CN108574149A - A kind of switchgear inner cable head Special grounding wire - Google Patents
A kind of switchgear inner cable head Special grounding wire Download PDFInfo
- Publication number
- CN108574149A CN108574149A CN201710137853.3A CN201710137853A CN108574149A CN 108574149 A CN108574149 A CN 108574149A CN 201710137853 A CN201710137853 A CN 201710137853A CN 108574149 A CN108574149 A CN 108574149A
- Authority
- CN
- China
- Prior art keywords
- clamp
- gripping block
- screw rod
- insulating bar
- inner cable
- 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.)
- Pending
Links
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 13
- 238000012423 maintenance Methods 0.000 description 6
- 239000010949 copper Substances 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 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
- 238000010276 construction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
- H01R11/12—End pieces terminating in an eye, hook, or fork
- H01R11/14—End pieces terminating in an eye, hook, or fork the hook being adapted for hanging on overhead or other suspended lines, e.g. hot line clamp
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/717—Structural association with built-in electrical component with built-in light source
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The invention discloses a kind of switchgear inner cable head Special grounding wire, including hot line clamp and insulating bar, hot line clamp includes clamp and gripping block and earthing or grounding means, and threaded hole is offered on clamp；The screw rod to match with threaded hole is equipped on the top of insulating bar, the top of screw rod installs the gripping block, the size for the clamping opening that clamp is constituted with gripping block is adjusted by rotating screw rod；The clamp is in " C " shape structure, vee positioned opposite is offered on clamp and gripping block, the notch face of vee is non slip surface；The insulating bar is formed by connecting by head rod and foot piece by Hooke's joint；It is the configuration of the present invention is simple, easy to operate, realize held tight of the ground wire to the circuit end in close line side in high-tension switch cabinet, grounding safety is firm, not easily to fall off, thoroughly solves the problems, such as that cable socket installing ground wire is difficult, improves the efficiency of grid switching operation.
Description
Technical field
The present invention relates to distribution operation technical field of tools, especially a kind of switchgear inner cable head Special grounding wire.
Background technology
Currently, in the power system, the grid switching operation of efficiently and accurately is the important leverage of electric power Moral Culture Construction good service.
For high voltage distribution network（10kV）For, with increasing distribution line operation, in order to ensure back brake safety, in distribution line
Before carrying out interruption maintenance, it is necessary to after being detected by line side and determining no voltage, refill and set ground wire, wherein being grounded
It is to ensure that electric power is transported with this in order in the equipment or circuit having had a power failure when drop-in voltage, circuit is introduced the earth
Tie up the important tool of personnel safety.Thus, it is possible to which quickly installing is grounded in time, also safely and efficiently carried out for operation maintenance personnel
Grid switching operation provides sound assurance.
Referring to Fig. 1, the structure of existing ground wire is as follows：Ground wire includes hot line clamp and insulating bar 1, live line
Folder includes " u "-shaped clamp 2 and gripping block 3 and earthing or grounding means 4, and clamp 2 is in lateral arrangement, is opened up on the lower side of clamp 2
There is threaded hole 5；The screw rod 6 to match with threaded hole 5 is equipped on the top of insulating bar 1, the folder is installed on the top of screw rod 6
Tight block 3, gripping block 3 and the upper side edge of clamp 2 constitute clamping opening 7, and the size of clamping opening 7 is adjusted by rotating screw rod 6.Using described
Ground wire have the following problems when being grounded：
(1) since in substation room, the wiring in the switchgear of 10kV close to line side is adopted in the end of cable connection
With cylindrical copper wire nose, copper wire nose is arranged by bolt with aluminium then or copper bar is fastenedly connected；When needing to carry out
Grid switching operation and to the wiring in the close line side carry out grounding when, due to aluminium row or copper bar size it is bigger, Fig. 1
The clamping opening 7 of the ground wire it cannot be clamped completely, and clamping opening 7 can only be clamped on copper wire nose.However, due to connecing
The clamping opening 7 of ground wire is flat mouth structure, and contact area of the clamping opening under clamp position between copper wire nose is small, and copper wiring nose holds
It easily falls off from clamping opening, this causes switch-cabinet grounding not firm, and there are larger security risks；
(2) since in substation room, it is empty with activity to provide more well-to-do operating space in order to as much as possible for staff
Between, under the premise of not influencing power distribution network safe operation, generally switchgear can be all standardized, modularized design, be switched
The arrangement of each component and distribution line in cabinet is all more compact.When in switchgear close to line side wiring into
When row grounding, often due to space is limited in cabinet, the insulating bar of ground wire is long and lacks operation allowance, leads
Cause operation difficulty increasing, consuming time long, it is difficult to be locked to the clamping opening of hot line clamp, line-to-ground is not firm；
(3) grounding device constructions on existing hot line clamp are simple, service life is short, only use common earthing rod, and
Fitted bolt fastens the lead for ground connection.This structure is time-consuming and laborious when being fastened to ground lead, and
And be difficult to it is larger to hardness and be not easy bending thick copper lines or steel wire rope fasten, so as to cause be grounded it is not firm；
(4) in general, light is weaker in switchgear, under power failure, if the not cooperation of illuminator, operation maintenance personnel
Hand-held insulating bar will be difficult to the quickly and accurately clamping opening by hot line clamp and is aligned with copper wire nose, lead to working efficiency
Lowly, delay stops electric power feeding time.
Invention content
Present invention aim to solve existing ground wire to being carried out close to line side circuit in high-tension switch cabinet
Existing above problem when grounding provides electricity in a kind of simple in structure, easy to operate, the firm switchgear of ground connection thus
Cable end Special grounding wire.
The present invention concrete scheme be：A kind of switchgear inner cable head Special grounding wire, including hot line clamp and insulation are grasped
Make bar, hot line clamp includes clamp and gripping block and earthing or grounding means, and threaded hole is offered on clamp；On the top of insulating bar
End is equipped with the screw rod to match with threaded hole, and the gripping block is installed on the top of screw rod, and clamp and folder are adjusted by rotating screw rod
The size for the clamping opening that tight block is constituted；It is characterized in that：The clamp is in " C " shape structure, is offered on clamp and gripping block opposite
The notch face of the vee of arrangement, vee is non slip surface；The insulating bar passes through ten by head rod and foot piece
Word shaft universal-joint is formed by connecting.
Heretofore described head rod is equipped with illuminator.
Heretofore described earthing or grounding means includes fastening bolt and fastening nut, is offered on clamp and fastening bolt phase
Matched through-hole；The head of the fastening bolt is a countersunk head chuck, by upside arc clip and the upper and lower phase of downside arc clip
To being arranged to sleeve-like structure, the width of upside arc clip is more than the width of downside arc clip；It is equipped with and upside on clamp
Two arc cushion blocks that the both ends of arc clip match, two arc cushion block parallel arrangements are in through-hole both sides.
Sliding slot is equipped in the present invention on clamp；The gripping block is equipped with the sliding block to match with sliding slot, in gripping block
In be equipped with spherical cavity, gripping block is put together by two hemihedrism；It is equipped with bulb on the top of screw rod, bulb matches with spherical cavity
It closes.
Heretofore described non slip surface is zigzag structure.
The present invention has the following advantages：
(1) the configuration of the present invention is simple, easy to operate, by using the clamping opening being made of two vees with serrated face,
Convenient for carrying out close occlusion up and down to the copper wire nose of cable socket so that clamping opening is under clamp position between copper wire nose
Contact area is big, effectively prevents copper wiring nose and is easy to fall off from clamping opening, grounding safety is firm, thoroughly solves cut cable
The difficult problem of head installing ground wire, improves the efficiency of grid switching operation；
(2) present invention is by using the insulating bar with Hooke's joint, when encountering because space is narrow in high-tension switch cabinet
It is small and when being not easy to insulating bar and carrying out locking operation to hot line clamp, only need to be by Hooke's joint by head rod and foot piece
Adjustment is in 90 °, referring to Fig. 3, allows bit space to reserve, foot piece can be controlled as extension bar, operation maintenance personnel by foot piece at this time
The rotary state of head rod processed is adjusted the size of the clamping opening of hot line clamp to facilitate；
(3) present invention is by using the earthing or grounding means with countersunk head chuck, when in use, need to only be inserted into exposed lead ends
Into countersunk head chuck, then corresponding fastening bolt is fastened on by fastening nut on clamp, you can complete paired lead
Tightening operation, it is not only simple to operate, and also service life is long, effectively prevents the existing ground connection with binding post structure
Device is time-consuming and laborious when frequently being loaded and unloaded to ground lead, and binding post is easy to be damaged, and ground lead fastening is not
Firm problem；
(4) present invention on head rod by being arranged illuminator, when light is weaker in high-tension switch cabinet body, operation maintenance personnel
Quickly and accurately the clamping opening of hot line clamp can be aligned with copper wire nose, working efficiency effectively improves.
Description of the drawings
Fig. 1 is the structural schematic diagram being currently grounded；
Fig. 2 is the structural schematic diagram of the present invention；
Fig. 3 is the configuration schematic diagram of the present invention；
Fig. 4 is the structural schematic diagram of earthing or grounding means in the present invention.
In figure：1-insulating bar, 1a-head rod, 1b-foot piece, 1c-Hooke's joint, 2-clamps, 3-clamp
Block, 4-earthing or grounding means, 5-threaded holes, 6-screw rods, 7-clamping opening, 7a, 7b-vee, 8-illuminators, 9-is tight
Fixing bolt, 10-fastening nuts, 11-through-holes, 12-countersunk head chucks, 12a-upside arc clip, 12b-downside arc folder
Piece, 13-arc cushion blocks, 14-sliding slots, 15-sliding blocks, 16-spherical cavities, 17-bulbs.
Specific implementation mode
Referring to Fig. 2, Fig. 3, a kind of switchgear inner cable head Special grounding wire, including hot line clamp and insulating bar 1, band
Electrical wire clip includes clamp 2 and gripping block 3 and earthing or grounding means 4, and threaded hole 5 is offered on clamp 2；On the top of insulating bar 1
End is equipped with the screw rod 6 to match with threaded hole 5, and the gripping block 3 is installed on the top of screw rod 6, and clamp is adjusted by rotating screw rod 6
The size of 2 clamping opening 7 constituted with gripping block 3；The clamp 2 is in " C " shape structure, is offered on clamp 2 and gripping block 3 opposite
The vee 7a and 7b of arrangement, the notch face of vee 7a and 7b are non slip surface, and the non slip surface is zigzag
Structure；The insulating bar 1 is formed by connecting by head rod 1a and foot piece 1b by Hooke's joint 1c.
Head rod 1a described in the present embodiment is equipped with illuminator 8.
Referring to Fig. 4, earthing or grounding means 4 described in the present embodiment includes fastening bolt 9 and fastening nut 10, is opened on clamp 2
The through-hole 11 to match equipped with the screw rod with fastening bolt 9；The head of the fastening bolt 9 is a countersunk head chuck 12, by upside
Arc clip 12a and downside arc clip 12b is upper and lower positioned opposite at sleeve-like structure, and the width of upside arc clip 12a is more than
The width of downside arc clip 12b；Two arc-shaped pads to match with the both ends of upside arc clip 12a are equipped on clamp 2
Block 13, two arc cushion block parallel arrangements are in 11 both sides of through-hole.
Sliding slot 14 is equipped in the present embodiment on clamp 2；The gripping block 3 is equipped with the sliding block to match with sliding slot 14
15, spherical cavity 16 is equipped in gripping block 3, gripping block 3 is put together by two hemihedrism；It is equipped with bulb 17 on the top of screw rod 6,
Bulb 17 is matched with spherical cavity 16.When operation maintenance personnel by insulating bar 1 control screw rod 6 rotated when, screw rod 6 along
Threaded hole 5 is moved forward or back, and screw rod 6 move forward or back while push gripping block 3 along sliding slot 14 forward or
It slides backward, the spherical connection structure between screw rod 6 and gripping block 3, it is ensured that screw rod 6 carries out axial fortune in drive gripping block 3
Without giving gripping block 3 one larger radial loads while dynamic.
Claims (5)
1. a kind of switchgear inner cable head Special grounding wire, including hot line clamp and insulating bar, hot line clamp include clamp
With gripping block and earthing or grounding means, threaded hole is offered on clamp；It is equipped on the top of insulating bar and matches with threaded hole
Screw rod, the top of screw rod installs the gripping block, adjust clamp by rotating screw rod and clamping opening that gripping block is constituted it is big
It is small；It is characterized in that：The clamp is in " C " shape structure, and vee positioned opposite, triangle are offered in clamp and gripping block
The notch face of v notch v is non slip surface；The insulating bar is formed by connecting by head rod and foot piece by Hooke's joint.
2. a kind of switchgear inner cable head Special grounding wire according to claim 1, it is characterized in that：The head rod is equipped with
Illuminator.
3. a kind of switchgear inner cable head Special grounding wire according to claim 1, it is characterized in that：The earthing or grounding means packet
Fastening bolt and fastening nut are included, the through-hole to match with fastening bolt is offered on clamp；The head of the fastening bolt
It is upper and lower positioned opposite at sleeve-like structure, upside arc clip by upside arc clip and downside arc clip for a countersunk head chuck
Width be more than downside arc clip width；Two arcs to match with the both ends of upside arc clip are equipped on clamp
Cushion block, two arc cushion block parallel arrangements are in through-hole both sides.
4. a kind of switchgear inner cable head Special grounding wire according to claim 1, it is characterized in that：It is equipped with and slides on clamp
Slot；The gripping block is equipped with the sliding block to match with sliding slot, and spherical cavity is equipped in gripping block, and gripping block is spelled by two hemihedrism
It closes；It is equipped with bulb on the top of screw rod, bulb is matched with spherical cavity.
5. a kind of switchgear inner cable head Special grounding wire according to claim 1, it is characterized in that：The non slip surface is saw
Tooth-shape structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710137853.3A CN108574149A (en) | 2017-03-09 | 2017-03-09 | A kind of switchgear inner cable head Special grounding wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710137853.3A CN108574149A (en) | 2017-03-09 | 2017-03-09 | A kind of switchgear inner cable head Special grounding wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108574149A true CN108574149A (en) | 2018-09-25 |
Family
ID=63577858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710137853.3A Pending CN108574149A (en) | 2017-03-09 | 2017-03-09 | A kind of switchgear inner cable head Special grounding wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108574149A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247205A (en) * | 2019-04-16 | 2019-09-17 | 国网浙江嘉善县供电有限公司 | It is a kind of it is novel can multidirectional adjusting power transformation earthing clamp |
| CN110829056A (en) * | 2019-12-02 | 2020-02-21 | 王继军 | Low-voltage short circuit grounding wire operating device |
| CN112397912A (en) * | 2020-11-06 | 2021-02-23 | 贵州电网有限责任公司 | Be used for emergent device of plugging into of guaranteeing power supply |
-
2017
- 2017-03-09 CN CN201710137853.3A patent/CN108574149A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110247205A (en) * | 2019-04-16 | 2019-09-17 | 国网浙江嘉善县供电有限公司 | It is a kind of it is novel can multidirectional adjusting power transformation earthing clamp |
| CN110829056A (en) * | 2019-12-02 | 2020-02-21 | 王继军 | Low-voltage short circuit grounding wire operating device |
| CN112397912A (en) * | 2020-11-06 | 2021-02-23 | 贵州电网有限责任公司 | Be used for emergent device of plugging into of guaranteeing power supply |
| CN112397912B (en) * | 2020-11-06 | 2022-04-08 | 贵州电网有限责任公司 | Be used for emergent device of plugging into of guaranteeing power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180925 |
|
| WD01 | Invention patent application deemed withdrawn after publication |