CN106024166A - Flexible mineral insulation fireproof cable - Google Patents
Flexible mineral insulation fireproof cable Download PDFInfo
- Publication number
- CN106024166A CN106024166A CN201610640505.3A CN201610640505A CN106024166A CN 106024166 A CN106024166 A CN 106024166A CN 201610640505 A CN201610640505 A CN 201610640505A CN 106024166 A CN106024166 A CN 106024166A
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- Prior art keywords
- cable
- insulating barrier
- conductor cores
- band
- mineral insulation
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- 238000009413 insulation Methods 0.000 title claims abstract description 42
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 24
- 239000011707 mineral Substances 0.000 title claims abstract description 22
- 239000004020 conductor Substances 0.000 claims abstract description 68
- 239000003063 flame retardant Substances 0.000 claims abstract description 35
- 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 32
- 230000004888 barrier function Effects 0.000 claims description 73
- 229910052760 oxygen Inorganic materials 0.000 claims description 22
- 239000001301 oxygen Substances 0.000 claims description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 21
- 239000011248 coating agent Substances 0.000 claims description 20
- 238000000576 coating method Methods 0.000 claims description 20
- 239000003365 glass fiber Substances 0.000 claims description 19
- 238000012856 packing Methods 0.000 claims description 12
- 229920000098 polyolefin Polymers 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 11
- 230000009970 fire resistant effect Effects 0.000 claims description 10
- 239000000779 smoke Substances 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 229910052736 halogen Inorganic materials 0.000 claims description 3
- 150000002367 halogens Chemical class 0.000 claims description 3
- 241001062009 Indigofera Species 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 230000000979 retarding effect Effects 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 13
- 229910052802 copper Inorganic materials 0.000 description 13
- 239000010949 copper Substances 0.000 description 13
- 239000000919 ceramic Substances 0.000 description 8
- 238000000926 separation method Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000002679 ablation Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 239000012777 electrically insulating material Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000012779 reinforcing material Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 206010039509 Scab Diseases 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005491 wire drawing Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000784732 Lycaena phlaeas Species 0.000 description 1
- 241000699670 Mus sp. Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- RJDOZRNNYVAULJ-UHFFFAOYSA-L [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] RJDOZRNNYVAULJ-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 238000001149 thermolysis Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
- 230000037303 wrinkles Effects 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
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
-
- 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
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
-
- 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
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention provides a flexible mineral insulation fireproof cable and relates to the technical field of power cables. The cable comprises a cylindrical conductor core, an insulation layer, a wrapping band, an oxygen-isolating flame-retardant layer and an outer sheath, wherein the conductor core is sleeved with the insulation layer, the wrapping band, the oxygen-isolating flame-retardant layer and the outer sheath in sequence, the insulation layer wraps the conductor core to form a columnar cable core, and the wrapping band is in a ring shape and fixes the conductor core and the insulation layer. According to the cable, the insulation layer wraps the conductor core, the oxygen-isolating flame-retardant layer is arranged, a hard armor can be formed quickly when the cable is in fire or at high temperature, therefore, good flame retarding and fire insulating effects are achieved, and the cable is convenient to use continuously in a fire.
Description
Technical field
The present invention relates to power cable technical field, particularly relate to flexible mineral insulation fireproof cable.
Background technology
Cable, is a kind of transmission wire rod used in electric power transmitting procedure.Along with expanding economy and people's living standard
Raising, the use of electric power electrical apparatus is increasing, the power charge stake from power bus to automobile, from office computer to
Full automatic power produces equipment, and electricity application in the life and production of people is more and more universal.
In order to improve the level of security of electric wiring, increasing people begin to focus on the fire-retardant problem of cable.But,
At present after actual fire occurs, cable is easy to burn, and, can not continue after combustion to transmit electric energy.But permitted
During more important occasion breaking out of fire, the evacuation of personnel, the illumination of passage, the response of fireproof alarming equipment, automatic fire-fighting facility with
And the startup of other emergency set, the supply being required for electric energy just can normally work.
For the problems referred to above, the cable fire-proof poor performance being in the market of tracing it to its cause, it is impossible to resist the intensity of a fire for
The erosion of the construction of cable, when causing fire to occur, cable burns, then cannot regular supply electric energy.
Summary of the invention
In view of this, the purpose of the embodiment of the present invention is to provide flexible mineral insulation fireproof cable, by arranging insulation
Layer and oxygen barrier flame retardant coating etc. so that fireproofing of cable performance enhancement.
