CN201956653U - Cable middle joint for railways - Google Patents
Cable middle joint for railways Download PDFInfo
- Publication number
- CN201956653U CN201956653U CN2011200514990U CN201120051499U CN201956653U CN 201956653 U CN201956653 U CN 201956653U CN 2011200514990 U CN2011200514990 U CN 2011200514990U CN 201120051499 U CN201120051499 U CN 201120051499U CN 201956653 U CN201956653 U CN 201956653U
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- stress
- cable
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- railway
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Abstract
The utility model provides a cable middle joint for railways, which comprises stress cones, a stress pipe, a prefabricated insulation body, a copper connecting pipe, a copper shielding net and a constant-force spring, wherein the stress cones and the stress pipe are arranged in the prefabricated insulation body, the stress cones are arranged at both ends of the prefabricated insulation body, the stress pipe is arranged in the middle in the prefabricated insulation body, the copper connecting pipe is arranged at the inner side of the stress pipe, in addition, the length of the copper connecting pipe is shorter than that of the stress pipe, the copper shielding net is arranged around the prefabricated insulation body and surrounds a cable joint, and a grounding wire and the copper shielding net are tightly clamped through the constant-force spring. The cable middle joint for the railways has the characteristics that the installation is convenient, no oil is adopted, the anti-explosion effect is realized, the size is small, the weight is light, the maintenance is easy, and the like.
Description
Technical field
The utility model relates to the electric railway electric cable accessories, relates in particular to cable intermediate joint.
Background technology
Make a general survey of countries in the world railway development history, the flourish of electric railway has been inexorable trend, expects 2015, and the countries and regions of building high-speed electric railway in the world will reach 23, and the high-speed electric railway mileage will be broken through 30000km.Till that time, the electric railway mileage of China will only be positioned at after the Russia, leap to the second place of the world.And all will enter world's rank of advanced units at the aspects such as railway transporting amount proportion, electric railway technical equipment and train running speed that electrization rate, electrified complex line rate, electric railway are born.Under these circumstances, electric railway rated voltage 27.5kV electric cable accessories product of the present utility model, it is used on the defeated modified line road in the electric railway of 27.5/48kV electric pressure, is the cold-contraction type product, with the extraordinary high quality silicon rubber of high resiliency is material, adopts import equipment to annotate the rubber moulding.Product is easy for installation, and function admirable is applicable to the heavy pollution area.
Summary of the invention
In order to satisfy the high-speed electric railway engineering of high speed development, provide a kind of product easy for installation, function admirable, be applicable to the railway private cable transition joint in heavy pollution area, the utility model provides a kind of railway cable intermediate joint, comprise stress cone, stress tube, also comprise prefabricated insulator, copper connecting tube, the copper shield net, constant force spring, in the described prefabricated insulator described stress cone is set, stress tube, described stress cone is arranged on the two ends in the described prefabricated insulator, described stress tube is arranged on the middle part in the described prefabricated insulator, described copper connecting tube is arranged on the inboard of described stress tube and it is shorter in length than described stress tube, described copper shield net around being arranged on described prefabricated insulator is surrounded itself and cable joint, and described constant force spring is tight with earth connection and described copper shield network interface card.
As further improvement of the utility model, described stress cone and prefabricated insulator are combined into one.
As further improvement of the utility model, also comprise adhesive waterproof tape, described adhesive waterproof tape is arranged on the junction of transition joint two ends and cable.
As further improvement of the utility model, also comprise belt armour, described belt armour is arranged on the periphery of described transition joint.
The prefabricated insulator of railway private cable of the present utility model transition joint is contracted on the cable body tightly, stress cone reasonably overlaps with outer semiconductive layer, the power of holding tightly of liquid silastic itself is very strong, add with adhesive waterproof tape and belt armour and twine tightly, all the time provide constant lasting radial pressure to cable body after itself and cable body almost being connected as a single entity install, partial discharge quantity is little, with cable body same " breathing ".Have easy for installation, characteristics such as nothing is oily, explosion-proof, volume is little, in light weight, easy care.
The import silicon rubber of selecting for use has high strength, high resiliency, anti-corona, the trace of anti-leakage the, advantage such as ageing-resistant, has guaranteed the high-quality of product and the reliability of long-time running; Be applicable to the heavy pollution area.
Conductive silicon rubber stress cone that inside is compound, Stress Control is not subjected to the influence of system frequency variation, has improved the Electric Field Distribution of cable shield cut-off part reliably.
Description of drawings
Fig. 1 is that the end of the cable that connected of railway private cable of the present utility model transition joint is opened the stripping structural representation;
Fig. 2 structural representation that to be railway private cable of the present utility model transition joint connect with the cable that is connected.
Each component names is as follows among the figure: core 1, insulating barrier 2, outer semiconductive layer 3, copper shield 4, inner sheath 5, steel armour 6, oversheath 7, stress cone 101, stress tube 102, prefabricated insulator 103, copper connecting tube 104, copper shield net 105, constant force spring 106, adhesive waterproof tape 107, belt armour 108, copper braid over braid 109.
Embodiment
Below in conjunction with description of drawings and embodiment the utility model is further specified.
Full cold-shrink technology claims the predilation technology again, is about to strut in advance in the elastic caoutchouc elastic range, is inserted in support bar and adds fixing.During installation, only need the plastic support bar is taken out, elastomer just shrink rapidly and lock ring on cable body.This product is full shrinkage terminals, and its stress cone material adopts liquid partly to lead type silicon rubber, and the dielectric constant of this material, dielectric strength, insulation resistance and dielectric dissipation factor maintain a long-term stability.
As shown in Figure 1, the end of the cable that connected of railway private cable of the present utility model transition joint is opened stripping and is exposed core 1, insulating barrier 2, outer semiconductive layer 3, copper shield 4, inner sheath 5, steel armour 6, oversheath 7 successively.
As shown in Figure 2, the technical scheme that the utility model adopted is: the transition joint of railway private cable comprises stress cone 101, stress tube 102, prefabricated insulator 103, copper connecting tube 104, copper shield net 105, constant force spring 106, adhesive waterproof tape 107, belt armour 108, described stress cone 101 is combined into one with prefabricated insulator 103, electric field stress distributes and adopts Finite Element optimization, stress control method adopts geometric method control, makes the cable intermediate joint Electric Field Distribution be tending towards dispersing, evenly; The local segment of semiconductive layer 3, prefabricated insulator 103 close outer semiconductive layer 3 fractures outside the described transition joint spliced cables two ends, described copper connecting tube 104 compress with hydraulic tongs after core 1 is docked, and guarantee that conduction is good, do not get loose; Described copper shield net 105 is surrounded transition joint, plays the effect of electric field shielding; Described constant force spring 106 is earth connection (not shown), copper shield net 105 chuckings, and what make that it can be good contact assurance ground connection effect with cable copper shield 4; Described adhesive waterproof tape 107 is used to prevent that water from infiltrating, and protection cable and annex are not damaged; Described belt armour 108 is used to recover oversheath (promptly as oversheath), plays the effect of waterproof, resistance to compression, protection transition joint.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (5)
1. railway cable intermediate joint, comprise stress cone (101), stress tube (102), it is characterized in that: also comprise prefabricated insulator (103), copper connecting tube (104), copper shield net (105), constant force spring (106), described stress cone (101) is set in the described prefabricated insulator (103), stress tube (102), described stress cone (101) is arranged on the two ends in the described prefabricated insulator (103), described stress tube (102) is arranged on the middle part in the described prefabricated insulator (103), described copper connecting tube (104) is arranged on the inboard of described stress tube (102) and it is shorter in length than described stress tube (102), described copper shield net (105) is arranged on described prefabricated insulator (103) and on every side itself and cable joint is surrounded, and described constant force spring (106) is tight with earth connection and described copper shield network interface card.
2. railway cable intermediate joint according to claim 1 is characterized in that: described stress cone (101) and prefabricated insulator (103) are combined into one.
3. railway cable intermediate joint according to claim 1 is characterized in that: also comprise adhesive waterproof tape (107), described adhesive waterproof tape (107) is arranged on the junction of transition joint two ends and cable.
4. railway cable intermediate joint according to claim 2 is characterized in that: also comprise adhesive waterproof tape (107), described adhesive waterproof tape (107) is arranged on the junction of transition joint two ends and cable.
5. according to any described railway cable intermediate joint of claim 1 to 4, it is characterized in that: also comprise belt armour (108), described belt armour (108) is arranged on the periphery of described transition joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200514990U CN201956653U (en) | 2011-03-01 | 2011-03-01 | Cable middle joint for railways |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200514990U CN201956653U (en) | 2011-03-01 | 2011-03-01 | Cable middle joint for railways |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201956653U true CN201956653U (en) | 2011-08-31 |
Family
ID=44500755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200514990U Expired - Lifetime CN201956653U (en) | 2011-03-01 | 2011-03-01 | Cable middle joint for railways |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201956653U (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2994017A1 (en) * | 2012-07-27 | 2014-01-31 | Peugeot Citroen Automobiles Sa | Interface device for shielding between two electric cables of car, has sleeve whose ends are formed between inner insulator and shielding unit, and another inner insulator placed between sleeve and projecting portions of conductive cores |
| CN105811353A (en) * | 2016-03-21 | 2016-07-27 | 中天科技海缆有限公司 | Multilayer armored cable maintenance connector box and installation method thereof |
| CN107623305A (en) * | 2017-09-21 | 2018-01-23 | 科耐特输变电科技股份有限公司 | A kind of fire-retardant cold shrinking power cable adjuncts of 10KV |
| CN107706879A (en) * | 2017-11-07 | 2018-02-16 | 广州高力电缆附件有限公司 | A kind of cable intermediate joint and its fabrication and installation method |
| CN107732562A (en) * | 2017-09-25 | 2018-02-23 | 南方电网科学研究院有限责任公司 | Cable joint explosion-proof device and installation method thereof |
| CN108599059A (en) * | 2018-06-29 | 2018-09-28 | 苏州优康通信设备有限公司 | A kind of wire or cable terminal box with anti-interference function |
| CN108767781A (en) * | 2018-06-29 | 2018-11-06 | 苏州优康通信设备有限公司 | A kind of detachable anti-interference cable terminal box |
| CN108899832A (en) * | 2018-06-29 | 2018-11-27 | 苏州优康通信设备有限公司 | A kind of fire-retardant terminal box |
| CN108933423A (en) * | 2017-05-25 | 2018-12-04 | 中天海洋***有限公司 | Cable connector |
| CN110768201A (en) * | 2019-11-01 | 2020-02-07 | 国网浙江慈溪市供电有限公司 | Explosion-proof box for cable intermediate head |
| CN111969545A (en) * | 2020-08-17 | 2020-11-20 | 广东电网有限责任公司广州供电局 | Cable intermediate head |
| CN113809714A (en) * | 2021-09-14 | 2021-12-17 | 深圳市银星联盟电力科技有限公司 | Waterproof intermediate joint and mounting method thereof |
-
2011
- 2011-03-01 CN CN2011200514990U patent/CN201956653U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2994017A1 (en) * | 2012-07-27 | 2014-01-31 | Peugeot Citroen Automobiles Sa | Interface device for shielding between two electric cables of car, has sleeve whose ends are formed between inner insulator and shielding unit, and another inner insulator placed between sleeve and projecting portions of conductive cores |
| CN105811353A (en) * | 2016-03-21 | 2016-07-27 | 中天科技海缆有限公司 | Multilayer armored cable maintenance connector box and installation method thereof |
| CN105811353B (en) * | 2016-03-21 | 2017-12-29 | 中天科技海缆有限公司 | A kind of multilayer armored cable maintenance connector box and its installation method |
| CN108933423A (en) * | 2017-05-25 | 2018-12-04 | 中天海洋***有限公司 | Cable connector |
| CN107623305A (en) * | 2017-09-21 | 2018-01-23 | 科耐特输变电科技股份有限公司 | A kind of fire-retardant cold shrinking power cable adjuncts of 10KV |
| CN107732562A (en) * | 2017-09-25 | 2018-02-23 | 南方电网科学研究院有限责任公司 | Cable joint explosion-proof device and installation method thereof |
| CN107732562B (en) * | 2017-09-25 | 2024-02-13 | 南方电网科学研究院有限责任公司 | Explosion-proof device for cable joint and installation method thereof |
| CN107706879A (en) * | 2017-11-07 | 2018-02-16 | 广州高力电缆附件有限公司 | A kind of cable intermediate joint and its fabrication and installation method |
| CN108599059A (en) * | 2018-06-29 | 2018-09-28 | 苏州优康通信设备有限公司 | A kind of wire or cable terminal box with anti-interference function |
| CN108767781A (en) * | 2018-06-29 | 2018-11-06 | 苏州优康通信设备有限公司 | A kind of detachable anti-interference cable terminal box |
| CN108899832A (en) * | 2018-06-29 | 2018-11-27 | 苏州优康通信设备有限公司 | A kind of fire-retardant terminal box |
| CN110768201A (en) * | 2019-11-01 | 2020-02-07 | 国网浙江慈溪市供电有限公司 | Explosion-proof box for cable intermediate head |
| CN111969545A (en) * | 2020-08-17 | 2020-11-20 | 广东电网有限责任公司广州供电局 | Cable intermediate head |
| CN113809714A (en) * | 2021-09-14 | 2021-12-17 | 深圳市银星联盟电力科技有限公司 | Waterproof intermediate joint and mounting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110831 |
|
| CX01 | Expiry of patent term |