CN207818923U - A kind of longitudinal direction continuation type grounded screen - Google Patents
A kind of longitudinal direction continuation type grounded screen Download PDFInfo
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- CN207818923U CN207818923U CN201721711328.XU CN201721711328U CN207818923U CN 207818923 U CN207818923 U CN 207818923U CN 201721711328 U CN201721711328 U CN 201721711328U CN 207818923 U CN207818923 U CN 207818923U
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Abstract
The utility model discloses a kind of longitudinal continuation type grounded screens, if including the longitudinally disposed ground wire of dried layer, connecting line is mutually equipped between the ground wire, top layer ground line draws several ground leads to electrical equipment grounding terminal, and bottom layer ground line connects several earthing poles.It is applied to not lay horizontal grounding net or because floor space is too small, even if the power engineering of ideal earthing effect can not be obtained by having laid conventional levels earth mat and vertical grounding electrode etc. still；It is arranged along the longitudinal direction using enclosure wall or the deep basal pit of building surrounding, grounded screen, soil longitudinal space is utilized in maximum efficiency, increases ground connection web area, effectively reduces ground resistance.Suitable for the Phase of Electric Power Projects of small area, it is also applied for existing power engineering transformation, it is simple in structure, easy to implement, construction cost is low, effectively overcomes the shortcomings of that conventional scheme ground resistance is bigger than normal, both it can individually implement, and can also be used as the supplement of horizontal grounding net, and reinforce earthing effect；With very strong practicability and wide applicability.
Description
Technical field
The present invention relates to a kind of grounded screens, and in particular to a kind of longitudinal direction continuation type grounded screen.
Background technology
Earthed system is the important system in power engineering, is played during the safe operation of substation considerable
Effect.
Integrated automation device in substation requires grounded screen ground potential liter to must not exceed certain numerical value with Microcomputer Protection,
Production run department also requires to reduce earthed system step voltage, ground resistance and contact voltage as possible with maintenance department.It is connecing
Under conditions of ground material and soil resistivity are certain, the effect of earthed system is mainly related with the area of grounded screen.But with city
City's construction land day is becoming tight, and the power engineering arrangement such as substation is more and more compacter, and floor space is smaller and smaller, conventional grounded screen
Area reduce therewith.The indexs such as earthed system step voltage, ground resistance and contact voltage are difficult to meet the requirements at this time.
When earthed system is unsatisfactory for requiring, deep well grounding electrode is generally used, ion grounding electrode, soil removal and replacement, explosion, draws connect outside
Drop resistance is implemented on the methods of ground, but the above method or cost are too high or timeliness is too short, and the engineering especially small in floor space
In be unable to reach desired effect.
Invention content
To solve the deficiencies in the prior art, it is longitudinal empty using soil that the purpose of the present invention is to provide a kind of maximum efficiencies
Between, increase ground connection web area, effectively reduces longitudinal continuation type grounded screen of ground resistance.
In order to realize that above-mentioned target, the present invention adopt the following technical scheme that：
A kind of longitudinal direction continuation type grounded screen, if including the dried layer that is placed in enclosure wall or the deep basal pit of building surrounding longitudinally set
The ground wire set, connecting line is mutually equipped between the ground wire, and top layer ground line draws several ground leads to electrical equipment
Ground terminal, bottom layer ground line connect several earthing poles.
Above-mentioned ground wire is respectively at ring-like and/or net type.
Above-mentioned ground wire is 3 layers.
Above-mentioned ground wire is mutually parallel.
The interlamellar spacing of above-mentioned ground wire is 3-4m, preferably 3m.
Above-mentioned top layer ground line-spacing 0.8m from the ground.
Above-mentioned ground connection extremely vertical grounding electrode.
Above-mentioned ground lead connects with the node of top layer ground line, the node of connecting line and ground wire and earthing pole and bottom
The node of ground wire is in same ordinate.
The surface layer anticorrosive coating of above-mentioned ground lead.
Above-mentioned any longitudinal continuation type grounded screen, is coupled horizontal grounding net.
The invention has the beneficial effects that：
A kind of longitudinal continuation type grounded screen of the present invention, applied to can not lay horizontal grounding net or because of floor space too
It is small, even if the power engineering of ideal earthing effect can not be obtained by having laid conventional levels earth mat and vertical grounding electrode etc. still；It utilizes
The deep basal pit of enclosure wall or building surrounding, grounded screen arrange that soil longitudinal space is utilized in maximum efficiency, increases along the longitudinal direction
Add ground connection web area, effectively reduces ground resistance.
A kind of longitudinal continuation type grounded screen of the present invention, is suitable for the Phase of Electric Power Projects of small area, is also applied for existing
Power engineering transformation, simple in structure, easy to implement, construction cost is low, effectively overcomes conventional scheme ground resistance bigger than normal
Deficiency both can individually be implemented, and the supplement of horizontal grounding net is can also be used as, and reinforce earthing effect；With very strong practicability
And wide applicability.
