointed spine part, the pointed spine part is arranged at the head end of the cylindrical part, the center of the tail end of the cylindrical part is provided with a splicing groove, the connecting part 3-2 of the foremost solid graphite grounding rod 3 is placed in the splicing groove of the ground-entering pointed tip 1, the slow-release rod 2 comprises a slow-release resistance-reducing tube 2-1, a slow-release connecting end socket 2-2 and a, the slow-release resistance-reducing pipe 2-1 is internally provided with a central through hole 2-4 for filling a slow-release agent, the slow-release resistance-reducing pipe 2-1 is provided with slow-release holes 2-5 on the side wall corresponding to the through hole, the inner walls of the two ends of the central through hole 2-4 are respectively provided with an internal thread, the slow-release connecting end enclosure 2-2 comprises a plug-in connector capable of being placed in a plug-in groove at the tail end of a solid graphite grounding rod 3 and a threaded rod coaxially and integrally connected with the plug-in connector, the slow-release connecting end enclosure 2-2 can be screwed with the slow-release resistance-reducing pipe 2-1 through the threaded rod, the tail connecting end enclosure 2-3 comprises a connector and a threaded rod coaxially and integrally connected with the plug-in connector, the tail connecting end enclosure 2-3 can be screwed with the slow.
The solid graphite grounding rod is connected in an interference fit mode, so that all design requirements of external structure fastening and the like are avoided, the production process is greatly simplified, the production efficiency is improved, particularly, when the grounding electrode is assembled, a complex large-scale tool is not needed, construction and installation can be carried out only by using an oil pick, ten people can install the grounding work of 2 foundation towers in one day, the product installation is very convenient, the construction can be carried out only by excavating 300 to 300 at the rod beating position, the depth of the grounding rod is deepest to 60 meters, the resistance reduction capability is very obvious, a trench and earth backfill are not needed, the installation efficiency is effectively improved, and manpower and material resources are greatly saved.
Compared with the prior art, the connection modes such as welding, drilling, locking and the like have stronger bearing capacity and impact resistance, so that the earth electrode has more stable and reliable impact resistance under the continuous drive of an oil pick, the service life of an indoor product is more than 40 years, the engineering construction is simple, the method is suitable for various environments, the product is light, the requirements of different customers and broadcasters can be met, the engineering additional cost is low, and the technology is reliable.
Example 2
The utility model provides a graphite base earthing device for low-voltage distribution, includes many ground connection downleads 4, many ground connection downlead stranded conductor 5 and a plurality of embodiment 1 earthing pole 8, many ground connection downleads 5 end to end encircle set up in earthing ditch 6 around low-voltage distribution equipment, link together through sleeve 8 between two adjacent ground connection downleads 5, and the lower extreme of ground connection downlead 4 is connected with ground connection downlead stranded conductor 5, and the upper end of ground connection downlead 4 is connected with low-voltage distribution equipment's earthed pole 7, and the earthing pole that is located rearmost is in the same place through end connection head 2-3 and sleeve 8 fusion welding.
Example 3
A construction method of a graphite-based grounding device for low-voltage power distribution comprises the following steps:
s1: preparation before construction
Before construction, surveying a site according to a design drawing, and determining a construction scheme, wherein the construction scheme comprises the number of grounding downleads, grounding downleads and grounding electrodes;
s2: digging trench
Excavating a grounding ditch on an original soil layer or a tamped bedding soil layer, wherein the excavation position of a foundation pit at the joint of a grounding electrode and a grounding down-leading stranded wire meets the requirement of convenient connection construction; when the ground ditch is excavated, if larger obstacles such as stones, trees and the like are encountered, the ground ditch can be excavated by detour, but the total length of the ground ditch is ensured to be unchanged.