First aspect, embodiments provides flexible mineral insulation fireproof cable, including: cylindrical conductor cores with
And in the periphery of conductor cores the most sheathed insulating barrier, band, oxygen barrier flame retardant coating and oversheath；
Wherein, insulating barrier parcel conductor cores, with the pillared cable core of shape；
Band in the form of a ring, and fixed conductor core and insulating barrier.
In conjunction with first aspect, embodiments provide the first possible embodiment of first aspect, wherein, cable
Core includes multiple, hingedly connected between multiple cable cores.
In conjunction with first aspect, embodiments provide the embodiment that the second of first aspect is possible, wherein, also
Including gasket for packing, cable core is multiple, and multiple cable core parallel arranged；
Gasket for packing is filled between different cable core, and is filled between band and cable core.
In conjunction with the embodiment that the second of first aspect is possible, embodiments provide the third of first aspect
Possible embodiment, wherein, also includes glass fiber tape, and glass fiber tape is around wrapping between oxygen barrier flame retardant coating and oversheath.
In conjunction with the embodiment that the second of first aspect is possible, embodiments provide the 4th kind of first aspect
Possible embodiment, wherein, insulating barrier is refractory thermal insulator, and, the thickness of insulating barrier is more than or equal to 2.0mm.
In conjunction with the 4th kind of possible embodiment of first aspect, embodiments provide the 5th kind of first aspect
Possible embodiment, wherein, band is alkali-free glass fibre band, and, the thickness of band is 0.17mm.
In conjunction with the third possible embodiment of first aspect, embodiments provide the 6th kind of first aspect
Possible embodiment, wherein, oxygen barrier flame retardant coating is fireproof oxygen-separation body, and, the thickness of oxygen barrier flame retardant coating is more than or equal to
2.0mm。
In conjunction with the 6th kind of possible embodiment of first aspect, embodiments provide the 7th kind of first aspect
Possible embodiment, wherein, oversheath is halogen-free and low-smoke flame-retardant polyolefin sheathed material.
In conjunction with the 4th kind of possible embodiment of first aspect, embodiments provide the 8th kind of first aspect
Possible embodiment, wherein, conductor cores is one, and insulating barrier is white；
Or, conductor cores is two, and the insulating barrier of two conductor cores of parcel is respectively red and blue；
Or, conductor cores is three, and the insulating barrier of three conductor cores of parcel is respectively yellow, green and blue；
Or, conductor cores is four, and the insulating barrier of four conductor cores of parcel is respectively yellow, green, red and blue；
Or, conductor cores is five, and the insulating barrier of five conductor cores of parcel is respectively yellow, green, redness, blue and black
Color.
In conjunction with the 8th kind of possible embodiment of first aspect, embodiments provide the 9th kind of first aspect
Possible embodiment, wherein, band is wrapped in the outside of insulating barrier, and band along its winding direction Duplication more than or
Equal to 25%.
The flexible mineral insulation fireproof cable that the embodiment of the present invention provides, this equipment includes: cylindrical conductor cores and
Insulating barrier, band, oxygen barrier flame retardant coating and the oversheath the most sheathed in the periphery of conductor cores, insulating barrier parcel conductor cores, with shape
Pillared cable core, band in the form of a ring, and fixed conductor core and insulating barrier.Wrap up conductor cores by insulating barrier, and oxygen barrier is resistance to
The setting of fire bed, when breaking out of fire, cable can form rapidly hard armour body, plays the most fire-retardant, the effect of fire insulation, from
And protect the conductor cores normal power supply of inside.
For making the above-mentioned purpose of the present invention, feature and advantage to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below by embodiment required use attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, and it is right to be therefore not construed as
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to this
A little accompanying drawings obtain other relevant accompanying drawings.
Fig. 1 shows the structural framing figure of the flexible mineral insulation fireproof cable that the embodiment of the present invention provided.
Primary clustering symbol description:
1-conductor cores 2-insulating barrier
3-gasket for packing 4-band
5-oxygen barrier flame retardant coating 6-oversheath
Detailed description of the invention
Below in conjunction with accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Generally exist
Can arrange and design with various different configurations with the assembly of the embodiment of the present invention that illustrates described in accompanying drawing herein.Cause
This, be not intended to limit claimed invention to the detailed description of the embodiments of the invention provided in the accompanying drawings below
Scope, but it is merely representative of the selected embodiment of the present invention.Based on embodiments of the invention, those skilled in the art are not doing
The every other embodiment obtained on the premise of going out creative work, broadly falls into the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertically ",
Orientation or the position relationship of the instruction such as " level ", " interior ", " outward " they are based on orientation shown in the drawings or position relationship, merely to
Be easy to describe the present invention simplify describe rather than instruction or the hint equipment of indication or assembly must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicate or hint relative importance.Wherein, term " primary importance " and
" second position " is two different positions.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be fixing connection, it is also possible to be to removably connect, or be integrally connected；Can
To be mechanical connection, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two component internal.For the ordinary skill in the art, can understand that above-mentioned term is at this with concrete condition
Concrete meaning in invention.
For improving the level of security of electric wiring, the fire-retardant problem of cable increasingly causes the concern of people.But, at present
On market, the cable of flame retardant series is only capable of making burning be confined in certain limit, and actually occurring fire when, cable also can
Quickly burn, and energising can not be continued.Such as, the BTTZ cable on market, use electrician's red copper bar as core, with
Seamless copper pipe, as sheath, processes as insulant with inorganic mineral magnesia powder.But this kind of product quality is hard,
Bending property is poor, it is impossible to sabot, can only lopping transport, constructional difficulties.In use, once there is breakage in seamless copper pipe,
Particularly running into the condition of high temperature, the insulating properties of cable can decline rapidly.Secondly as inorganic mineral magnesia powder is easy
The moisture absorption, the humidity resistance of cable is poor, needs to coat in the joint of cable fluid sealant, so, not only increases use cost, and
And, along with increasing of joint, the water-proofing treatment of joint is the most highly difficult.
The mineral insulated cable of another common YTTW model, its insulating barrier uses synthetic mica tape, outer protective sleeve
Use wrinkle copper sheath, and increase low smoke and zero halogen protection layer material and shield, although this cable solves BTTZ cable
Quality is hard, the problem being difficult to install, but this fireproof cable is owing to being that copper sheath embossing is indulged bag and is welded, at actual motion
Middle copper sheath weld is easy to crack, easily causes the short circuit of cable run.
Also having a kind of on market is the cable using fire-resistant wrapping tape and plastic insulation to combine, and this cable is owing to have employed
Plastic insulation, it uses temperature grade to be restricted, and organic insulation easily burns, and can give off heat, lead during burning
Cause temperature increases, and in turn results in fire-resistant wrapping tape carbonization, so the fire-fighting to cable is wanted when this cable can not meet fire generation
Ask.
To sum up, cable fire-proof performance in the market is the most poor, owing to power-off after fire burns met by cable, therefore is promptly rescuing
Fire protection alarm device, automatic fire-fighting facility and other emergency sets etc. conventional during helping, all because cannot normal power-up
And can not use, make troubles to fire rescue work.
As it is shown in figure 1, the invention provides a kind of flexible mineral insulation fireproof cable, including: cylindrical conductor cores 1 with
And in the periphery of conductor cores 1 the most sheathed insulating barrier 2, band 4, oxygen barrier flame retardant coating 5 and oversheath 6, wherein, insulating barrier 2 wraps
Wrap up in conductor cores 1, with the pillared cable core of shape, band 4 in the form of a ring, and fixed conductor core 1 and insulating barrier 2.
Concrete, conductor cores 1 uses the annealed copper conductor meeting the 2nd kind of GB/T3956-2008 not metal cladding.Cable
After processing, all there is hardening phenomenon in various degree, its tensile strength and yield strength substantially increase, and plasticity and toughness are also
Generally reduce.Making annealing treatment through high temperature (such as, 550 DEG C) in process of production, the wire of copper conductor becomes soft flexible,
It is difficult to be pulled off.Further, compared with common copper conductor, the resistivity of this kind of conductor cores 1 reduces, and further reduces cable
Line loss.
Insulating barrier 2 uses ceramic halogen-free and low-smoke flame-retardant polyolefin, and, the thickness of insulating barrier 2 is more than or equal to 2.0mm.
The temperature resistant grade of ceramic halogen-free and low-smoke flame-retardant polyolefin is between-40 DEG C～90 DEG C, and so, insulating barrier 2 can bear temperature round the clock
The change of difference, also is able to use in the summer of heat and the winter of severe cold simultaneously, and insulating barrier 2 will not be in too high or too low temperature
Under degree aging, damaged, thus, being wrapped in the conductor cores 1 within insulating barrier 2 will not be exposed because of the breakage of insulating barrier 2, occur
The problem of electric leakage.
