CN201369541Y - Outdoor connecting terminal of shrinking type high-tension cables - Google Patents
Outdoor connecting terminal of shrinking type high-tension cables Download PDFInfo
- Publication number
- CN201369541Y CN201369541Y CNU2009201453179U CN200920145317U CN201369541Y CN 201369541 Y CN201369541 Y CN 201369541Y CN U2009201453179 U CNU2009201453179 U CN U2009201453179U CN 200920145317 U CN200920145317 U CN 200920145317U CN 201369541 Y CN201369541 Y CN 201369541Y
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- connecting terminal
- outdoor connecting
- insulated tube
- pipe
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Abstract
The utility model discloses a connecting accessory of electrical cables, in particular to an outdoor connecting terminal of shrinking type high-tension cables, which is suitable for 24kV high-tension cables, is conveniently installed, and does not need fire work during installation, and is safe and reliable. The outdoor connecting terminal comprises a stress pipe, an insulating pipe and supporting strips, wherein the material quality of the insulating pipe adopts silicon rubber, the insulating pipe is a hollow structure, the external side of the insulating pipe is provided with more than one umbrella skirt, the inner of the insulating pipe is provided with the stress pipe, and the supporting strips are inserted on the two sides of the inner stress pipe of the insulating pipe. The outdoor connecting terminal does not need fire work and special tools during the installation process, is simply and conveniently installed, is not limited, can not cause insulating dead corners, is reliably insulated, can not change the wrapping force of the terminal due to the operation temperature of the cables after installation, has no air gaps, no generation of the click breaking-through, and wide application, and is suitable for damp, cool and heavy polluted areas.
Description
Technical field
The utility model discloses a kind of 24kV power cable coupling, particularly a kind of the convenient of 24kV high-tension cable that be applicable to installed, and need not get angry the outdoor connecting terminal of safe and reliable cold-shrink type high-tension cable during installation.
Background technology
Along with the fast development of science and technology, the particularly generally use of XLPE power cable and electric switch equipment, make electric cable fitting application also more and more widely, simultaneously, accordingly also more and more higher to the requirement of its power supply stability and security performance.Outdoor connecting terminal requisitely will be adopted in the junction of cable and cable, and outdoor connecting terminal of the prior art all is to adopt heat shrinking material to make, and please referring to accompanying drawing 1, is pyrocondensation outdoor terminal scheme of installation in the prior art shown in Fig. 1.At present, the pyrocondensation outdoor terminal is the layering moulding, at first stress tube 1 is inserted in the cable shield cut-off part, reaching the purpose that electric field that the cable cutting place is produced is evacuated, and then respectively insulated tube 2 and full skirt 3 is inserted in cable, to increase its creepage distance.Yet, the outdoor connecting terminal of this thermal shrinkage type exists its intrinsic shortcoming, first, after the permanent operation of power cable, the thermal shrinkage type outdoor terminal can internal diameter becomes big along with the temperature rising, do not dwindle but do not reduce with temperature, its coating power on power cable is reduced, can not reach the effect of good waterproof and increase creepage distance, and then appearance port one and port two lap-joint's defective tightness as shown in fig. 1, make outdoor terminal easily advance the tide water inlet, if the cable water inlet, when particularly water infiltrates into the high pressure place, will directly produce creepage short circuit, consequence is hardly imaginable, and after the cable water inlet, through long-play, easily produce water tree, will have a strong impact on the useful life of cable; Second, because existing outdoor terminal all is a thermal shrinkage type, therefore in the installation process, unavoidably must get angry, so that its heating is installed, like this, give the many construction sites that can not get angry, cause many potential safety hazards as inflammable and explosive places such as oil, chemical plant, mines, on reality is used, have many unpredictalbe risks, also bring a lot of limitation simultaneously to construction and installation.
The thermal shrinkage type outdoor terminal can change along with variation of temperature after contraction, and port lap-joint is more, makes its operation have potential danger, the Yi Jinchao water inlet.Simultaneously, power cable shielding cut-off part electric field is concentrated, and easily causes insulation breakdown.Therefore electric cable fitting must be carried out the water-proofing treatment and the electric field evacuation problem of port lap-joint, could more meet safety standard and normal the use.
In view of this, how to provide a kind of electric cable fitting that can effectively solve power cable shielding cut-off part field intensity concentration problem and water-tight performance, real is one of important topic.
The utility model content
Adopt the thermal shrinkage type outdoor terminal to connect at the above-mentioned cable bond of the prior art place that mentions, phenomenons such as not only easily aging, Yi Chao, generation water inlet are caused danger, and in installation process, must get angry, cause shortcomings such as potential safety hazard and use limitation, the utility model provides a kind of new outdoor connecting terminal, it adopts silicon rubber is raw material, with stress tube, insulated tube and full skirt global formation, and be provided with fluid sealant two ports, not only install simply, and the result of use after effectively guaranteeing to install.
The technical scheme that the utility model technical solution problem adopts is: the outdoor connecting terminal of a kind of cold-shrink type high-tension cable, outdoor connecting terminal comprises stress tube, insulated tube, support bar, the insulated tube material adopts silicon rubber, insulated tube is a hollow structure, the insulated tube outside is provided with more than one full skirt, be provided with stress tube in the insulated tube, be fitted with support bar in the insulated tube internal stress pipe.
The technological means that the utility model adopts further comprises:
The inboard two-port of described insulated tube place is provided with waterproof gasket cement respectively.
Described stress tube, insulated tube and full skirt design for one.
Described full skirt is provided with 5.
Angle between described full skirt bottom and the central shaft is 90 °, and the angle between full skirt top and the central shaft is 93 °.
The beneficial effects of the utility model are: the utility model adopts state-of-the-art full shrinkage material to make, in installation process, need not get angry and special tool(s), install simple and conveniently, be not subjected to any limitation, even but use in inflammable and explosive places such as oil, chemical plant, mine also normal mounting; On the other hand, the silastic material that the utility model adopts has constant convergent force, and the bending because of cable does not cause the insulation dead angle, insulation is reliable, and can not change its coating power after installing because of the operating temperature of cable, and there is not air gap, can not produce a puncture; The third aspect, the utility model adopt bonding each connecting portion of special seal gum two ports, realize integral sealing, good seal performance, the interruption of service of stopping and avoiding causing because of atmospheric environment or moisture; Fourth aspect because the characteristic of product itself, makes to the utlity model has that anti-soil is dirty, ageing-resistant, hydrophobicity is good, high and low temperature resistance is superior that utilization extensively is suitable for the use of moist cold and heavily contaminated area.
Description of drawings
Fig. 1 is an outdoor terminal cross-sectional view of the prior art.
Fig. 2 is the utility model cross-sectional view.
Fig. 3 is the utility model perspective view.
Fig. 4 is the utility model band support bar mounting structure schematic diagram.
Among the figure, 1-stress tube, 2-insulated tube, 3-full skirt, 4-fluid sealant, 5-support bar.
Embodiment
Present embodiment is the utility model preferred implementation, and other all its principles are identical with present embodiment or approximate with basic structure, all within the utility model protection range.
Silicon rubber uses recent two decades abroad as the electric insulation material, comes across the twentieth century initial stage at home.Silicon rubber is that the polymers molecule is the chain structure that is linked to be by SI-O (being silicon-oxygen) key.And because of its unique molecular structure, make silicon rubber have better thermal endurance, electrical insulating property, chemical stability and anti-flammability etc., progressively be used for the production of electric cable fitting as novel dielectric by people than other General Purpose Rubbers.
Please referring to accompanying drawing 2 and accompanying drawing 3, the utility model mainly is applicable to the insulation shielding place of 24KV high voltage power cable.Basic structure of the present utility model is similar to outdoor terminal of the prior art, mainly comprise insulated tube 2, stress tube 1, full skirt 3, in the present embodiment, insulated tube 2 adopts silicon rubber to make, insulated tube 2 is a hollow tubular structure, be main body of the present utility model, insulated tube 2 inside are provided with stress tube 1, the stress tube of high-k can extend the cut-off part of insulation screen, alleviate the electric field concentration problem, improved the Electric Field Distribution of insulation screen, reduced insulation breakdown, insulated tube 2 outsides are fixed with more than one full skirt 3, in the present embodiment, full skirt 3 is provided with 5, and the bottom of full skirt and the angle between the central shaft are 90 °, angle between full skirt top and the central shaft is 93 °, adopts full skirt 3 can increase whole creepage distance of the present utility model.Insulated tube 2 inside are fitted with support bar 5, support bar 5 is in stress tube 1, and there is part expose at insulated tube 2 two ends, when using, the utility model is sleeved on the cable bond place, extracts support bar 5 out in insulated tube 2, the utility model can be contracted on the power cable by nature by the elastic force of himself, need not get angry, easy for installation.In order to guarantee can not to intake when the utility model uses, thoroughly eliminate safe hidden trouble, the utility model is provided with waterproof gasket cement 4 in inboard, 2 two ports of insulator, when waterproof gasket cement 4 is produced at insulator 2, promptly fill before insulator 2 expansions, after extracting supporter out, waterproof gasket cement 4 promptly is coated on the power cable, guarantee the utility model in when operation, can not produce in the product ponding because running environment high humidity or smog are serious or enter accident potential such as moisture and take place.
In the present embodiment, stress tube 1, insulated tube 2 and the design of full skirt 3 one, stress tube 1 adopts high dielectric constant silastic, insulated tube 2 and cluster parachute 3 adopt high anti-tear insulating cement global formation, avoid producing the insulation dead angle, cause the interlayer air gap, form the continuous discharge space, effectively prevent insulated tube 2 quick agings.
The utility model when mounted, only needing to pull out support bar in insulated tube 2 just can make the utility model tightly coat power cable, it is convenient rapidly to install, can not form the insulation dead angle, and reach and the effect of power cable with " breathing ", sealed waterproof effect is better, the performance that in the operation power process, has safety and stability, helping desired convenient the installation and the working specification of security of operation on the market now, is the product that is worthy to be popularized, and has very strong competitiveness.
Claims (5)
1. the outdoor connecting terminal of a cold-shrink type high-tension cable, it is characterized in that: described outdoor connecting terminal comprises stress tube, insulated tube, support bar, the insulated tube material adopts silicon rubber, insulated tube is a hollow structure, the insulated tube outside is provided with more than one full skirt, be provided with stress tube in the insulated tube, be fitted with support bar in the insulated tube internal stress pipe.
2. the outdoor connecting terminal of cold-shrink type high-tension cable according to claim 1 is characterized in that: the inboard two-port of described insulated tube place is provided with waterproof gasket cement respectively.
3. the outdoor connecting terminal of cold-shrink type high-tension cable according to claim 1, it is characterized in that: described stress tube, insulated tube and full skirt design for one.
4. according to claim 1 or the outdoor connecting terminal of 2 or 3 described cold-shrink type high-tension cables, it is characterized in that: described full skirt is provided with 5.
5. according to claim 1 or the outdoor connecting terminal of 2 or 3 described cold-shrink type high-tension cables, it is characterized in that: the angle between described full skirt bottom and the central shaft is 90 °, and the angle between full skirt top and the central shaft is 93 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201453179U CN201369541Y (en) | 2009-03-18 | 2009-03-18 | Outdoor connecting terminal of shrinking type high-tension cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201453179U CN201369541Y (en) | 2009-03-18 | 2009-03-18 | Outdoor connecting terminal of shrinking type high-tension cables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201369541Y true CN201369541Y (en) | 2009-12-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201453179U Expired - Fee Related CN201369541Y (en) | 2009-03-18 | 2009-03-18 | Outdoor connecting terminal of shrinking type high-tension cables |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201369541Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347598A (en) * | 2011-08-23 | 2012-02-08 | 上海永锦电气集团有限公司 | Cable terminal with stress pipe |
| CN103595010A (en) * | 2013-12-03 | 2014-02-19 | 深圳市沃尔核材股份有限公司 | Insulted sealing method for unequal-diameter object |
| CN103595009A (en) * | 2013-12-03 | 2014-02-19 | 深圳市沃尔核材股份有限公司 | Cold-contraction cable accessory |
| CN103595008A (en) * | 2013-12-03 | 2014-02-19 | 深圳市沃尔核材股份有限公司 | Cold-contraction seal cap |
| CN103812075A (en) * | 2012-11-14 | 2014-05-21 | 江苏澳能电力电缆附件有限公司 | Cable chilling shrinkage terminal |
| CN103869104A (en) * | 2014-04-02 | 2014-06-18 | 上海华普电缆有限公司 | Stress ring for partial discharge tests and high-voltage insulation tests on power cable of 10 kV or lower |
| CN108565807A (en) * | 2018-05-29 | 2018-09-21 | 国网四川阿坝州电力有限责任公司 | A kind of plateau type 10kV high-tension distributing line composite material tubes |
| CN114566910A (en) * | 2022-03-14 | 2022-05-31 | 国网宁夏电力有限公司吴忠供电公司 | Overhead transmission line insulating drainage wire based on overhead insulated cable and preparation method thereof |
-
2009
- 2009-03-18 CN CNU2009201453179U patent/CN201369541Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102347598A (en) * | 2011-08-23 | 2012-02-08 | 上海永锦电气集团有限公司 | Cable terminal with stress pipe |
| CN103812075A (en) * | 2012-11-14 | 2014-05-21 | 江苏澳能电力电缆附件有限公司 | Cable chilling shrinkage terminal |
| CN103595010A (en) * | 2013-12-03 | 2014-02-19 | 深圳市沃尔核材股份有限公司 | Insulted sealing method for unequal-diameter object |
| CN103595009A (en) * | 2013-12-03 | 2014-02-19 | 深圳市沃尔核材股份有限公司 | Cold-contraction cable accessory |
| CN103595008A (en) * | 2013-12-03 | 2014-02-19 | 深圳市沃尔核材股份有限公司 | Cold-contraction seal cap |
| CN103595010B (en) * | 2013-12-03 | 2016-09-07 | 深圳市沃尔核材股份有限公司 | A kind of insulated enclosure method of non-isometrical object |
| CN103869104A (en) * | 2014-04-02 | 2014-06-18 | 上海华普电缆有限公司 | Stress ring for partial discharge tests and high-voltage insulation tests on power cable of 10 kV or lower |
| CN108565807A (en) * | 2018-05-29 | 2018-09-21 | 国网四川阿坝州电力有限责任公司 | A kind of plateau type 10kV high-tension distributing line composite material tubes |
| CN114566910A (en) * | 2022-03-14 | 2022-05-31 | 国网宁夏电力有限公司吴忠供电公司 | Overhead transmission line insulating drainage wire based on overhead insulated cable and preparation method thereof |
| CN114566910B (en) * | 2022-03-14 | 2024-03-01 | 国网宁夏电力有限公司吴忠供电公司 | Overhead transmission line insulation drainage wire based on overhead insulated cable and preparation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20110318 |