CN103000287A - Fire-resistant multicore branch cable - Google Patents
Fire-resistant multicore branch cable Download PDFInfo
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- CN103000287A CN103000287A CN2012105448937A CN201210544893A CN103000287A CN 103000287 A CN103000287 A CN 103000287A CN 2012105448937 A CN2012105448937 A CN 2012105448937A CN 201210544893 A CN201210544893 A CN 201210544893A CN 103000287 A CN103000287 A CN 103000287A
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Abstract
The invention discloses a fire-resistant multicore branch cable which comprises a multicore main cable and a multicore branch cable, wherein the multicore main cable is connected with the multicore branch cable through a branch joint. The multicore main cable and the multicore branch cable are cores composed of conductors and insulating layers wrapped outside the conductors, a plurality of cores and a packing layer are stranded, then an insulating tape is wound to form a cable core, and a sheath layer is longitudinally wrapped outside the cable core to form the fire-resistant multicore branch cable. Connecting joints for enabling the multicore main cable conductor and the multicore branch cable conductor to be in one-to-one correspondence connection are arranged in the branch joint, an insulating tape is sealingly wrapped after the branch joint undergoes press connection, and insulating sleeves are injected outside all the connecting joints. The fire-resistant multicore branch cable has the advantages of being stable in structure, reliable in insulating performance, excellent in fire-resistant performance and good in safety and reliability and the like, and is widely applied to power distribution systems of residences, high-rise office buildings, tunnels, hotels, hospitals and shopping malls and the like.
Description
Technical field
The present invention relates to a kind of power cable, specifically a kind of fire safe 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.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.
Chinese patent " CN201120065443.0 ", " CN200920085322.5 ", " CN200620152360.4 ", disclosed fire-resistant branch cables such as " CN200820230319.3 ", all be to adopt at the main cable conductor, the mode of wrapped mica tape plays fire-resistant effect on branch cable conductor and the branch's connector branch joint, the fire-resisting cable of Mica tape, the hardening of mica sintering can continue to play the effect of insulation during cable fire, thereby reach fire-resistant effect, but, no matter be synthetic mica tape, gold mica tape, white clouds master tape or other mica tapes all have following major defect: (1) mica water absorption is strong, loses efficacy easily after the suction; (2) processing method of mica tape is to utilize adhesive to paste mica powder, and is therefore harder, and in wrapped and subsequently processing and use procedure, mica powder very easily peels off, and peels off the function of namely having lost insulation as long as exist, and does not reach instructions for use; Also be difficult for simultaneously wrapped smooth, even subsides, tight, wrinkling easily, particularly small bore flexible conductor difficulty of processing is larger; (3) after meeting the fire burning, after the organic material macromolecular material is burnt mistake, can cause the cable internal structure loosening, cause the fragmentation of mica insulation layer to come off, the effect of especially all kinds of vibrations, thereby the forfeiture insulation property, can't continue to remain on the function of supplying power in the flame, so its application is subject to certain limitation.
Also there are other mineral insulation bands of use to substitute mica tape in the prior art, but no matter be which kind of fire-resistant band, wrapped band all is that employing is artificial manual wrapped on branch's connector branch joint, wrapped not tight, produce easily the bottom pour ladle phenomenon, particularly in injection moulding mold pressing materials process, and the flame retardant coating between the main cable, branch cable also produces easily and disconnects, thereby do not have insulating effect when the cable breaking out of fire.
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 resistance is excellent, safe and reliable good fire safe type multi-core branch cable.
A kind of fire safe 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 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 in the branch joint.
Beneficial effect of the present invention is:
Main improvement of the present invention is to substitute wrapped mica tape and insulating barrier with the ceramic silicone rubber insulation layer that extrudes, can not occur that mica suction was lost efficacy, peeled off, wrapped out-of-flatness, small bore flexible conductor difficulty of processing are large, shortcomings such as the insulating barrier fragmentation comes off after the burning, the problems such as the easy disconnection of wrapped other flame retardant coating out-of-flatnesses also can not occur.Stability Analysis of Structures, insulation property are reliable, and fire resistance is excellent, and is safe and reliable good.
Description of drawings
Fig. 1 structural representation of the present invention.
Embodiment
As shown in Figure 1, fire safe 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 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 in the branch joint 3.
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 (1)
1. fire safe 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, lapped insulation band (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, described jointing (8) crimping rear enclosed lapped insulation band (9), injection moulding insulating case (10) together outside all jointings (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105448937A CN103000287A (en) | 2012-12-17 | 2012-12-17 | Fire-resistant multicore branch cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105448937A CN103000287A (en) | 2012-12-17 | 2012-12-17 | Fire-resistant multicore branch cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103000287A true CN103000287A (en) | 2013-03-27 |
Family
ID=47928747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105448937A Pending CN103000287A (en) | 2012-12-17 | 2012-12-17 | Fire-resistant multicore branch cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103000287A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6210808A (en) * | 1985-07-08 | 1987-01-19 | 日立電線株式会社 | Fireproof cable with branch |
| JP2000003624A (en) * | 1998-06-16 | 2000-01-07 | Yazaki Corp | Nonhalogen fire-resistant 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 |
| CN201910285U (en) * | 2010-10-25 | 2011-07-27 | 宝胜科技创新股份有限公司 | Branch cable used in high-security place |
| CN202473363U (en) * | 2012-01-11 | 2012-10-03 | 安徽明星电缆有限公司 | Ceramic silicone rubber fireproof cable |
| CN202512948U (en) * | 2012-04-24 | 2012-10-31 | 上海安捷防火电缆有限公司 | Tension and fire resistant cable insulated by ceramic silicone rubber wrapping tapes and equipped with steel wire braiding sheath |
| CN202976972U (en) * | 2012-12-17 | 2013-06-05 | 无锡江南电缆有限公司 | Fire-resistant multi-core branch cable |
-
2012
- 2012-12-17 CN CN2012105448937A patent/CN103000287A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6210808A (en) * | 1985-07-08 | 1987-01-19 | 日立電線株式会社 | Fireproof cable with branch |
| JP2000003624A (en) * | 1998-06-16 | 2000-01-07 | Yazaki Corp | Nonhalogen fire-resistant 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 |
| CN201910285U (en) * | 2010-10-25 | 2011-07-27 | 宝胜科技创新股份有限公司 | Branch cable used in high-security place |
| CN202473363U (en) * | 2012-01-11 | 2012-10-03 | 安徽明星电缆有限公司 | Ceramic silicone rubber fireproof cable |
| CN202512948U (en) * | 2012-04-24 | 2012-10-31 | 上海安捷防火电缆有限公司 | Tension and fire resistant cable insulated by ceramic silicone rubber wrapping tapes and equipped with steel wire braiding sheath |
| CN202976972U (en) * | 2012-12-17 | 2013-06-05 | 无锡江南电缆有限公司 | Fire-resistant multi-core branch cable |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130327 |