CN203871732U - Special-purpose ground wire for built-in switch cabinet - Google Patents
Special-purpose ground wire for built-in switch cabinet Download PDFInfo
- Publication number
- CN203871732U CN203871732U CN201420149768.0U CN201420149768U CN203871732U CN 203871732 U CN203871732 U CN 203871732U CN 201420149768 U CN201420149768 U CN 201420149768U CN 203871732 U CN203871732 U CN 203871732U
- Authority
- CN
- China
- Prior art keywords
- cylindrical aluminum
- switch cabinet
- ground wire
- ground
- special
- 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 - Fee Related
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 30
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000002788 crimping Methods 0.000 claims abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 25
- 238000009413 insulation Methods 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 230000003068 static effect Effects 0.000 abstract 1
- 238000012795 verification Methods 0.000 description 8
- 239000004020 conductor Substances 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Gas-Insulated Switchgears (AREA)
Abstract
The utility model relates to the technical field of power network operation equipment, and specifically relates to a special-purpose ground wire for a built-in switch cabinet. The special-purpose ground wire is composed of a ground wire clamp, a ground soft copper wire, an insulation operating lever and a metal head. The top portion of the insulation operating lever is provided with a cylindrical aluminum metal head, the insulation operating lever is closely crimped on the cylindrical aluminum metal head, two rows of contact holes at corresponding positions are annularly uniformly distributed at the cylindrical aluminum metal head, the contact holes are internally provided with elastic metal spherical contacts, there is a fixation hole between two contact holes in each row, the lower static contact in the built-in switch cabinet is internally provided with a projection corresponding to the fixation hole, the bottom of the cylindrical aluminum metal head is provided with a crimping position connected with the ground soft copper wire, the ground end of the special-purpose ground wire is connected with the ground wire clamp, and an electrical connection end is connected to the cylindrical aluminum metal head through the ground soft copper wire. Compared to a fixation type ground wire, the special-purpose ground wire has the advantages of more convenient application, clearer grounding points, and higher safety and reliability.
Description
Technical field
The utility model relates to operation of power networks equipment technical field, is specifically related to a kind of central switch cabinet Special grounding wire.
Background technology
In prior art, in the time of circuit hanging earthing conductor, shrouding behind central switch cabinet cable vault need to be pulled down, the exposed part of branch bar in cabinet be carried out to electrical verification with electrical verification rod, identify really after no-voltage, direct hanging earthing conductor in cable vault after feeder cabinet.
In the operating process of above-mentioned circuit hanging earthing conductor, have potential safety hazard, when outlet switch cabinet hidden danger of more times is larger, maximum potential safety hazard is gone to the wrong way interval exactly, and this can divide following two kinds of situations:
A kind of is to go to after the cabinet of another switch cubicle moving because between the cable vault's shrouding after switch cubicle and handcart without any locking device, only the screw of rear shrouding need be outwarded winding and can be opened, slightly do not note just having the danger of electric shock;
A kind of is to go to after the cabinet of another switch cubicle that is in stand-by state, open shrouding behind cable vault, experience torch is identified without after electricity, hang up earth connection, this has just caused not hanging ground-wire of this switch cubicle that turns maintenance, and switch cubicle that should not hanging earthing conductor has hung up earth connection, this just likely causes line with ground to close disconnecting link, and consequence is quite serious.
In addition, after central switch cabinet, in cable vault when hanging earthing conductor, operations staff need to get into cabinet internal wiring trackside, when this operating cost, requires great effort again.
Cause the analysis of some problems that run in the practical operation of power transformation O&M according to the version of 10kV, 35kV middle-placed switch cabinet, in the situation that not violating " safety ", develop the utility model central switch cabinet Special grounding wire, improve person on duty's operating process, solve present situation more loaded down with trivial details for middle-placed switch cabinet electrical verification ground connection and the larger potential safety hazard of existence.
Utility model content
The utility model provides a kind of Geng Fang of use Bian ﹑ earth point Geng Ming Que ﹑ security reliability higher central switch cabinet Special grounding wire.
Central switch cabinet Special grounding wire described in the utility model is by earthing clamp, ground connection annealed copper wire, insulating bar and ferrule composition, insulating bar top arranges cylindrical aluminum ferrule, insulating bar is closely crimped in cylindrical aluminum ferrule, cylindrical aluminum ferrule annular is uniform to be arranged two rankings and puts corresponding contact holes, contact holes inside arranges elastic metallic spherical contact, between two contact holes of each row, it is fixing hole, the inner setting of the lower fixed contact projection corresponding with fixing hole in central switch cabinet, cylindrical aluminum ferrule bottom arranges crimping place being connected with ground connection annealed copper wire, this Special grounding wire earth terminal is connected with earthing clamp, power connection end is connected in cylindrical aluminum ferrule by ground connection annealed copper wire.
Described cylindrical aluminum ferrule size adapts with the inner lower fixed contact size arranging of central switch cabinet.Cylindrical aluminum ferrule size is advisable just to insert in lower fixed contact.In the time that cylindrical aluminum ferrule is inserted, projection can be combined together with fixing hole, plays fixation.
Insulating bar is closely crimped in ferrule, and its material is processed by raw material such as the splendid epoxy resin of insulation property, meets the length requirement (being greater than 0.7m) that High-Voltage Insulation and safety require, and ensures operator safety.
When work, under car switch, fixed contact side is connected with line side, to lower fixed contact side joint can complete the ground connection to line side.
After car switch pull-out cabinet, in cabinet, lower fixed contact side electrical verification, after the true no-voltage of electrical verification, is used the utility model, first earth terminal wire clamp is fixed, and hand-held insulating bar pushes power connection end in lower fixed contact, can easily complete three-phase ground.
