CN108429224A - A kind of novel extra large land cable crossover sub - Google Patents
A kind of novel extra large land cable crossover sub Download PDFInfo
- Publication number
- CN108429224A CN108429224A CN201810319884.5A CN201810319884A CN108429224A CN 108429224 A CN108429224 A CN 108429224A CN 201810319884 A CN201810319884 A CN 201810319884A CN 108429224 A CN108429224 A CN 108429224A
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- CN
- China
- Prior art keywords
- cable
- extra large
- land
- core
- cable core
- 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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Classifications
-
- 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
- H02G15/00—Cable fittings
- H02G15/08—Cable junctions
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
- H02G15/1806—Heat shrinkable sleeves
- H02G15/1813—Wraparound or slotted sleeves
-
- 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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/14—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables
Landscapes
- Cable Accessories (AREA)
Abstract
The invention discloses a kind of novel extra large land cable crossover subs, including adapter body, tri-finger stall, land cable protecting pipe, extra large cable protecting pipe and metal connecting tube composition；Major diameter connecting sleeve is arranged in one end of tri-finger stall, and three minor diameter connecting tubes are arranged in the other end；Extra large cable cable core is connect by adapter body with land cable cable core；Extra large cable protecting pipe, one end connect extra large cable cable core sheath, and other end is connected to adapter body port；Land cable cable core passes through minor diameter connecting tube；Land cable protecting pipe is set on the cable cable core of land, and one end connects minor diameter connecting tube, and other end is connected to adapter body port；The major diameter connecting sleeve of tri-finger stall is set on overland cable oversheath；Metal connecting tube is used to connect the conductor of extra large cable cable core and land cable cable core.The conversion connection between overland cable and submarine cable different structure, easy for installation simple, strong applicability, low cost can be achieved in the present invention.
Description
Technical field
The present invention relates to cable intermediate joints, and in particular to a kind of novel extra large land cable crossover sub.
Background technology
Submarine cable logs in needs and is connect with overland cable, and submarine cable from overland cable because structure is different, it is traditional
Transition joint cannot be satisfied connection request, and sea land cable conversion connection at present is generally solved using ring main unit.Ring main unit cost is high,
Need special immobilizing foundation, installation space narrow.
Invention content
The technical problem to be solved in the present invention is to provide a kind of novel extra large land cable crossover subs, realize overland cable and sea
Conversion connection between the cable different structure of bottom.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：A kind of novel extra large land cable crossover sub, packet
Include adapter body, tri-finger stall, land cable protecting pipe, extra large cable protecting pipe and metal connecting tube composition；
The tri-finger stall includes that middle part carries the shell of cavity, is set to the major diameter company that shell one end is connect with overland cable
Female connector pipe and it is set to three minor diameter connecting tubes that the shell other end is connect with protecting pipe；The major diameter connecting sleeve
It is connect with the cavity with the minor diameter connecting tube；
The adapter body is set in extra large cable cable core and land cable cable core centre position, and the middle part on the inside of adapter body is provided with metal
Connecting tube；The metal connecting tube is the tubular shape conductor for connecting extra large cable cable core and land cable cable core；
The land cable protecting pipe is set on the cable cable core of land, and one end is connect with minor diameter connecting tube, and the other end connects with adapter body
It connects；
The extra large cable protecting pipe is set on extra large cable cable core, and one end is connect with adapter body, and the other end is set in extra large cable cable core
Sheath on.
Further, the adapter body includes semiconductive stress cone, insulation sleeve, semiconductive stress tube and outer semiconductive
Layer；Outer semiconducting layer is arranged in the outer layer of the insulation sleeve, and semiconductive stress cone is arranged in both ends；The inside of insulation sleeve is set in the middle
It is equipped with semiconductive stress tube；Metal connecting tube is arranged in the inside of the semiconductive stress tube.
Further, three minor diameter connecting tubes are in three vertex distributions of isosceles triangle.
Further, the shell of the tri-finger stall, major diameter connecting sleeve and three minor diameter connecting sleeves one at
Type.
Further, the metal connecting tube is copper pipe or aluminum pipe.
Further, the land cable protecting pipe and extra large cable protecting pipe are rubber or EVA materials.
The connection method of the novel extra large land cable crossover sub of the present invention, includes the following steps：
（1）Protective layer outside submarine cable is removed, three-phase extra large cable cable core is separated, by the front end of extra large cable cable core by regulation work
Skill length removes sheath, lead set, external shielding layer and the insulation of extra large cable cable core, and extra large cable protecting pipe is set in advance on extra large cable cable core；
（2）It, will by overland cable by regulation process length removal oversheath, steel band, inner sheath, copper strips, external shielding layer and insulation
Three land cable cable cores separate, and the front end of three land cable cable cores is each passed through three minor diameter connecting sleeves of tri-finger stall；Then will
The major diameter connecting sleeve of tri-finger stall is set on overland cable oversheath, on overland cable oversheath, then by land cable protecting pipe
It is set in advance on the land cable cable core for stretching out minor diameter connecting sleeve；
（3）Three adapter bodies are sleeved in advance on extra large cable cable core or land cable cable core, then by metal connecting tube by extra large cable cable
The conductor of core and land cable cable core connects, then adapter body is moved to the centre of extra large cable cable core and land cable cable core coupling part
Position；
（4）Extra large cable protecting pipe one end is set on the sheath of extra large cable cable core rear end, the other end is connect with adapter body；By land cable
Protecting pipe one end is set in the minor diameter connecting sleeve of tri-finger stall, and the other end is connect with adapter body；
（5）Finally carry out waterproof, armouring processing.
Beneficial effects of the present invention：
1, the conversion connection between overland cable and submarine cable different structure can be achieved；
2, coordinated by tri-finger stall and protecting pipe, can effectively realize the waterproof at overland cable end；
3, by the cooperation of protecting pipe and extra large cable cable core sheath, the waterproof at submarine cable end can be effectively realized；
4, pyrocondensation or shrinkage material cable accessory can be used；
5, simple, strong applicability easy for installation, can be applied to 6kV~35kV overland cables and submarine cable；
6, low cost of the present invention is 1/10 or so of ring main unit price, without special basis, is not influenced by installation space.
Description of the drawings
It, below will be to needed in the embodiment in order to more clearly illustrate the technical solution in the embodiment of the present invention
Attached drawing is simply introduced, it should be apparent that, the accompanying drawings in the following description is only some embodiments described in the present invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the sectional view of adapter body.
Fig. 3 is the sectional view of tri-finger stall.
Fig. 4 is the side view of tri-finger stall.
The sectional view of Fig. 5 protecting pipes.
Fig. 6 is schematic diagram of the adapter body after installation is complete.
Specific implementation mode
Technical scheme of the present invention will be clearly and completely described by specific implementation mode below.
As shown in Figs. 1-5, be the novel extra large land cable crossover sub of one kind of the present invention, including adapter body 4, tri-finger stall 8,
Metal connecting tube 5, extra large cable protecting pipe 3 and land cable protecting pipe 7 form；
The tri-finger stall 8 include middle part with cavity 84 shell 81, be set to shell one end connect with overland cable it is big
Diameter connecting sleeve 82 and it is set to three minor diameter connecting tubes 83 that the shell other end is connect with protecting pipe；Described is big straight
Diameter connecting sleeve 82 is connect with the cavity 84 with the minor diameter connecting tube 83；
The adapter body is set in extra large cable cable core and land cable cable core centre position, including semiconductive stress cone 10, insulation sleeve 11,
Semiconductive stress tube 12 and outer semiconducting layer 13；Outer semiconducting layer 13 is arranged in the outer layer of the insulation sleeve 11, and both ends setting is partly led
Electric stress cone 10；The inside of insulation sleeve 11 is provided with semiconductive stress tube 12 in the middle；The semiconductive stress tube 12 it is interior
Metal connecting tube is arranged in side；The metal connecting tube is the tubular shape conductor for connecting extra large cable cable core and land cable cable core, material
It is copper or aluminium；
The land cable protecting pipe is set on the cable cable core of land, and one end is connect with minor diameter connecting tube, and the other end connects with adapter body 4
It connects；
The extra large cable protecting pipe is set on extra large cable cable core, and one end is connect with adapter body 4, and the other end is set in extra large cable cable core
Sheath on；
The metal connecting tube is used to connect the conductor of extra large cable cable core and land cable cable core.
Three minor diameter connecting tubes of the present invention are in three vertex distributions of isosceles triangle.
Shell, major diameter connecting sleeve and the three minor diameter connecting sleeves of the tri-finger stall of the present invention are integrally formed.
