CN107240901B - A kind of direct-burried high-voltage cable joint protection structure - Google Patents
A kind of direct-burried high-voltage cable joint protection structure Download PDFInfo
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- CN107240901B CN107240901B CN201710667836.0A CN201710667836A CN107240901B CN 107240901 B CN107240901 B CN 107240901B CN 201710667836 A CN201710667836 A CN 201710667836A CN 107240901 B CN107240901 B CN 107240901B
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- cable
- well
- protection
- joint protective
- joint
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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
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/02—Installations of electric cables or lines in or on the ground or water laid directly in or on the ground, river-bed or sea-bottom; Coverings therefor, e.g. tile
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
A kind of direct-burried high-voltage cable joint protection structure, protection well including being located on the soil body and the joint protective well in protection well, joint protective well location is on the side borehole wall of protection well, a borehole wall is shared with protection well, the drainpipe for making joint protective well be connected to outside is equipped in the lower part of the borehole wall, it protects and removes the part of joint protective well in well as remaining cable protection well, cable in the cable duct of both sides is pierced by cable duct and is placed in remaining cable protection well upwards respectively, filled with sand or soil to cover cable in remaining cable protection well, the end of cable is equipped with cable connector, two cables respectively penetrate in joint protective well, and it is attached in joint protective well by cable connector, cable connector is stretched and is placed in joint protective well with making somebody a mere figurehead, the top of joint protective well is equipped with cover board.While the present invention makes cable connector be effectively protected, solves the problems, such as seepage drainage, and cost is small and convenient for maintenance and repair in the future.
Description
Technical field
The present invention relates to electric in power cable underground laying technical field more particularly to direct-burried high-tension cable laying work
The protection structure of cable transition joint.
Background technology
In power cable underground laying engineering, cable is generally longer, generally requires to carry out in such a way that segmentation connects
Laying is attached between cable using cable connector in segmentation junction.Cable connector is failure frequent point, so necessary
Safeguard measure is carried out to direct-buried cable connector, and the fewer direct-buried cable connector the better.Protection for direct-buried cable connector, at present
It is generally protected using buried cable well, lower cable shaft is configured at cable connector, consequently facilitating the protection of buried cable
Maintenance and repair in the future.
Due to by the way of buried cable well, generally requiring to solve the problems, such as seepage drainage, and in the prior art still without
Method efficiently solves the problem of seepage drainage, if underground moisture content leaks out to cable connector, it will electric leakage, line loss increase etc. occurs
Problem, or even cause extremely serious power supply safety accident.Therefore, while being protected to cable connector, cable connector
The problem of locating seepage drainage is urgently to be resolved hurrily.
Invention content
In order to solve the above technical problem, the present invention provides a kind of direct-burried high-voltage cable joints to protect structure, makes cable
While connector is effectively protected, solves the problems, such as seepage drainage, and cost is small and convenient for maintenance and repair in the future.
In order to achieve the object of the present invention, used technical solution is：A kind of direct-burried high-voltage cable joint protection structure,
Including the soil body, it is respectively equipped with cable duct in the both sides of the soil body, cable is embedded in the cable duct, further includes being located on the soil body
Protect well and positioned at protection well in joint protective well, the joint protective well location in protection well the side borehole wall on, with protection
Well shares a borehole wall, and the drainpipe for making joint protective well be connected to outside is equipped in the lower part of the borehole wall, is removed in the protection well
Go to the part of joint protective well as remaining cable protection well, the cable in the cable duct of both sides tilts upward respectively is pierced by cable duct juxtaposition
In in remaining cable protection well, filled with sand or soil to cover cable in the remaining cable protection well, the end of the cable is equipped with electricity
Cable joint, two cables respectively penetrate in joint protective well, and are attached in joint protective well by cable connector, institute
It states cable connector to stretch and be placed in joint protective well with making somebody a mere figurehead, the top of the joint protective well is equipped with cover board.
As a further improvement on the present invention, the cable of cable duct is pierced by as spare remaining long cable in remaining cable protection well
It is coiled, and using cable connector as midpoint, in B font disks around the direction of the cable connector and cable between two cables
The direction of ditch inner cable laying is parallel.
As a further improvement on the present invention, across the ditch lintel across cable duct is respectively equipped on the cable duct of both sides,
The part of the borehole wall across the cable duct of the protection well is located on across ditch lintel.
As a further improvement on the present invention, across the ditch lintel is located at cable exit points and cable is bent up between starting point
One third horizontal position.
