CN104538094A - Flexible fireproof cable - Google Patents
Flexible fireproof cable Download PDFInfo
- Publication number
- CN104538094A CN104538094A CN201510002064.XA CN201510002064A CN104538094A CN 104538094 A CN104538094 A CN 104538094A CN 201510002064 A CN201510002064 A CN 201510002064A CN 104538094 A CN104538094 A CN 104538094A
- Authority
- CN
- China
- Prior art keywords
- cable
- core
- layer
- flexible fire
- proof cable
- 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.)
- Pending
Links
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000004020 conductor Substances 0.000 claims abstract description 14
- 239000003063 flame retardant Substances 0.000 claims abstract description 14
- 239000003365 glass fiber Substances 0.000 claims abstract description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 9
- 239000000919 ceramic Substances 0.000 claims abstract description 7
- 239000011707 mineral Substances 0.000 claims abstract description 5
- 229920000098 polyolefin Polymers 0.000 claims abstract description 5
- 239000000843 powder Substances 0.000 claims abstract description 5
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 5
- 239000000779 smoke Substances 0.000 claims abstract description 5
- 230000004888 barrier function Effects 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 8
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 5
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 abstract 2
- 238000001125 extrusion Methods 0.000 abstract 1
- 230000009970 fire resistant effect Effects 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention discloses a flexible fireproof cable. The flexible fireproof cable comprises a cable core formed by stranding four wire cores, a filling layer is arranged at the center position of the four wire cores, the cable core is sequentially provided with a liner layer, a second wrapping layer and an outer protective sleeve from inside to outside, the liner layer is formed by mineral ceramic powder and silicon rubber in an extrusion mode, the second wrapping layer is a glass fiber belt, the outer protective sleeve is made of low-smoke halogen-free flame-retardant polyolefin, each wire core comprises a conductor, and each conductor is sequentially provided with a fireproof layer, an insulating layer and a first wrapping layer from inside to outside. The flexible fireproof cable has the advantages that the cable is better in performance compared with a traditional cable, the using requirement of the fireproof cable can be met better, and the cable can be widely applied to places having a high fireproof and fire-resistant level requirement.
Description
Technical field
The present invention relates to power cable, be specifically related to a kind of flexible fire-proof cable.
Background technology
Cable normally forms by several or several groups of wires (often organizing at least two) are stranded around center, the similar rope of its shape, simultaneously outer cover height insulating barrier.
Cable has power cable, control cables, compensating cable, shielded type cable, high-temperature cable, computer cable, signal cable, coaxial cable, fire-resisting cable, shipboard cable, mining cable, aluminium alloy cable etc.They are all made up of sub-thread or stranded conductor and insulating barrier, are used for connecting circuit, electrical equipment etc.
Along with people are to the enhancing of environmental protection, security against fire consciousness, the application of fireproof cable progressively expands, the occasion higher to fireproof class requirement such as Aeronautics and Astronautics, navigation, hospital, mall has been expanded to from offshore oil platform originally, fireproof cable can be in the case of fire, ensure the unimpeded of electric power and communication within a certain period of time, try to gain time precious to one to greatest extent, reduce the loss of casualties and lives and properties.
Existing fireproof cable all have employed copper sheath structure, has had a strong impact on the bending radius of cable, although have clear improvement, it also has this very large well space qualitatively in bending radius and fire prevention.
Summary of the invention
Instant invention overcomes fireproof cable in prior art and all have employed copper sheath structure, have that bending radius is limited to be waited not enough, provide a kind of flexibility good, bending radius is large, and fire-protection rating meets the flexible fire-proof cable that skyscraper etc. requires.
For achieving the above object, the present invention is by the following technical solutions:
A kind of flexible fire-proof cable, it comprises by four stranded cables core formed of core, four core centers are provided with packed layer, cable core is provided with inner covering, the second lapping layer and oversheath from the inside to the outside successively, described inner covering adopts mineral ceramic powder and silicon rubber extruding to be formed, described second lapping layer is glass fiber tape, described oversheath adopts low smoke halogen-free flame-retardant polyolefin to make, described core comprises conductor, and described conductor is provided with flame retardant coating, insulating barrier and the first lapping layer from the inside to the outside successively.
First mineral ceramic powder and silicon rubber extruding is adopted to form inner covering in the technical program, like this when running into fire, inner covering can form ceramic shell, thus stop the heat produced during flame combustion to be delivered to inner cable core, thus avoid cable core to damage, inner covering can also stop the moisture produced during fire extinguishing to the erosion of cable core simultaneously, plays buffer action.
