CN212085234U - Grounding net system - Google Patents
Grounding net system Download PDFInfo
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- CN212085234U CN212085234U CN202021223463.1U CN202021223463U CN212085234U CN 212085234 U CN212085234 U CN 212085234U CN 202021223463 U CN202021223463 U CN 202021223463U CN 212085234 U CN212085234 U CN 212085234U
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- conductive
- grounding electrode
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- 239000004020 conductor Substances 0.000 claims abstract description 190
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 25
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 22
- 230000003647 oxidation Effects 0.000 claims abstract description 22
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 22
- 239000011241 protective layer Substances 0.000 claims abstract description 13
- 239000007787 solid Substances 0.000 claims description 12
- 239000010410 layer Substances 0.000 claims description 10
- 238000005253 cladding Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 15
- 230000017525 heat dissipation Effects 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002500 effect on skin Effects 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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- Prevention Of Electric Corrosion (AREA)
Abstract
A grounding grid system belongs to the field of grounding grids. The grounding device comprises a horizontal grounding electrode and a vertical grounding electrode; the conductor part of the vertical grounding electrode is composed of a first conductor, the first conductor is a hollow pure aluminum conductor or a hollow aluminum alloy conductor, the cross section of the first conductor is in a ring shape, the outer diameter of the ring shape is 40 mm-50 mm, the wall thickness of the ring shape is 3.5 mm-5.0 mm, and the surface of the first conductor is treated by a conductive oxidation method to form a conductive protective layer. Or the vertical grounding electrode comprises a first conductor and a second conductor, the first conductor is coated on the surface of the second conductor and is connected with the second conductor in an undetachable manner, the first conductor is a hollow pure aluminum conductor or a hollow aluminum alloy conductor, the second conductor is angle steel or flat steel, the thickness of the second conductor is 0.2-0.5 mm, and the outer surface of the second conductor is treated by a conductive oxidation method to form a conductive protective layer. It can give consideration to corrosion resistance, conductivity and heat dissipation effect.
Description
Technical Field
The utility model relates to an earth mat technical field, concretely relates to earth mat system.
Background
The grounding device is an important component of an overhead transmission line, the conventional grounding device of the transmission line is mainly buried underground by a comprehensive grounding device consisting of galvanized round steel, but the resistivity of steel is higher than that of copper and aluminum, the corrosion speed of the steel in soil is higher, the steel cannot have the same service life as other components of the transmission line, and the steel needs to be periodically checked and replaced. While copper materials are high in price and poor in economical efficiency when used as grounding materials, common aluminum or aluminum alloy materials are naturally oxidized in air to form compact high-insulation oxide films, and cannot be directly used as grounding materials.
In the grounding grid system, the horizontal grounding grid has the functions of voltage equalization, reduction of contact voltage and step voltage, and current dissipation. The difference between the horizontal grounding electrode and the vertical grounding electrode is as follows: the vertical grounding electrode is mainly used for dissipating and leaking lightning current, and the horizontal grounding electrode is mainly used for dissipating and leaking power frequency current.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a ground net system to solve current ground net system and can not compromise corrosion resistance, electric current and loose the technical problem who leaks effect and radiating effect.
In order to solve the technical problems, the following technical scheme can be selected according to the needs:
a grounding grid system comprises a horizontal grounding electrode and a vertical grounding electrode; the conductor part of the vertical grounding electrode is composed of a first conductor, the first conductor is a hollow pure aluminum conductor or a hollow aluminum alloy conductor, the cross section of the first conductor is in a ring shape, the outer diameter of the ring shape is 40 mm-50 mm, the wall thickness of the ring shape is 3.5 mm-5.0 mm, and the surface of the first conductor is treated by a conductive oxidation method to form a conductive protection layer.
Preferably, the horizontal grounding electrode comprises a third conductor and a fourth conductor, the third conductor is coated on the surface of the fourth conductor and is connected with the fourth conductor in a non-detachable mode, the third conductor is a hollow pure aluminum conductor or a hollow aluminum alloy conductor, the fourth conductor is round steel, the thickness of the third conductor is 0.2-0.5 mm, and the outer surface of the third conductor is treated by a conductive oxidation method to form a conductive protective layer.
Preferably, the horizontal grounding electrode comprises a third conductor, the third conductor is a solid pure aluminum conductor or a solid pure aluminum alloy conductor, the cross section of the third conductor is circular, the diameter of the circle is 10 mm-12 mm, and the outer surface of the third conductor is treated by a conductive oxidation method to form a conductive protective layer.
