CN203813085U - 0 DEG screw-type clamp head of shunt wire - Google Patents
0 DEG screw-type clamp head of shunt wire Download PDFInfo
- Publication number
- CN203813085U CN203813085U CN201420188401.XU CN201420188401U CN203813085U CN 203813085 U CN203813085 U CN 203813085U CN 201420188401 U CN201420188401 U CN 201420188401U CN 203813085 U CN203813085 U CN 203813085U
- Authority
- CN
- China
- Prior art keywords
- fastening
- hook
- screw
- clamp head
- type clamp
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 abstract 1
- 238000002955 isolation Methods 0.000 abstract 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 8
- 230000007547 defect Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002510 pyrogen Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Abstract
Provided is a 0 DEG screw-type clamp head of a shunt wire. The 0 DEG screw-type clamp head comprises a fastening hook, a fastening screw rod, and a fastening block, wherein the upper part of the fastening hook is a hook body in a hook shape, a terminal is formed at a side surface of the hook body, the lower end of the fastening hook stretches toward the direction of the hook point to form a fixation beam, the fixation beam is in the same horizontal plane with the hook body, a screw hole which goes through the fixation beam is formed on the fixation beam; the middle thread of the fastening screw rod is connected in the screw hole of the fastening hook, a rear end of the fastening screw rod is provided with a connection plug; and the fastening block is mounted at the front end of the fastening screw rod, and is located in a space surrounded by the hook body. The 0 DEG screw-type clamp head is suitable for mounting a shunt wire on a lead wire which is arranged in a horizontal manner. It is proved by actual operation and comparison experiments that: through employing the shunt wire connected by the 0 DEG screw-type clamp head to carry out live short circuit for an isolation switch at ground potential, characteristics of being short in time, being small in labor intensity, convenience and quickness are obtained, part of the current is shunted effectively, and the current passage capability of the short circuit position is increased.
Description
Technical field
The utility model belongs to electric power overhaul and safeguards and use device technique field, particularly relates to 0 ° of spiral dop of a kind of shunt line.
Background technology
In electric power system, because most of electric equipment long term exposure are in outdoor rugged environment, therefore through long-term exposing to the sun and rain, the couple corrosion phenomenon at device junction place can be very serious, result often causes device junction place to occur corrosion and heating, thereby the safe and stable operation of the equipment of giving brings great hidden danger, when serious, even can cause unplanned power failure, thereby seriously reduce power supply reliability index.
Yi Qi electric company power transformation first administrative institute's jurisdiction equipment is example, between 2009 to 2011, occurs 59 of thermal defects, and wherein the heating of GW5 type isolating switch is 29, causes unplanned power failure 18 times.Wherein the heating defect of isolating switch mostly is electric current pyrogenicity type defect, mainly concentrates on the current-carrying positions such as contact, fingertip, conducting rod junction and device junction.
According to < < charging equipment infrared diagnostics using standard > > DL/T664-2008, heating defect can be divided into general, serious, critical three kinds.Any one heating position is judged as serious or critical defect, just must be as early as possible or interruption maintenance immediately, or take to reduce the measure of load current temporarily.Therefore if at adstante febre, manage at heating position shorted on both ends shunt line, utilize the temporary transient load sharing part of this shunt line electric current, thereby reduction hot(test)-spot temperature, assurance equipment reliable power supply, when scheduled outage is overhauled, carry out again respective handling, just can greatly improve the power supply reliability of equipment, reduce unplanned power failure.In order to guarantee that shunt line is connected reliably with heating position two ends, reduce contact resistance, need there is corresponding shunt line dop.But still lack such device at present.
Summary of the invention
In order to address the above problem, the purpose of this utility model is to provide a kind of reasonable in design, simple in structure, easy to operate shunt line 0 ° of spiral dop.
In order to achieve the above object, 0 ° of spiral dop of shunt line that the utility model provides comprises fastening hook, fastening leading screw and fastening block; Wherein the top of fastening hook is the coupler body that is hook-shaped, and coupler body side is formed with binding post, and lower end edge laterally extends and is formed with a built-in beam towards bill direction, and built-in beam is positioned at same plane with coupler body, on while built-in beam, has been formed through a screw; The middle part of fastening leading screw is threaded in the screw on above-mentioned fastening hook, and rear end is provided with an attachment plug; Fastening block is arranged on the front end of fastening leading screw, and is positioned at the space that coupler body surrounds.
The cylindrical structure of described attachment plug for being made by iron material, is formed with two reference columns on its outer circumference surface.
The front end face middle part of described fastening block is formed with a deep-slotted chip breaker.
0 ° of spiral dop of shunt line that the utility model provides is applicable to, on horizontally disposed wire, shunt line is installed, by practical operation and comparison test, the shunt line that adopts this 0 ° spiral dop to connect carries out the work of earth potential live short circuit isolating switch, have that the time is short, labour intensity is little, feature conveniently, load sharing part electric current effectively, increased the through-current capability at short circuit position, can meet and produce actual requirement, repairing frequency of power cut and unplanned frequency of power cut have been reduced, improve power supply reliability, increased electricity sales amount.
Accompanying drawing explanation
0 ° of spiral dop structural representation of shunt line that Fig. 1 provides for the utility model.
Embodiment
The 0 ° of spiral dop of shunt line the utility model being provided below in conjunction with the drawings and specific embodiments is elaborated.
As shown in Figure 1,0 ° of spiral dop of shunt line that the utility model provides comprises fastening hook 1, fastening leading screw 2 and fastening block 3; Wherein the top of fastening hook 1 is the coupler body that is hook-shaped, coupler body side is formed with binding post 4, lower end edge laterally extends and is formed with a built-in beam 5 towards bill direction, and built-in beam 5 is positioned at same plane with coupler body, has been formed through a screw on built-in beam 5 simultaneously; The middle part of fastening leading screw 2 is threaded in the screw on above-mentioned fastening hook 1, and rear end is provided with an attachment plug 6; Fastening block 3 is arranged on the front end of fastening leading screw 2, and is positioned at the space that coupler body surrounds.
