CN105741936A - Fireproof cable - Google Patents
Fireproof cable Download PDFInfo
- Publication number
- CN105741936A CN105741936A CN201610172066.8A CN201610172066A CN105741936A CN 105741936 A CN105741936 A CN 105741936A CN 201610172066 A CN201610172066 A CN 201610172066A CN 105741936 A CN105741936 A CN 105741936A
- Authority
- CN
- China
- Prior art keywords
- fire
- layer
- fireproof cable
- cable
- wall
- 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
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000010425 asbestos Substances 0.000 claims abstract description 10
- 229910052895 riebeckite Inorganic materials 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000741 silica gel Substances 0.000 claims abstract description 8
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 8
- 230000004888 barrier function Effects 0.000 claims description 43
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 20
- 229910052760 oxygen Inorganic materials 0.000 claims description 20
- 239000001301 oxygen Substances 0.000 claims description 20
- 230000009970 fire resistant effect Effects 0.000 claims description 17
- DXFMNLVBRPNOLH-UHFFFAOYSA-N magnesium;oxygen(2-);dihydrate Chemical compound O.O.[O-2].[Mg+2] DXFMNLVBRPNOLH-UHFFFAOYSA-N 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 abstract 2
- 238000005452 bending Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 239000003063 flame retardant Substances 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 229910052736 halogen Inorganic materials 0.000 description 4
- 150000002367 halogens Chemical class 0.000 description 4
- 230000007480 spreading Effects 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 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 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 241000283984 Rodentia Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention discloses a fireproof cable. The fireproof cable comprises copper cores, wherein the outer wall of each copper core is coated with a heat-resisting silica gel layer, an asbestos layer and an insulating layer from inside to outside in sequence; an armoured layer is arranged on the outer walls of the insulating layers in a coiling manner; fireproof mud is filled in the space between the insulating layers and the armoured layer; an oxygen-insulating layer is glued on the outer wall of the armoured layer; a protective sleeve is arranged on the outer wall of the oxygen-insulating layer; and an asbestos wire gauze is also arranged between the oxygen-insulating layer and the protective sleeve. Compared with the existing fireproof cable, the fireproof cable provided by the invention has relatively high fireproof performance and plastic property, so that the fireproof cable is applicable to certain important circuit systems; when the external of the cable is ignited, the oxygen-insulating layer in the interior of the cable can prevent the fire from further expanding, so that the interiors of the important circuit systems can be prevented from being short circuited within a short time, and higher economic loss can be avoided; and meanwhile, the fireproof cable has a relatively long service life and a relatively high bending resistance.
Description
Technical field
The present invention relates to power cable field, be specially a kind of fire-resistant fireproof cable.
Background technology
Wires and cables industry is the second largest industry that China is only second to automobile industry, product variety Service Efficiency and domestic market occupation rate are all more than 90%, China is as one of most important cable products development & production base in the world, possess at present flame-retardant, high temperature resistant anti-low temperature, low inductance low noise, environmental protection, low smoke and zero halogen, antitermite protection against rodents, a series of cable products with special performance and special construction such as waterproof and dampproof, and all defined certain productivity.Along with society is to improving constantly that security protection guarantee and security of system require, by government, industry, enterprise extensively publicity, promote and cooperate, the special cables product possessing high-performance and highly effective and safe as western developed country, will be used widely in all trades and professions system.
At present, fire-resisting cable is widely used in important department and the public places such as skyscraper, subway, power plant, nuclear power station, hospital, airport lamp, when a fire, fire-resisting cable ensure that communication, power circuit unimpeded, rescue for life, property tries to gain time precious to one, and makes significant contribution for reducing casualties and property loss.
In recent years, in the power system fire incident in global range, cause that owing to power cable catches fire the ratio that power system power supply interrupts is on the rise.Therefore the place of a large amount of electrical equipment and a large amount of cable of intensive laying is had to adopt fireproof cable to reduce the incidence rate of power system fire incident in power plant, transformer station etc., thus ensureing the uninterrupted power supply in important loop, the fire resistance property of traditional fireproof cable is limited, when ambient temperature is significantly high, cable still can be ignited, once be ignited, burning cannot be limited in subrange by traditional fireproof cable, cause that the intensity of a fire spreads, and then burn a lot of power equipment, cause great economic loss.
Summary of the invention
It is an object of the invention to provide a kind of fire-resistant fireproof cable, with the problem solving to propose in above-mentioned background technology.
For achieving the above object; the present invention provides following technical scheme: a kind of fire-resistant fireproof cable; including copper core; the outer wall of described copper core is coated with heat-proof silica gel layer, asbestos layer and insulating barrier from inside to outside successively; the outer wall of described insulating barrier is wound with armor, is filled with fire-proof mud between described insulating barrier and armor, and the outer wall of described armor is bonded with oxygen barrier layer; the outer wall of described oxygen barrier layer is provided with protection set, is additionally provided with asbestos gauge between described oxygen barrier layer and protection set.
Preferably, described copper core is formed by stranded no less than two copper cash.