The utility model provides a grounding grid system, includes horizontal earthing pole and perpendicular earthing pole, perpendicular earthing pole includes first conductor and second conductor, first conductor cladding is in second conductor surface and with the undetachable connection of second conductor, first conductor is hollow pure aluminum conductor or hollow aluminum alloy conductor, the second conductor is angle steel or band steel, first conductor thickness is 0.2mm ~ 0.5mm, the surface of first conductor adopts the conductive oxidation method to handle and forms the electrically conductive protective layer.
Preferably, the horizontal grounding electrode comprises a third conductor and a fourth conductor, the third conductor is coated on the surface of the fourth conductor and is connected with the fourth conductor in a non-detachable mode, the third conductor is a hollow pure aluminum conductor or a hollow aluminum alloy conductor, the fourth conductor is round steel, the thickness of the third conductor is 0.2-0.5 mm, and the outer surface of the third conductor is treated by a conductive oxidation method to form a conductive protective layer.
Preferably, the horizontal grounding electrode comprises a third conductor, the third conductor is a solid pure aluminum conductor or a solid pure aluminum alloy conductor, the cross section of the third conductor is circular, the diameter of the circle is 10 mm-12 mm, and the outer surface of the third conductor is treated by a conductive oxidation method to form a conductive protective layer.
Compared with the prior art, the beneficial effects of the utility model are that:
1. in the grounding grid system, the difference between the horizontal grounding electrode and the vertical grounding electrode is as follows: the vertical grounding electrode is mainly used for dissipating and discharging lightning current, and the end part of the vertical grounding electrode is obvious in current dissipation and temperature rise; the horizontal grounding electrode is mainly used for dissipating and discharging power frequency current, the current dissipation effect is uniform, and the temperature rise phenomenon at the end part also exists; under the same test parameters, the temperature rise speed and amplitude of the end part of the horizontal grounding electrode are lower than those of the vertical grounding electrode. Based on the consideration, the primary consideration of the horizontal grounding electrode is the current dispersion effect, and the secondary consideration is the heat dissipation effect; the primary consideration of the vertical grounding electrode is the heat dissipation effect, and the secondary consideration is the current dissipation effect. In the utility model, the conductive protective layer overcomes the defect of non-conductivity of alumina, and is helpful for dissipating and discharging current; the vertical grounding electrode formed by the hollow pure aluminum conductor or the hollow aluminum alloy conductor has large surface area and good heat dissipation effect; the surface area of the vertical grounding electrode formed by wrapping the angle steel or the flat steel by the hollow pure aluminum conductor or the hollow aluminum alloy conductor is large, and the heat dissipation effect is superior to that of round steel.
2. The utility model discloses use the horizontal earthing pole that hollow pure aluminum conductor or hollow aluminum alloy conductor parcel round steel formed, its free stream effect, voltage-sharing effect are superior to aforementioned perpendicular earthing pole, and the radiating effect is also superior to general steel earthing pole, galvanized steel earthing pole.
Drawings
Fig. 1 is a cross-sectional view of a vertical ground electrode of the ground grid system of the present invention.
Fig. 2 is a cross-sectional view of yet another vertical ground of the ground grid system of the present invention.
Fig. 3 is a cross-sectional view of still another vertical ground electrode of the ground grid system of the present invention.
Fig. 4 is a cross-sectional view of a horizontal ground electrode of the ground grid system of the present invention.
Fig. 5 is a cross-sectional view of yet another horizontal ground electrode of the ground grid system of the present invention.
The reference numbers indicate, 10-the second conductor, 11-the first conductor, 110-the first conductor body, 111-the conductive shield, 112-the conductive shield, 20-the fourth conductor, 21-the third conductor, 210-the third conductor body, 211-the conductive shield.
Detailed Description
The present invention is described below in terms of embodiments with reference to the accompanying drawings to assist those skilled in the art in understanding and realizing the invention. Unless otherwise indicated, the following embodiments and technical terms therein should not be understood to depart from the background of the technical knowledge in the technical field.
The length units are in millimeters (mm) unless otherwise specified below.
In the prior art, the following general knowledge exists in the field of grounding systems.
The skin effect coefficient of a conductor is related to the frequency of the current, the shape and size of the conductor.
