CN202977774U - Power transformation screw rod clamping and tightening type ground wire - Google Patents
Power transformation screw rod clamping and tightening type ground wire Download PDFInfo
- Publication number
- CN202977774U CN202977774U CN 201220597506 CN201220597506U CN202977774U CN 202977774 U CN202977774 U CN 202977774U CN 201220597506 CN201220597506 CN 201220597506 CN 201220597506 U CN201220597506 U CN 201220597506U CN 202977774 U CN202977774 U CN 202977774U
- Authority
- CN
- China
- Prior art keywords
- main body
- binding clip
- sieve bar
- power transformation
- word main
- 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.)
- Expired - Lifetime
Links
- 230000009466 transformation Effects 0.000 title claims abstract description 16
- 230000005611 electricity Effects 0.000 claims description 15
- 230000000295 complement effect Effects 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
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Abstract
The present utility model relates to a power transformation screw rod clamping and tightening type ground wire which is connected with an equipment electric row, the ground wire comprises a screw rod, a U-shaped main body, a binding clip, a wiring nose and a grounding lead, the screw rod is successively connected with the U-shaped main body and the binding clip, one end of the wiring nose is connected with the U-shaped main body, the other end is connected with the grounding lead, and the binding clip is connected with the equipment electric row. Compared with the prior art, the ground wire is safe and reliable, and convenient to operate.
Description
Technical field
The utility model relates to a kind of power station earth connection, especially relates to the straight and-clamping fastening earth connection of a kind of power transformation sieve bar.
Background technology
When transformer station, power distribution station had a large number of users equipment interruption maintenance, the inadaptable electricity of the earth connection chuck of use was arranged spacing or is not met the electric power safety standard or the earth connection standard of grid company promulgation.In actual use, long-term Misuse does not reach other alternative chucks of safety requirements and standard on side direction electricity row, has caused potential safety hazard.
In operation, all kinds of electric pressure power transformation positions in storehouse are put and side direction because of electric ranking, and former earth connection chuck is the right angle operation mostly, is difficult to install, and causes the ground connection spacing inadequate.Sieve bar fastening-type chuck is right-angle type in existing various earth connection, and lever is lateral operation, is not suitable for the ground connection operation of existing power transformation, controller switching equipment.At present domestic is all that spring directly presss from both sides, and its ground connection opening varies in size, and causes clamping section contact-making surface cross-sectional area of conductor not reach grounding requirement.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of safe and reliable, easy to operate straight and-clamping fastening earth connection of power transformation sieve bar for the defective that overcomes above-mentioned prior art existence.
The purpose of this utility model can be achieved through the following technical solutions:
The straight and-clamping fastening earth connection of a kind of power transformation sieve bar, row is connected with the equipment electricity, described earth connection comprises sieve bar, U word main body, binding clip, wiring nose and earth lead, described sieve bar connects U word main body and binding clip successively, described wiring nose one end is connected with U word main body, the other end is connected with earth lead, and described binding clip is connected with equipment electricity row.
One end of described sieve bar is provided with screw thread, and described sieve bar is connected with U word main body by this screw thread, and the other end of described sieve bar is arranged with insulating case.
One end of described wiring nose is the hollow cylinder that the diameter of diameter and earth lead is complementary, and the other end of wiring nose is fixed on U word main body by set bolt.
Described binding clip is provided with the end that U word main body is connected rise spring and cam block, and described cam block is arranged in U word main body, and described binding clip is fixed on U word main body by two steady pins jointly with the spring that rises.
The maximum opening of described binding clip is 30mm.
Compared with prior art, the utlity model has following advantage:
1) safe and reliable: the utility model adopts aluminium matter binding clip, be no less than specified value with equipment electricity row's contacting section, have reliable contact-making surface and can bear thermal stress and the mechanical stress that the amount fault current produces, contact is good, greatly improved fail safe, the person, device security have been had very important meaning;
2) easy to operate: the straight and-clamping fastening earth connection of the utility model power transformation sieve bar can be installed on electricity row relatively easily, not only solved the position in storehouse problem with grounding of all kinds of distribution equipments, also can use this earth connection on the side direction electricity row equipment of any electric pressure simultaneously, also can operate from ground connection on 10 kv cable inlet wire bars.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is structure exploded perspective view of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
As Fig. 1-shown in Figure 2, the straight and-clamping fastening earth connection of a kind of power transformation sieve bar, row is connected with the equipment electricity, and described earth connection comprises sieve bar 1, U word main body 2, binding clip 3, wiring copper lug 4 and earth lead 5.One end of described sieve bar 1 is provided with screw thread, and described sieve bar 1 is connected with U word main body 2 by this screw thread, and the other end of sieve bar 1 is arranged with insulating case 10.
