CN201243091Y - Composite grounding body for electrical equipment - Google Patents
Composite grounding body for electrical equipment Download PDFInfo
- Publication number
- CN201243091Y CN201243091Y CNU2008200372112U CN200820037211U CN201243091Y CN 201243091 Y CN201243091 Y CN 201243091Y CN U2008200372112 U CNU2008200372112 U CN U2008200372112U CN 200820037211 U CN200820037211 U CN 200820037211U CN 201243091 Y CN201243091 Y CN 201243091Y
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- Prior art keywords
- grounding
- soil
- electrode
- vertical
- utmost point
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- Expired - Lifetime
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- 239000002131 composite material Substances 0.000 title abstract 4
- 239000002689 soil Substances 0.000 abstract description 25
- 238000005259 measurement Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 241000251468 Actinopterygii Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 230000002335 preservative effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Manufacturing Of Electrical Connectors (AREA)
Abstract
A composite grounding body for electrical equipment is provided with a level grounding electrode and vertical grounding electrodes; a connecting lead is arranged upward at the center of the horizontal grounding electrode; a plurality of vertical grounding electrodes take the connecting lead as the center and are symmetrically arranged at the lower part of the horizontal grounding electrode; and the distance between two adjacent vertical grounding electrode is 2.4 to 6.0 meters. The horizontal grounding electrode can be beeline-shaped, star-shaped, cross-shaped or fishbone-shaped. The grounding resistance value is mainly determined by the soil resistivity and the contact resistance between the soil and the grounding body; the group number of the vertical grounding electrodes is determined by the resistance measurement value to meet the standard requirement that R is less than or equal to 10 Omega, or R is less than or equal to 4 Omega; and R is made less than the standard requirement as far as possible. The composite grounding body can be applied to the mixed soil through which the grounding electrodes can be easily threaded, and the soil resistivity does not exceed 100 Omega. The composite grounding body can be easily laid and has large contact area with the soil; besides, the grounding body is safe, reliable, economical and reasonable.
Description
Technical field
The utility model relates to a kind of bonded earth electrode of lightning protection antistatic device, particularly a kind of electric equipment.
Background technology
Whether in the electric equipment operation process, whether the performance of the fine or not decision device work of ground connection is stable, the person safety and the anlistatig ability of lightning protection.Soil environment for the Plain, earth work is often than being easier to, but soil resistivity than higher mountain area or be subjected to the place of construction site restriction, is carried out earth work and is unusual difficulty, sometimes even drop into very big human and material resources and all can not meet the demands fully.On the engineering, people are finding a kind of balance on ground connection input and the effect---promptly drop into basic engineering demands under the not too big situation.Such as, when we dropped to 1 ohm to earth resistance, the input of earth work was very huge, but we when 4 ohm even 10 ohm are brought up in the requirement of earth resistance, construction is at this moment just wanted easily relatively.
The horizontal grounding body that the vertical junction terrain is arranged in the prior art.The vertical junction terrain is used in mainly that soil resistivity is lower, soil property is clay or the place of black earth (promptly easily earth electrode is squeezed in the soil, the dynamo-electric resistance of single ground connection is no more than 100 Ω).The horizontal grounding body is used in mainly that soil resistivity is higher, soil property is sandy soil or the place of rock (promptly be not easy earth electrode is squeezed in the soil, or the single vertical grounding electrode resistance value of squeezing in the soil surpassing 100 Ω).The earth electrode of this dual mode is suitable for single, needs on-the-spot welding will do preservative treatment then during laying, and earth electrode and soil contact are little.
Summary of the invention
The technical problems to be solved in the utility model is at the deficiencies in the prior art, has proposed a kind ofly to be no more than the bonded earth electrode of the electric equipment that uses in the mixed soil that 100 Ω and earth electrode squeeze into easily, earth electrode and soil contact are big at soil resistivity.
The technical problems to be solved in the utility model is achieved through the following technical solutions, a kind of bonded earth electrode of electric equipment, be characterized in: be provided with the horizontal grounding utmost point and vertical grounding electrode, upwards be provided with the connection lead-in wire at the center of the horizontal grounding utmost point, some vertical grounding electrodes are the center to connect lead-in wire, the bottom that is arranged on the horizontal grounding utmost point of symmetry, distance is 2.4～6.0 meters between the adjacent vertical grounding electrode.