In the grounding grid, the horizontal grounding wire is beneficial to dissipating and discharging power frequency current, and the vertical grounding wire is beneficial to dissipating and discharging lightning current.
In an effective grounding system and a low-resistance grounding system, the short-time temperature of a steel grounding wire should not exceed 400 ℃, and the short-time temperature of a copper grounding wire should not exceed 450 ℃. When the thermal qualitative of the grounding wire of the electrical equipment in the ungrounded, arc suppression coil grounded and high-resistance grounding system is verified, the temperature of the grounding wire laid under the ground is not higher than 100 ℃ for a long time.
The principle of the conductive oxidation method for preparing the conductive protective film is related to the following reaction formula:
example 1: a grounding grid system includes a horizontal grounding electrode and a vertical grounding electrode.
Referring to fig. 1, the conductor portion of the vertical ground electrode is composed of a first conductor 11, the first conductor 11 is a hollow pure aluminum conductor or a hollow aluminum alloy conductor, the cross section of the first conductor 11 is circular, the outer diameter of the circular is 40mm to 50mm, the wall thickness of the circular is 3.5mm to 5.0mm, the surface of the first conductor 11 is treated by a conductive oxidation method to form a conductive protection layer, because the first conductor 11 is a hollow ring column, during the conductive oxidation method treatment, a conductive protection layer 111 is formed on the outer surface of the first conductor 11, and a conductive protection layer 112 is formed on the inner surface of the first conductor 11.
Preferably, referring to fig. 5, the horizontal ground electrode may adopt a structure in which: the horizontal grounding electrode comprises a third conductor 21 and a fourth conductor 20, the third conductor 21 is coated on the surface of the fourth conductor 20 and is connected with the fourth conductor 20 in an undetachable manner, the third conductor 21 is a hollow pure aluminum conductor or a hollow aluminum alloy conductor, the fourth conductor 20 is round steel, the thickness of the third conductor 21 is 0.2-0.5 mm, and the outer surface of the third conductor 21 is treated by a conductive oxidation method to form a conductive protective layer 211.
Preferably, referring to fig. 4, the horizontal grounding electrode may also adopt a structure: the horizontal grounding electrode comprises a third conductor 21, the third conductor 21 is a solid pure aluminum conductor or a solid pure aluminum alloy conductor, the cross section of the third conductor 21 is circular, the diameter of the circle is 10 mm-12 mm, and the outer surface of the third conductor 21 is treated by a conductive oxidation method to form a conductive protection layer 211.
In this embodiment, when two or more grounding electrodes are crossed, a welding connection is adopted at the crossing point of the grounding electrodes, and the welding flux can be better to wrap the two or more grounding electrodes at the crossing point. Generally, the solder for welding the metal is the same metal and has conductivity, and the solder wraps two or more grounding electrodes at the intersection points to help to widen the conductive area and has good current dispersion effect.
Example 2: a grounding grid system includes a horizontal grounding electrode and a vertical grounding electrode.
Referring to fig. 2 or 3, the vertical ground electrode includes a first conductor 11 and a second conductor 10, the first conductor 11 is coated on the surface of the second conductor 10 and is non-detachably connected with the second conductor 10, the first conductor 11 is a hollow pure aluminum conductor or a hollow aluminum alloy conductor, the second conductor 10 is an angle steel or a flat steel, the thickness of the first conductor 11 is 0.2mm to 0.5mm, and the outer surface of the first conductor 11 is treated by a conductive oxidation method to form a conductive protection layer 111.
Preferably, referring to fig. 5, the horizontal ground electrode may adopt a structure in which: the horizontal grounding electrode comprises a third conductor 21 and a fourth conductor 20, the third conductor 21 is coated on the surface of the fourth conductor 20 and is connected with the fourth conductor 20 in an undetachable manner, the third conductor 21 is a hollow pure aluminum conductor or a hollow aluminum alloy conductor, the fourth conductor 20 is round steel, the thickness of the third conductor 21 is 0.2-0.5 mm, and the outer surface of the third conductor 21 is treated by a conductive oxidation method to form a conductive protective layer 211.
Preferably, referring to fig. 4, the horizontal grounding electrode may also adopt a structure: the horizontal grounding electrode comprises a third conductor 21, the third conductor 21 is a solid pure aluminum conductor or a solid pure aluminum alloy conductor, the cross section of the third conductor 21 is circular, the diameter of the circle is 10 mm-12 mm, and the outer surface of the third conductor 21 is treated by a conductive oxidation method to form a conductive protection layer 211.
