CN103594995A - Strain clamp - Google Patents
Strain clamp Download PDFInfo
- Publication number
- CN103594995A CN103594995A CN201310615619.9A CN201310615619A CN103594995A CN 103594995 A CN103594995 A CN 103594995A CN 201310615619 A CN201310615619 A CN 201310615619A CN 103594995 A CN103594995 A CN 103594995A
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- China
- Prior art keywords
- strain clamp
- clamp body
- expanded
- drainage plate
- expanded conductor
- 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
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 10
- 239000004020 conductor Substances 0.000 abstract description 56
- 238000002788 crimping Methods 0.000 abstract description 18
- 230000005484 gravity Effects 0.000 description 6
- 239000012211 strain insulator Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Suspension Of Electric Lines Or Cables (AREA)
Abstract
The embodiment of the invention discloses a strain clamp. The strain clamp comprises a strain clamp body, a steel anchor fixedly connected with the strain clamp body, and a guiding plate fixedly connected with the strain clamp body. The length of the strain clamp body ranges from 350mm to 400mm and comprises end point values, so that when the strain clamp is used for crimping of an expanded-diameter conductor, the crimping length between the expanded-diameter conductor and the strain clamp body can be increased, the contact area between the expanded-diameter conductor and the strain clamp body is increased, and therefore it is guaranteed that the crimping force between the expanded-diameter conductor and the strain clamp body can completely bear the tension and the gravidity which are exerted on the expanded-diameter conductor. In this way, the crimping strength of the expanded-diameter conductor is improved.
Description
Technical field
The present invention relates to ultra-high-tension power transmission line technical field, relate in particular to a kind of strain clamp.
Background technology
Expanded conductor JLK/G1A-530(630)/45 have the advantage that expense is little, lightweight, tension force is little, and therefore, this novel conductive wire will be widely used in going in China's extra-high voltage grid construction.And strain clamp NY-530(630)/45A(B) as and expanded conductor JLK/G1A-530(630)/45 important assorted golden tool, for wire being fixed on to the strain insulator string of non-rectilinear shaft tower, play anchorage effect.It is except bearing whole pulling force of wire, or electric conductor, so when concrete circuit overlap joint, must guarantee that strain clamp, when bearing wire tension, also will have good electric property.
But when the crimping for expanded conductor, there is the problem that conductor compression jointing intensity is lower in strain clamp of the prior art.
Summary of the invention
For solving the problems of the technologies described above, the embodiment of the present invention provides a kind of strain clamp, to improve in expanded conductor pressure process, and the crimp strength of expanded conductor.
For addressing the above problem, the embodiment of the present invention provides following technical scheme:
, comprising:
Strain clamp body, described strain clamp body is hollow tube, length is 350mm-400mm, comprises endpoint value;
With the steel anchor that described strain clamp body is fixedly connected with, described steel anchor and described strain clamp body horizontal positioned;
With the drainage plate that described strain clamp body is fixedly connected with, described drainage plate and vertical placement of described strain clamp body.
Preferably, described drainage plate comprises: the flat board being connected with described strain clamp body; The hollow blind pipe being connected with described flat board.
Preferably, described drainage plate is two plate drainage plates.
Preferably, described strain clamp body is hollow aluminum pipe.
Compared with prior art, technique scheme has the following advantages:
The technical scheme that the embodiment of the present invention provides, comprise: strain clamp body, the steel anchor being fixedly connected with described strain clamp body, and the drainage plate being fixedly connected with described strain clamp body, wherein, the length of described strain clamp body is 350mm-400mm, comprise endpoint value, thereby when the crimping for expanded conductor, can extend the crimping length of described expanded conductor and described strain clamp body, increase the contact area of described expanded conductor and described strain clamp body, to guarantee that the crimp force between described expanded conductor and strain clamp body can bear tension force and the gravity that described expanded conductor is subject to completely, improve the crimp strength of described expanded conductor.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the strain clamp that Fig. 1 provides for the embodiment of the present invention;
The strain clamp NY-530(630 that Fig. 2 provides for the embodiment of the present invention) the side structure schematic diagram of/45A;
The strain clamp NY-530(630 that Fig. 3 provides for the embodiment of the present invention) the side structure schematic diagram of/45B.
Embodiment
Just as described in the background section, when the crimping for expanded conductor, there is the problem that conductor compression jointing intensity is lower in strain clamp of the prior art.
Inventor studies discovery, this be due to expanded conductor adopt middle level aluminum steel dredge around frame mode, be that the middle level aluminum steel that the middle level aluminum steel of described expanded conductor is different from ordinary steel core aluminum stranded wire is compact arranged, but adopt, dredge around stranded mode, and different intervals of dredging between layer are even, to guarantee that in same twisted layer, any two adjacent aluminium single lines there will not be the phenomenon of colliding.And the length of the aluminum pipe of strain clamp of the prior art is shorter, cause when concrete circuit overlap joint, the crimping length of expanded conductor and aluminum pipe is shorter, to such an extent as to can not bear tension force and the gravity of expanded conductor completely, reduces the crimp strength of described expanded conductor.
On basis based on above-mentioned research, the embodiment of the present invention provides a kind of strain clamp, comprising:
Strain clamp body, described strain clamp body is hollow tube, length is 350mm-400mm, comprises endpoint value;
With the steel anchor that described strain clamp body is fixedly connected with, described steel anchor and described strain clamp body horizontal positioned;
With the drainage plate that described strain clamp body is fixedly connected with, described drainage plate and vertical placement of described strain clamp body.
In the technical scheme that the embodiment of the present invention provides, the length of described strain clamp body is 350mm-400mm, comprise endpoint value, thereby when the crimping for expanded conductor, can extend the crimping length of described expanded conductor and described strain clamp body, increase the contact area of described expanded conductor and described strain clamp body, to guarantee that the crimp force between described expanded conductor and strain clamp body can bear tension force and the gravity that described expanded conductor is subject to completely, improves the crimp strength of described expanded conductor.
For above-mentioned purpose of the present invention, feature and advantage can more be become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Set forth detail in the following description so that fully understand the present invention.But the present invention can be different from alternate manner described here and implements with multiple, and those skilled in the art can do similar popularization without prejudice to intension of the present invention in the situation that.Therefore the present invention is not subject to the restriction of following public concrete enforcement.
As shown in Figure 1, the strain clamp that the embodiment of the present invention provides comprises: strain clamp body 1, and described strain clamp body 1 is hollow tube, length is 350mm-400mm, comprises endpoint value; With the steel anchor 2 that described strain clamp body 1 is fixedly connected with, described steel anchor 2 and described strain clamp body 1 horizontal positioned; With the drainage plate 3 that described strain clamp body 1 is fixedly connected with, described drainage plate 3 and the vertical placement of described strain clamp body 1.
Take 1000kV ultra high voltage double loop expanded conductor JLK/G1A-530(630 below) strain clamp of/45 use is example, the strain clamp that the embodiment of the present invention is provided is that example describes.Wherein, 1000kV ultra high voltage double loop expanded conductor JLK/G1A-530(630) the strain clamp NY-530(630 of/45 use)/45A as shown in Figure 2,1000kV ultra high voltage double loop expanded conductor JLK/G1A-530(630) the strain clamp NY-530(630 of/45 use)/45B as shown in Figure 3.
In one embodiment of the invention, described strain clamp body 1 is hollow tube, described drainage plate 3 comprises: the flat board being connected with described strain clamp body 1, and the hollow blind pipe being connected with described flat board, when for expanded conductor crimping, only need stretch into through expanded conductor the hollow tube of described strain clamp body 1, and run through described strain clamp body 1, be combined with 2 crimping of steel anchor.Then, again wire jumper is stretched into the hollow blind pipe of described drainage plate 3, be combined with described drainage plate 3 crimping, can realize being electrically connected to of described wire jumper and expanded conductor, finally steel anchor 2 is articulated on the strain insulator string of strain tower, can realizes the overlap joint of UHV transmission line.
In embodiments of the present invention, the length of described strain clamp body is 350mm-400mm, comprise endpoint value, thereby when the crimping for expanded conductor, can extend the crimping length of described expanded conductor and strain clamp body, increase the contact area of described expanded conductor and strain clamp body, and then guarantee that described expanded conductor and described strain clamp body have enough contacts area, make the crimp force between described expanded conductor and strain clamp body, can bear tension force and the gravity of described expanded conductor completely, improve the crimp strength of described expanded conductor.
Preferably, the length of described strain clamp body is 350mm, thereby when between the described expanded conductor of assurance and described strain clamp body, crimp force is enough to bear the tension force and gravity of described expanded conductor, reduce the use amount of described strain clamp bulk material, reduce the cost of manufacture of described strain clamp.
Preferred, in a specific embodiment of the present invention, described strain clamp body is hollow aluminum pipe, can guarantee the electrical connection properties of described expanded conductor and described strain clamp body, also economical and practical.
In one embodiment of the invention, described drainage plate 3 is veneer drainage plate; In another embodiment of the present invention, described drainage plate 3 is two plate drainage plates, be that described drainage plate 3 adopts two plates reinforced, thereby increase the conductive area of conductor in described drainage plate 3, to prevent in drainage plate 3 because the electric current of flowing through is excessive, and cause described drainage plate 3 overheated, the phenomenon even fusing.
In addition, in this embodiment, described drainage plate 3 is two plate drainage plates, can also increase the contact area of described drainage plate 3 and described strain insulator body, thereby improves the bonding strength of described drainage plate 3 and described strain insulator body.
In sum, in the strain clamp that the embodiment of the present invention provides, the length of described strain clamp body 1 is 350mm-400mm, comprise endpoint value, thereby when the crimping for expanded conductor, can extend the crimping length of described expanded conductor and described strain clamp body 1, increase the contact area of described expanded conductor and described strain clamp body 1, to guarantee the crimp force between described expanded conductor and strain clamp body 1, can bear tension force and the gravity of described expanded conductor completely, improve the crimp strength of described expanded conductor.Described drainage plate 3 is two plate drainage plates, thereby not only can increase the conductive area of conductor in described drainage plate 3, to prevent in drainage plate 3 because the electric current of flowing through is excessive, and cause described drainage plate 3 overheated, even the phenomenon of fusing, can also increase the bonding strength between described drainage plate 3 and described strain clamp body 1.
In this specification, various piece adopts the mode go forward one by one to describe, and each part stresses is the difference with other parts, between various piece identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to embodiment illustrated herein, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. a strain clamp, is characterized in that, comprising:
Strain clamp body, described strain clamp body is hollow tube, length is 350mm-400mm, comprises endpoint value;
With the steel anchor that described strain clamp body is fixedly connected with, described steel anchor and described strain clamp body horizontal positioned;
With the drainage plate that described strain clamp body is fixedly connected with, described drainage plate and vertical placement of described strain clamp body.
2. strain clamp according to claim 1, is characterized in that, described drainage plate comprises:
The flat board being connected with described strain clamp body;
The hollow blind pipe being connected with described flat board.
3. strain clamp according to claim 2, is characterized in that, described drainage plate is two plate drainage plates.
4. strain clamp according to claim 1, is characterized in that, described strain clamp body is hollow aluminum pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310615619.9A CN103594995A (en) | 2013-11-22 | 2013-11-22 | Strain clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310615619.9A CN103594995A (en) | 2013-11-22 | 2013-11-22 | Strain clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103594995A true CN103594995A (en) | 2014-02-19 |
Family
ID=50085030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310615619.9A Pending CN103594995A (en) | 2013-11-22 | 2013-11-22 | Strain clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103594995A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529665A (en) * | 2015-12-08 | 2016-04-27 | 中国电力科学研究院 | Novel crimping strain clamp |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101719647A (en) * | 2009-12-21 | 2010-06-02 | 中国电力科学研究院 | Strain clamp for large-section lead |
| CN101752816A (en) * | 2009-12-21 | 2010-06-23 | 中国电力科学研究院 | Dead-end clamp for supporting expanded diameter conductors |
| CN203278151U (en) * | 2013-04-25 | 2013-11-06 | 广东电网公司电力科学研究院 | T-shaped compression type strain clamp for power transmission conductor on power transmission line tower |
| CN203660471U (en) * | 2013-11-22 | 2014-06-18 | 国家电网公司 | Tension-resistant clamp |
-
2013
- 2013-11-22 CN CN201310615619.9A patent/CN103594995A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101719647A (en) * | 2009-12-21 | 2010-06-02 | 中国电力科学研究院 | Strain clamp for large-section lead |
| CN101752816A (en) * | 2009-12-21 | 2010-06-23 | 中国电力科学研究院 | Dead-end clamp for supporting expanded diameter conductors |
| CN203278151U (en) * | 2013-04-25 | 2013-11-06 | 广东电网公司电力科学研究院 | T-shaped compression type strain clamp for power transmission conductor on power transmission line tower |
| CN203660471U (en) * | 2013-11-22 | 2014-06-18 | 国家电网公司 | Tension-resistant clamp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105529665A (en) * | 2015-12-08 | 2016-04-27 | 中国电力科学研究院 | Novel crimping strain clamp |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: CHINA POWER ENGINEERING CONSULTING (GROUP) CORPORATION Applicant after: ELECTRIC POWER PLANNING & ENGINEERING INSTITUTE Applicant after: Co., Ltd of Northeastern Electric Power Design Institute, China Power Engineering Consulting Group Corporation Applicant after: Co., Ltd of Huabei Power Design Inst., China Power Engineering Consulting Group Applicant after: Co., Ltd of Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Corporation Applicant after: NORTHWEST ELECTRIC POWER DESIGN INSTITUTE CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Applicant after: China Power Engineering Consulting Group Southwest Electric Power Design Institute Co., Ltd. Applicant after: NORTH CHINA POWER ENGINEERING CO., LTD. OF CHINA POWER ENGINEERING CONSULTING GROUP Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: China Power Engineering Consulting Group Corporation Applicant before: ELECTRIC POWER PLANNING & ENGINEERING INSTITUTE Applicant before: Northeastern Electric Power Design Institute, China Power Engineering Consulting Group Corporation Applicant before: Huabei Power Design Inst., China Power Engineering Consulting Group Applicant before: Central Southern China Electric Power Design Institute, China Power Engineering Consulting Group Cor Applicant before: Northwest Electric Power Design Institute, China Power Engineering Consulting Group Corporation Applicant before: Southwest Electric Power Design Institute of China Power Engineering Consulting Group Corporation Applicant before: North China Electric Power Design Institute of China Power Engineering Consulting Group Corporation |
|
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140219 |
|
| RJ01 | Rejection of invention patent application after publication |