The technical problems to be solved in the utility model can also come to realize that further described horizontal grounding is yi word pattern, star-like or cross very by the following technical programs.
The technical problems to be solved in the utility model can also come further to realize that the described horizontal grounding utmost point is provided with a main body by the following technical programs, and being that axle is symmetrical with the main body is provided with some branches.Constitute fish bone well.
The utility model compared with prior art, connection lead-in wire with horizontal grounding utmost point center is the center, the some vertical grounding electrodes that are provided with in the bottom of horizontal grounding utmost point symmetry are formed bonded earth electrode, grounding resistance is mainly decided by the contact resistance of soil resistivity and soil and earth electrode, reduces earth resistance and just starts with from these two aspects.The group number of vertical grounding electrode is by resistance measurement value decision, until satisfying code requirement R≤10 Ω or R≤4 Ω, and accomplishes much smaller than code requirement as far as possible.Be applicable to be no more than in the mixed soil that 100 Ω and earth electrode squeeze into easily and use at soil resistivity.It lays convenient, and earth electrode and soil contact are big, and be safe and reliable, and economy is managed entirely.
Description of drawings
Fig. 1 is a yi word pattern bonded earth electrode structure diagram of the present utility model.
Fig. 2 is the structure diagram of star-like bonded earth electrode.
Fig. 3 is the structure diagram of cross bonded earth electrode.
Fig. 4 is the structure diagram of fish bone well bonded earth electrode.
Embodiment
A kind of bonded earth electrode of electric equipment, be provided with the horizontal grounding utmost point 2 and vertical grounding electrode 3, upwards be provided with the connection lead-in wire at the center of the horizontal grounding utmost point 2, some vertical grounding electrodes 3 are the center to connect lead-in wire, the bottom that is arranged on the horizontal grounding utmost point 2 of symmetry, distance is 2.4～6.0 meters between the adjacent vertical grounding electrode 3.The described horizontal grounding utmost point 2 be yi word pattern.The described horizontal grounding utmost point 2 is provided with a main body, is symmetrical some branches, the formation of being provided with of axle with the main body.The vertical junction terrain adopts the Zinc-coated angle steel of 50mm*50mm*5mm, length is decided according to soil property, generally between 1.2m-3.0m, the spacing of vertical grounding electrode is 2.5m-6.0m, the horizontal grounding body adopts the zinc-coated flat steel sheet of 40mm*4mm, length is decided according to the resistance value of former transformer, and weld carries out preservative treatment.The resistance measurement value need increase the physics resistance reducing agent at the transformer grounding body more than 20 ohm.
Claims (3)
1. the bonded earth electrode of an electric equipment, it is characterized in that: be provided with the horizontal grounding utmost point (2) and vertical grounding electrode (3), upwards be provided with connection lead-in wire (1) at the center of the horizontal grounding utmost point (2), some vertical grounding electrodes (3) are the center to connect lead-in wire (1), the bottom that is arranged on the horizontal grounding utmost point (2) of symmetry, distance is 2.4～6.0 meters between the adjacent vertical grounding electrode (3).
2. the bonded earth electrode of electric equipment according to claim 1, it is characterized in that: the described horizontal grounding utmost point (2) is a yi word pattern, star-like or cross.
3. the bonded earth electrode of electric equipment according to claim 1, it is characterized in that: the described horizontal grounding utmost point (2) is provided with a main body, and being that axle is symmetrical with the main body is provided with some branches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200372112U CN201243091Y (en) | 2008-06-27 | 2008-06-27 | Composite grounding body for electrical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200372112U CN201243091Y (en) | 2008-06-27 | 2008-06-27 | Composite grounding body for electrical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201243091Y true CN201243091Y (en) | 2009-05-20 |
Family
ID=40716382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200372112U Expired - Lifetime CN201243091Y (en) | 2008-06-27 | 2008-06-27 | Composite grounding body for electrical equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201243091Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412623A (en) * | 2010-09-26 | 2012-04-11 | 吴兴杰 | Ground screen comprehensive monitoring and intelligent maintenance system |
| CN102983420A (en) * | 2012-12-12 | 2013-03-20 | 重庆大学 | Grounding device for reducing shock ground impedance of electric transmission line tower |
| CN103036076A (en) * | 2012-12-25 | 2013-04-10 | 宁波电业局 | Device and method for reducing impulse grounding impedance value |
| CN103259104A (en) * | 2013-06-07 | 2013-08-21 | 国家电网公司 | Well group grounding net |
| CN103457045A (en) * | 2013-09-11 | 2013-12-18 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Multi-current scattering arm star-shaped grounding electrode topological structure |
| CN103474791A (en) * | 2013-09-29 | 2013-12-25 | 国家电网公司 | Radial grounding device with impact impedance reducing function |
| CN103560473A (en) * | 2013-10-19 | 2014-02-05 | 国家电网公司 | Simple tower lightning arrester |
| CN103825113A (en) * | 2014-03-17 | 2014-05-28 | 国家电网公司 | Grounding device for high-soil resistivity region |
| CN105356079A (en) * | 2014-08-22 | 2016-02-24 | 中国甘肃国际经济技术合作总公司 | Intensive grounding electrode and installation method thereof |
| CN111092404A (en) * | 2019-11-25 | 2020-05-01 | 北京宇航系统工程研究所 | Ground moving type direct lightning protection system |
-
2008
- 2008-06-27 CN CNU2008200372112U patent/CN201243091Y/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102412623A (en) * | 2010-09-26 | 2012-04-11 | 吴兴杰 | Ground screen comprehensive monitoring and intelligent maintenance system |
| CN102983420A (en) * | 2012-12-12 | 2013-03-20 | 重庆大学 | Grounding device for reducing shock ground impedance of electric transmission line tower |
| CN103036076B (en) * | 2012-12-25 | 2016-02-03 | 宁波电业局 | A kind of reduction Transient grounding resistance value device and method |
| CN103036076A (en) * | 2012-12-25 | 2013-04-10 | 宁波电业局 | Device and method for reducing impulse grounding impedance value |
| CN103259104A (en) * | 2013-06-07 | 2013-08-21 | 国家电网公司 | Well group grounding net |
| CN103259104B (en) * | 2013-06-07 | 2015-10-28 | 国家电网公司 | A kind of gang of wells ground network |
| CN103457045A (en) * | 2013-09-11 | 2013-12-18 | 中国南方电网有限责任公司超高压输电公司检修试验中心 | Multi-current scattering arm star-shaped grounding electrode topological structure |
| CN103474791A (en) * | 2013-09-29 | 2013-12-25 | 国家电网公司 | Radial grounding device with impact impedance reducing function |
| CN103560473A (en) * | 2013-10-19 | 2014-02-05 | 国家电网公司 | Simple tower lightning arrester |
| CN103825113A (en) * | 2014-03-17 | 2014-05-28 | 国家电网公司 | Grounding device for high-soil resistivity region |
| CN105356079A (en) * | 2014-08-22 | 2016-02-24 | 中国甘肃国际经济技术合作总公司 | Intensive grounding electrode and installation method thereof |
| CN105356079B (en) * | 2014-08-22 | 2018-05-15 | 中国甘肃国际经济技术合作总公司 | Intensive earthing pole and installation method |
| CN111092404A (en) * | 2019-11-25 | 2020-05-01 | 北京宇航系统工程研究所 | Ground moving type direct lightning protection system |
| CN111092404B (en) * | 2019-11-25 | 2021-10-01 | 北京宇航系统工程研究所 | Ground moving type direct lightning protection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU ELECTRIC POWER COMPANY STATE ELECTRIC NET Effective date: 20130227 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130227 Address after: 222000 No. 13 happy road, Sinpo District, Jiangsu, Lianyungang Patentee after: Lianyungang Power Supply Company of Jiangsu Electric Power Company Patentee after: Jiangsu Electric Power Company Patentee after: State Grid Corporation of China Address before: 222000 No. 13 happy road, Sinpo District, Jiangsu, Lianyungang Patentee before: Lianyungang Power Supply Company of Jiangsu Electric Power Company |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090520 |
|
| CX01 | Expiry of patent term |