The cylindrical structure of described attachment plug 6 for being made by iron material, is formed with two reference columns 7 on its outer circumference surface.
The front end face middle part of described fastening block 3 is formed with a deep-slotted chip breaker 8, so that contact with the intimate of wire.
The 0 ° of spiral dop using method of shunt line now the utility model being provided is described below:
1. in the time of need to be at its shorted on both ends shunt line when heating appears in certain isolating switch, because this work is earth potential live operation, need to operate according to < < live-working safety rules > >, and can carry out after person in charge's approval.
2. before short circuit, first check the phase place of isolating switch.
3. by staff, the oxide layer at shunt line to be assembled position on isolating switch both sides wire and dop is removed, the insulating bar that available front end is fixed with wire brush carries out, and makes it contact good.
4. should guarantee that circuit breaker is in closing position, and take off trip(ping) circuit fuse, after locked tripping mechanism, can short circuit.
5. by two staff, the two ends of shorting stub are connected on the binding post 4 of two 0 ° of spiral dops, then the insulating bar front slot that inside is equipped with to strong magnets is inserted in attachment plug 6 outsides, and rotation is to utilize reference column 7 that attachment plug 6 is locked in insulating bar front slot, lift afterwards simultaneously high insulating bar with and on 0 ° of spiral dop and shunt line, until the wire at shunt line to be assembled place is inserted in the space between coupler body and fastening block 3, then turn insulating bar, thereby make fastening leading screw 2 rotations, drive thus fastening block 3 to shift to coupler body front end inner surface, until utilize fastening block 3 and coupler body front end inner surface, wire is tightly clamped.Take off insulating bar.
6. finally shunt line is supported, with antihunting, cause ground connection or short circuit.
During certain isolating switch (GW5 type) interruption maintenance, the inventor has carried out repeatedly checking and testing to used shunt line.Utilize at the scene 5501 circuit resistance testers (production of the Baoding Jin Da Electric Applicance Co., Ltd) test of comparing.Contact resistance before operating in short-circuit and shunt line in measuring range is 1.2 milliohms, and the contact resistance after short circuit in measuring range is reduced to 300 micro-ohms, and visible shunt line has played shunting action, has reached Expected Results.
Claims (3)
1. 0 ° of spiral dop of shunt line, is characterized in that: it comprises fastening hook (1), fastening leading screw (2) and fastening block (3); Wherein the top of fastening hook (1) is the coupler body that is hook-shaped, coupler body side is formed with binding post (4), lower end edge is laterally formed with a built-in beam (5) towards the extension of bill direction, and built-in beam (5) is positioned at same plane with coupler body, on built-in beam (5), be formed through a screw simultaneously; The middle part of fastening leading screw (2) is threaded in the screw on above-mentioned fastening hook (1), and rear end is provided with an attachment plug (6); Fastening block (3) is arranged on the front end of fastening leading screw (2), and is positioned at the space that coupler body surrounds.
2. 0 ° of spiral dop of shunt line according to claim 1, is characterized in that: the cylindrical structure of described attachment plug (6) for being made by iron material, is formed with two reference columns (7) on its outer circumference surface.
3. 0 ° of spiral dop of shunt line according to claim 1, is characterized in that: the front end face middle part of described fastening block (3) is formed with a deep-slotted chip breaker (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420188401.XU CN203813085U (en) | 2014-04-17 | 2014-04-17 | 0 DEG screw-type clamp head of shunt wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420188401.XU CN203813085U (en) | 2014-04-17 | 2014-04-17 | 0 DEG screw-type clamp head of shunt wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203813085U true CN203813085U (en) | 2014-09-03 |
Family
ID=51451799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420188401.XU Expired - Lifetime CN203813085U (en) | 2014-04-17 | 2014-04-17 | 0 DEG screw-type clamp head of shunt wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203813085U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218342A (en) * | 2014-09-22 | 2014-12-17 | 国网上海市电力公司 | Electric temporary lapping joint device applied to 10kV distribution network |
| CN105244645A (en) * | 2015-08-31 | 2016-01-13 | 国网辽宁省电力有限公司葫芦岛供电公司 | Adjustable low-voltage ground wire device for high and low voltage power work |
| CN109742626A (en) * | 2019-02-28 | 2019-05-10 | 广州供电局有限公司 | Drainage thread auxiliary mounting tool |
-
2014
- 2014-04-17 CN CN201420188401.XU patent/CN203813085U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218342A (en) * | 2014-09-22 | 2014-12-17 | 国网上海市电力公司 | Electric temporary lapping joint device applied to 10kV distribution network |
| CN104218342B (en) * | 2014-09-22 | 2017-02-08 | 国网上海市电力公司 | Electric temporary lapping joint device applied to 10kV distribution network |
| CN105244645A (en) * | 2015-08-31 | 2016-01-13 | 国网辽宁省电力有限公司葫芦岛供电公司 | Adjustable low-voltage ground wire device for high and low voltage power work |
| CN109742626A (en) * | 2019-02-28 | 2019-05-10 | 广州供电局有限公司 | Drainage thread auxiliary mounting tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 300010 Tianjin city Hebei District Wujing Road No. 39 Patentee after: State Grid Corporation of China Patentee after: STATE GRID TIANJIN ELECTRIC POWER Co. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee before: State Grid Corporation of China Patentee before: STATE GRID TIANJIN ELECTRIC POWER Co. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |