CN102969691A - Cable butt-joint box - Google Patents
Cable butt-joint box Download PDFInfo
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- CN102969691A CN102969691A CN2012105237118A CN201210523711A CN102969691A CN 102969691 A CN102969691 A CN 102969691A CN 2012105237118 A CN2012105237118 A CN 2012105237118A CN 201210523711 A CN201210523711 A CN 201210523711A CN 102969691 A CN102969691 A CN 102969691A
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- cable
- joint
- terminating plug
- plug
- transition joint
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Abstract
The invention discloses a cable butt-joint box, comprising a box body provided with a cable hole, a bracket fixedly arranged inside the box body, a plurality of middle joints fixedly arranged on the bracket in a penetrating manner, and a terminal plug spliced with the both ends of each middle joint, wherein the both ends of the middle joint are respectively located at the both sides of the bracket; one end of the terminal plug and the other end of the terminal plug, which is connected with the middle joint, are connected through a cable; and the cable is arranged inside the cable hole in a penetrating manner. According to the cable butt-joint box provided by the invention, the cables are connected by using the connected middle joints and the terminal plug, so that the reliability of the operation of a cable circuit can be improved; the influence of a manual factor in a cable connection process can be reduced; the maintenance time of the cable circuit can be reduced; and the mounting process can be simplified. Therefore, the treatment of an electric field stress at a cable stripping position has controllability, and the cable butt-joint box has dismounting property.
Description
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Technical field
the present invention relates to appliance field, particularly a kind of cable butt connecting box.
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Background technology
current, China's electric power system is in upgrading urban and rural power grids period, Urban Electric Network Cabling, and the enforcement of the measures such as distribution automation, the transformation of 10KV suspended insulated guide wire, make the reliability of distribution obtain corresponding raising.
along with deepening continuously of city cable chemical industry journey, the reliability service of 10KV electric pressure cable line is vital to improving power supply reliability.For the cable line connected to form by many (every be about be 200-400 meters) cables, in the middle of cable, interconnection technique is the key factor of cable line reliability service.
the 10KV intermediate joint of electric cable has experienced the development course of epoxy resin casting type, thermal shrinkage type, silicon rubber prefabricated.
wrapped epoxy resin casting type cable intermediate joint is eliminated.It is poor that the thermal shrinkage type cable intermediate joint exists sealing, and it is compound overlapping that its insulation adopts multilayer supplementary insulation pipe to carry out, and air gap between layers is in operation and can generation office puts.
the silicone rubber prefabricated cable transition joint has good insulation and sealing property.Its insulator, stress cone shot moulding, have unified shape and size, simplified installation process.The main chain of silicon rubber is comprised of silicon-oxygen key, and carbon-containing molecules not has the characteristic of inorganic material, and anti-electrical carbon trace, corona resistance, electric erosion resistance are all better.Silicon rubber is cold-resistant, heat resistance is superior, its electrical property, physical property, stable mechanical performance in the scope of-80 ~ 250 ℃.Secondly, silicon rubber has good hydrophobicity, migration of hydrophobicity, so the performance that moisture-resistant dodges, anti-soil dodges is good.Anti-aging, the anti-ultraviolet aging better performances of silicon rubber, can be used for various rugged environments.
silicon rubber elastic is good, and its molecular structure makes it have very low vitrification point and crystallization temperature, even also have at low temperatures elasticity preferably.Compare the pyrocondensation annex, if after installing, cable rubs, bending, may cause each pyrocondensation parts to throw off and cause that office puts, and the silicon rubber prefab cable accessory can rub after installation, bending, affects hardly its interfacial characteristics.The conductive coefficient of silicon rubber is 2 times of ordinary rubber, is conducive to the cable heat radiation and improves ampacity.
above two kinds of cable intermediate joints, respectively have its pluses and minuses, but they have one shortcoming is arranged jointly, are disposable transition joint, make every effort to recover the primary characteristic of cable.Because this transition joint remains, be arranged in cable trough, this just proposes extremely strict requirement to the sealing of transition joint, makes again the electric field stress at cable joint place is processed and had uncertainty.The reliability of this cable intermediate joint is strong especially to the dependence of construction technology, as seals badly, and cable joint immersion, quick-fried phenomenon can occur.The electric field stress of joint is processed bad, and minor insulation also punctures can make the cable joint place blast.In addition, this transition joint is disposable, non-dismountable, makes troubles to the troubleshoot in cable line.By the existing technology of China, the fault that searches cable line is very time taking.
in view of above factors, in order to improve 10KV cable line reliability of operation, eliminate the impact of human factor in the cable connection procedure, shorten the repair time of cable line, sufficient market survey and technological demonstration are passed through by my company, research and develop " 10KV cable butt connecting box ", change traditional cable intermediate joint into two cable terminations and connect in case.
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Summary of the invention
the purpose of this invention is to provide a kind of reliability high, overhaul cable butt connecting box easily.
for solving the problems of the technologies described above, the present invention adopts following technical scheme: a kind of cable butt connecting box, it comprises the casing that offers cable aperture, be fixed in support in casing, fixedly be arranged in a plurality of transition joint on support, and the terminating plug that plugs of the two ends of each described transition joint, the two ends of described transition joint lay respectively at the both sides of support, the described terminating plug one end other end that is connected with transition joint is connected with cable, and described cable is arranged in cable aperture.
optimize the bilateral sleeve pipe that described transition joint is the moulding of dioxygen resin-cast.
optimize, described terminating plug is prefabricated silastic terminal plug.
optimize, described support is the plate that is parallel to wall box.
further, all cables of described support the same side are coated in same sheath.
optimize, be connected on the terminating plug in transition joint and also be connected with at least one terminating plug, each described terminating plug is the T font, each described terminating plug comprise conllinear front tab, rear tab, be vertically connected at the vertical joint between front tab and rear tab, described front tab and rear tab conllinear, the rear tab of each described terminating plug is connected with the front tab phase bolt of the terminating plug be adjacent.
further, the corrosion resistant plate that described casing and support are 2～4mm by thickness is made.
beneficial effect of the present invention is: the transition joint that utilization of the present invention is connected and terminating plug are realized being connected between cable and cable, improve the cable line reliability of operation, eliminate the impact of human factor in the cable connection procedure, shorten the repair time of cable line, simplified mounting process, make the processing of cable stripping place electric field stress there is controllability, and there is dismantled and assembled characteristic.
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The accompanying drawing explanation
the front view that accompanying drawing 1 is the embodiment of the present invention one;
the left view that accompanying drawing 2 is the embodiment of the present invention one;
the front view that accompanying drawing 3 is the embodiment of the present invention three;
the left view that accompanying drawing 4 is the embodiment of the present invention three;
accompanying drawing 5 is terminating plug in the embodiment of the present invention one and the connection diagram of transition joint;
accompanying drawing 6 is terminating plug in the embodiment of the present invention three and the connection diagram of transition joint;
the structural representation that accompanying drawing 7 is the embodiment of the present invention four;
in accompanying drawing: 1, casing; 2, transition joint; 3, terminating plug; 4, sheath; 5, support; 6, cable; 11 cable aperture; 12, case lid; 13, anti-theft lock; 31, front tab; 32, rear tab; 33, vertical joint.
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Embodiment
below in conjunction with embodiment shown in the drawings, the present invention is described in detail below.
embodiment mono-
as Fig. 1, shown in 2, this cable butt connecting box comprises the casing 1 that offers cable aperture 11, parallel with casing 1 one of them sidewall and be tabular support 5, fixedly be arranged in a plurality of transition joint 2 on support 5, the terminating plug 3 plugged with the two ends of each described transition joint 2, usually each cable butt connecting box has three transition joints 2, the Qie Qi two ends, both sides that the two ends of each described transition joint 2 lay respectively at support 5 connect respectively a terminating plug 3, therefore an end of each terminating plug 3 other end that is connected with transition joint 2 is connected with cable 6, thereby realize the connection to two sections cables 6.Described cable 6 is entered in casing 1 by cable aperture 11.
each described terminating plug 3 is the T font, each described terminating plug 3 comprise conllinear front tab 31, rear tab 32, be vertically connected at the vertical joint 33 between front tab 31 and rear tab 32, described front tab 31 and rear tab 32 conllinear.
in the present embodiment, casing 1 and support 5 are made by the 2mm corrosion resistant plate, and are installed on ground.Because needs are overhauled terminating plug 3 and transition joint 2; Install on the ground, can there be stolen danger in cable butt connecting box simultaneously.Therefore, going back hinge on described casing 1 has case lid 12, and the anti-theft lock 13 be used in combination with case lid 12 is installed on casing 1.
the bilateral sleeve pipe of epoxy resin casting and silicon rubber prefabricated terminating plug are connected and have met the requirement of all insulation; Anti-aging, elastomeric characteristics that silicon rubber has; Silicon rubber has good hydrophobicity and migration of hydrophobicity.Therefore prefabricated silastic terminal plug has good moisture-resistant sudden strain of a muscle, anti-soil sudden strain of a muscle performance.For these reasons, in the present embodiment, all transition joints 2 are the bilateral sleeve pipe of dioxygen resin-cast moulding, and all terminating plugs 3 are prefabricated silastic terminal plug.As shown in Figure 5, between the vertical plug 33 of cable 6 and terminating plug 3, all adopt the mode of interference fit between the front tab 31 of terminating plug 3 and transition joint 2, and scribble installation cream on plug surface, make mounted terminating plug 3 there is good sealing property, water resistance with transition joint 2.
cable to different size and material is docked, as the copper cash of 120mm2 docks with the copper cash of 120mm2, the aluminum steel of 95mm2 docks with the copper cash of 95mm2, the aluminum steel of 240mm2 docks with the copper cash of 95mm2, only need to adopt the corresponding terminating plug 3 of size to get final product, therefore range of application of the present invention is also comparatively extensive.
embodiment bis-
the distinctive points of the present embodiment and embodiment mono-is, two terminating plugs 3 that will be connected with transition joint 2 are changed to crosslinked cable terminating plug and oil compression cable terminating plug, just can realize docking of crosslinked cable and oil compression cable.
embodiment tri-
as shown in Figure 3,4, the present embodiment and embodiment once distinctive points be: on the rear tab 32 of one of them terminating plug 3 be connected with transition joint 2, by the copper connecting rod, adopt bolted to connect another terminating plug 3 and can realize that " T " meets branch, and simple and convenient.
further, as shown in Figure 6, many rows transition joint 2 and terminating plug 3 are set on support 5 and just can realize that the multi-loop electric source power cable docks in same infield.
embodiment tetra-
if be subject to environmental limitations, this cable butt connecting box also can adopt and be arranged in cable trough, and in the present embodiment, the cable butting box structure is identical with the cable butt connecting box of embodiment tri-.As shown in Figure 7, cable butt connecting box is embedded in cable trough, and power distribution cabinet 7 is installed on the ground.
in sum, cable butt connecting box all insulation, hermetically sealed, dismantled and assembled and can " T " connect the performance of branch, to cable butting, especially traditional 10KV cable intermediate junction device has been carried out to the once improvement of " revolutionary character ", simplified the technique connected in the middle of cable, improved the operational reliability of cable intermediate connection point, made traditional disposable cable intermediate joint become removable cable intermediate junction device.It has filled up a blank of 10KV cable connection area, has also solved the technical barrier that in the net cabling reconstructing of city, cable connects.
above-described embodiment is only explanation technical conceive of the present invention and characteristics, and its purpose is to allow the person skilled in the art can understand content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences that spirit is done according to the present invention change or modify, within all should being encompassed in protection scope of the present invention.
Claims (7)
1. a cable butt connecting box, it is for connecting the multistage cable, it is characterized in that: it comprises the casing (1) that offers cable aperture (11), be fixed in the support (5) in casing (1), fixedly be arranged in a plurality of transition joint (2) on support (5), the terminating plug (3) plugged with the two ends of each described transition joint (2), the two ends of described transition joint (2) lay respectively at the both sides of support (5), described terminating plug (3) the one ends other end that is connected with transition joint (2) is connected with cable (6), described cable (6) is arranged in cable aperture (11).
2. cable butt connecting box according to claim 1, it is characterized in that: described transition joint (2) is the bilateral sleeve pipe of dioxygen resin-cast moulding.
3. cable butt connecting box according to claim 1, it is characterized in that: described terminating plug (3) is prefabricated silastic terminal plug.
4. cable butt connecting box according to claim 1 is characterized in that: described support (5) is for being parallel to the plate of casing (1) sidewall.
5. cable butt connecting box according to claim 1, it is characterized in that: all cables of described support (5) the same side are coated in same sheath (4).
6. cable butt connecting box according to claim 1, it is characterized in that: be connected on the terminating plug (3) in transition joint (2) and also be connected with at least one terminating plug (3), each described terminating plug (3) is the T font, each described terminating plug (3) comprises the front tab (31) of conllinear, rear tab (32), be vertically connected at the vertical joint (33) between front tab (31) and rear tab (32), described front tab (31) and rear tab (32) conllinear, the rear tab (32) of each described terminating plug (3) is connected with front tab (31) the phase bolt of the terminating plug be adjacent (3).
7. cable butt connecting box according to claim 1, it is characterized in that: the corrosion resistant plate that described casing (1) and support (5) are 2～4mm by thickness is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105237118A CN102969691A (en) | 2012-12-07 | 2012-12-07 | Cable butt-joint box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105237118A CN102969691A (en) | 2012-12-07 | 2012-12-07 | Cable butt-joint box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102969691A true CN102969691A (en) | 2013-03-13 |
Family
ID=47799654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105237118A Pending CN102969691A (en) | 2012-12-07 | 2012-12-07 | Cable butt-joint box |
Country Status (1)
| Country | Link |
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| CN (1) | CN102969691A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107123965A (en) * | 2017-05-21 | 2017-09-01 | 深圳市罗庚电气有限公司 | A kind of 35kV prefabricated cables transition joint |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2482250Y (en) * | 2001-04-18 | 2002-03-13 | 深圳市惠程电气有限责任公司 | Cable butt connecting box |
| CN201252387Y (en) * | 2008-08-29 | 2009-06-03 | 广东吉熙安电缆附件有限公司 | 10kV power cable tapping box capable of realizing cable butting |
| CN201315459Y (en) * | 2008-12-22 | 2009-09-23 | 武汉科锐电气有限公司 | Front connector of high-voltage cable |
| CN203039332U (en) * | 2012-12-07 | 2013-07-03 | 江苏省电力公司张家港市供电公司 | Cable butt-joint box |
-
2012
- 2012-12-07 CN CN2012105237118A patent/CN102969691A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2482250Y (en) * | 2001-04-18 | 2002-03-13 | 深圳市惠程电气有限责任公司 | Cable butt connecting box |
| CN201252387Y (en) * | 2008-08-29 | 2009-06-03 | 广东吉熙安电缆附件有限公司 | 10kV power cable tapping box capable of realizing cable butting |
| CN201315459Y (en) * | 2008-12-22 | 2009-09-23 | 武汉科锐电气有限公司 | Front connector of high-voltage cable |
| CN203039332U (en) * | 2012-12-07 | 2013-07-03 | 江苏省电力公司张家港市供电公司 | Cable butt-joint box |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107123965A (en) * | 2017-05-21 | 2017-09-01 | 深圳市罗庚电气有限公司 | A kind of 35kV prefabricated cables transition joint |
| CN107123965B (en) * | 2017-05-21 | 2019-09-20 | 深圳市罗庚电气有限公司 | A kind of 35kV prefabricated cable transition joint |
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Application publication date: 20130313 |