CN103021545A - Fireproof multi-core branch cable - Google Patents
Fireproof multi-core branch cable Download PDFInfo
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- CN103021545A CN103021545A CN2012105448674A CN201210544867A CN103021545A CN 103021545 A CN103021545 A CN 103021545A CN 2012105448674 A CN2012105448674 A CN 2012105448674A CN 201210544867 A CN201210544867 A CN 201210544867A CN 103021545 A CN103021545 A CN 103021545A
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Abstract
The invention discloses a fireproof multi-core branch cable which comprises a multi-core main cable and multi-core branch cables. The multi-core main cable is connected with the multi-core branch cables through branch joints, each wire core comprises a conductor and an insulating layer extruded outside the conductor, a plurality of wire cores are stranded with a filling layer and then lapped with an insulating tape to form a cable core, and the outside of the cable core is longitudinally covered with a sheath layer, so that the multi-core main cable and the multi-core branch cables are formed. Connectors for connecting the multi-core main cable conductor together with the multi-core branch cable conductors in a one-to-one correspondence manner are arranged in the branch joints and are lapped with the insulating tape in a closed manner after crimping, an insulating sleeve is jointly molded outside all the connectors, and a fastened and closed metal cover is welded outside the insulating sleeve and is connected, fastened and closed with the multi-core main cable and the multi-core branch cables. The fireproof multi-core branch cable has the advantages of stable structure, reliable insulating property, excellent fire resistance, fine safety and reliability and the like.
Description
Technical field
The present invention relates to a kind of power cable, specifically a kind of fire-type multi-core branch cable.
Background technology
Along with taking place frequently of fire incident, people constantly deepen electric wire fire risk understanding, and relevant department is also more and more higher to the requirement of the performances such as electric wire fire protection flame retarding.Because having the characteristics such as spread fast, the difficulty of putting out a fire to save life and property, produce secondary harm, recovery time is long, cable fire can bring huge loss to national economy and the people's lives and properties.Therefore people have proposed harsher service conditions to fire performance, the security reliability of electric wire.Such as fire prevention, explosion-proof, overload capacity is strong, long service life, under Fire Conditions, Fire lift, fire pump need keep the normal operation in the certain hour, cable is the low-smoke low-halogen low toxicity after burning, even the specific (special) requirements such as smokeless halogen-free is nontoxic.The cable fire-proof measure is to reduce the important means that ignition of cable prolongs combustion, crucial relying mainly on prevention, and all kinds of fire-resisting cables, fireproof cable are used widely.
Branch cable has obtained widely propagation and employment because have the advantages such as power supply safety is reliable, use cost is low, installation is simple, environmental requirement is low, non-maintaining.Because branch cable is widely used in the distribution systems such as dwelling house, office tower, tunnel, hotel, hospital, market, with backbone illuminator such as street lamp power supply, road lamp power supply, highway, bridge, tunnel and the airfield runway etc. of branch line requirement are arranged, so branch cable often also there is fire-resistant even fireproof demand.
Existing fireproof cable is to adopt the copper of high conductivity to make conductor, inorganic matter magnesium oxide insulate, seamless copper pipe is made sheath, and its manufacturing process of this cable falls behind complicated, and conductor adopts real core copper bar, sheath is drawing copper tubes, therefore, cable is rigidity, and flexibility is poor, be difficult to bending, process, lay difficulty larger.Because oversheath adopts drawing copper tubes to form, and limited by plant area, drum length of cable is limited, need increase transition joint during use, contact resistance increases, and has reduced the efficient of transmission of electricity, increase power transmission failure hidden danger point, be difficult to meet related specifications requirements such as " Code for design of cables of electric works ".The magnesium oxide mineral insulated cable is processed external diameter and is limited, and is difficult to adopt multicore cable, more is difficult to use in multi-core branch cable.
Summary of the invention
Technical problem to be solved by this invention provides a kind of Stability Analysis of Structures, and insulation property are reliable, and fire protecting performance is excellent, safe and reliable fire-type multi-core branch cable.