Adopt glass fiber tape to make the second lapping layer in the technical program again, because glass fiber tape is exotic material, so when burning, the ceramic shell that the second lapping layer can prevent inner covering from being formed is broken or come off.
Adopt low smoke halogen-free flame-retardant polyolefin to make oversheath in the technical program, such oversheath can form the carbon shell of porous when burning, thus plays heat-blocking action.
Further technical scheme is, described flame retardant coating is formed by inorganic mineral insulation band is wrapped.
Further technical scheme is, described insulating barrier adopts crosslinked polyethylene to make.
Further technical scheme is, described first lapping layer is formed by glass fiber tape is wrapped.
Adopt in the technical program that inorganic mineral insulation band is wrapped makes flame retardant coating, flame retardant coating insulate under acting as hot conditions, refractory temperature can reach more than 1000 degree, can ensure to play under the high temperature conditions to ensure that the normal power-up of core is run to the insulating effect of core simultaneously.
Crosslinked polyethylene is adopted to make insulating barrier, crosslinked polyetylene insulated is utilize chemical method or physical method, cable insulation polyethylene molecule is made to change main body network molecular structure into by linearity molecular structure, namely thermoplastic polyethylene changes heat cured crosslinked polyethylene into, thus greatly improve its thermal endurance and mechanical performance, decrease its shrinkage, no longer melt after making it be heated, and maintain excellent electric property.Therefore, crosslinked polyetylene insulated have good superiority in heat-resisting, mechanical properties, thus make insulating barrier have the performance such as thermal endurance and cut resistant.
Further technical scheme is, described conductor has the some bursts of stranded formation of copper wire.
Further technical scheme is, the radius of described copper wire cross section is 0.2mm.
First some strands of cross sectional radius are adopted to be the stranded formation conductor of copper wire of 0.2mm in the technical program, because the copper wire adopted is very thin, have good pliability, this just makes cable core have good flexibility simultaneously, thus can ensure that cable core not easily produces fracture in BENDING PROCESS.
Further technical scheme is, described packed layer is glass cord.
Because glass cord forms through special process braiding, there is the main performances such as corrosion-resistant, high strength, can be used for the aspects such as insulating material such as motor, instrument, electrical equipment, so packed layer has good intensity, can ensure respectively to organize the stressed more even of core in cable distort process.
Compared with prior art, the invention has the beneficial effects as follows:
Flexible fire-proof cable of the present invention, has more superior performance than traditional cable, more can meet the instructions for use of fireproof cable, can be widely used in the place higher to fireproof class requirement.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
1 core, 11 conductors, 12 flame retardant coatings, 13 insulating barriers, 14 first lapping layers, 2 inner coverings, 3 second lapping layers, 4 oversheaths, 5 packed layers.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further elaborated.
A kind of flexible fire-proof cable as shown in Figure 1, it comprises by four stranded cables core formed of core, four core centers are provided with packed layer 5, cable core is provided with inner covering 2 from the inside to the outside successively, second lapping layer 3 and oversheath 4, described inner covering 2 adopts mineral ceramic powder and silicon rubber extruding to be formed, described second lapping layer 3 is glass fiber tape, described oversheath 4 adopts low smoke halogen-free flame-retardant polyolefin to make, described core comprises conductor 11, described conductor 11 is provided with flame retardant coating 12 from the inside to the outside successively, insulating barrier 13 and the first lapping layer 14, described flame retardant coating 12 is formed by inorganic mineral insulation band is wrapped, described insulating barrier 13 adopts crosslinked polyethylene to make, described first lapping layer 14 is formed by glass fiber tape is wrapped, described packed layer 5 is glass cord.
According to one embodiment of present invention, described conductor 11 has the some bursts of stranded formation of copper wire, and the radius of described copper wire cross section is 0.2mm.
Above embodiment is described in detail to essence of the present invention; but can not limit protection scope of the present invention; apparently; under enlightenment of the present invention; the art those of ordinary skill can also carry out many improvement and modification; it should be noted that these improve and modify all to drop within claims of the present invention.
