CN106450824A - Grounding grid - Google Patents
Grounding grid Download PDFInfo
- Publication number
- CN106450824A CN106450824A CN201610912758.1A CN201610912758A CN106450824A CN 106450824 A CN106450824 A CN 106450824A CN 201610912758 A CN201610912758 A CN 201610912758A CN 106450824 A CN106450824 A CN 106450824A
- Authority
- CN
- China
- Prior art keywords
- backbone network
- pole
- grounded screen
- earthing pole
- earthing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
Abstract
The invention discloses a grounding grid, and belongs to the technical field of electrical application. The grounding grid comprises a backbone network, and at least one group of grounding electrodes. Each group of electrodes comprises at least one grounding electrode. At least one group of grounding electrodes are connected with different positions of the backbone network respectively under the backbone network. The backbone network is positioned under the buildings, and is insulated from the peripheral soils. The grounding grid discharges through the grounding electrodes. The backbone network is provided with at least one connection point, which is used for the connection with the electrical equipment. Each electrode of at least one group of electrodes is positioned in the grounding well. Through the placement of at least one group of electrodes under the backbone network, and through the placement of each electrode of at least one group of electrodes in the grounding well, and through the insulation of the backbone network from the peripheral soils, the grounding grid can only discharge through the grounding electrodes in the grounding well, which means the discharging happens in the deep underground, thus avoiding the creation of step voltage on the ground, bringing no hazards to the pedestrians, and enhancing the safety of the grounding grid.
Description
Technical field
The present invention relates to electric field, particularly to a kind of grounded screen.
Background technology
In daily life, either electrical equipment or superstructure is required for being drained to ground by grounded screen by electric current
Under, thus completing to discharge, thereby protect equipment safety and personal safety.
In the prior art, generally the metal grill of double-edged fine-toothed comb type is arranged on 0.8 meter of underground of building as grounded screen, and
On metal grill, setting tie point is connected with the equipment in building, and arranges Grounding Grids on metal grill, thus will
In building, the electric current of equipment is drained to Grounding Grids by metal grill, is released electric current by metal grill and Grounding Grids
Put to ground and deep under ground, form step voltage on ground simultaneously and (enter the pedestrian's bipod around place positioned at earth current
Between voltage), thus complete discharge.
During realizing the present invention, inventor finds that prior art at least has problems with：
During discharging by metal grill and Grounding Grids, step voltage can be formed on ground, on ground
Pedestrian cause the danger got an electric shock, security is relatively low.
Content of the invention
In order to solve problem of the prior art, embodiments provide a kind of grounded screen.Described technical scheme is as follows：
On the one hand, there is provided a kind of grounded screen, described grounded screen includes backbone network and least one set earthing pole, every group of ground connection
Pole includes at least one earthing pole, and described least one set earthing pole is connected on the diverse location of described backbone network, described
Least one set earthing pole is respectively positioned on the lower section of described backbone network；
Described backbone network is arranged on below building, and described backbone network is insulated with the soil of surrounding, and described grounded screen passes through institute
State the electric discharge of least one set earthing pole；
At least one tie point is provided with described backbone network, for being connected with electrical equipment；
Each earthing pole in described least one set earthing pole is arranged in ground connection well.
Optionally, described backbone network is matrix pattern backbone network, and described least one set earthing pole includes five groups of earthing poles, respectively
It is arranged on the center of described backbone network and four corners.
Optionally, described every group of earthing pole includes seven earthing poles, described seven earthing poles include a center pole and
Six satellite poles；
Described six satellites are extremely equidistantly circumferentially arranged around described center pole.
Optionally, between described center pole and arbitrary satellite pole distance for 3-5 rice.
Optionally, each earthing pole is embedded in the ground connection well that depth is more than 3 meters.
Optionally, described backbone network is in the trench being arranged on building lower section by the way of support.
Optionally, the outer surface of described backbone network is provided with insulating barrier.
Optionally, described backbone network is zinc-coated flat steel sheet or red copper cable.
The beneficial effect that technical scheme provided in an embodiment of the present invention is brought is：
By arranging least one set earthing pole below backbone network, each earthing pole in least one set earthing pole is respectively provided with
In ground connection well, and backbone network and the soil of surrounding is made to insulate so that grounded screen can only be entered in ground connection well by earthing pole
Row electric discharge, that is to say and discharged in deep under ground, it is to avoid forms step voltage on ground, will not the pedestrian on ground be made
Become dangerous, improve the security of grounded screen.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, will make to required in embodiment description below
Accompanying drawing be briefly described it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of structural representation of grounded screen provided in an embodiment of the present invention；
Fig. 2 is a kind of structural representation of grounded screen provided in an embodiment of the present invention；
Fig. 3 is the structural representation of one group of earthing pole in a kind of grounded screen provided in an embodiment of the present invention.
Specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Fig. 1 is a kind of structural representation of grounded screen provided in an embodiment of the present invention, and referring to Fig. 1, this grounded screen includes：Bone
Dry net 10 and least one set earthing pole 20, every group of earthing pole 20 includes at least one earthing pole 20.
Wherein, the material that backbone network 10 is adopted can be zinc-coated flat steel sheet, red copper cable, copper strips or copper bar, the present invention
Embodiment does not limit to this.
And, this least one set earthing pole 20 is connected on the diverse location of backbone network 10, and each earthing pole 20 can
Think drainage type earthing pole or other earthing poles, the embodiment of the present invention does not limit to this.
Specifically, backbone network 10 is arranged on below building, and is provided with least one tie point on this backbone network 10, should
Backbone network 10 is also connected with least one set earthing pole 20, and every group of earthing pole 20 is arranged on the lower section of backbone network 10.
Wherein, the electrical equipment in building can be connected by the down conductor of electrical equipment to the connection of backbone network 10
Point, thus be connected with this backbone network 10.And, it is separated by several meters between two neighboring tie point, between two neighboring tie point
Distance can be configured according to the size of backbone network 10, and the embodiment of the present invention does not limit to this.
And, the section of backbone network 10 needs to meet certain requirements, and prevents the electric current flowing through backbone network 10 excessive, thus right
Backbone network 10 causes to damage.For example, the maximum current allowing to flow through of backbone network 10 have to be larger than all electrical equipments in building
The summation of earth current.
In addition, least one set earthing pole 20 is connected to backbone network 10, can will be every in least one set earthing pole 20
Individual earthing pole 20 is arranged in the ground connection well pre-setting.Preferably, earthing pole 20 can be embedded in ground connection well, and often
The depth of the embedding ground connection well of individual earthing pole 20 is typically larger than 3 meters.
Wherein it is possible to arrange Inspection and maintenance opening and cover plate on each ground connection well, so as to ground connection in subsequent process
Net is safeguarded.
Further, the bottom of this ground connection well be water, mid portion be soil, top be air, then each earthing pole 20
Top contact with soil with air contact, mid portion, end is contacted with water, thus by least one earthing pole 20 and soil
Earth contacts with water, completes to discharge in deep under ground.
And, when grounded screen is for a long time after underground buried, because earthing pole 20 is contacted with soil and water, may be by
Corrosion, then can change to earthing pole 20, thus ensure that the discharge effect of grounded screen in ground connection well.
It should be noted that when backbone network 10 is arranged on building lower section, the soil of backbone network 10 and surrounding insulate so that
Grounded screen, can only be grounded by the least one set being connected with backbone network 10 it is impossible to be discharged by backbone network 10 when discharging
Discharging in pole 20, forms the problem of step voltage thus avoiding grounded screen and discharging in earth's surface.It is additionally, since backbone network 10 and soil
Insulation, will not be contacted with soil or water, then be not in the situation of galvano-cautery or chemical attack, increased making of backbone network 10
Use the life-span.
Wherein it is possible to it is also possible in backbone in the trench that by the way of support, backbone network 10 is arranged on building lower section
The outer surface setting insulating barrier of net 10, to ensure the soil insulation of backbone network 10 and surrounding, can also adopt its other party certainly
Formula ensures the soil insulation of backbone network 10 and surrounding, and the embodiment of the present invention does not limit to this.
In sum, grounded screen provided in an embodiment of the present invention, by arranging least one set earthing pole below backbone network,
Each earthing pole in least one set earthing pole is arranged at being grounded in well, and makes the soil insulation of backbone network and surrounding, makes
Grounded screen can only be discharged in ground connection well by earthing pole, that is to say and discharged in deep under ground, it is to avoid on ground
Face forms step voltage, will not cause danger to the pedestrian on ground, improve the security of grounded screen.
In another embodiment, as shown in Fig. 2 this backbone network 10 can be matrix pattern backbone network 10, and this least one set
Earthing pole 20 can include five groups of earthing poles 20, is separately positioned on the center of this backbone network 10 and four corners.
Specifically, backbone network 10 could be arranged to rectangle, circular or other shapes, and superstructure is generally rectangular,
Therefore generally backbone network 10 is set to rectangle, and the area of backbone network 10 is consistent with the floor space of superstructure.Enter one
Step ground, is connected with backbone network 10 for the ease of the electrical equipment in building, backbone network 10 can be set to matrix pattern backbone network
10.
Further, since when grounded screen is discharged, the electric current in backbone network 10 is high frequency electric, and high frequency electric can be
The phenomenon of current reflux in the junction of backbone network 10 and corner, also can produce collection skin phenomenon.Accordingly, it would be desirable in field word
The center of shape backbone network 10 and four corner settings are respectively provided with one group of earthing pole 20, thus by each group earthing pole 20 to electricity
Stream carries out drainage electric discharge.
Certainly, the quadrilateral frame of matrix pattern backbone network 10 there is also junction, i.e. the central cross of matrix pattern backbone 10
The junction of the key framework with surrounding four side of shape, therefore can also be in each connection of the quadrilateral frame of matrix pattern backbone network 10
Place is also provided with one group of earthing pole 20, and the embodiment of the present invention does not limit to this.