Description of the drawings
Fig. 1 is the structural schematic diagram of longitudinal continuation type grounded screen of the present invention.
The meaning marked in attached drawing is as follows：1, bottom layer ground net 1,2, vertical grounding electrode 2,3, middle level grounded screen 3,4, top layer
Grounded screen 4,5, connecting line 5,6, ground lead 6.
Specific implementation mode
Specific introduce is made to the present invention below in conjunction with the drawings and specific embodiments.
A kind of longitudinal direction continuation type grounded screen, is made of, including bottom 3 layers of ring grounded screen that is longitudinally disposed and being mutually parallel
Grounded screen 1, middle level grounded screen 3 and top layer ground net 4；It is interconnected by connecting line 5 between each layer grounded screen, top layer ground line
Several equipment ground leads 6 are drawn, bottom layer ground line connects several vertical grounding electrodes 2.
When construction,
Enclosure wall in Process of Engineering Construction or in the deep basal pit of building surrounding lays bottom layer ground net 1, vertical successively
Earthing pole 2, middle level grounded screen 3, upper layer grounded screen, and be complete longitudinal continuation type by upper and lower 5 unicom of grounded screen connecting line
Grounded screen, electrical equipment are connected to by ground lead 6 with grounded screen.
It is preferably 3m to be grounded interlamellar spacing.
Preferably, the node, connecting line 5 and the node and earthing pole of ground wire and bottom of ground lead 6 and top layer ground line
The node of layer ground wire, is in same ordinate.
The surface layer anticorrosive coating of ground lead 6 especially apart from 0.8 meter of ground to ground segment, and draws ground segment.It is logical
The 6 outer layer anticorrosive coating of ground lead near the ground section is crossed, its service life is extended and keeps its earthing effect.
The material of ground wire is preferably steel or copper material, reinforces earthing effect.
For enclosure wall if single side, modifiable ring grounded screen is the longitudinally disposed ground wire being mutually parallel.
It, can be by the longitudinal continuation type grounded screen and horizontal grounding net of the present invention meanwhile if construction ground separately sets horizontal grounding net
It is coupled as one, expands conductive capability, improve security performance.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way above-described embodiment, all to be obtained by the way of equivalent substitution or equivalent transformation
Technical solution is all fallen in protection scope of the present invention.
Claims (10)
1. a kind of longitudinal direction continuation type grounded screen, which is characterized in that if including being placed in the deep basal pit of enclosure wall or building surrounding
The longitudinally disposed ground wire of dried layer, connecting line is mutually equipped between the ground wire, and top layer ground line draws several ground leads
To electrical equipment grounding terminal, bottom layer ground line connects several earthing poles.
2. a kind of longitudinal continuation type grounded screen according to claim 1, which is characterized in that the ground wire is respectively at ring-like
And/or net type.
3. a kind of longitudinal continuation type grounded screen according to claim 1, which is characterized in that the ground wire is mutually parallel.
4. a kind of longitudinal continuation type grounded screen according to claim 1, which is characterized in that the ground wire is divided into along longitudinal direction
3 layers.
5. a kind of longitudinal continuation type grounded screen according to claim 1, which is characterized in that the interlayer of the ground wire is longitudinal
Distance is 3-4m.
6. a kind of longitudinal continuation type grounded screen according to claim 1, which is characterized in that the top layer ground line-spacing is liftoff
Face 0.8m.
7. a kind of longitudinal continuation type grounded screen according to claim 1, which is characterized in that the extremely vertical ground connection of the ground connection
Pole.
8. a kind of longitudinal continuation type grounded screen according to claim 1, which is characterized in that the ground lead connects with top layer
The node of the node of ground wire, the node of connecting line and ground wire and earthing pole and bottom layer ground line is in same ordinate.
9. a kind of longitudinal continuation type grounded screen according to claim 1, which is characterized in that the surface layer of the ground lead applies
Cover erosion resistant coating.
10. according to a kind of any longitudinal continuation type grounded screens of claim 1-9, which is characterized in that be coupled horizontal grounding
Net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721711328.XU CN207818923U (en) | 2017-12-11 | 2017-12-11 | A kind of longitudinal direction continuation type grounded screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721711328.XU CN207818923U (en) | 2017-12-11 | 2017-12-11 | A kind of longitudinal direction continuation type grounded screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207818923U true CN207818923U (en) | 2018-09-04 |
Family
ID=63331699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721711328.XU Active CN207818923U (en) | 2017-12-11 | 2017-12-11 | A kind of longitudinal direction continuation type grounded screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207818923U (en) |
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2017
- 2017-12-11 CN CN201721711328.XU patent/CN207818923U/en active Active
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