S3: assembled grounding electrode
Selecting a required number of solid graphite grounding rods according to a construction scheme, connecting the solid graphite grounding rods end to end, then installing an earth-entering tip at the head end, installing a slow-release rod at the tail end, and sequentially completing the assembly of all grounding electrodes;
s4: laying grounding device
According to the construction scheme, firstly, an earth electrode is inserted into an earth ditch through an earth entry tip, then, earth down-leading stranded wires are connected end to end and are arranged in the earth ditch in a surrounding mode, adjacent earth down-leading stranded wires are connected together through a sleeve, a tail connecting end socket of the earth electrode is welded with a sleeve in a fusion welding mode, finally, the upper end of an earth down-leading wire is connected with an earth rod of low-voltage distribution equipment through a bolt, and the lower end of the earth down-leading wire is connected with the earth down-leading stranded wires through a crimping piece;
s5: buried grounding device
Backfilling in the ground ditch, wherein stones, plastics and construction wastes are not clamped in the backfilled soil, the soil is tamped in layers during backfilling, and an anti-settling layer with the height of 100-300 mm is arranged at the upper part. When the earth trench of the rocky region or the soil region with higher resistivity is backfilled, a plain soil cushion layer with the thickness of not less than 100mm is backfilled, and soil without sundries such as stones, construction waste, plastics and the like is tamped and backfilled layer by layer after the earth trench is laid. In order to prevent the grounding body from being exposed due to rain wash, the earth surface can be solidified and protected after backfilling in the area with serious water and soil loss.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes and modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (8)
1. The utility model provides a graphite base earthing pole for low voltage distribution which characterized in that: the grounding device comprises a grounding tip (1), a slow release rod (2) and a plurality of solid graphite grounding rods (3), wherein the solid graphite grounding rods (3) are connected in series end to end, the grounding tip (1) is connected with the head end of the solid graphite grounding rod (3) positioned at the foremost end, the slow release rod (2) is connected with the tail end of the solid graphite grounding rod (3) positioned at the rearmost end, the solid graphite grounding rod (3) comprises a main body part (3-1) and a connecting part (3-2), the connecting part (3-2) is positioned at the head end of the main body part (3-1), the diameter of the connecting part (3-2) is smaller than that of a cylinder, the connecting part (3-2) is connected with the main body part (3-1) through a diameter-changing part (3-3), a graphite braid (3-4) wraps the main body part (3-1), a plurality of braided layer hoops (3-5) are uniformly distributed outside the graphite braided layers (3-4) along the length direction of the main body part (3-1), an insertion groove is formed in the center of the tail end of the main body part (3-1), a connecting part (3-2) of the rear solid graphite grounding rod (3) in two adjacent solid graphite grounding rods (3) is arranged in the insertion groove of the front solid graphite grounding rod (3), the ground-entering pointed tip (1) comprises a cylindrical part and a pointed thorn part, the pointed thorn part is arranged at the head end of the cylindrical part, the insertion groove is formed in the center of the tail end of the cylindrical part, the connecting part (3-2) of the foremost solid graphite grounding rod (3) is arranged in the insertion groove of the ground-entering pointed tip (1), and the slow-release rod (2) comprises a slow-release resistance-reducing pipe (2-1), a slow-release connecting end socket (2-2) and a tail connecting end socket (2-3, the slow-release resistance reducing tube (2-1) is internally provided with a central through hole (2-4) for filling a slow-release agent, the slow-release holes (2-5) are distributed on the side wall of the slow-release resistance reducing tube (2-1) corresponding to the through hole, internal threads are arranged on the inner walls of the two ends of the central through hole (2-4), the slow-release connecting end enclosure (2-2) comprises a plug-in connector capable of being placed in a plug-in groove at the tail end of the solid graphite grounding rod (3) and a threaded rod coaxially and integrally connected with the plug-in connector, the slow-release connecting end enclosure (2-2) can be screwed with the slow-release resistance reducing tube (2-1) through the threaded rod, the tail connecting end enclosure (2-3) comprises a connector and a threaded rod coaxially and integrally connected with the plug-in connector, and the tail connecting end enclosure (.
2. The graphite-based ground electrode for low-voltage power distribution according to claim 1, wherein: the main body part (3-1), the connecting part (3-2) and the diameter-variable part (3-3) are made of copper-clad steel materials.
3. The graphite-based ground electrode for low-voltage power distribution according to claim 1, wherein: file patterns are arranged on the outer surfaces of the connecting part (3-2) and the plug-in connector.
4. The utility model provides a graphite base earthing device for low voltage distribution which characterized in that: including many ground connection downleads (4), many ground connection downlead (5) and a plurality of claim 1 the earthing pole, many ground connection downlead (5) end to end encircle set up in earthing ditch (6) around low voltage distribution equipment, link together through sleeve (8) between two adjacent ground connection downlead (5), the lower extreme and the ground connection downlead (5) of ground connection downlead (4) are connected, the upper end and the earthing rod (7) of low voltage distribution equipment of ground connection downlead (4) are connected, the earthing pole that is located the rearmost is in the same place through end connection head (2-3) and sleeve (8) fusion welding.
5. The method for constructing a graphite-based grounding device for low-voltage power distribution according to claim 4, wherein: the method comprises the following steps:
s1: preparation before construction
Before construction, surveying a site according to a design drawing, and determining a construction scheme, wherein the construction scheme comprises the number of grounding downleads, grounding downleads and grounding electrodes;
s2: digging trench
Excavating a grounding ditch on an original soil layer or a tamped bedding soil layer, wherein the excavation position of a foundation pit at the joint of a grounding electrode and a grounding down-leading stranded wire meets the requirement of convenient connection construction;
s3: assembled grounding electrode
Selecting a required number of solid graphite grounding rods according to a construction scheme, connecting the solid graphite grounding rods end to end, then installing an earth-entering tip at the head end, installing a slow-release rod at the tail end, and sequentially completing the assembly of all grounding electrodes;
s4: laying grounding device
According to the construction scheme, firstly, an earth electrode is inserted into an earth ditch through an earth entry tip, then, earth down-leading stranded wires are connected end to end and are arranged in the earth ditch in a surrounding mode, adjacent earth down-leading stranded wires are connected together through a sleeve, a tail connecting end socket of the earth electrode is welded with a sleeve in a fusion welding mode, finally, the upper end of an earth down-leading wire is connected with an earth rod of low-voltage distribution equipment through a bolt, and the lower end of the earth down-leading wire is connected with the earth down-leading stranded wires through a crimping piece;
s5: buried grounding device
Backfilling in the ground ditch, wherein stones, plastics and construction wastes are not clamped in the backfilled soil, the soil is tamped in layers during backfilling, and an anti-settling layer with the height of 100-300 mm is arranged at the upper part.
6. The method for constructing a graphite-based grounding device for low-voltage power distribution according to claim 5, wherein: when the ground ditch is excavated, if larger obstacles such as stones, trees and the like are encountered, the ground ditch can be excavated by detour, but the total length of the ground ditch is ensured to be unchanged.
7. The method for constructing a graphite-based grounding device for low-voltage power distribution according to claim 5, wherein: when the earth trench of the rocky region or the soil region with higher resistivity is backfilled, a plain soil cushion layer with the thickness of not less than 100mm is backfilled, and soil without sundries such as stones, construction waste, plastics and the like is tamped and backfilled layer by layer after the earth trench is laid.
8. The method for constructing a graphite-based grounding device for low-voltage power distribution according to claim 5, wherein: in order to prevent the grounding body from being exposed due to rain wash, the earth surface can be solidified and protected after backfilling in the area with serious water and soil loss.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112993605A (en) * | 2021-02-08 | 2021-06-18 | 罗伟 | Compound grounding body of graphite alkene |
| CN113437542A (en) * | 2021-06-25 | 2021-09-24 | 河南四达电力设备股份有限公司 | Modular excavation-free grounding device of stainless steel package steel |
| CN113555700A (en) * | 2021-07-28 | 2021-10-26 | 河南四达电力设备股份有限公司 | Deep vertical quick-assembly graphite grounding electrode and processing technology thereof |
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