A kind of fire-type multi-core branch cable of the present invention, comprise: multicore leader cable, multicore branch cable, the multicore leader cable is connected with the multicore branch cable by branch joint, its multicore leader cable and multicore branch cable are by conductor and be extruded in core that the outer insulating barrier of conductor forms, many cores and packed layer and carry out stranded, the lapped insulation band forms cable core again, and vertical jacket layer forms outside cable core; Be provided with in the branch joint connect one to one together jointing of multicore leader cable conductor and multicore branch cable conductor, described jointing crimping rear enclosed lapped insulation band, injection moulding insulating case together outside all jointings, be connected to the metal case that fastens sealing in the insulating case outside weld, metal case and multicore leader cable are connected restrictive coating and are connected and fasten sealing with the multicore branch cable.
Described multicore leader cable, multi-core branch cable adopt that strand copper wire is stranded to be formed.
Described multicore leader cable, multi-core branch cable adopt copper strips vertical bag argon arc welding and embossing.
Described metal case adopts the wrapped argon arc welding of copper strips.
Beneficial effect of the present invention is:
The present invention adopts multicore to connect multicore structure, has satisfied the requirement of Multi-core branched fireproof.The construction of cable is stable, and insulation property are reliable, and fire resistance is excellent, and is safe and reliable good.Insulation adopts ceramic silicon rubber to extrude structure, compares with the rigid inorganic thing magnesium oxide of compacting to have stronger flexibility.Sheath material has been selected copper pipe or copper strips, and carries out continuous embossing, has further improved the pliability of cable.Conductor is stranded, insulation extrudes, the sheath argon arc welding is vertical wraps and embossing, all belongs to mechanization and produces continuously, can make length according to customer requirements, is fit to the processing characteristic of branch cable.The flexibility of cable is good, and the finished product main cable can become dish to pack, transport more convenient with branch cable.
Description of drawings
Fig. 1 structural representation of the present invention.
Embodiment
As shown in Figure 1, a kind of fire-type multi-core branch cable of the present invention, comprise: multicore leader cable 1, multicore branch cable 2, multicore leader cable 1 is connected with multicore branch cable 2 by branch joint 3, its multicore leader cable 1 and multicore branch cable 2 are by conductor 4 and be extruded in core that conductor 4 outer insulating barriers 5 form, many cores and packed layer and carry out stranded, wrapped the first insulating tape 6 forms cable core again, and vertical jacket layer 7 forms outside cable core; Be provided with in the branch joint 3 connect one to one together jointing 8 of multicore leader cable conductor and multicore branch cable conductor, wrapped the second insulating tape 9 of described jointing 8 crimping rear encloseds, injection moulding insulating case 10 together outside all jointings 8, be connected to the metal case 11 that fastens sealing in insulating case 10 outside welds, metal case 11 and multicore leader cable 1 are connected restrictive coating 6 and are connected and fasten sealing with the multicore branch cable.
Conductor described above 4 adopts that strand copper wire is stranded to be formed; Described multicore leader cable 1, multi-core branch cable 2 adopt copper strips vertical bag argon arc welding and embossing; Described metal case 11 adopts the wrapped argon arc welding of copper strips.
The above only is preferred implementation of the present invention, and concrete application approach is a lot, should be understood that; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvement, these improvement also should be considered as protection scope of the present invention.
Claims (4)
1. fire-type multi-core branch cable comprises: multicore leader cable (1), multicore branch cable (2), and multicore leader cable (1) is connected with multicore branch cable (2) by branch joint (3); It is characterized in that: its multicore leader cable (2) and multicore branch cable are by conductor (4) and be extruded in core that the outer insulating barrier (5) of conductor (4) forms, many cores and packed layer and carry out stranded, wrapped the first insulating tape (6) forms cable core again, and vertical jacket layer (7) forms outside cable core; Be provided with in the branch joint (3) connect one to one together jointing (8) of multicore leader cable conductor and multicore branch cable conductor, wrapped the second insulating tape of described jointing (8) crimping rear enclosed (9), injection moulding insulating case (10) together outside all jointings (8), be connected to the metal case (11) that fastens sealing in insulating case (10) outside weld, metal case (11) is connected 2 with multicore leader cable (1) with the multicore branch cable) restrictive coating (7) be connected and fasten sealing.
2. fire-type multi-core branch cable according to claim 1 is characterized in that: described conductor (4) adopts that strand copper wire is stranded to be formed.
3. fire-type multi-core branch cable according to claim 1 is characterized in that: described multicore leader cable (1), multi-core branch cable (2) employing copper strips vertical bag argon arc welding and embossing.
4. fire-type multi-core branch cable according to claim 1 is characterized in that: the wrapped argon arc welding of described metal case (11) employing copper strips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105448674A CN103021545A (en) | 2012-12-17 | 2012-12-17 | Fireproof multi-core branch cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105448674A CN103021545A (en) | 2012-12-17 | 2012-12-17 | Fireproof multi-core branch cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103021545A true CN103021545A (en) | 2013-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105448674A Pending CN103021545A (en) | 2012-12-17 | 2012-12-17 | Fireproof multi-core branch cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN103021545A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247390A (en) * | 2013-04-15 | 2013-08-14 | 航天电工技术有限公司 | Compound insulation fireproof cable of pre-branch flexible mineral and manufacture method thereof |
| CN108011269A (en) * | 2017-12-26 | 2018-05-08 | 天津市炳华节能技术有限公司 | A kind of skyscraper multiple-limb M-Bus connections |
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| CN2665878Y (en) * | 2003-08-25 | 2004-12-22 | 无锡江南电缆有限公司 | Improved prefabricated branch cable |
| CN200969244Y (en) * | 2006-10-30 | 2007-10-31 | 江苏扬子江线缆有限公司 | Novel fireproof cable |
| CN201134283Y (en) * | 2007-12-27 | 2008-10-15 | 上海胜武电缆有限公司 | Inorganic mineral insulation fire preventing prefabricated branch cable |
| CN101521052A (en) * | 2009-04-20 | 2009-09-02 | 宝胜科技创新股份有限公司 | Multi-core integrated branch cable and production method thereof |
| JP2010086837A (en) * | 2008-10-01 | 2010-04-15 | Yazaki Corp | Cable with branch |
| CN203038709U (en) * | 2012-12-17 | 2013-07-03 | 无锡江南电缆有限公司 | Fireproof-type multi-core branch cable |
-
2012
- 2012-12-17 CN CN2012105448674A patent/CN103021545A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2665878Y (en) * | 2003-08-25 | 2004-12-22 | 无锡江南电缆有限公司 | Improved prefabricated branch cable |
| CN200969244Y (en) * | 2006-10-30 | 2007-10-31 | 江苏扬子江线缆有限公司 | Novel fireproof cable |
| CN201134283Y (en) * | 2007-12-27 | 2008-10-15 | 上海胜武电缆有限公司 | Inorganic mineral insulation fire preventing prefabricated branch cable |
| JP2010086837A (en) * | 2008-10-01 | 2010-04-15 | Yazaki Corp | Cable with branch |
| CN101521052A (en) * | 2009-04-20 | 2009-09-02 | 宝胜科技创新股份有限公司 | Multi-core integrated branch cable and production method thereof |
| CN203038709U (en) * | 2012-12-17 | 2013-07-03 | 无锡江南电缆有限公司 | Fireproof-type multi-core branch cable |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103247390A (en) * | 2013-04-15 | 2013-08-14 | 航天电工技术有限公司 | Compound insulation fireproof cable of pre-branch flexible mineral and manufacture method thereof |
| CN103247390B (en) * | 2013-04-15 | 2016-08-31 | 航天电工集团有限公司 | A kind of pre-branch flexible mineral compound insulation fireproof cable and preparation method thereof |
| CN108011269A (en) * | 2017-12-26 | 2018-05-08 | 天津市炳华节能技术有限公司 | A kind of skyscraper multiple-limb M-Bus connections |
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| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |