CN201698788U - Prefabricated multi-core coaxial branch cable - Google Patents
Prefabricated multi-core coaxial branch cable Download PDFInfo
- Publication number
- CN201698788U CN201698788U CN2009202019986U CN200920201998U CN201698788U CN 201698788 U CN201698788 U CN 201698788U CN 2009202019986 U CN2009202019986 U CN 2009202019986U CN 200920201998 U CN200920201998 U CN 200920201998U CN 201698788 U CN201698788 U CN 201698788U
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- cable
- branch
- branch cable
- outer layer
- leader
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- Expired - Fee Related
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Abstract
The utility model discloses a prefabricated multi-core coaxial branch cable which comprises an overall outer layered insulating sheath, and a main cable and a branch cable in the overall outer layered insulating sheath; the main cable and the branch cable are crimped together through connecting pieces to form branch connecting bodies; all phase branch connecting bodies are respectively and independently inject molded, encapsulated and formed; U-shaped branch connector connecting pieces are adopted as the connecting pieces; and enough dislocation distance S is kept between all the phase branch connecting bodies which are respectively and independently encapsulated and formed. Because the utility model adopts the technical scheme, the electrical properties, insulation strength, water tightness, air tightness, reliability and consistency of a power cable which is put into operation are greatly improved, so that the operation fault rate of the power cable under normal circumstance is greatly reduced so as to achieve the maintenance-free high-reliability operation status. All branches and connectors of the cable are prefabricated in a professional factory, so that the on-site construction equipment is reduced, the technical requirements are reduced, the cost is greatly reduced and the time is greatly shortened.
Description
Technical field
The utility model relates to a kind of multi-core coaxial branch cable.
Background technology
Power cable branch in the known technology, the processing of joint, generally all be in the cable laying job site, on concrete branch or joint location, cut and peel off one section cable outer layer sheath, internal memory insulation, then with U type connector by instruments such as hydraulic tongs with two strip off sheaths, the insulation after two cable conductors be crimped on together, insulate with epoxy resin or other insulating material more at last and seal processing.Its defective is:
1, dielectric strength is difficult to guarantee, reliability, consistency are poor;
2, the job site occupied ground is big; The specification requirement height; Cycle time is long; Expense is big.
Though the utility model patent (as: CN2411542Y) and the utility model patent open (as: CN1308343A) of prefabricated multi-core branch cable are also arranged, but what proposed in fact all is single core multiple-limb, it promptly is the same position on single-core cable, produce many branches simultaneously, still there is deficiency in it:
1, fail to carry out multicore same-phase branch on A, B, C, N, PE multicore coaxial cable, therefore will reach the purpose of phase three-wire three, three-phase and four-line, Three-phase five-wire power supply, necessary three, four, five various independently cables make up just and can finish;
2, limited to when cable shaft, cable passage or construction occasion, just can't be realized in the time of must using multicore coaxial cable to meet the demands.
The utility model content
The purpose of this utility model is to provide a kind of precast multicored coaxial branch cable, and can effectively solve existing power cable branch process dielectric strength and be difficult to guarantee, poor reliability, the cycle is long, the problem that expense is big.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of precast multicored coaxial branch cable, comprise leader cable and branch cable in overall outer layer insulation sheath and the overall outer layer insulation sheath, it is characterized in that: leader cable and branch cable are crimped on by connector and form branch's connected body together, and moulding is sealed in the independent separately injection moulding of each phase place branch connected body.
Preferably, connector adopts U type branch joint connector.
Further, each phase place branch's connected body of independently sealing moulding separately keeps enough dislocation apart from S each other.
Further, leader cable comprises the leader cable conductor core wire, and leader cable conductor core wire outside is provided with separately independently leader cable primary insulation.
Further, injection mo(u)lding is sealed by leader cable outer layer insulation sheath in each leader cable primary insulation outside.
Further, branch cable comprises the branch cable conductor core wire, and branch cable conductor core wire outside is provided with separately independently branch cable primary insulation.
Further, injection mo(u)lding is sealed by branch cable outer layer insulation sheath in each branch cable primary insulation outside.
Further, injection mo(u)lding is sealed by main overall outer layer insulation sheath in leader cable outer layer insulation sheath and branch cable outer layer insulation sheath outside.
The utility model is owing to adopted technique scheme, the power cable that puts into operation all is being greatly enhanced aspect electrical characteristic, dielectric strength, watertightness, air-tightness, reliability, the consistency, make power cable under normal circumstances the operation troubles rate descend significantly, reach non-maintaining highly reliable running status.All branches and joint prefabricated finishing in specialized factory that this cable will need when paying the unit in charge of construction scene reduce site operation equipment, and specification requirement reduces, and expense descends significantly, and the time shortens in a large number.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the structural representation of a kind of precast multicored coaxial branch cable monnolithic case of the utility model;
Fig. 2 is an internal structure schematic diagram of the present utility model;
Fig. 3 be among Fig. 2 A-A to the structure enlarged diagram;
Fig. 4 be among Fig. 2 B1-B1 to cutaway view;
Fig. 5 be among Fig. 2 B2-B2 to cutaway view;
Fig. 6 be among Fig. 2 B3-B3 to amplification view.
Embodiment
Extremely shown in Figure 6 as Fig. 1, be a kind of precast multicored coaxial branch cable of the utility model, comprise leader cable 2 and branch cable 4 in overall outer layer insulation sheath 6 and the overall outer layer insulation sheath 6, leader cable 2 comprises leader cable conductor core wire 22, leader cable conductor core wire 22 outsides are provided with separately independently leader cable primary insulation 12,13,14,15,16, and injection mo(u)lding is sealed by leader cable outer layer insulation sheath 3 in each leader cable primary insulation outside; Branch cable 4 comprises branch cable conductor core wire 24, branch cable conductor core wire 24 outsides are provided with separately independently branch cable primary insulation 17,18,19,20,21, and injection mo(u)lding is sealed by branch cable outer layer insulation sheath 5 in each branch cable primary insulation outside.Leader cable 2 and branch cable 4 are crimped on by connector 23 and form branch's connected body 7,8,9,10,11 together, preferred connector adopts U type branch joint connector 23, moulding is sealed in the independent separately injection moulding of each phase place branch connected body, injection mo(u)lding is sealed by main overall outer layer insulation sheath 6 in leader cable outer layer insulation sheath 3 and branch cable outer layer insulation sheath 5 outsides, and branch's connected body that each phase place is independently sealed moulding separately keeps enough dislocation apart from S each other.
According to specification, model, the cross section of the designed multicore coaxial cable of architectural design department, and on design drawing the position of defined, on leader cable 2, cut the leader cable outer layer insulation sheath 3 of stripping respective length; Independently cut the primary insulation of leader cable separately 12,13,14,15,16 of shelling respective length on the relevant position of insulated conductor separately at multicore coaxial cable again.When cutting stripping leader cable primary insulation, it is also noted that the creepage distance that keeps between each phase conductor, promptly the mutual dislocation after the primary insulation injection process is apart from S.
According to branch cable specification, model, the cross section of defined on the design drawing, cut the branch cable outer layer insulation sheath sheath 5 of stripping suitable length at its position, termination again; (it is three during three cores: A, B, C three-phase with many then; During four-core be four: A, B, C, N phase; During five cores be five: A, B, C, N, PE phase) according to the phase place colour code identical with leader cable, make and peel off primary insulation, expose the relevant position length of leader cable conductor core wire in order, cut redundance, peel off the multi-core branch cable primary insulation 17,18,19,20,21 of respective length again.
Each branch cable conductor core wire 24 according to phase place colour code separately, is snapped into separately on the leader cable conductor core wire 22; Again with preparing forming U type branch joint connector 23, on particular manufacturing craft, special equipment, professional production line,, and it is reached and keep designing institute required pressure and intensity U type branch joint connector 23 and leader cable conductor core wire 22 and the 24 crimping moulding of branch cable conductor core wire.
After above-mentioned every work is finished, through after the assay was approved, can enter next bar special production line, with the primary insulation injection moulding of each phase branch connected body of precast multicored coaxial cable, seal moulding, be encapsulated in each mutually independently on the branch joint with special equipment and particular manufacturing craft with 7,8,9,10,11.Through after the assay was approved, can change next bar professional production line over to, with special equipment and particular manufacturing craft overall outer layer insulation sheath 6 injection mouldings of multi-core coaxial branch connected body are sealed, check, dispatched from the factory.So far, precast multicored coaxial branch cable on the professional production line, is finished with production equipment special and particular manufacturing craft production.
Implementing best mode of the present utility model is at the professional production line, produces with special equipment and particular manufacturing craft.
Claims (8)
1. precast multicored coaxial branch cable, comprise leader cable (2) and branch cable (4) in overall outer layer insulation sheath (6) and the described overall outer layer insulation sheath (6), it is characterized in that: described leader cable (2) and branch cable (4) are crimped on by connector (23) and form branch's connected body (7,8,9,10,11) together, and moulding is sealed in the independent separately injection moulding of described each phase place branch connected body (7,8,9,10,11).
2. a kind of precast multicored coaxial branch cable according to claim 1 is characterized in that: described connector adopts U type branch joint connector (23).
3. a kind of precast multicored coaxial branch cable according to claim 1 is characterized in that: branch's connected body (7,8,9,10,11) that described each phase place is independently sealed moulding separately keeps enough dislocation apart from S each other.
4. a kind of precast multicored coaxial branch cable according to claim 1, it is characterized in that: described leader cable (2) comprises leader cable conductor core wire (22), and described leader cable conductor core wire (22) outside is provided with separately independently leader cable primary insulation (12,13,14,15,16).
5. a kind of precast multicored coaxial branch cable according to claim 4 is characterized in that: described each leader cable primary insulation (12,13,14,15,16) is outside seals injection mo(u)lding by leader cable outer layer insulation sheath (3).
6. a kind of precast multicored coaxial branch cable according to claim 1, it is characterized in that: described branch cable (4) comprises branch cable conductor core wire (24), and described branch cable conductor core wire (24) outside is provided with separately independently branch cable primary insulation (17,18,19,20,21).
7. a kind of precast multicored coaxial branch cable according to claim 6 is characterized in that: described each branch cable primary insulation (17,18,19,20,21) is outside seals injection mo(u)lding by branch cable outer layer insulation sheath (5).
8. a kind of precast multicored coaxial branch cable according to claim 7 is characterized in that: described leader cable outer layer insulation sheath (3) and branch cable outer layer insulation sheath (5) are outside seals injection mo(u)lding by described overall outer layer insulation sheath (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202019986U CN201698788U (en) | 2009-12-10 | 2009-12-10 | Prefabricated multi-core coaxial branch cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202019986U CN201698788U (en) | 2009-12-10 | 2009-12-10 | Prefabricated multi-core coaxial branch cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201698788U true CN201698788U (en) | 2011-01-05 |
Family
ID=43400035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202019986U Expired - Fee Related CN201698788U (en) | 2009-12-10 | 2009-12-10 | Prefabricated multi-core coaxial branch cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201698788U (en) |
-
2009
- 2009-12-10 CN CN2009202019986U patent/CN201698788U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20140716 Granted publication date: 20110105 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20150116 Granted publication date: 20110105 |
|
| RINS | Preservation of patent right or utility model and its discharge | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110105 Termination date: 20131210 |
|
| EXPY | Termination of patent right or utility model |