Preferably, described insulating barrier is crosslinked polyetylene insulated layer.
Preferably, described armor is the steel band being wrapped in insulating barrier outer wall twist.
Preferably, described oxygen barrier layer magnesium oxide oxygen barrier layer.
Preferably, described oxygen barrier layer magnesium oxide oxygen barrier layer.
Preferably, described protection set is spiral type rubber hose protection sleeve, and its surface scribbles colour-wash.
nullCompared with prior art，The invention has the beneficial effects as follows: this fire-resistant fireproof cable，The outer wall in copper core is adopted to be coated with the structure of heat-proof silica gel layer，Cable is in the process used，Copper core can be generated heat，Heat-proof silica gel layer has good insulating properties and heat resistance and good plasticity，Cable life-time service can be avoided to cause that insulating properties reduce and cause security incident，The outer wall of insulating barrier is wound with armor，To increase the mechanical strength of cable，Improve erosion prevention，The service life of cable can also be extended simultaneously，The outer wall of armor is bonded with magnesium oxide oxygen barrier layer，When the outer layer of cable is ignited，Magnesium oxide oxygen barrier layer is not melted, by thermosetting, the duricrust not fired，Play cooling and the effect of isolation，Fire spreading is avoided to cause bigger economic loss，Fire-proof mud it is filled with between insulating barrier and armor，Fire-proof mud plays fire-retardant and oxygen barrier effect，Avoid fire spreading，The outer wall of oxygen barrier layer is provided with spiral type rubber hose protection sleeve，Spiral type rubber hose protection sleeve has good aging resistance、Erosion-resisting performance，After being ignited, discharge substantial amounts of non-flammable gases simultaneously，Can stop the intensity of a fire continue spread，Play fire-retardant effect，This fire-resistant fireproof cable contrasts existing fire-resistant fireproof cable and has good fire resistance and good plasticity，Suitable in the Circuits System that some are important，When Exterior cable is ignited，The oxygen barrier layer of the inside of cable can effectively stop further spreading of the intensity of a fire，Ensure that at short notice will not open circuit in important Circuits System，Avoid causing bigger economic loss.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
In figure: 1 copper core, 2 heat-proof silica gel layers, 3 asbestos layers, 4 insulating barriers, 5 fire-proof mud, 6 armors, 7 oxygen barrier layers, 8 protection sets, 9 asbestos gauges.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
nullRefer to Fig. 1，The present invention provides a kind of technical scheme: a kind of fire-resistant fireproof cable，Including copper core 1，The outer wall of copper core 1 is coated with heat-proof silica gel layer 2 from inside to outside successively、Asbestos layer 3 and insulating barrier 4，Copper core 1 is formed by stranded no less than two copper cash，Improve the tensile strength of this fire-resistant fireproof cable and overall crooking ability，Heat-proof silica gel layer 2 has good insulating properties and heat resistance and good plasticity，Cable life-time service can be avoided to cause that insulating properties reduce and cause security incident，Insulating barrier 4 is crosslinked polyetylene insulated layer，Polyethylene layer has good flame-retarding characteristic and will not discharge halogen acid gas when cable fire，And traditional insulant discharges substantial amounts of halogen acid gas when burning，The electric equipment of surrounding is corrosive harm by halogen acid gas，The outer wall of insulating barrier 4 is wound with armor 6，Armor 6 is the steel band being wrapped in insulating barrier 4 outer wall twist，There is certain fire retardancy，Increase the mechanical strength of cable simultaneously，Improve erosion prevention，Extend the service life of cable，Fire-proof mud 5 it is filled with between insulating barrier 4 and armor 6，Fire-proof mud 5 plays fire-retardant and oxygen barrier effect，Improve the fire-resistant fire protecting performance of this fire-resistant fireproof cable，The outer wall of armor 6 is bonded with oxygen barrier layer 7，Oxygen barrier layer 7 magnesium oxide oxygen barrier layer，When the outer layer of cable is ignited，Magnesium oxide oxygen barrier layer is not melted, by thermosetting, the duricrust not fired，Play cooling and the effect of isolation，Fire spreading is avoided to cause bigger economic loss，The outer wall of oxygen barrier layer 7 is provided with protection set 8，Protection set 8 is spiral type rubber hose protection sleeve，Spiral type rubber hose protection sleeve has good aging resistance、Erosion-resisting performance，After being ignited, discharge substantial amounts of non-flammable gases simultaneously，Can stop the intensity of a fire continue spread，Play fire-retardant effect，Spiral type rubber hose protection sleeve surface scribbles colour-wash，Installation personnel is conducive to distinguish various sizes of cable，Avoid mistake installation，It is additionally provided with asbestos gauge 9 between oxygen barrier layer 7 and protection set 8.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, being appreciated that and these embodiments can be carried out multiple change, amendment, replacement and modification without departing from the principles and spirit of the present invention, the scope of the present invention be defined by the appended.