In this embodiment, when two or more grounding electrodes are crossed, a welding connection is adopted at the crossing point of the grounding electrodes, and the welding flux can be better to wrap the two or more grounding electrodes at the crossing point. Generally, the solder for welding the metal is the same metal and has conductivity, and the solder wraps two or more grounding electrodes at the intersection points to help to widen the conductive area and has good current dispersion effect.
The non-detachable connection is typically a weld.
The present invention has been described in detail with reference to the accompanying drawings and examples. It should be understood that in practice the description of all possible embodiments is not exhaustive and that the inventive concepts of the present invention are presented herein by way of illustration as much as possible. Without departing from the inventive concept of the present invention and without paying creative labor, technical personnel in the technical field can make or delete combinations, specific parameters to perform experimental changes to the technical features in the above embodiments, or use the prior art in the technical field to perform the specific embodiments of conventional replacement and formation by the disclosed technical means, which all belong to the content hidden in the present invention.
Claims (6)
1. A grounding grid system comprises a horizontal grounding electrode and a vertical grounding electrode; the vertical grounding electrode is characterized in that a conductor part of the vertical grounding electrode is composed of a first conductor, the first conductor is a hollow pure aluminum conductor or a hollow aluminum alloy conductor, the cross section of the first conductor is in a ring shape, the outer diameter of the ring shape is 40-50 mm, the wall thickness of the ring shape is 3.5-5.0 mm, and the surface of the first conductor is treated by a conductive oxidation method to form a conductive protection layer.
2. The grounding grid system of claim 1, wherein the horizontal grounding electrode comprises a third conductor and a fourth conductor, the third conductor is coated on the surface of the fourth conductor and is non-detachably connected with the fourth conductor, the third conductor is a hollow pure aluminum conductor or a hollow aluminum alloy conductor, the fourth conductor is round steel, the thickness of the third conductor is 0.2 mm-0.5 mm, and the outer surface of the third conductor is treated by a conductive oxidation method to form a conductive protection layer.
3. The grounding grid system of claim 1, wherein the horizontal grounding electrode comprises a third conductor, the third conductor is a solid pure aluminum conductor or a solid pure aluminum alloy conductor, the cross section of the third conductor is circular, the diameter of the circle is 10 mm-12 mm, and the outer surface of the third conductor is treated by a conductive oxidation method to form a conductive protection layer.
4. The utility model provides a grounding grid system, includes horizontal earthing pole and perpendicular earthing pole, its characterized in that, perpendicular earthing pole includes first conductor and second conductor, first conductor cladding is in second conductor surface and with the second conductor is undetachable and connects, first conductor is hollow pure aluminum conductor or hollow aluminum alloy and leads, the second conductor is angle steel or band steel, first conductor thickness is 0.2mm ~ 0.5mm, the surface of first conductor adopts the electrically conductive oxidation method to handle and forms electrically conductive protective layer.
5. The grounding grid system as claimed in claim 4, wherein the horizontal grounding electrode comprises a third conductor and a fourth conductor, the third conductor is coated on the surface of the fourth conductor and is connected with the fourth conductor in an undetachable manner, the third conductor is a hollow pure aluminum conductor or a hollow aluminum alloy conductor, the fourth conductor is round steel, the thickness of the third conductor is 0.2 mm-0.5 mm, and the outer surface of the third conductor is treated by a conductive oxidation method to form a conductive protective layer.
6. The grounding grid system of claim 4, wherein the horizontal grounding electrode includes a third conductor, the third conductor is a solid pure aluminum conductor or a solid pure aluminum alloy conductor, the cross section of the third conductor is a circle, the diameter of the circle is 10 mm-12 mm, and the outer surface of the third conductor is treated by a conductive oxidation method to form a conductive protective layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021223463.1U CN212085234U (en) | 2020-06-29 | 2020-06-29 | Grounding net system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021223463.1U CN212085234U (en) | 2020-06-29 | 2020-06-29 | Grounding net system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212085234U true CN212085234U (en) | 2020-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021223463.1U Active CN212085234U (en) | 2020-06-29 | 2020-06-29 | Grounding net system |
Country Status (1)
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| CN (1) | CN212085234U (en) |
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2020
- 2020-06-29 CN CN202021223463.1U patent/CN212085234U/en active Active
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