CN107359577A - A kind of suspension assembly of wire - Google Patents
A kind of suspension assembly of wire Download PDFInfo
- Publication number
- CN107359577A CN107359577A CN201610302539.1A CN201610302539A CN107359577A CN 107359577 A CN107359577 A CN 107359577A CN 201610302539 A CN201610302539 A CN 201610302539A CN 107359577 A CN107359577 A CN 107359577A
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- CN
- China
- Prior art keywords
- wire
- intermediate plate
- wedge
- lock ring
- suspender
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- 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.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G7/00—Overhead installations of electric lines or cables
- H02G7/05—Suspension arrangements or devices for electric cables or lines
- H02G7/06—Suspensions for lines or cables along a separate supporting wire, e.g. S-hook
- H02G7/08—Members clamped to the supporting wire or to the line or cable
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Abstract
The invention discloses a kind of suspension assembly of wire, including a suspender and two holders, the suspender are bilateral symmetry, and its upper end, left end and right-hand member are equipped with connecting portion；The holder includes U-shaped bar, lock ring fixture, wedge-shaped intermediate plate；Two ends of U-shaped bar are fixedly connected with lock ring fixture；Lock ring fixture is provided with through hole along its long axis direction；Wedge-shaped intermediate plate is wrapped in through hole by lock ring fixture；Wedge-shaped intermediate plate is wrapped in wire；The internal diameter of the through hole of lock ring fixture tapers into along wire traction force direction；The inwall of through hole matches with the outer surface of wedge-shaped intermediate plate；Two holders are movably connected on the connecting portion of suspender left and right ends by U-shaped bar respectively.The present invention has eliminated dynamic bending stress of the wire near wire clamp, avoids the fatigue damage of wire completely, simple in construction, withdrawal resistance is big.Because the wire between two holders does not undertake pulling force, therefore the potential safety hazard that continued access point can be avoided to bring when continued access point is arranged between two holders.
Description
Technical field
The invention belongs to field of electrical equipment, it particularly relates to the suspension assembly of a kind of overhead power transmission conducting wire or ground wire.
Background technology
In overhead power transmission field, in order to which wire or ground wire are hung in the structures such as tangent tower, transposition tower, shaft tower, largely use suspension clamp significant to power circuit safety and electric power safety as hanging tool, its security reliability.Existing suspension clamp can be divided into two kinds, and one kind is common suspension clamp, and another kind is pre-hinged catenarian cable cleat.Suspension clamp exit wire except by quiet pulling force and the upper strata strand being induced by it to the pressure of lower floor's strand in addition to, also by alternating bending stress caused by wind shake, and tangential friction force caused by contact between each strand as caused by alternating bending, therefore, stress of the transmission pressure in wire clamp exit is the most complicated, is also easiest to that the destructions such as stranded, broken string occur in this place, and, mainly fatigue damage is destroyed, rather than strength failure.Research is found, overhead power transmission conducting wire is generally steel-cored aluminium strand, the defects of its fatigue strength and Fatigue Damage Process are different from high-tensile steel wires, and the fatigue rupture of steel wire is mainly Steel Wire Surface causes, and steel-cored aluminium strand is then mainly caused by the scratch fatigue between each layer stock silk.The stress for causing the fatigue damage of wire rod or pole stock is mainly the dynamic bending stress of alternation, rather than alternation axial tension stress.Therefore, the alternation dynamic bending stress caused by controlling the basic method of the aerial condutor fatigue damage at folder to be online to eliminate due to wind shake and wave and the tangential friction force between each layer stock silk.The working method of existing suspension clamp is that wire is passed through and is fixed in wire clip body, in the state of the horizontal pull of both sides wire is equal, suspension clamp only plays a part of equalizing contactor vertical tension, and horizontal pull then balances by the tensile strength of wire itself, working method Just because of this just make it that the stress in wire clamp exit is sufficiently complex.In order to improve anti-fatigue performance, now common common suspension clamp has made the consideration of three aspects in structure design：First, increase arc cushion block between U-bolt and wire, to reduce the lock ring extrusion stress that wire is subject to；Second, wire clamp exit is arranged to arc-shaped transition or horn shape, to reduce the degree of crook of wire；Third, it is applied in combination using multiple suspension clamps, so as to reduce the size of corner of the wire at single suspension clamp.Novel pre-hinged suspension clamp be then by wound on wire it is preformed wire is protected, it adds globality of the wire at wire clamp so that flexural deformation is more uniform, so as to reduce the size of alternation dynamic bending stress.Although common suspension clamp has certain consideration to anti-fatigue, ineffective, comparatively, Novel pre-hinged suspension clamp is better to the fatigue protection effect of wire.But Novel pre-hinged suspension clamp also has the shortcomings that its is intrinsic, it is difficult in the case where uneven pulling force is larger provide enough withdrawal resistances exactly for the thicker wire of diameter.And wire is thicker, bending stress is bigger in the case of same flexure curvature, the development of fatigue damage will be faster, therefore, can be declined to a great extent for the fatigue protection effect for the wire that the fatigue protection effect of the pre-hinged catenarian cable cleat wire larger compared with thick, load to diameter is smaller relative to diameter, load is relatively low.The wire suspension device applied at present on tangent tower, transposition tower, shaft tower can not eliminate wire alternating bending stress caused by wind shake, cannot also be inherently eliminated the fatigue damage of wire.With the development of UHV transmission technology, the application of major diameter wire is more and more extensive, the also more and more higher of the requirement safe for operation to wire, therefore, it is necessary to study the wire suspension device for making transmission line of electricity have more security and durability.
The content of the invention
In order to overcome the shortcomings of that wire fatigue damage can not be eliminated in the prior art, it is an object of the invention to provide a kind of suspension assembly of overhead power transmission conducting wire, it is in addition to the characteristics of bearing capacity is strong, withdrawal resistance is big, anti-corona, moreover it is possible to fundamentally thoroughly solves wire Fatigue Damage Problem.
Technical scheme
A kind of suspension assembly of wire, including a suspender and two holders, suspender are that symmetrical herringbone or triangle or cross or circular configuration, its upper end, left end and right-hand member are equipped with connecting portion.Here suspender left and right is related such that：Under normal operating conditions, the line centered on vertical line where the connecting portion of suspender upper end a, if bearing of trend of transmission pressure is set to the left side of center line, then another bearing of trend of wire is the right side of center line.So-called connecting portion, the structure that exactly suspender is connected and set with other structures part for convenience.Holder is used to clamp wire and transmit the axial tension load of wire, and holder includes U-shaped bar, lock ring fixture and wedge-shaped intermediate plate, wherein, lock ring fixture is provided with through hole along its long axis direction, and two ends of U-shaped bar are fixedly connected with lock ring fixture；Wedge-shaped intermediate plate is wrapped in through hole by lock ring fixture；Wedge-shaped intermediate plate is wrapped in wire；The internal diameter of the through hole of lock ring fixture tapers into along wire traction force direction, and the inwall of through hole matches with the outer surface of wedge-shaped intermediate plate；Lock ring fixture plays hoop constraint and acts on and provide enough withdrawal resistances, and limit wire by the self-locking action of wedge-shaped intermediate plate slips from holder.The connecting portion of suspender upper end is connected with insulator chain or hanging plate, and the connecting portion of suspender left end is flexibly connected with the U-shaped bar on a holder, and the connecting portion of suspender right-hand member is flexibly connected with the U-shaped bar on another holder.Suspender both provided vertical holding power, while also carry the wire tension by holder transmission.Wire tension is completely transferred on holder by holder excellent clamping effect, the wire between two holders is not undertaken pulling force.
Further, the concrete form of three connecting portions on suspender can be with identical, can also be different, and its form should be adapted with the architectural feature of connecting object, and the present invention provides following several structure types here：When with Curved hook type as crane hook-shaped；Second, link type, including but not limited to ball-eye and U-shaped link；Third, the structure of hangers and bolt composition, including but not limited to right angle hanging plate, socket-clevis eye；Three kinds of forms can be flexibly connected with U-shaped bar.
Further, pad to be stained with the soft foil metal of diamond dust, the confficient of static friction being so favorably improved between wedge-shaped intermediate plate and wire, holds effect so as to increase wrapping up in for holder, further avoids the slippage of wire between wedge-shaped intermediate plate and wire.
Further, padded between wedge-shaped intermediate plate and wire with rubber intermediate plate.Rubber intermediate plate belongs to elastic soft material, is made up of top-quality rubber and center reinforcemen, has larger tensile strength, ageing-resistant.Pad is with rubber intermediate plate between wedge-shaped intermediate plate and wire, on the one hand extrusion stress of the wedge-shaped intermediate plate to wire can be reduced, reduces damage of the withdrawal resistance to conductive line surfaces, on the other hand, because the coefficient of friction of metal and metal is less than the coefficient of friction of metal and rubber, wrapping up in for holder can be improved and hold effect；Rubber intermediate plate is bonded in the inner surface of wedge-shaped intermediate plate.
Further, suspender both can be one without the entirety of segmentation or formed by the component combination of some separation.When using the component combination of separation, suspender can be divided into hanger bar and loading plate two parts, vertical through hole is provided with the middle part of loading plate so that hanger bar passes through, hanger bar lower end is threaded and matched nut；One connecting portion is arranged on the upper end of hanger bar, and another two connecting portion is separately positioned on the both ends of loading plate.
Further, lock ring fixture is involuted by two identical lock ring intermediate plates, and the both ends of U-shaped bar are respectively fixedly connected in the middle part of the outer surface of the larger side of lock ring clip openings；The quantity of wedge-shaped intermediate plate is two or three.
Further, the outer surface of suspender and holder sprays one layer of flexible ceramic insulating material, and the thickness of flexible ceramic sprayed coating is 0.1 ~ 0.8 millimeter, and it is the bloom standard for improving suspension assembly that it, which is acted on,.
Further, suspender, wedge-shaped intermediate plate, lock ring fixture and U-shaped bar are manufactured using malleable cast iron or high-strength aluminum alloy material.Suspension assembly surface sets anticorrosive coat, galvanizing aseptic technic can be used when using malleable cast iron, surface anodization can be used to carry out anti-corrosion when using aluminum alloy materials, for under the Special Corrosion environment such as coastal, acid rain, industrial atmosphere, special anticorrosive paint can be used to carry out anti-corrosion, such as zinc-rich paint, on rust paint, nano paint and fluoro-containing coating etc..
Further, connecting portion is made up of the hangers and bolt of two tape punchings, and bolt is through the perforation on two hangers, and now, bolt plays a part of bearing.
Further, the length of wedge-shaped intermediate plate is 80 ~ 120 millimeters, and the inclination angle of inclined plane size of wedge-shaped intermediate plate is to meet that wedge-shaped intermediate plate is capable of the condition of self-locking as control standard；Lock ring fixture is involuted by two halves, and its length is not less than the length of wedge-shaped intermediate plate.
Further, the lower end of suspender is provided with connecting portion, is concatenated two or more suspension assemblies with facilitating, and meets the suspension requirement of split conductor vertically arranged.
Compared with using suspension clamp as the conventional wires suspension equipment of representative, a kind of sharpest edges of the suspension assembly of wire provided by the present invention are that it almost completely eliminates the wire fatigue damage as caused by suspension equipment.For suspension clamp, inevitably there is bending motion in wire in wire clamp exit.And for the present invention, because the pulling force of wire is completely transferred on holder, and holder is to be flexibly connected with suspender, therefore, the wire of holder and tension side remains point-blank, and under outer force-disturbance, holder does overall translation with wire, wire will not produce the bending stress of alternation near wire clamp, and frictionally damage will not be also produced between wire ectonexine strand.The holder length of the present invention is longer, and the contact area of wire and holder is big, plus protection of the rubber intermediate plate to wire, the shear stress of wire can be dispersed in longer line segment, so as to which the stress concentration degree of wire be greatly reduced.The present invention is transferred on suspension assembly equivalent to by fatigue damage caused by wind shake from wire, clearly, anti-fatigue ability of the anti-fatigue ability of suspension assembly by particular design much stronger than wire in itself, and, it is flexibly connected due to being used between suspender and holder, therefore the bending stress of alternation will not be produced inside suspension assembly, therefore the present invention can significantly improve the security and durability of transmission pressure.
Holder of the present invention realizes the fixation to wire using the self-locking action of wedge-shaped intermediate plate, no matter the tensile loads of wire have much, as long as the hoop constraint power of lock ring fixture is not above its strength failure standard, then wire would not slip from holder, therefore, the present invention is entirely capable of meeting in engineering the requirement to bearing capacity and withdrawal resistance, particularly major diameter wire, big span line project in more adaptability.In addition, structure of the present invention is more round and smooth, the flexible ceramic insulating material plus surface spraying, therefore with good anti-corona performance.
A benefit for being difficult to expect can be produced using the present invention.In the case of using traditional suspension clamp, if because certain reason produces broken string ground fault between certain adjacent tangent tower in strain section, it is necessary to broken string is changed as early as possible and continued access, there is two kinds of rescuing schemes at present：First, whole strain section is changed together, second, only changing a bit of wire near breakpoint；The advantages of second scheme is that repairing speed is fast, and shortcoming is that continued access point is circuit weak spot, potential safety hazard under tension be present；And the first scheme can then overcome the shortcomings that scheme two, but quantities is larger, and repairing speed is slow；Because line-outage contingency is extremely serious, emergency repair time is very urgent, therefore using second of Rush Repair Scheme in most of practices.In the case of the present invention, second of rescuing scheme can be used, only change a bit of wire near breakpoint, but the splicing point of wire is arranged between two holders of suspension assembly, because the wire between two holders of suspension assembly is not subject to pulling force effect, therefore splicing point will not turn into the potential safety hazard of circuit.So both ensure the line security after repairing, salvaging amount is greatly reduced again, saves the time.
Brief description of the drawings
Fig. 1 is a kind of overall structure diagram of the present invention
Fig. 2 is a kind of overall structure diagram of suspender
Fig. 3 is suspender another kind overall structure diagram
Fig. 4 is a kind of overall structure diagram of holder
Fig. 5 is holder A-A ' profiles in Fig. 4
Fig. 6 is holder B-B ' profiles in Fig. 4
Fig. 7 is a kind of structural representation of the suspender of platy morphology
1. 22. lock ring fixture of suspender 2. holder, 3. wire, 11. loading plate, 12. hangers, 13. bolt, 14. nut, 15. safety vent, 16. Antiskid needle, 17. hanger bar, 18. hanging hole 21.U types bar, the 23. wedge-shaped lock ring bolt of 24. rubber intermediate plate of intermediate plate 25.
Embodiment
The present invention is described in further detail with reference to embodiment, but the implementation of the present invention is not limited to this.
Embodiment 1：As shown in Fig. 1 ~ Fig. 6, a kind of suspension assembly of wire, including a suspender（1）With two holders（2）, suspender（1）For symmetrical structure, by hanger bar（17）And loading plate（11）Composition, hanger bar（17）Upper end sets the U-shaped hangers of tape punching（12）, hangers（12）Upper installation bolt（13）.Hangers（12）And bolt（13）Suspender is formed together（1）The connecting portion of upper end, for whole suspension assembly to be connected into insulator chain or hanging plate.Loading plate（11）Middle part is provided with vertical through hole, hanger bar（17）Pass through hanger bar after through the through hole（17）The screw thread and corresponding nut that lower end is set（14）To hold loading plate（11）.Loading plate（11）Both ends are set and hanger bar（17）The connecting portion of upper end same form.Holder（2）By U-shaped bar（21）, lock ring fixture（22）, wedge-shaped intermediate plate（23）And rubber intermediate plate（24）Form, wherein rubber intermediate plate（24）Quantity is two, each semicircular in shape on cross section, two rubber intermediate plates（24）To after being combined just by wire（3）It is fully wrapped around.Wedge-shaped intermediate plate（23）It is arc on cross section, opening angle is is slightly less than 120 °, three identical wedge shape intermediate plates（23）Annular is surrounded by rubber intermediate plate（24）Parcel, wedge-shaped intermediate plate（23）Long 80 ~ 120 millimeters, the inclination angle on its surface is 6 °.Lock ring fixture（22）Involuted by two hemiidentic parts, using lock ring bolt（25）By lock ring fixture（22）Two parts fastening be an entirety, lock ring fixture（22）In adjacent lock ring bolt（25）Between ribbing to increase the intensity of structural member.Lock ring fixture（22）Length be more than wedge-shaped intermediate plate（23）.Lock ring fixture（22）Through hole is provided with along long axis direction, also, is linearly reduced along wire lead, through hole internal diameter, the inclination angle that inwall shrinks and wedge-shaped intermediate plate（23）The inclination angle on surface is consistent, ensures wedge-shaped intermediate plate（23）With lock ring fixture（22）The fitting of inwall.U-shaped bar（21）Both ends be respectively fixedly connected with lock ring fixture（22）In the middle part of the outer surface of the larger side of two parts opening, fixed form is welding.Two holders（2）Pass through U-shaped bar thereon respectively（21）It is movably connected in suspender（1）Left and right ends connecting portion on, in the present embodiment i.e. be connected to loading plate（11）Both ends.The agent structure of the present invention is manufactured using high-strength aluminum alloy material, and surface carries out anti-corrosion using anode oxidation process.All structures are mellow and full as far as possible, avoid the occurrence of cusped edge position, with anticorona generation.
Other embodiment：The slight changes on the basis of embodiment 1, other embodiment is can obtain, because the present invention is simple in construction, in order that description is more succinct clear, only parts, change mode and the principle of making change are elaborated below, and part same as Example 1 is then repeated no more.Embodiment 1 can be changed mode is a lot, such as by rubber intermediate plate（24）With wedge-shaped intermediate plate（23）An entirety directly is bonded as with seccotine, is so easy to the assembling of worker；Rubber intermediate plate can also be cancelled（24）Use, and in wedge-shaped intermediate plate（23）And wire（3）Between pad to be stained with the soft foil metal of diamond dust, this scheme can not only dramatically increase wrapping up in for holder and hold effect, and durability is fine, the also very little of the damage to conductive line surfaces, diamond dust Direct Uniform can be also bonded in wedge-shaped intermediate plate certainly（23）Inner surface, effect are the same；Wedge-shaped intermediate plate（23）Quantity can also be two or four, it is preferred that three；Wedge-shaped intermediate plate（23）Surface angle can also change, as long as the tangent value of its surface angle is less than wire（3）With wedging intermediate plate（23）Between SimMan universal patient simulator, so as to ensure wire（3）Smooth locking；U-shaped bar（21）With lock ring fixture（22）Between can be fixedly connected with bolt；Lock ring fixture（22）Two-part lock ring mode can also be with U-bolt common on traditional suspension clamp come lock ring；Loading plate（11）The connecting portion at both ends can be arranged to Curved hook type as shown in Figure 3, and now, the end of hook is provided with safety vent（15）, two safety vents（15）Between connected with more aluminum steels after holder can be completely eliminated（2）From suspender（1）On because of high vibration the possibility of escape；As shown in fig. 7, suspender（1）Indivisible entirety can be made, for example makes triangle, herringbone or criss-cross plate, upper end, left end and the right-hand member of plate are with hanging hole（18）As connecting portion；Suspender（1）Effect be exactly by two holders（2）It is flexibly connected and is suspended on the hanging plate on insulator chain or below insulator chain, as long as meets that this is required；In order to reduce the generation of corona, in addition to this round and smooth measure for doing body structure surface as far as possible, one layer of flexible ceramic insulating material can also be sprayed in the outer surface of the present invention, the thickness of flexible ceramic sprayed coating is 0.1 ~ 0.8 millimeter, further to improve the bloom standard of suspension assembly, spraying coating process may refer to Application No. 98111265.X patent of invention.
It is described above, only it is presently preferred embodiments of the present invention, any formal limitation is not done to the present invention, any simply modification, the equivalent variations that every technical spirit according to the present invention is made to above example, each falls within protection scope of the present invention.
Claims (10)
1. a kind of suspension assembly of wire, including a suspender and two holders, it is characterised in that：The suspender is bilateral symmetry, and its upper end, left end and right-hand member are equipped with connecting portion；The holder includes U-shaped bar, lock ring fixture, wedge-shaped intermediate plate；Lock ring fixture is provided with through hole along its long axis direction；Two ends of U-shaped bar are fixedly connected with lock ring fixture；Wedge-shaped intermediate plate is wrapped in through hole by lock ring fixture；Wedge-shaped intermediate plate is wrapped in wire；The internal diameter of the through hole of lock ring fixture tapers into along wire traction force direction；The inwall of through hole matches with the outer surface of wedge-shaped intermediate plate；The connecting portion of suspender upper end is connected with insulator chain or hanging plate, and the connecting portion of suspender left end is flexibly connected with the U-shaped bar on a holder, and the connecting portion of suspender right-hand member is flexibly connected with the U-shaped bar on another holder.
A kind of 2. suspension assembly of wire according to claim 1, it is characterised in that：Padded between the wedge-shaped intermediate plate and wire to be stained with the soft foil metal of diamond dust.
A kind of 3. suspension assembly of wire according to claim 1, it is characterised in that：Pad is with rubber intermediate plate between the wedge-shaped intermediate plate and wire.
A kind of 4. suspension assembly of wire according to claim 1, it is characterised in that：The suspender includes hanger bar and loading plate, vertical through hole is provided with the middle part of loading plate so that hanger bar passes through, hanger bar lower end is threaded and matched nut；One connecting portion is arranged on the upper end of hanger bar, and another two connecting portion is arranged on loading plate.
A kind of 5. suspension assembly of wire according to claim 1, it is characterised in that：The lock ring fixture is put together by two identical lock ring intermediate plates, and the both ends of U-shaped bar are respectively fixedly connected in the middle part of the outer surface of the larger side of lock ring clip openings；The quantity of the wedge-shaped intermediate plate is two or three.
A kind of 6. suspension assembly of wire according to claim 1, it is characterised in that：The outer surface of suspender and holder sprays one layer of flexible ceramic insulating material, and the thickness of flexible ceramic sprayed coating is 0.1 ~ 0.8 millimeter.
A kind of 7. suspension assembly of wire according to claim 1, it is characterised in that：Suspender, wedge-shaped intermediate plate, lock ring fixture and U-shaped bar are manufactured using malleable cast iron or high-strength aluminum alloy material.
A kind of 8. suspension assembly of wire according to claim 1, it is characterised in that：The connecting portion is made up of the hangers and bolt of two tape punchings, and bolt is through the perforation on two hangers.
A kind of 9. suspension assembly of wire according to claim 1, it is characterised in that：The length of the wedge-shaped intermediate plate is 80 ~ 120 millimeters, and the length of lock ring fixture is not less than the length of wedge-shaped intermediate plate.
A kind of 10. suspension assembly of wire according to claim 1, it is characterised in that：The lower end of suspender is provided with connecting portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610302539.1A CN107359577A (en) | 2016-05-09 | 2016-05-09 | A kind of suspension assembly of wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610302539.1A CN107359577A (en) | 2016-05-09 | 2016-05-09 | A kind of suspension assembly of wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107359577A true CN107359577A (en) | 2017-11-17 |
Family
ID=60271130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610302539.1A Pending CN107359577A (en) | 2016-05-09 | 2016-05-09 | A kind of suspension assembly of wire |
Country Status (1)
| Country | Link |
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| CN (1) | CN107359577A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912066A (en) * | 2019-12-11 | 2020-03-24 | 国家电网有限公司 | Overhead sleeve device capable of preventing lightning stroke and separation damage |
| CN112054468A (en) * | 2020-09-24 | 2020-12-08 | 云南电网有限责任公司电力科学研究院 | Device for recovering mechanical property of wire insulating layer |
| WO2023202013A1 (en) * | 2022-04-21 | 2023-10-26 | 云南电网有限责任公司德宏供电局 | Live working tool for 10kv overhead wire bridging |
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| JP2011015497A (en) * | 2009-06-30 | 2011-01-20 | Asahi Electric Works Ltd | Wire anchor clamp |
| CN202405723U (en) * | 2011-11-23 | 2012-08-29 | 绍兴电力局 | Combined structure for suspension insulator strings and strain clamps |
| CN203243001U (en) * | 2013-05-23 | 2013-10-16 | 渑池县电业总公司 | Insulating strain wire clamp |
| CN204046106U (en) * | 2014-09-23 | 2014-12-24 | 永固集团股份有限公司 | Strain clamp |
| CN205610165U (en) * | 2016-05-09 | 2016-09-28 | 田庄 | Suspension group of wire |
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2016
- 2016-05-09 CN CN201610302539.1A patent/CN107359577A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011015497A (en) * | 2009-06-30 | 2011-01-20 | Asahi Electric Works Ltd | Wire anchor clamp |
| CN202405723U (en) * | 2011-11-23 | 2012-08-29 | 绍兴电力局 | Combined structure for suspension insulator strings and strain clamps |
| CN203243001U (en) * | 2013-05-23 | 2013-10-16 | 渑池县电业总公司 | Insulating strain wire clamp |
| CN204046106U (en) * | 2014-09-23 | 2014-12-24 | 永固集团股份有限公司 | Strain clamp |
| CN205610165U (en) * | 2016-05-09 | 2016-09-28 | 田庄 | Suspension group of wire |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110912066A (en) * | 2019-12-11 | 2020-03-24 | 国家电网有限公司 | Overhead sleeve device capable of preventing lightning stroke and separation damage |
| CN112054468A (en) * | 2020-09-24 | 2020-12-08 | 云南电网有限责任公司电力科学研究院 | Device for recovering mechanical property of wire insulating layer |
| WO2023202013A1 (en) * | 2022-04-21 | 2023-10-26 | 云南电网有限责任公司德宏供电局 | Live working tool for 10kv overhead wire bridging |
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Application publication date: 20171117 |