The beneficial effects of the utility model are:
Compared with fixed earth connection, the utility model uses Geng Fang Bian ﹑ earth point Geng Ming Que ﹑ security reliability higher, in the time of electric equipment and power circuit power failure Jian Xiu ﹑ inspection, can prevent the attack of unexpected Lai electricity ﹑ induced electricity and residual charge, guarantee the life security of operating personnel on equipment.Electrical verification point, earth point, in cabinet front side, can effectively prevent mistakenly entering charged chamber; Cylindrical aluminum ferrule contact area is large, and ground connection is better; Use insulating bar to carry out ground connection, operate safer.
Brief description of the drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is that the utility model uses view;
In figure: 1, cylindrical aluminum ferrule; 2, contact holes; 3, fixing hole; 4, crimping place; 5, ground connection annealed copper wire; 6, earthing clamp; 7, insulating bar; 8, elastic metallic spherical contact; 9, lower fixed contact.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 1-2, central switch cabinet Special grounding wire described in the utility model is by earthing clamp 6, ground connection annealed copper wire 5, insulating bar 7 and ferrule composition, insulating bar 7 tops arrange cylindrical aluminum ferrule 1, insulating bar 7 is closely crimped in cylindrical aluminum ferrule 1, cylindrical aluminum ferrule 1 annular is uniform to be arranged two rankings and puts corresponding contact holes 2, contact holes 2 inside arrange elastic metallic spherical contact 8, between two contact holes 2 of each row, it is fixing hole 3, the inner setting of lower fixed contact 9 projection corresponding with fixing hole 3 in central switch cabinet, cylindrical aluminum ferrule 1 bottom arranges crimping place 4 being connected with ground connection annealed copper wire 5, this Special grounding wire earth terminal is connected with earthing clamp 6, power connection end is connected in cylindrical aluminum ferrule 1 by ground connection annealed copper wire 5.
Described cylindrical aluminum ferrule 1 size adapts with inner lower fixed contact 9 sizes that arrange of central switch cabinet.Cylindrical aluminum ferrule 1 size is advisable just to insert in lower fixed contact 9.In the time that cylindrical aluminum ferrule 1 is inserted, projection can be combined together with fixing hole 3, plays fixation.
Insulating bar 7 is closely crimped in cylindrical aluminum ferrule 1, and its material is processed by raw material such as the splendid epoxy resin of insulation property, meets the length requirement (being greater than 0.7m) that High-Voltage Insulation and safety require, and ensures operator safety.
When work, lower fixed contact 9 sides are connected with line side, to lower fixed contact 9 side joints can complete the ground connection to line side.After car switch pull-out cabinet, lower fixed contact 9 side electrical verifications in cabinet, after the true no-voltage of electrical verification, use the utility model, first earth terminal is fixed with earthing clamp 6, hand-held insulating bar 7 pushes power connection end in lower fixed contact 9, can easily complete three-phase ground.After finishing using, take out.
Claims (3)
1. a central switch cabinet Special grounding wire, by earthing clamp (6), ground connection annealed copper wire (5), insulating bar (7) and ferrule composition, it is characterized in that: insulating bar (7) top arranges cylindrical aluminum ferrule (1), insulating bar (7) is closely crimped in cylindrical aluminum ferrule (1), cylindrical aluminum ferrule (1) annular is uniform to be arranged two rankings and puts corresponding contact holes (2), contact holes (2) inside arranges elastic metallic spherical contact (8), between two contact holes (2) of each row, be fixing hole (3), the inner setting of lower fixed contact (9) projection corresponding with fixing hole (3) in central switch cabinet, cylindrical aluminum ferrule (1) bottom arranges crimping place (4) being connected with ground connection annealed copper wire (5), this Special grounding wire earth terminal is connected with earthing clamp (6), power connection end is connected in cylindrical aluminum ferrule (1) by ground connection annealed copper wire (5).
2. central switch cabinet Special grounding wire according to claim 1, is characterized in that: cylindrical aluminum ferrule (1) size adapts with lower fixed contact (9) size.
3. central switch cabinet Special grounding wire according to claim 1, is characterized in that: earthing clamp (6) is batt joint ground clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420149768.0U CN203871732U (en) | 2014-03-31 | 2014-03-31 | Special-purpose ground wire for built-in switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420149768.0U CN203871732U (en) | 2014-03-31 | 2014-03-31 | Special-purpose ground wire for built-in switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203871732U true CN203871732U (en) | 2014-10-08 |
Family
ID=51652654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420149768.0U Expired - Fee Related CN203871732U (en) | 2014-03-31 | 2014-03-31 | Special-purpose ground wire for built-in switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203871732U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956669A (en) * | 2014-03-31 | 2014-07-30 | 国家电网公司 | Ground wire special for middle switch cabinet |
| CN112290240A (en) * | 2020-10-15 | 2021-01-29 | 贵州电网有限责任公司 | Universal installation equipment convenient for installing grounding wire and use method thereof |
-
2014
- 2014-03-31 CN CN201420149768.0U patent/CN203871732U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956669A (en) * | 2014-03-31 | 2014-07-30 | 国家电网公司 | Ground wire special for middle switch cabinet |
| CN112290240A (en) * | 2020-10-15 | 2021-01-29 | 贵州电网有限责任公司 | Universal installation equipment convenient for installing grounding wire and use method thereof |
| CN112290240B (en) * | 2020-10-15 | 2022-06-07 | 贵州电网有限责任公司 | Universal installation equipment convenient for installing grounding wire and use method thereof |
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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 |
Granted publication date: 20141008 Termination date: 20190331 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |