CN105680406A - Cable joint structure - Google Patents

Cable joint structure Download PDF

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Publication number
CN105680406A
CN105680406A CN201610132265.6A CN201610132265A CN105680406A CN 105680406 A CN105680406 A CN 105680406A CN 201610132265 A CN201610132265 A CN 201610132265A CN 105680406 A CN105680406 A CN 105680406A
Authority
CN
China
Prior art keywords
cable
cables
wiring section
main loop
duplexure
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.)
Granted
Application number
CN201610132265.6A
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Chinese (zh)
Other versions
CN105680406B (en
Inventor
齐道坤
刘湘莅
郭新菊
陈晨
席小娟
梁晨
肖波
李勇
张少辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Economic and Technological Research Institute of State Grid Henan Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Economic and Technological Research Institute of State Grid Henan Electric Power Co Ltd
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Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Economic and Technological Research Institute of State Grid Henan Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201610132265.6A priority Critical patent/CN105680406B/en
Publication of CN105680406A publication Critical patent/CN105680406A/en
Application granted granted Critical
Publication of CN105680406B publication Critical patent/CN105680406B/en
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00Cable fittings
    • H02G15/08Cable junctions
    • H02G15/18Cable junctions protected by sleeves, e.g. for communication cable
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section

Landscapes

  • Cable Accessories (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

The invention provides a cable joint structure, which comprises at least two cables with connection segments, wherein the connection segments of all cables comprise exposed conductors which are in conductive connection correspondingly according to a phase sequence respectively; solid insulating sheaths for completely wrapping the conductive connection parts are cast and solidified on the conductive connection parts of the exposed conductors of the connection segments of all cables, so that, on one hand, effective conductive connection is ensured; and on the other hand, effective insulating protection is also ensured. The cable joint structure can be fabricated on site, can ensure effective connection of a main loop cable and branch loop circuits, is flexible and convenient, can adjust the positions of the conductive connection parts and the sizes of the solid insulating sheaths according to the actual requirements and effectively solves the problems that a branch box is large in floor area, a joint is easy to loosen and the operating maintenance amount is large when branch connection is achieved by the branch box in the past.

Description

A kind of cable connector structure
Technical field
The present invention relates to a kind of cable connector structure.
Background technology
In the connected mode of low-voltage distributing line, branch connection is the mode of connection comparatively commonly used, in the branch connection of low-voltage cable circuit, owing to branch connection needs to divest oversheath and the insulating barrier of major loop low-voltage cable and duplexure low-voltage cable, cause the destruction of insulating layer of conductor, in order to ensure power supply safety, it is necessary to recover the insulating properties of conductor part after wiring completes.
Conventional low-voltage cable branch joint is to adopt prefabrication branch cable or realized branch connection and the insulation recovery of low-voltage cable by external low-voltage cable junction box. wherein prefabrication branch cable not only needs strict in-site measurement, macrocyclic process-cycle, and the pre-fabricated electric cables owing to dispatching from the factory is major loop cable integrated with duplexure cable, not only need for reserved suitable length of constructing, and causing great difficulty to site operation, prefabricated branch cable makes its cost remain high due to features such as its processing technique complexity, process-cycle length, major loop and duplexure low-voltage cable utilize the method realizing branch connection in external low-voltage cable branch box, architectural characteristic due to low-voltage cable junction box, make it cannot realize directly buried installation mode and need to arrange installation site for external low-voltage cable branch box, feeder pillar floor space is big, operation maintenance amount is also bigger, simultaneously need to the cable by major loop and duplexure is simultaneously introduced low-voltage cable junction box, the waste of cable material certainly will be caused, and major loop and duplexure cable are to be fastened by bus bar and bolt to realize electrical connection when adopting low-voltage cable junction box, easily cause the contact heating owing to loose contact causes, even thus initiation fire accident time serious.
Summary of the invention
The present invention provides a kind of cable connector structure, needs to use at the scene, with what solve to exist in prior art, the technical problem that cable branch box floor space is big, operation maintenance amount is big.
The technical scheme of cable connector structure provided by the present invention is: a kind of cable connector structure, including at least two cables being respectively provided with wiring section, the wiring section of all cables is respectively provided with the bare exposed conductor being conductively connected according to phase sequence correspondence, the place's of being conductively connected cast cured explosive that the bare exposed conductor of the wiring section of all cables is conductively connected have fully wrapped around described in be conductively connected the solid insulation sheath at place.
The wiring section of all cables is the wiring section divesting oversheath, and it is on that oversheath extended to outside the corresponding wiring section of all cables that described solid insulation sheath is put along the extension of each cable.
All cables include at least one main loop cabling and at least one duplexure cable, and the wiring section of main loop cabling is arranged at the middle part of main loop cabling, and the wiring section of duplexure cable is arranged at one end of duplexure cable.
Described main loop cabling and duplexure cable are respectively provided with biphase above heart yearn, the bare exposed conductor of each phase heart yearn of the wiring section of main loop cabling and duplexure cable to be conductively connected place spaced apart successively along main loop cabling bearing of trend.
The bare exposed conductor of all cables respectively through crimping armor clamp conductive crimp be assembled together realize all cables and be conductively connected according to phase sequence.
The invention has the beneficial effects as follows: in cable connector structure provided by the present invention, the bare exposed conductor of the wiring section of all cables is conductively connected according to phase sequence correspondence, the fully wrapped around solid insulation sheath being conductively connected place of this place's of being conductively connected cast cured explosive, by solid insulation sheath to form the insulation protection structure of bare exposed conductor, ensure on the one hand to be effectively conductively connected, also ensure effective insulation protection on the other hand. this cable connector structure can make at the scene, both the skinning operations of cable to be connected can have been carried out at the scene, by the bare exposed conductor of all cables to be connected according to corresponding being electrically connected together of phase sequence, then casting mold is utilized to be conductively connected cast liquid megohmite insulant everywhere, solid insulation sheath is formed, to realize the solid to all cable junctions and insulation protection after it solidifies. not only can ensure effective connection of main loop cabling and duplexure circuit, and, flexibly and easily, the size of the position being conductively connected place and solid insulation sheath can be adjusted according to actual needs, efficiently solve conventional low pressure pre-branched cable due to the cycle needing prefabrication to cause long, investment height, the problem of site operation difficulty, simultaneously, also efficiently solve and adopt the feeder pillar floor space that feeder pillar exists when realizing branch connection big in the past, joint easily loosens, the problem that operation maintenance amount is big, simultaneously, it also avoid main loop cabling and duplexure cable when adopting feeder pillar and fastened the contact heating realizing electrical connection and easily occur by bus bar and bolt, the problem that there is disaster hidden-trouble.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of cable connector structure provided by the present invention.
Detailed description of the invention
As shown in Figure 1, a kind of embodiment of cable connector structure, joint design in this embodiment includes two cables being respectively provided with wiring section, these two cables are a main loop cabling 1 and a duplexure cable 2, wherein, the wiring section 11 of main loop cabling 1 is arranged on the middle part of main loop cabling 1, the wiring section 21 of duplexure cable 2 is arranged on one end of duplexure cable 2, main loop cabling 1 is respectively provided with according to the corresponding bare exposed conductor being conductively connected of phase sequence with the wiring section of duplexure cable 2, the bare exposed conductor of the bare exposed conductor of each phase on main loop cabling 1 and each phase on duplexure cable 2 is assembled together by crimping armor clamp 4 conductive crimp, the place's of being conductively connected cast cured explosive that the bare exposed conductor of the bare exposed conductor of main loop cabling 1 and duplexure cable 2 is conductively connected has the fully wrapped around above-mentioned solid insulation sheath 3 being conductively connected place.In the present embodiment, the wiring section of two cables is the wiring section divesting cable jacket, and for ensureing the effect of insulation parcel, solid insulation sheath 3 extends on the oversheath outside the corresponding wiring section of two cables along the bearing of trend of each cable.
In the present embodiment, main loop cabling 1 and duplexure cable 2 are quad, including A phase, B phase, C phase and ground wire, during wiring, main loop cabling 1 is connected according to phase sequence is corresponding with duplexure cable 2, further, the bare exposed conductor of each phase heart yearn to be conductively connected place spaced apart successively along major loop bearing of trend, spacing is not less than the leakage distance of 1 times.
When specifically making, cable connector structure can be made at the scene as steps described below:
(1) bare exposed conductor of the bare exposed conductor of main loop cabling 1 Yu duplexure cable 2 is conductively connected according to phase sequence;
(2) at the place's of being conductively connected suit casting mold of the bare exposed conductor of main loop cabling 1 with the bare exposed conductor of duplexure cable 2; liquid dielectric material is injected in casting mold; formed after solidification and described in parcel, be conductively connected the solid insulation shell at place, it is achieved to the protection of duplexure cable and main loop cabling wiring place to complete field connection.
In the cable connector structure that above-described embodiment provides, mode by main loop cabling and the field splicing of duplexure cable, in-situ FTIR spectroelectrochemitry solid insulating layer, realize the field fabrication of cable connector structure, avoid prefabrication branch cable process-cycle length, a high problem handed over by material, avoids simultaneously and rolls off the production line the problem that the feeder pillar floor space caused is big, joint easily loosens, operation maintenance amount is big and low-voltage cable need to introduce the waste of material that feeder pillar causes owing to adopting low pressure feeder pillar to realize low-voltage cable branch.
In above-described embodiment, two cables include main loop cabling and duplexure cable, in other embodiments, it is also possible to arrange the duplexure cable of a main loop cabling and more than two. Certainly, in other embodiments, it is also possible to realize the docking of two main loop cablings.
In above-described embodiment, being conductively connected between the bare exposed conductor of main loop cabling and duplexure cable is realized by crimping armor clamp, and crimping armor clamp can adopt the conduction gold utensil of C type yoke configurations. In other embodiments, it is also possible to realized by the mode being welded to connect.

Claims (5)

1. a cable connector structure, including at least two cables being respectively provided with wiring section, it is characterized in that: the wiring section of all cables is respectively provided with the bare exposed conductor being conductively connected according to phase sequence correspondence, the place's of being conductively connected cast cured explosive that the bare exposed conductor of the wiring section of all cables is conductively connected have fully wrapped around described in be conductively connected the solid insulation sheath at place.
2. cable connector structure according to claim 1, it is characterized in that: the wiring section of all cables is the wiring section divesting oversheath, it is on that oversheath extended to outside the corresponding wiring section of all cables that described solid insulation sheath is put along the extension of each cable.
3. cable connector structure according to claim 1 and 2, it is characterized in that: all cables include at least one main loop cabling and at least one duplexure cable, the wiring section of main loop cabling is arranged at the middle part of main loop cabling, and the wiring section of duplexure cable is arranged at one end of duplexure cable.
4. cable connector structure according to claim 3, it is characterized in that: described main loop cabling and duplexure cable are respectively provided with biphase above heart yearn, the bare exposed conductor of each phase heart yearn of the wiring section of main loop cabling and duplexure cable to be conductively connected place spaced apart successively along main loop cabling bearing of trend.
5. cable connector structure according to claim 1 and 2, it is characterised in that: the bare exposed conductor of all cables respectively through crimping armor clamp conductive crimp be assembled together realize all cables and be conductively connected according to phase sequence.
CN201610132265.6A 2016-03-09 2016-03-09 A kind of cable connector structure Active CN105680406B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610132265.6A CN105680406B (en) 2016-03-09 2016-03-09 A kind of cable connector structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610132265.6A CN105680406B (en) 2016-03-09 2016-03-09 A kind of cable connector structure

Publications (2)

Publication Number Publication Date
CN105680406A true CN105680406A (en) 2016-06-15
CN105680406B CN105680406B (en) 2017-11-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108899860A (en) * 2018-09-04 2018-11-27 沈阳伊思特机器人自动化科技有限公司 Fireproof cable dividing box

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1195872A1 (en) * 2000-10-05 2002-04-10 Nexans Cable joint with improved screen connection
CN102751693A (en) * 2012-07-18 2012-10-24 江苏金圣电缆有限公司 Prefabricated branch cable
CN102882019A (en) * 2012-10-18 2013-01-16 江苏荣宜电缆有限公司 Branch cable
CN205377251U (en) * 2016-03-09 2016-07-06 国家电网公司 Cable joint structure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1195872A1 (en) * 2000-10-05 2002-04-10 Nexans Cable joint with improved screen connection
CN102751693A (en) * 2012-07-18 2012-10-24 江苏金圣电缆有限公司 Prefabricated branch cable
CN102882019A (en) * 2012-10-18 2013-01-16 江苏荣宜电缆有限公司 Branch cable
CN205377251U (en) * 2016-03-09 2016-07-06 国家电网公司 Cable joint structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108899860A (en) * 2018-09-04 2018-11-27 沈阳伊思特机器人自动化科技有限公司 Fireproof cable dividing box
CN108899860B (en) * 2018-09-04 2024-03-29 沈阳北方艾克电缆有限公司 Fireproof cable branch box

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