The connection method of the novel extra large land cable crossover sub of the present invention, includes the following steps：
（1）The protective layer of 1 outside of submarine cable is removed, three-phase extra large cable cable core is separated, by the front end of extra large cable cable core 2 by regulation
Process length removes sheath, lead set, external shielding layer and the insulation of extra large cable cable core 2, and extra large cable protecting pipe 3 is set to extra large cable cable core in advance
On 2；
（2）It, will by overland cable 9 by regulation process length removal oversheath, steel band, inner sheath, copper strips, external shielding layer and insulation
Three land cable cable cores 6 separate, and the front end of three land cable cable cores 6 is each passed through three minor diameter connecting sleeves 83 of tri-finger stall；So
The major diameter connecting sleeve 82 of tri-finger stall is set on overland cable oversheath afterwards, on overland cable oversheath, then by land cable
Protecting pipe 7 is set in advance on the land cable cable core 6 for stretching out minor diameter connecting sleeve 83；
（3）Three adapter bodies 4 are sleeved in advance on extra large cable cable core 2 or land cable cable core 6, it then will be extra large by metal connecting tube 4
The conductor of cable cable core and land cable cable core connects, and adapter body is then moved to extra large cable cable core and land cable cable core coupling part
Centre position；
（4）3 one end of extra large cable protecting pipe is set on the sheath of 2 rear end of extra large cable cable core, the other end is connect with adapter body 4；It will
Land cable protecting pipe one end is set in the minor diameter connecting sleeve 83 of tri-finger stall, and the other end is connect with adapter body 4；
（5）Finally carry out waterproof, armouring processing.
The land cable protecting pipe and extra large cable protecting pipe of the present invention is rubber material or EVA material.
Embodiment described above is only that the preferred embodiment of the present invention is described, not to the design of the present invention
It is defined with range, under the premise of not departing from design concept of the present invention, ordinary engineering and technical personnel is to this hair in this field
The all variations and modifications that bright technical solution is made should all fall into protection scope of the present invention, claimed skill of the invention
Art content is all documented in technology claim.
Claims (7)
1. a kind of novel extra large land cable crossover sub, it is characterised in that：Including adapter body, tri-finger stall, land cable protecting pipe, extra large cable
Protecting pipe and metal connecting tube composition；
The tri-finger stall includes that middle part carries the shell of cavity, is set to the major diameter company that shell one end is connect with overland cable
Female connector pipe and it is set to three minor diameter connecting tubes that the shell other end is connect with protecting pipe；The major diameter connecting sleeve
It is connect with the cavity with the minor diameter connecting tube；
The adapter body is set in extra large cable cable core and land cable cable core centre position, and the middle part on the inside of adapter body is provided with metal
Connecting tube；The metal connecting tube is the tubular shape conductor for connecting extra large cable cable core and land cable cable core；
The land cable protecting pipe is set on the cable cable core of land, and one end is connect with minor diameter connecting tube, and the other end connects with adapter body
It connects；
The extra large cable protecting pipe is set on extra large cable cable core, and one end is connect with adapter body, and the other end is set in extra large cable cable core
Sheath on.
2. the novel extra large land cable crossover sub of one kind according to claim 1, it is characterised in that：The adapter body packet
Include semiconductive stress cone, insulation sleeve, semiconductive stress tube and outer semiconducting layer；Outer semiconductive is arranged in the outer layer of the insulation sleeve
Semiconductive stress cone is arranged in layer, both ends；The inside of insulation sleeve is provided with semiconductive stress tube in the middle；The semiconductive stress
Metal connecting tube is arranged in the inside of pipe.
3. the novel extra large land cable crossover sub of one kind according to claim 1, it is characterised in that：Three minor diameters
Connecting tube is in three vertex distributions of isosceles triangle.
4. the novel extra large land cable crossover sub of one kind according to claim 1, it is characterised in that：The shell of the tri-finger stall
Body, major diameter connecting sleeve and three minor diameter connecting sleeves are integrally formed.
5. the novel extra large land cable crossover sub of one kind according to claim 1, it is characterised in that：The metal connecting tube
For copper pipe or aluminum pipe.
6. the novel extra large land cable crossover sub of one kind according to claim 1, it is characterised in that：The land cable protecting pipe
It is rubber or EVA materials with extra large cable protecting pipe.
7. using the connection method of novel extra large land cable crossover sub described in claim 1, it is characterised in that：Including walking as follows
Suddenly：
（1）Protective layer outside submarine cable is removed, three-phase extra large cable cable core is separated, by the front end of extra large cable cable core by regulation work
Skill length removes sheath, lead set, external shielding layer and the insulation of extra large cable cable core, and extra large cable protecting pipe is set in advance on extra large cable cable core；
（2）It, will by overland cable by regulation process length removal oversheath, steel band, inner sheath, copper strips, external shielding layer and insulation
Three land cable cable cores separate, and the front end of three land cable cable cores is each passed through three minor diameter connecting sleeves of tri-finger stall；Then will
The major diameter connecting sleeve of tri-finger stall is set on overland cable oversheath, on overland cable oversheath, then by land cable protecting pipe
It is set in advance on the land cable cable core for stretching out minor diameter connecting sleeve；
（3）Three adapter bodies are sleeved in advance on extra large cable cable core or land cable cable core, then by metal connecting tube by extra large cable cable
The conductor of core and land cable cable core connects, then adapter body is moved to the centre of extra large cable cable core and land cable cable core coupling part
Position；
（4）Extra large cable protecting pipe one end is set on the sheath of extra large cable cable core rear end, the extra large cable sheath of the other end and adapter body
Pipe connector sleeves connect；Land cable protecting pipe one end is set in the minor diameter connecting sleeve of tri-finger stall, the other end and adapter body
The connection of land cable sheath pipe connector sleeves；
（5）Finally carry out waterproof, armouring processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810319884.5A CN108429224A (en) | 2018-04-11 | 2018-04-11 | A kind of novel extra large land cable crossover sub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810319884.5A CN108429224A (en) | 2018-04-11 | 2018-04-11 | A kind of novel extra large land cable crossover sub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108429224A true CN108429224A (en) | 2018-08-21 |
Family
ID=63160957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810319884.5A Pending CN108429224A (en) | 2018-04-11 | 2018-04-11 | A kind of novel extra large land cable crossover sub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108429224A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112331390A (en) * | 2020-10-29 | 2021-02-05 | 国网浙江省电力有限公司舟山供电公司 | Single-core alternating current sea and land cable transition joint grounding structure |
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| CN202333718U (en) * | 2011-10-14 | 2012-07-11 | 沈阳国联电缆附件制造有限公司 | Quick connector for 20 kV tunnel cables |
| CN102570376A (en) * | 2012-01-18 | 2012-07-11 | 中科英华高技术股份有限公司 | Production method of insulation intermediate connector |
| CN202444235U (en) * | 2012-02-28 | 2012-09-19 | 江苏亨通高压电缆有限公司 | High-voltage extra-high-voltage submarine cable soft joint |
| CN203813397U (en) * | 2014-05-16 | 2014-09-03 | 国家电网公司 | Middle voltage power cable middle joint vertical water stopping device |
| CN105629412A (en) * | 2016-03-21 | 2016-06-01 | 中天科技海缆有限公司 | Submarine cable and land cable connecting device and connecting method thereof |
| CN106451313A (en) * | 2016-11-30 | 2017-02-22 | 宜昌信通电缆有限公司 | Direct-current ultrahigh-voltage cross-linked cable soft connector and manufacturing process |
| CN205982780U (en) * | 2016-08-22 | 2017-02-22 | 江苏亨通海洋光网系统有限公司 | Can monitor extra large land cable splice box of electrical property |
| CN107394421A (en) * | 2017-07-28 | 2017-11-24 | 特变电工昭和（山东）电缆附件有限公司 | A kind of high-voltage undersea cable rigidity transition joint and its application method |
| CN207994601U (en) * | 2018-04-11 | 2018-10-19 | 江苏中天科技电缆附件有限公司 | A kind of novel extra large land cable crossover sub |
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2018
- 2018-04-11 CN CN201810319884.5A patent/CN108429224A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090218135A1 (en) * | 2005-12-28 | 2009-09-03 | Ubaldo Vallauri | Joining Method and Related Junction for Electric Cables, Tubular Covering Sleeve for Electric-Cable Junctions and Process for Manufacturing the Same |
| CN202333718U (en) * | 2011-10-14 | 2012-07-11 | 沈阳国联电缆附件制造有限公司 | Quick connector for 20 kV tunnel cables |
| CN102570376A (en) * | 2012-01-18 | 2012-07-11 | 中科英华高技术股份有限公司 | Production method of insulation intermediate connector |
| CN202444235U (en) * | 2012-02-28 | 2012-09-19 | 江苏亨通高压电缆有限公司 | High-voltage extra-high-voltage submarine cable soft joint |
| CN203813397U (en) * | 2014-05-16 | 2014-09-03 | 国家电网公司 | Middle voltage power cable middle joint vertical water stopping device |
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| CN205982780U (en) * | 2016-08-22 | 2017-02-22 | 江苏亨通海洋光网系统有限公司 | Can monitor extra large land cable splice box of electrical property |
| CN106451313A (en) * | 2016-11-30 | 2017-02-22 | 宜昌信通电缆有限公司 | Direct-current ultrahigh-voltage cross-linked cable soft connector and manufacturing process |
| CN107394421A (en) * | 2017-07-28 | 2017-11-24 | 特变电工昭和（山东）电缆附件有限公司 | A kind of high-voltage undersea cable rigidity transition joint and its application method |
| CN207994601U (en) * | 2018-04-11 | 2018-10-19 | 江苏中天科技电缆附件有限公司 | A kind of novel extra large land cable crossover sub |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112331390A (en) * | 2020-10-29 | 2021-02-05 | 国网浙江省电力有限公司舟山供电公司 | Single-core alternating current sea and land cable transition joint grounding structure |
| CN112331390B (en) * | 2020-10-29 | 2022-07-19 | 国网浙江省电力有限公司舟山供电公司 | Single-core alternating current sea and land cable transition joint grounding structure |
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