In another embodiment, as shown in figure 3, seven earthing poles 20 can be included in this every group of earthing pole 20, this seven
A center pole 201 and six satellite poles 202 can be included, the top of six satellite poles 202 is all and center pole in earthing pole 20
201 top connects.
Wherein, six satellite poles 202 are equidistantly circumferentially arranged around center pole 201, that is to say a center pole 201
Arranged in cellular with six satellite poles 202, and a center pole 201 and six satellite poles 202 are located at same water
In plane.
It should be noted that distance can be determined according to the conductance of soil between this center pole 201 and arbitrary satellite pole 202
Fixed, the conductance of soil is higher, and the distance between center pole 201 and satellite pole 202 are then less, usual center pole 201 and satellite
The distance between pole 202 scope is 3-5 rice naturally it is also possible to be other length, and the embodiment of the present invention does not limit to this.
Above-mentioned all optional technical schemes, can be using the alternative embodiment arbitrarily combining to form the present invention, and here is no longer
Repeat one by one.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (8)
1. a kind of grounded screen is it is characterised in that described grounded screen includes backbone network and least one set earthing pole, every group of earthing pole bag
Include at least one earthing pole, described least one set earthing pole is connected on the diverse location of described backbone network, described at least
One group of earthing pole is respectively positioned on the lower section of described backbone network；
Described backbone network is arranged on below building, the soil insulation of described backbone network and surrounding, described grounded screen pass through described extremely
Few one group of earthing pole electric discharge；
At least one tie point is provided with described backbone network, for being connected with electrical equipment；
Each earthing pole in described least one set earthing pole is arranged in ground connection well.
2. grounded screen according to claim 1 it is characterised in that described backbone network be matrix pattern backbone network, described at least
One group of earthing pole includes five groups of earthing poles, is separately positioned on the center of described backbone network and four corners.
3. grounded screen according to claim 1 is it is characterised in that described every group of earthing pole includes seven earthing poles, institute
State seven earthing poles and include a center pole and six satellite poles；
Described six satellites are extremely equidistantly circumferentially arranged around described center pole.
4. grounded screen according to claim 3 it is characterised in that between described center pole and arbitrary satellite pole distance be
3-5 rice.
5. grounded screen according to claim 1 is it is characterised in that each earthing pole is embedded in the ground connection that depth is more than 3 meters
In well.
6. grounded screen according to claim 1 is it is characterised in that described backbone network is arranged on building by the way of support
In the trench of lower section.
7. grounded screen according to claim 1 is it is characterised in that the outer surface of described backbone network is provided with insulating barrier.
8. grounded screen according to claim 1 is it is characterised in that described backbone network is zinc-coated flat steel sheet or red copper cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610912758.1A CN106450824B (en) | 2016-10-19 | 2016-10-19 | Grounded screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610912758.1A CN106450824B (en) | 2016-10-19 | 2016-10-19 | Grounded screen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106450824A true CN106450824A (en) | 2017-02-22 |
| CN106450824B CN106450824B (en) | 2018-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610912758.1A Active CN106450824B (en) | 2016-10-19 | 2016-10-19 | Grounded screen |
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| Country | Link |
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| CN (1) | CN106450824B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114167723A (en) * | 2020-11-27 | 2022-03-11 | 国网山东省电力公司电力科学研究院 | Method for establishing unified model of grounding grids of multiple transformer substations |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201533025U (en) * | 2009-10-16 | 2010-07-21 | 周明 | Electric power grounding grid |
| CN203277668U (en) * | 2013-06-07 | 2013-11-06 | 国家电网公司 | Well group grounding grid |
| CN204131109U (en) * | 2014-08-25 | 2015-01-28 | 中国大唐集团新能源股份有限公司 | A kind of lightning-protection device for fan |
| CN204696254U (en) * | 2015-07-03 | 2015-10-07 | 三峡大学 | A kind of Y type earthing device of wind turbine generator |
-
2016
- 2016-10-19 CN CN201610912758.1A patent/CN106450824B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201533025U (en) * | 2009-10-16 | 2010-07-21 | 周明 | Electric power grounding grid |
| CN203277668U (en) * | 2013-06-07 | 2013-11-06 | 国家电网公司 | Well group grounding grid |
| CN204131109U (en) * | 2014-08-25 | 2015-01-28 | 中国大唐集团新能源股份有限公司 | A kind of lightning-protection device for fan |
| CN204696254U (en) * | 2015-07-03 | 2015-10-07 | 三峡大学 | A kind of Y type earthing device of wind turbine generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114167723A (en) * | 2020-11-27 | 2022-03-11 | 国网山东省电力公司电力科学研究院 | Method for establishing unified model of grounding grids of multiple transformer substations |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106450824B (en) | 2018-12-18 |
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