Described binding clip 3 one ends are connected with U word main body 2, the other end is clamped on equipment electricity row, the end that binding clip 3 is connected with U word main body 2 is provided with rise spring 7 and cam block 8, described cam block 8 is arranged in U word main body 2, and described binding clip 3 is fixed on U word main body 2 by two steady pins 8 jointly with the spring 7 that rises.The making material of binding clip is aluminium, and the maximum opening of binding clip can reach 30mm, can satisfy equipment electricity row thickness.Binding clip and equipment electricity row's contact area is (30*50) * 2=3000mm
2, be not less than specified value.The Tightening moment of binding clip is 14-28.
The hollow cylinder that the diameter that described wiring copper lug 4 one ends are diameter and earth lead 5 is complementary, the wiring copper lug connects earth lead 5 by this hollow cylinder; The other end of wiring copper lug 4 is fixed on U word main body 2 by set bolt 6.Wiring copper lug and earth lead tie point contacting section are not less than 25mm
2
The use capable of being combined of the straight and-clamping fastening earth connection of a plurality of power transformation sieve bars, can be installed to relatively easily on equipment electricity row, binding clip matches with electricity row's surface area and shape, reaches good contact effect, reliability is high, and the person, device security are had very important meaning.
Claims (5)
1. straight and-clamping fastening earth connection of power transformation sieve bar, row is connected with the equipment electricity, it is characterized in that, described earth connection comprises sieve bar, U word main body, binding clip, wiring nose and earth lead, described sieve bar connects U word main body and binding clip successively, described wiring nose one end is connected with U word main body, and the other end is connected with earth lead, and described binding clip is connected with equipment electricity row.
2. the straight and-clamping fastening earth connection of a kind of power transformation sieve bar according to claim 1, is characterized in that, an end of described sieve bar is provided with screw thread, and described sieve bar is connected with U word main body by this screw thread, and the other end of described sieve bar is arranged with insulating case.
3. the straight and-clamping fastening earth connection of a kind of power transformation sieve bar according to claim 1, it is characterized in that, one end of described wiring nose is the hollow cylinder that the diameter of diameter and earth lead is complementary, and the other end of wiring nose is fixed on U word main body by set bolt.
4. the straight and-clamping fastening earth connection of a kind of power transformation sieve bar according to claim 1, it is characterized in that, described binding clip is provided with the end that U word main body is connected rise spring and cam block, described cam block is arranged in U word main body, and described binding clip is fixed on U word main body by two steady pins jointly with the spring that rises.
5. the straight and-clamping fastening earth connection of a kind of power transformation sieve bar according to claim 1, is characterized in that, the maximum opening of described binding clip is 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220597506 CN202977774U (en) | 2012-11-13 | 2012-11-13 | Power transformation screw rod clamping and tightening type ground wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220597506 CN202977774U (en) | 2012-11-13 | 2012-11-13 | Power transformation screw rod clamping and tightening type ground wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202977774U true CN202977774U (en) | 2013-06-05 |
Family
ID=48518808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220597506 Expired - Lifetime CN202977774U (en) | 2012-11-13 | 2012-11-13 | Power transformation screw rod clamping and tightening type ground wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202977774U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904080A (en) * | 2012-11-13 | 2013-01-30 | 上海市电力公司 | Power transformation screw rod vertical clamping fixed type ground wire |
-
2012
- 2012-11-13 CN CN 201220597506 patent/CN202977774U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102904080A (en) * | 2012-11-13 | 2013-01-30 | 上海市电力公司 | Power transformation screw rod vertical clamping fixed type ground wire |
| CN102904080B (en) * | 2012-11-13 | 2015-11-25 | 上海市电力公司 | The straight and-clamping fastening earth connection of a kind of power transformation sieve bar |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |