CN103138224A - Protection device for middle joints of high- and ultrahigh- voltage crosslinked cables - Google Patents
Protection device for middle joints of high- and ultrahigh- voltage crosslinked cables Download PDFInfo
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- CN103138224A CN103138224A CN2011103794235A CN201110379423A CN103138224A CN 103138224 A CN103138224 A CN 103138224A CN 2011103794235 A CN2011103794235 A CN 2011103794235A CN 201110379423 A CN201110379423 A CN 201110379423A CN 103138224 A CN103138224 A CN 103138224A
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- high pressure
- high voltage
- transition joint
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Abstract
The invention relates to a protection device for middle joints of high- and ultrahigh- voltage crosslinked cables. The protection device comprises a shell and a filling body, wherein the shell is barrel-shaped and is divided into three sections, namely a left section, a middle section and the right section respectively; the middle joints of the cables are inserted into the shell; and the filling body is arranged between the shell and each middle joint of the cable. Compared with the prior art, the protection device has the advantages of compact and small structure, light mass, environment friendliness and the like.
Description
Technical field
The present invention relates to a kind of connector protection device, especially relate to a kind of protective device for high pressure, ultra-high voltage cross-linking cable transition joint.
Background technology
Cable joint can discharge a large amount of energy when puncturing with explosion accident, and other operation cable lines of periphery, facility or personnel are worked the mischief, and even can cause the generation of second accident.Joint fire prevention at present, explosive-proof protector box product mainly only are applied in 35kV and following grade, and high pressure, extra high voltage system are because its capacity is large, and the energy that discharges during short trouble is large, and be higher to the performance requirement of protection box.Even the protection box that is applied to extra high voltage system is arranged, be also the hermetic dead hermetically-sealed constructions in two ends, the product of this protection box repacking of using from medium voltage network is not considered the problem that extra high voltage system transition joint earth connection is drawn, install very difficult.Simultaneously, this kind product can not solve the problem of transition joint heat radiation, and connector temperature has a strong impact on ampacity after raising.Laboratory simulation joint short trouble is the most reliable the most direct mode of checking protection box protective value, but because its technical difficulty is large, cost is high, so domestic also do not have producer to do.
Summary of the invention
Purpose of the present invention is exactly to provide in order to overcome the defective that above-mentioned prior art exists that a kind of compact conformation is small and exquisite, quality light, the protective device that is used for high pressure, ultra-high voltage cross-linking cable transition joint of environmental protection.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of protective device for high pressure, ultra-high voltage cross-linking cable transition joint is characterized in that this protective device comprises housing and obturator, and described housing is tubular, is divided into three sections, is respectively the left side section, interlude, the right section that connect successively; Described cable intermediate joint is located in housing, and described obturator is located between housing and cable intermediate joint.
Described left side section, interlude, the right section are divided into the up and down two halves, this up and down two halves is equipped with outward extending shirt rim, this shirt rim is provided with the hole, and the hole that penetrates on the shirt rim by bolt links together the two halves up and down of left side section, interlude, the right section.
The latter half of described interlude is provided with two boss, this boss is provided with shrinkage pool, described transition joint is fixed on the joint anchor ear, described joint anchor ear is fixed in the shrinkage pool of boss, described boss is fixed on cable bearer, by bolt, joint anchor ear, boss, cable bearer is fixed together.
Described left side section and Duan Junxiang center, the right are shunk and are formed round-meshed baffle plate.
The diameter of described circular hole is 50～75% of external diameter.
Described obturator is the ceramic fibre of fiber fusing point more than 1600 degree.
Described housing adopts the expoxy glass Steel material.
The thickness of described housing is 1～2cm.
Compared with prior art, the present invention has the following advantages:
1) adopt glass-reinforced plastic material, quality is light, and the environment measuring authentication has been passed through in environmental protection;
2) three-stage structure, this compact conformation is small and exquisite, is convenient to transportation and installs;
3) in the middle of, a boss is arranged, but the link of simple realization joint, protection box and support;
4) non-dead hermetically-sealed construction, do not affect current-carrying capacity of cable, and done experimental verification;
5) laboratory environment innovation simulation short trouble, checking protection box protective value.
Description of drawings
Fig. 1 is main TV structure schematic diagram;
Fig. 2 is the plan structure schematic diagram;
Fig. 3 is the DD face cutaway view of Fig. 1;
Fig. 4 is the A phantom after installing.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Embodiment
Generally all narrow for the environment that high pressure, ultra-high voltage electric cable joint are installed, therefore protect the structure of box to want compact small and exquisite, quality is light, is convenient to the mounting box transportation.Simultaneously, cable joint can shake when operation, must simple and conveniently realize the fixing of joint.
High pressure, extra-high-tension cable transition joint generally have earth connection to pass in the protection box, therefore need to solve the problem how earth connection passes the protection box.Transition joint simultaneously can produce heat when operation, if heat can not in time shed, connector temperature is further raise, and will affect the ampacity of cable.
When high pressure, extra-high-tension cable are normally transmitted electricity, if there is magnetic material on every side, can produce eddy current, consume power grid energy, near product of metal material also needs reliable ground, when ground connection is unreliable or destroyed, easily breaks down.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4 as shown in, a kind of protective device for high pressure, ultra-high voltage cross-linking cable transition joint, this protective device comprises housing and obturator 8, described housing is tubular, be divided into three sections, be respectively left side section A, the interlude B, the right section C that connect successively; Described cable intermediate joint 5 is located in housing, and described obturator 8 is located between housing and cable transition joint 5.Described left side section A, interlude B, the right section C are divided into the up and down two halves, this up and down two halves is equipped with outward extending shirt rim 1, this shirt rim 1 is provided with the hole, and the hole that penetrates on the shirt rim by bolt links together the two halves up and down of left side section A, interlude B, the right section C.The latter half of described interlude is provided with two boss 2, this boss 2 is provided with shrinkage pool, described transition joint 5 is fixed on the joint anchor ear 4, described joint anchor ear 4 is fixed in the shrinkage pool of boss, described boss is fixed on cable bearer 3, by bolt, joint anchor ear 4, boss 2, cable bearer 3 is fixed together.Described left side section and Duan Junxiang center, the right are shunk and are formed round-meshed baffle plate 6, and cable 7 passes baffle plate 6.
Claims (8)
1. a protective device that is used for high pressure, ultra-high voltage cross-linking cable transition joint, is characterized in that, this protective device comprises housing and obturator, and described housing is tubular, is divided into three sections, is respectively the left side section, interlude, the right section that connect successively; Described cable intermediate joint is located in housing, and described obturator is located between housing and cable intermediate joint.
2. a kind of protective device for high pressure, ultra-high voltage cross-linking cable transition joint according to claim 1; it is characterized in that; described left side section, interlude, the right section are divided into the up and down two halves; this up and down two halves is equipped with outward extending shirt rim; this shirt rim is provided with the hole, and the hole that penetrates on the shirt rim by bolt links together the two halves up and down of left side section, interlude, the right section.
3. a kind of protective device for high pressure, ultra-high voltage cross-linking cable transition joint according to claim 2; it is characterized in that; the latter half of described interlude is provided with two boss; this boss is provided with shrinkage pool; described transition joint is fixed on the joint anchor ear; described joint anchor ear is fixed in the shrinkage pool of boss, and described boss is fixed on cable bearer, by bolt, joint anchor ear, boss, cable bearer is fixed together.
4. a kind of protective device for high pressure, ultra-high voltage cross-linking cable transition joint according to claim 2, is characterized in that, described left side section and Duan Junxiang center, the right are shunk and formed round-meshed baffle plate.
5. a kind of protective device for high pressure, ultra-high voltage cross-linking cable transition joint according to claim 4, is characterized in that, the diameter of described circular hole is 50～75% of external diameter.
6. a kind of protective device for high pressure, ultra-high voltage cross-linking cable transition joint according to claim 1, is characterized in that, described obturator is the ceramic fibre of fiber fusing point more than 1600 degree.
7. a kind of protective device for high pressure, ultra-high voltage cross-linking cable transition joint according to claim 1, is characterized in that, described housing adopts the expoxy glass Steel material.
8. according to claim 1 or 7 described a kind of protective devices for high pressure, ultra-high voltage cross-linking cable transition joint, is characterized in that, the thickness of described housing is 1～2cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110379423.5A CN103138224B (en) | 2011-11-24 | 2011-11-24 | For the protective device of high pressure, ultra-high voltage cross-linking cable transition joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110379423.5A CN103138224B (en) | 2011-11-24 | 2011-11-24 | For the protective device of high pressure, ultra-high voltage cross-linking cable transition joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103138224A true CN103138224A (en) | 2013-06-05 |
| CN103138224B CN103138224B (en) | 2015-08-19 |
Family
ID=48497700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110379423.5A Active CN103138224B (en) | 2011-11-24 | 2011-11-24 | For the protective device of high pressure, ultra-high voltage cross-linking cable transition joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103138224B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108206488A (en) * | 2016-12-20 | 2018-06-26 | 天津绪阳本华科技有限公司 | A kind of wife's lined cable guide structures |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0246123A (en) * | 1988-08-08 | 1990-02-15 | Sumitomo Electric Ind Ltd | Joint of power cable |
| CN1168746A (en) * | 1994-10-11 | 1997-12-24 | 雷伊化学股份有限公司 | Electrical equipment |
| JP2000287350A (en) * | 1999-03-31 | 2000-10-13 | Okinawa Electric Power Co Ltd | Intermediate connection part for double armored underwater cable |
| CN201061117Y (en) * | 2007-06-21 | 2008-05-14 | 武汉华瑞电力科技股份有限公司 | 110kV-220kV crosslinked cable middle joint |
| CN201327989Y (en) * | 2008-12-19 | 2009-10-14 | 深圳市惠程电气股份有限公司 | Protective box for high-voltage cable joint |
| CN201733055U (en) * | 2009-09-04 | 2011-02-02 | 邵珠合 | Cable joint explosion-proof box |
-
2011
- 2011-11-24 CN CN201110379423.5A patent/CN103138224B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0246123A (en) * | 1988-08-08 | 1990-02-15 | Sumitomo Electric Ind Ltd | Joint of power cable |
| CN1168746A (en) * | 1994-10-11 | 1997-12-24 | 雷伊化学股份有限公司 | Electrical equipment |
| JP2000287350A (en) * | 1999-03-31 | 2000-10-13 | Okinawa Electric Power Co Ltd | Intermediate connection part for double armored underwater cable |
| CN201061117Y (en) * | 2007-06-21 | 2008-05-14 | 武汉华瑞电力科技股份有限公司 | 110kV-220kV crosslinked cable middle joint |
| CN201327989Y (en) * | 2008-12-19 | 2009-10-14 | 深圳市惠程电气股份有限公司 | Protective box for high-voltage cable joint |
| CN201733055U (en) * | 2009-09-04 | 2011-02-02 | 邵珠合 | Cable joint explosion-proof box |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108206488A (en) * | 2016-12-20 | 2018-06-26 | 天津绪阳本华科技有限公司 | A kind of wife's lined cable guide structures |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103138224B (en) | 2015-08-19 |
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