Claims (7)
1. a flexible fire-proof cable, it is characterized in that: it comprises by four stranded cables core formed of core, four core centers are provided with packed layer (5), cable core is provided with inner covering (2) from the inside to the outside successively, second lapping layer (3) and oversheath (4), described inner covering (2) adopts mineral ceramic powder and silicon rubber extruding to be formed, described second lapping layer (3) is glass fiber tape, described oversheath (4) adopts low smoke halogen-free flame-retardant polyolefin to make, described core comprises conductor (11), described conductor (11) is provided with flame retardant coating (12) from the inside to the outside successively, insulating barrier (13) and the first lapping layer (14).
2. flexible fire-proof cable according to claim 1, is characterized in that described flame retardant coating (12) is formed by inorganic mineral insulation band is wrapped.
3. flexible fire-proof cable according to claim 1, is characterized in that described insulating barrier (13) adopts crosslinked polyethylene to make.
4. flexible fire-proof cable according to claim 1, is characterized in that described first lapping layer (14) is formed by glass fiber tape is wrapped.
5. flexible fire-proof cable according to claim 1, is characterized in that described conductor (11) has the some bursts of stranded formation of copper wire.
6. flexible fire-proof cable according to claim 5, is characterized in that the radius of described copper wire cross section is 0.2mm.
7. flexible fire-proof cable according to claim 1, is characterized in that described packed layer (5) is glass cord.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510002064.XA CN104538094A (en) | 2015-01-04 | 2015-01-04 | Flexible fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510002064.XA CN104538094A (en) | 2015-01-04 | 2015-01-04 | Flexible fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104538094A true CN104538094A (en) | 2015-04-22 |
Family
ID=52853604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510002064.XA Pending CN104538094A (en) | 2015-01-04 | 2015-01-04 | Flexible fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104538094A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107103952A (en) * | 2017-06-05 | 2017-08-29 | 三峡大学 | A kind of insulated flame-resistant cable of silicon-carbon doping and preparation method thereof |
| CN108878008A (en) * | 2018-06-22 | 2018-11-23 | 江苏东峰电缆有限公司 | A kind of mineral insulated cable |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4832685A (en) * | 1984-10-09 | 1986-04-17 | Dunlop Olympic Ltd. | Fire resisting cables |
| WO1995020227A1 (en) * | 1994-01-19 | 1995-07-27 | Huber & Suhner Ag Kabel-, Kautschuk-, Kunststoff-Werke | Fire-proof cable |
| CN201117349Y (en) * | 2007-09-28 | 2008-09-17 | 东莞市日新电线实业有限公司 | Special high temperature resistant power cable |
| CN202434231U (en) * | 2012-01-18 | 2012-09-12 | 青岛中核能线缆科技有限公司 | Ceramic fire-resistant silicon rubber insulating cable of aluminum alloy conductor |
| CN103646711A (en) * | 2013-11-29 | 2014-03-19 | 四川鑫电电缆有限公司 | Aluminum alloy fire-resistant cable |
| CN204407035U (en) * | 2015-01-04 | 2015-06-17 | 四川鑫电电缆有限公司 | Flexible fire-proof cable |
-
2015
- 2015-01-04 CN CN201510002064.XA patent/CN104538094A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU4832685A (en) * | 1984-10-09 | 1986-04-17 | Dunlop Olympic Ltd. | Fire resisting cables |
| WO1995020227A1 (en) * | 1994-01-19 | 1995-07-27 | Huber & Suhner Ag Kabel-, Kautschuk-, Kunststoff-Werke | Fire-proof cable |
| CN201117349Y (en) * | 2007-09-28 | 2008-09-17 | 东莞市日新电线实业有限公司 | Special high temperature resistant power cable |
| CN202434231U (en) * | 2012-01-18 | 2012-09-12 | 青岛中核能线缆科技有限公司 | Ceramic fire-resistant silicon rubber insulating cable of aluminum alloy conductor |
| CN103646711A (en) * | 2013-11-29 | 2014-03-19 | 四川鑫电电缆有限公司 | Aluminum alloy fire-resistant cable |
| CN204407035U (en) * | 2015-01-04 | 2015-06-17 | 四川鑫电电缆有限公司 | Flexible fire-proof cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107103952A (en) * | 2017-06-05 | 2017-08-29 | 三峡大学 | A kind of insulated flame-resistant cable of silicon-carbon doping and preparation method thereof |
| CN108878008A (en) * | 2018-06-22 | 2018-11-23 | 江苏东峰电缆有限公司 | A kind of mineral insulated cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150422 |