As a further improvement on the present invention, the bottom surface of the joint protective well uses sand finish, and past drainpipe side
It is arranged to unidirectional aproll is made.
As a further improvement on the present invention, the cable connector is higher than 20~30cm of bottom surface of joint protective well.
As a further improvement on the present invention, it is equipped with splice trays in the joint protective well, makes electricity by splice trays
The aerial setting of cable joint.
As a further improvement on the present invention, the height of the remaining cable protection well higher than its inside cable top surface 20~
30cm。
As a further improvement on the present invention, the cover board uses piecemeal cover board, between piecemeal cover board and piecemeal cover board with
Pass through pointing with cement mortar between joint protective well.
Beneficial effects of the present invention are：
One, seepage drainage is efficiently solved the problems, such as.Direct-buried cable is led on ground, vacantly setting exists cable connector
In joint protective well on ground, underground moisture content is set to be difficult to leak into joint protective well and touch cable connector, and in connector
The drainpipe that setting is connected to outside in protection well, draining can be effectively performed by drainpipe.
Two, function division, connection and reasonable arrangement.Cable connector and cable are divided by joint protective well and remaining cable protection well
It separates from cable is protected with sand or native covering protection, cable connector by joint protective well and cover board in remaining cable protection well
Shield, makes cable connector and cable that can be effectively protected with this configuration, and subregion setting is convenient for specific aim dimension in the future
Shield.
Three, easy to maintain.Cable is promoted to ground by underground, and cable connector is arranged in joint protective well, directly raises
Cover board can carry out the repair and maintenance of cable connector, and cable, with sand or native covering protection, is easy excavated by manual work in remaining cable protection well
Go out, it is easy to maintain.
Four, at low cost.Since cable connector can generally be caused using reserved spare remaining long cable using buried cable well
Cable shaft size is larger, and due to being underground construction so that construction cost is larger.Protection well is arranged in the present invention on the ground,
And protection well construction is simple, compared with buried cable well, construction cost greatly reduces.
Five, it is widely used.It can be widely applied in the buried cable engineering of non-open to traffic in field, especially concentrate
Formula photovoltaic generation engineering.
Description of the drawings
Fig. 1 is sectional view of the present invention；
Fig. 2 is schematic diagram of the present invention；
Fig. 3 is vertical view of the present invention；
Fig. 4 is overall structure of the present invention；
Description of symbols：The 1- soil bodys, 2- cable ducts, across the ditch lintels of 21-, 3- cables, 31- cable connectors, 4- protections well, 5- connect
Head protection well, 51- drainpipes, 52- cover boards, 53- splice trays, cable protection well, 61- soil more than 6-.
Specific implementation mode
With reference to specific embodiment and attached drawing, the invention will be further described.
As shown in Figs 1-4, a kind of direct-burried high-voltage cable joint protects structure, including the soil body 1, is in always in the soil body 1
The both sides in line direction are respectively equipped with cable duct 2, are filled with soil in cable duct 2, cable 3 is embedded in cable duct 2.In the soil body
1 surface is equipped with protection well 4 and the joint protective well 5 in protection well 4, and joint protective well 5 is located at the side well of protection well 4
On wall, a borehole wall is shared with protection well 4, the drainpipe 51 for making joint protective well 5 be connected to outside is equipped in the lower part of the borehole wall.
It protects and removes the part of joint protective well 5 in well 4 as remaining cable protection well 6, the cable 3 in both sides cable duct 2 is tilted towards respectively
On be pierced by cable duct 2 and be placed in remaining cable protection well 6, certainly, filled out filled with soil 61 with covering cable 3 in remaining cable protection well 6
It may be sand to fill substance.The end of cable 3 is equipped with cable connector 31, and two cables 3 coil in remaining cable protection well 6 respectively
Afterwards, end penetrates into joint protective well 5, is attached by cable connector 31 in joint protective well 5, and cable connector 31 is drawn
Direct join is placed in aerially in joint protective well 5, and the top of joint protective well 5 is equipped with cover board 52.
Being pierced by the cable 3 of cable duct 2, there are certain length, are carried out in remaining cable protection well 6 as spare remaining long cable 3
Coiling.Two cables 3 in remaining cable protection well 6 press cable minimum bending radius (cable construction and acceptance specification GB50168-
2006) principle for and in conjunction with cable connector 31 splitting both sides is coiled, and specific coiled structure is：With the company of two cables 3
Meet place --- cable connector 31 is midpoint, the cables 3 of both sides basset after to cable connector 31 same lateral bend it is then reversed
It withdraws, makes the direction phase laid with 2 inner cable 3 of cable duct around the direction of, cable connector 31 in B font disks between two cables 3
It is parallel.By this kind of coiled structure, there are enough spare remaining long cables 3 in remaining cable protection well 6, and meet job specfication
Meanwhile so that spare remaining long cable 3 is coiled shared area and reaching minimum, to reduce the size of remaining cable protection well 6, reduces and build
Cost.
Protection well 4 is rectangular masonry structure, including the four sides borehole wall, with the coiling size and cable of spare remaining long cable 3
31 profile of connector is interior empty size, and block is carried out using the soil body 1 as borehole wall basis and is built, and the borehole wall with stone masonry or can lay bricks, the borehole wall
Height is higher than 20~30cm of its 3 top surface of inside cable, is protected to cable 3 with ensureing to have enough filling thickness, this
In embodiment, the borehole wall is 30cm higher than the highly preferred of its 3 top surface of inside cable.Protect the both sides borehole wall of well 4 across cable duct 2
When, need the setting on cable duct 2 to be located at the borehole wall across ditch across the part of cable duct 2 across across the ditch lintel 21 of cable duct 2
On lintel 21, to ensure its structural strength.Across ditch lintel 21 is located at 3 exit points of cable and cable 3 be bent up between starting point three
/ mono- horizontal position.Across ditch lintel 21 is prefabricated using armored concrete.By across ditch lintel 21, in the construction process, electricity
Cable ditch 2 does not have to the construction for waiting for that sedimentation can carry out protection well 4, quick construction after backfilling, efficiency improves.
The use of joint protective well 5 covers greatly small design method and is configured, and is included in protection well 4, is similarly rectangular
Masonry structure, including the four sides borehole wall, wherein a face borehole wall and protection 4 same wall of well, the excess-three face borehole wall are then independent in protection well 4
Setting.It is equipped with splice trays 53 in joint protective well 5, so that the aerial setting of cable connector 31, cable is connect by splice trays 53
First 31 20~30cm of bottom surface from joint protective well 5, in the present embodiment, the height of bottom surface of the cable connector 31 from joint protective well 5
Degree is preferably 30cm.The bottom surface of joint protective well 5 uses sand finish, and makees unidirectional aproll setting toward 51 direction of drainpipe.It connects
The cover board 52 at 5 top of head protection well uses several pieces of piecemeal cover boards 52.It is protected with connector with piecemeal cover board 52 between piecemeal cover board 52
By pointing with cement mortar between guide-well 5, prevent the water on ground from penetrating into joint protective well 5.
The present invention has been successfully applied to Xuwen County of Guangdong carp pool photovoltaic project, and in photovoltaic area of photovoltaic generation portion, direct-burried is high
In voltage cable laying work, the protection structure is used at cable connector, efficiently solves the problems, such as seepage drainage, and the structure pair
Maintenance maintenance in the future provides larger convenience, in addition, the structure size is small, compared with conventional structure, construction cost
Greatly reduce.
In conclusion the present invention such as specification and diagramatic content, is made actual sample and through test is used for multiple times, from making
It is seen with the effect of test, the provable present invention can reach its desired purpose, and practical value is unquestionable.It is provided above
Embodiment is only used for conveniently illustrating the present invention, and is not intended to limit the present invention in any form, any affiliated technology neck
Have usually intellectual in domain, if in the range of not departing from carried technical characteristic of the invention, utilizes disclosed technology
The equivalent embodiment for locally changing or modifying made by content, and without departing from the technical feature content of the present invention, still fall within
In the range of the technology of the present invention feature.
Claims (9)
1. a kind of direct-burried high-voltage cable joint protects structure, including the soil body, cable duct, the electricity are respectively equipped in the both sides of the soil body
It is embedded with cable in cable ditch, it is characterised in that：Further include the protection well being located on the soil body and the joint protective in protection well
Well, the joint protective well location share a borehole wall with protection well, are equipped in the lower part of the borehole wall on the side borehole wall of protection well
The drainpipe for making joint protective well be connected to outside, the interior part for removing joint protective well of protection well is as remaining cable protection
Well, the cable in the cable duct of both sides tilts upward respectively to be pierced by cable duct and is placed in remaining cable protection well, the remaining cable protection well
Interior filled with sand or native to cover cable, the end of the cable is equipped with cable connector, and two cables respectively penetrate connector
It protects in well, and is attached in joint protective well by cable connector, the cable connector is stretched and is placed in making somebody a mere figurehead and connects
In head protection well, the top of the joint protective well is equipped with cover board.
2. a kind of direct-burried high-voltage cable joint according to claim 1 protects structure, it is characterised in that：It is pierced by cable duct
Cable is coiled as spare remaining long cable in remaining cable protection well, and using cable connector as midpoint, is in B between two cables
Font disk is around the direction of the cable connector is parallel with the direction that cable duct inner cable is laid.
3. a kind of direct-burried high-voltage cable joint according to claim 1 protects structure, it is characterised in that：Cable in both sides
Across the ditch lintel across cable duct is respectively equipped on ditch, the part of the borehole wall across the cable duct of the protection well is located at across ditch lintel
On.
4. a kind of direct-burried high-voltage cable joint according to claim 3 protects structure, it is characterised in that：Across the ditch lintel
It is located at cable exit points and cable is bent up one third horizontal position between starting point.
5. a kind of direct-burried high-voltage cable joint according to claim 1 protects structure, it is characterised in that：The joint protective
The bottom surface of well uses sand finish, and makees unidirectional aproll setting toward drainpipe direction.
6. a kind of direct-burried high-voltage cable joint according to claim 1 protects structure, it is characterised in that：The cable connector
Higher than 20~30cm of bottom surface of joint protective well.
7. a kind of direct-burried high-voltage cable joint according to claim 1 protects structure, it is characterised in that：The joint protective
It is equipped with splice trays in well, makes the aerial setting of cable connector by splice trays.
8. a kind of direct-burried high-voltage cable joint according to claim 1 protects structure, it is characterised in that：The remaining cable protection
The height of well is higher than 20~30cm of its inside cable top surface.
9. a kind of direct-burried high-voltage cable joint according to claim 1 protects structure, it is characterised in that：The cover board uses
Piecemeal cover board passes through pointing with cement mortar between piecemeal cover board between piecemeal cover board and joint protective well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710667836.0A CN107240901B (en) | 2017-08-07 | 2017-08-07 | A kind of direct-burried high-voltage cable joint protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710667836.0A CN107240901B (en) | 2017-08-07 | 2017-08-07 | A kind of direct-burried high-voltage cable joint protection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107240901A CN107240901A (en) | 2017-10-10 |
| CN107240901B true CN107240901B (en) | 2018-08-21 |
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ID=59988945
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710667836.0A Active CN107240901B (en) | 2017-08-07 | 2017-08-07 | A kind of direct-burried high-voltage cable joint protection structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN107240901B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331025B (en) * | 2018-03-28 | 2024-04-23 | 吴天钢 | Multifunctional cable well with margin cable and middle head fixing device |
| CN110233467B (en) * | 2019-07-08 | 2021-03-26 | 贵州水利水电职业技术学院 | Improved mechanism of main leading-out wire of through-flow type hydropower station generator |
| CN113808350B (en) * | 2021-10-28 | 2024-04-09 | 中国华能集团清洁能源技术研究院有限公司 | Protection system suitable for photovoltaic power station and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4518817A (en) * | 1983-02-22 | 1985-05-21 | Kirby James R | Buried conductor cable energy distribution system with conductor loop enclosure |
| CN203481759U (en) * | 2013-10-17 | 2014-03-12 | 商城县供电有限责任公司 | Cable trench cover plate |
| CN203932934U (en) * | 2014-05-09 | 2014-11-05 | 国家电网公司 | The anti-toy safe perspective type cable channel cover plate of taking precautions against natural calamities |
| CN206977000U (en) * | 2017-08-07 | 2018-02-06 | 广东水电二局股份有限公司 | A kind of direct-burried high-voltage cable joint protection structure |
-
2017
- 2017-08-07 CN CN201710667836.0A patent/CN107240901B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4518817A (en) * | 1983-02-22 | 1985-05-21 | Kirby James R | Buried conductor cable energy distribution system with conductor loop enclosure |
| CN203481759U (en) * | 2013-10-17 | 2014-03-12 | 商城县供电有限责任公司 | Cable trench cover plate |
| CN203932934U (en) * | 2014-05-09 | 2014-11-05 | 国家电网公司 | The anti-toy safe perspective type cable channel cover plate of taking precautions against natural calamities |
| CN206977000U (en) * | 2017-08-07 | 2018-02-06 | 广东水电二局股份有限公司 | A kind of direct-burried high-voltage cable joint protection structure |
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| Publication number | Publication date |
|---|---|
| CN107240901A (en) | 2017-10-10 |
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