Claims (6)
1. a fire-resistant fireproof cable, including copper core (1), it is characterized in that: the outer wall of described copper core (1) is coated with heat-proof silica gel layer (2) from inside to outside successively, asbestos layer (3) and insulating barrier (4), the outer wall of described insulating barrier (4) is wound with armor (6), fire-proof mud (5) it is filled with between described insulating barrier (4) and armor (6), the outer wall of described armor (6) is bonded with oxygen barrier layer (7), the outer wall of described oxygen barrier layer (7) is provided with protection set (8), it is additionally provided with asbestos gauge (9) between described oxygen barrier layer (7) and protection set (8).
2. the fire-resistant fireproof cable of one according to claim 1, it is characterised in that: described copper core (1) is formed by stranded no less than two copper cash.
3. the fire-resistant fireproof cable of one according to claim 1, it is characterised in that: described insulating barrier (4) is crosslinked polyetylene insulated layer.
4. the fire-resistant fireproof cable of one according to claim 1, it is characterised in that: described armor (6) is the steel band being wrapped in insulating barrier (4) outer wall twist.
5. the fire-resistant fireproof cable of one according to claim 1, it is characterised in that: described oxygen barrier layer (7) magnesium oxide oxygen barrier layer.
6. the fire-resistant fireproof cable of one according to claim 1, it is characterised in that: described protection set (8) is spiral type rubber hose protection sleeve, and its surface scribbles colour-wash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610172066.8A CN105741936A (en) | 2016-03-24 | 2016-03-24 | Fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610172066.8A CN105741936A (en) | 2016-03-24 | 2016-03-24 | Fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105741936A true CN105741936A (en) | 2016-07-06 |
Family
ID=56251931
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610172066.8A Pending CN105741936A (en) | 2016-03-24 | 2016-03-24 | Fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105741936A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057344A (en) * | 2016-07-28 | 2016-10-26 | 江苏长峰电缆有限公司 | Impact-resistant spray-resistant, halogen-free, low-smoke flame-retardant medium voltage fire-resistant cable |
| CN107945975A (en) * | 2017-12-31 | 2018-04-20 | 无锡江南电缆有限公司 | Mineral fireproof cable is used in a kind of unmanned helicopter gondola connection |
| CN109411118A (en) * | 2018-11-28 | 2019-03-01 | 人民电缆集团有限公司 | Ships waterproof heat resistant signal control line structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201036061Y (en) * | 2007-04-29 | 2008-03-12 | 宁波东方集团有限公司 | A low-smoke halogen-free medium voltage fire-resistant cable |
| US20090081435A1 (en) * | 2007-09-25 | 2009-03-26 | Samuel Gottfried | Fire, heat and high voltage cable protection wrap |
| CN102394121A (en) * | 2011-10-25 | 2012-03-28 | 四川鑫电电缆有限公司 | Medium-voltage fire-resistant cable |
| CN103106966A (en) * | 2013-03-04 | 2013-05-15 | 无锡市沪安电线电缆有限公司 | Soft high-fire-resistance cable |
| CN104425070A (en) * | 2013-09-02 | 2015-03-18 | 无锡市逸翔线缆有限公司 | Halogen-free low-smoke flame-retardant cable |
| CN104575820A (en) * | 2013-10-18 | 2015-04-29 | 宁夏海洋线缆有限公司 | Novel fire-resistant power cable with polyvinyl chloride insulating sheath |
-
2016
- 2016-03-24 CN CN201610172066.8A patent/CN105741936A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201036061Y (en) * | 2007-04-29 | 2008-03-12 | 宁波东方集团有限公司 | A low-smoke halogen-free medium voltage fire-resistant cable |
| US20090081435A1 (en) * | 2007-09-25 | 2009-03-26 | Samuel Gottfried | Fire, heat and high voltage cable protection wrap |
| CN102394121A (en) * | 2011-10-25 | 2012-03-28 | 四川鑫电电缆有限公司 | Medium-voltage fire-resistant cable |
| CN103106966A (en) * | 2013-03-04 | 2013-05-15 | 无锡市沪安电线电缆有限公司 | Soft high-fire-resistance cable |
| CN104425070A (en) * | 2013-09-02 | 2015-03-18 | 无锡市逸翔线缆有限公司 | Halogen-free low-smoke flame-retardant cable |
| CN104575820A (en) * | 2013-10-18 | 2015-04-29 | 宁夏海洋线缆有限公司 | Novel fire-resistant power cable with polyvinyl chloride insulating sheath |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057344A (en) * | 2016-07-28 | 2016-10-26 | 江苏长峰电缆有限公司 | Impact-resistant spray-resistant, halogen-free, low-smoke flame-retardant medium voltage fire-resistant cable |
| CN107945975A (en) * | 2017-12-31 | 2018-04-20 | 无锡江南电缆有限公司 | Mineral fireproof cable is used in a kind of unmanned helicopter gondola connection |
| CN109411118A (en) * | 2018-11-28 | 2019-03-01 | 人民电缆集团有限公司 | Ships waterproof heat resistant signal control line structure |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160706 |