CN204045751U - The vertical dark earthing device in power distribution station - Google Patents
The vertical dark earthing device in power distribution station Download PDFInfo
- Publication number
- CN204045751U CN204045751U CN201420484422.6U CN201420484422U CN204045751U CN 204045751 U CN204045751 U CN 204045751U CN 201420484422 U CN201420484422 U CN 201420484422U CN 204045751 U CN204045751 U CN 204045751U
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- China
- Prior art keywords
- vertical
- earthing device
- copper
- power distribution
- earth
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- 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.)
- Expired - Fee Related
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052802 copper Inorganic materials 0.000 claims abstract description 18
- 239000010949 copper Substances 0.000 claims abstract description 18
- 239000007787 solid Substances 0.000 claims abstract description 11
- 238000005259 measurement Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 13
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 230000001603 reducing effect Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 239000002689 soil Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The utility model discloses the vertical dark earthing device in a kind of power distribution station, it solve prior art and there is the problems such as difficulty of construction is large, useful life is short, it is characterized in that: (1) selects appropriate location below controller switching equipment, horizontal direction breaks ground area control within the scope of 1-2m, use the vertical earth rod of copper facing as Grounding Grids, the vertical earth rod of copper facing vertically can be driven underground by continued access pipe (3) connection electric drill by many solid barred bodies (2), and most advanced and sophisticated (4) in depth descend more than 10m; (2) vertical for the many copper facing of squeezing into ground earth rod top is concatenated into one by grounding connection folder (7) copper-plated ground line (5), and sealing is wound around to connection folder (7) anticorrosion band (6); (3) earth resistance tester is utilized to carry out earth resistance according to relevant code.The advantages such as have and break ground without the need to large area, save construction space, resistance reducing effect is obvious, corrosion-resistant, the life-span is long, saving maintenance cost, have application value widely.
Description
Technical field
The utility model belongs to power construction auxiliary equipment, relates in particular to the vertical dark earthing device in a kind of power distribution station.
Background technology
Controller switching equipment earth work commonly uses construction method to be had: 1, extend horizontal grounding objects, expands horizontal grounding web area; 2, extend Grounding Grids, bury vertical dark ground connection in fact.Extension horizontal grounding net needs large area to break ground construction, and every extension one step all will face larger constructional difficulties and risk.Extending Grounding Grids generally adopts steel as Grounding Grids, and the 10m that is driven underground by angle steel is almost not achievable task.The zinc-plating material that tradition earth work uses is generally tile (being aided with shorter vertical run) in topsoil, and by such environmental effects, just corrode in various degree after 3-5 and even rupture, service life is shorter.
Utility model content
The purpose of this utility model be for market provide that a kind of structure is simple, easy construction, long service life, saving construction space the vertical dark earthing device in power distribution station.
The technical solution of the utility model is: it comprises the formations such as solid barred body, continued access pipe, tip, copper-plated ground line and grounding connection folder, solid barred body and continued access pipe are copper facing steel and are made, solid barred body front end is provided with tip, top can connect driving head, between be interconnected to be driven underground by continued access pipe and reach more than 10m, the quantity of the vertical earth rod of copper facing is determined according to actual measurement resistance, be connected by copper-plated ground line by connecting folder each other, lead-out wire is connected with power distribution station circuit ground.Specific construction step is as follows:
(1) below controller switching equipment, appropriate location is selected, horizontal direction breaks ground area control within the scope of 1-2m, use the vertical earth rod of copper facing as Grounding Grids, the vertical earth rod of copper facing vertically can be driven underground by the connection of continued access pipe by many solid barred bodies, more than 10m is in depth descended in tip, and determines according to actual measurement resistance the quantity squeezing into the vertical earth rod of copper facing;
(2) vertical for the many copper facing of squeezing into ground earth rod top is concatenated into one by grounding connection folder copper-plated ground line, and sealing is wound around to connection folder anticorrosion band;
(3) earth resistance tester is utilized to carry out earth resistance according to relevant code.When measurement of Grounding Resistance, the distance at electric current pole and tested earthing device edge should be 4 ~ 5 times of tested earthing device maximum diagonal length, and the distance of voltage pole is selected in about 0.618 times of the distance at electric current pole and tested earthing device edge and locates.
The beneficial effects of the utility model are: (1) vertical dark ground connection uses vertical earth rod as Grounding Grids, vertical earth rod can one continue one and be vertically driven underground, vertical direction only needs to break an aperture just in depth can descend more than 10m, horizontal direction breaks ground area control within the scope of 1-2m, by the portable deep drilling equipment coordinative construction of advanced person, no matter how complicated geological conditions is, all can ensure that Grounding Grids in depth descends more than 10m, there is the unrivaled huge advantage of traditional construction mode.(2) close contact low-resistance soil, resistance reducing effect is obvious.Because of the impact of lithic drainage, deep soil resistivity is far below topsoil resistivity, and vertical dark ground connection, can guarantee that Grounding Grids touches the lower deep soil of soil resistivity, reach desirable resistance reducing effect.Meanwhile, deep soil is subject to the influence degree of environmental factor far below topsoil, and after vertical dark grounding construction completes, the grounding resistance obtained is more stable, even if environmental change also can keep for a long time, and can not saltus step.(3) corrosion-resistant, long-life, saving maintenance cost.The main material of all ground connection all uses copper facing product (wherein the auxiliary material of part is fine copper product), the performance index such as its electric conductivity, thermal stability, corrosion resistance are all far away higher than traditional earthing material, earthing effect is more stable, service life is longer, and can really realize " non-maintaining ", significantly save because of maintenance or renovate the maintenance cost brought.
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Accompanying drawing explanation
Fig. 1 is that the vertical earth rod of the utility model connects ground wire schematic diagram;
Fig. 2 is the vertical earth rod connection diagram of the utility model;
Fig. 3 is that the utility model utilizes earth resistance tester to test earth resistance schematic diagram.
In figure: 1 is ground, 2 is solid barred body, and 3 is continued access pipe, and 4 is most advanced and sophisticated, and 5 is copper-plated ground line, and 6 is anticorrosion band, and 7 for connecting folder.
Embodiment
As shown in Figure 1 and Figure 2, utilize and press from both sides 7 by solid barred body 2, continued access pipe 3, the most advanced and sophisticated 4 vertical earth rods of copper facing formed with driving head and copper-plated ground line 5 and grounding connection to carry out tool for mounting body construction step by vertical earthing method deeply as follows:
(1) below controller switching equipment, appropriate location is selected, horizontal direction breaks ground area control within the scope of 1-2m, use the vertical earth rod of copper facing as Grounding Grids, the vertical earth rod of copper facing vertically can be driven underground by continued access pipe 3 connection electric drill by many solid barred bodies 2, most advanced and sophisticated 4 in depth descend more than 10m, and determine according to actual measurement resistance the quantity squeezing into the vertical earth rod of copper facing;
(2) vertical for the many copper facing of squeezing into ground earth rod top is concatenated into one by grounding connection folder (7) copper-plated ground line 5, and sealing is wound around to connection folder 7 anticorrosion band 6;
(3) earth resistance tester is utilized to carry out earth resistance according to relevant code.
Soil superficial drying in place during test, should carry out at good weather, and relative air humidity is general not higher than 80%; Test should be carried out when dry season and soil are not freezed as far as possible, not in Ying Lei, rain, snow or rain, to carry out immediately after snow.Before the impedance ground of test shaft tower, all down conductors of tested shaft tower should be removed, the electrical connection of shaft tower tower body and earthing device is all disconnected.On bar, distribution transformer should have a power failure, and disconnects the connection of step down side neutral point and earthing device.As shown in Figure 3, when adopting earth resistance tester measurement of Grounding Resistance, the distance d at electric current pole and tested earthing device edge
cGshould be 4 ~ 5 times of tested earthing device maximum diagonal length, the distance d of voltage pole
pGd should be selected in
cG0.618 times place left and right.The voltage pole of test and electric current pole should be avoided to be arranged in above the ray of earthing device, and should not wiring parallel or equidirectional with the radiation extended line of earthing device; When finding that the measured value of earth resistance has significantly increase or reduces compared with test result in the past, the method for arranging of electrode should be changed, or increase the distance of electrode, retesting; Also should shorten earth electrode binding post C simultaneously as far as possible
1p
1and the wire length between earthing device; Voltage pole closely and not should insert more than 30cm in soil loosely.
The comparison sheet of vertical dark ground connection and conventional construction method
Utilize vertical dark grounding technology to carry out Grounding Network Reconstruction to three power distribution stations, before and after transformation, earth resistance is as following table:
| ? | Platform zone position | Earth resistance before transformation | Earth resistance after transformation |
| Platform district one | Level land | 13.19 | 2.09 |
| Platform district two | Mountain area | 32.1 | 3.71 |
| Platform district three | City | 17.26 | 2.02 |
Claims (2)
1. the vertical dark earthing device in power distribution station, it comprises solid barred body (2), continued access pipe (3), most advanced and sophisticated (4), copper-plated ground line (5) and grounding connection folder (7), it is characterized in that: solid barred body (2) and continued access pipe (3) are copper facing steel and are made, solid barred body (1) front end is provided with tip (4), top can connect driving head, between be interconnected to be driven underground by continued access pipe (3) and reach more than 10m, the quantity of the vertical earth rod of copper facing is determined according to actual measurement resistance, by connecting folder (7), copper-plated ground line (5) is connected each other, lead-out wire is connected with power distribution station circuit ground.
2. the vertical dark earthing device in power distribution station according to claim 1, it is characterized in that: described actual measurement resistance adopts earth resistance tester to measure, during measurement of Grounding Resistance, the distance at electric current pole and tested earthing device edge should be 4 ~ 5 times of tested earthing device maximum diagonal length, and the distance of voltage pole is selected in about 0.618 times of the distance at electric current pole and tested earthing device edge and locates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420484422.6U CN204045751U (en) | 2014-08-21 | 2014-08-21 | The vertical dark earthing device in power distribution station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420484422.6U CN204045751U (en) | 2014-08-21 | 2014-08-21 | The vertical dark earthing device in power distribution station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204045751U true CN204045751U (en) | 2014-12-24 |
Family
ID=52246381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420484422.6U Expired - Fee Related CN204045751U (en) | 2014-08-21 | 2014-08-21 | The vertical dark earthing device in power distribution station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204045751U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109713540A (en) * | 2019-01-02 | 2019-05-03 | 湖南长高售电有限公司 | A kind of vertical deep grounding resistance-reducing method of grid equipment grounded screen copper plated steel |
-
2014
- 2014-08-21 CN CN201420484422.6U patent/CN204045751U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109713540A (en) * | 2019-01-02 | 2019-05-03 | 湖南长高售电有限公司 | A kind of vertical deep grounding resistance-reducing method of grid equipment grounded screen copper plated steel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20190821 |