It addition, use ceramic halogen-free and low-smoke flame-retardant polyolefin as insulation system, under flame or high-temperature condition, make pottery
Porcelain halogen-free and low-smoke flame-retardant polyolefin can be converted into the SiO2 pottery armour body of inorganic insulation, the armour body crooked breaking strength after ablation
Up to about 5-6MPa, the highest temperature 2700 DEG C that is resistant to, and then at high temperature play the most fire-retardant, fire-resistant, fire prevention, fire insulation,
Water proof and the effect of antidetonation, when being guaranteed in breaking out of fire, cable run can keep the most unimpeded.
In the present invention, after above-mentioned insulating barrier 2 coating conductor core 1 forms cable core, the band 4 of needs annular is by conductor
Core 1 and insulating barrier 2 are fixed, and band 4 is alkali-free glass fibre band, and, the thickness of band 4 is 0.17mm.
Glass fibre is the Inorganic Non-metallic Materials of a kind of excellent performance, is mainly composed of silicon dioxide, aluminium oxide, oxidation
Calcium etc..It is formed through high temperature melting, wire drawing, doff, the technique such as weave cotton cloth with glass bead or discarded glass for raw material.Glass fibers
The diameter of dimension monofilament is from several microns to twenties meters microns, and every bundle fiber precursor has hundreds of the most thousands of monofilament groups
Becoming, usually used as the reinforcing material in composite, electrically insulating material and heat-insulating material etc., it is specifically divided into following three
Kind:
Alkali-free glass fibre chemical stability, electrical insulation capability are strong, intensity is high, are mainly used as electrically insulating material, fiberglass
Reinforcing material etc..
In middle alkali glass fiber, the content of R2O is 11.9%-16.4%, because its alkalinity is high, it is impossible to make electrically insulating material, but
Its chemical stability and intensity are fair.Typically make latex cloth, woven roving base material, acid filter cloth, window screening base material etc., it is possible to oppose
Electrical property and the strictest fiberglass reinforcing material of requirement of strength.
The defect that intensity is low, water-fast and alkali resistance is poor that high alkali glass fibre self exists, this defect is to overcome
's.Make to strengthen goods, the final interests that only can damage user with it.
In flexible mineral insulation fireproof cable of the present invention, therefore employing alkali-free glass fibre is as band 4, to strengthen cable
Insulating properties.
It addition, band 4 is wrapped in the outside of insulating barrier 2, i.e. band 4 is with insulating barrier 2 as axle, in the outside of insulating barrier 2 with
Direction clockwise or counter-clockwise carries out winding from level to level, big along the Duplication of its winding direction between each layer of band 4
In or equal to 25%, so, on the one hand can guarantee that the compactness that band 4 is wound around so that it is be difficult to loose；On the other hand, it is to avoid
The band 4 caused because Duplication is excessive between each layer of band 4 is wasted, and has saved cost.
Oxygen barrier flame retardant coating 5, specially fireproof oxygen-separation body also it is arranged with in the outside of band 4, and, oxygen barrier flame retardant coating 5
Thickness is more than or equal to 2.0mm.Owing to the material of oxygen barrier flame retardant coating 5 is fireproof oxygen-separation body, in the situation running into fire or high temperature
Under, halogen-free low-voltage polyolefin becomes water and carbon dioxide volatilization, and the armour of the remaining ceramic state based on silicon dioxide is external
Shell.This armour physical ability bears bigger mechanical impact, its dielectric strength >=40KV/m, and crust speed is fast, crusts hard, closely knit,
Can accomplish vertical self-extinguishment, flame retardant rating can reach VW-1 level, in the case of having flame, nonflame at 350-1600 DEG C, does not melts,
Do not drip, do not fall off, do not result in spot fire, and, temperature is the highest, ceramic-like armour body after time the longest burning is the hardest,
Armour body crooked breaking strength after ablation can reach about 5MPa.Residue is ceramic inorganic thing, and residual volume is more than 85%.Pottery
Shape armour body can form cellular fine holes, such that it is able to play good fire insulation, heat insulation, the effect of thermal insulation during sintering
Really, gear fire, thermal insulation effect are higher than aluminum alloy sheath.Not prolonging combustion, do not drip, flue gas toxity reaches ZA1 level, i.e. white mice and sucks cigarette
After gas 30 minutes, it is not changed in three days, so human body will not be caused secondary injury.Raw material Halogen, nontoxic, tasteless, nothing
Heavy metal, more than the requirement of ROSH standard, additionally, the density of fireproof oxygen-separation body is little, price is low, is fire resistant flexible fire-resisting cable
Best solution, can substitute for the mica tape in aluminum alloy sheath fireproof cable and fire-resisting ceramic silicone rubber and pottery
The fire-resistant composite band of porcelainization uses, and technique is simple, and production efficiency is high.
Being arranged with oversheath 6 outside above-mentioned oxygen barrier flame retardant coating 5, the material of oversheath 6 is that halogen-free and low-smoke flame-retardant polyolefin protects
Jacking, sheath material meets the requirement of regulation in GB/T 12706.1.The oversheath 6 of cable is closely extruded on armor, and
It is easily peeled off and does not damage fireproof oxygen-separation layer, oversheath 6 surfacing, uniform color.
For the cable butting demand of different core numbers, during actual production and using, when cable core is multiple, many
Individual cable core parallel arranged, the most multiple insulating barriers 2 wrap up multiple conductor cores 1 respectively, to form multiple cable core, cut with scissors between multiple cable cores
Close and connect.At this moment, also including that gasket for packing 3, gasket for packing 3 are alkali-free glass fibre gasket for packing 3, gasket for packing 3 is filled in different cable core
Between, and be filled between band 4 and cable core, so that forming cylindrical shape between multiple cable core, fill cable after stranding
Having good interstitial channels between core, this passage can play good thermolysis, the heat produced when cable is properly functioning
Can be dispelled the heat by various this interstitial channels between alkali-free glass fiber dimension gasket for packing 3, run into outside biography during fire
The heat led into can also be gone out by these channel conductance, and other packing material does not possess this characteristic.
Further, according to industry standard, when conductor cores 1 is one, insulating barrier 2 is white；Conductor cores 1 is two
Time, the insulating barrier 2 of two conductor cores 1 of parcel is respectively red and blue；When conductor cores 1 is three, three conductor cores 1 of parcel
Insulating barrier 2 is respectively yellow, green and blue；When conductor cores 1 is four, the insulating barrier 2 of four conductor cores 1 of parcel is respectively Huang
Color, green, red and blue；When conductor cores 1 is five, the insulating barrier 2 of five conductor cores 1 of parcel is respectively yellow, green, red
Color, blueness and black, with easy to install and use.
Additionally, can adopt with wrapped glass fiber tape, glass fiber tape between above-mentioned oxygen barrier flame retardant coating 5 and oversheath 6
With high-temperature-resistant high type glass fibre, process through special process.Have high temperature resistant, insulation, insulation, fire protection flame retarding,
The feature such as corrosion-resistant, ageing-resistant, apply to act primarily as in cable heat insulation protection, be incubated, insulate, the effect such as anticorrosion.
Embodiment one
In production, first make the copper monofilament constituting conductor cores 1, i.e. by copper bar wire drawing, copper bar is drawn into and conforms to
The copper monofilament asked, then by conductor strand, is stranding into copper monofilament that to meet the second of regulation in GB/T3956-2008 stranded
Conductor.Then carry out the operation of insulating barrier 2 parcel, extrude ceramic LSOH anti-flaming fire-resistant polyolefin on conductor cores 1 surface,
Its thickness is not less than 2.0mm, so makes cable core.When conductor cores 1 is multiple (2 to 5), the difference of multiple conductor cores 1 is absolutely
The most stranded stranding that carries out of edge layer 2, and between insulating barrier 2, fill alkali-free glass fibre gasket for packing 3, to form cylinder
Structure, surface two-layer alkali-free glass fibre band is overlapping wrapped to be tightened.Afterwards, the interpolation of fireproof oxygen-separation layer is carried out, i.e. at bag
Surface with 4 extrudes one layer of ceramic LSOH anti-flaming fire-resistant polyolefin oxygen barrier material, and thickness is not less than 2.0mm.Finally, at pottery
The surface of porcelain LSOH anti-flaming fire-resistant polyolefin extrudes one layer of halogen-free and low-smoke flame-retardant polyolefin sheathed material, and thickness meets GB/
The regulation of T12706.1-2008, constitutes finished cable.
Carry out dispatching from the factory manufacture test by finished cable, concrete, and applying voltage is this rated voltage for cable 0.6/1kV, is subject to
Fire temperature is (830 to 870) DEG C, fire duration 120 minutes；Impact within 10 minutes, is started, every impact in 10 minutes once by fire；Examination
Test first 5 minutes of end, start water spray, every 60 seconds water sprays once, every time 5 seconds persistent period of water spray, meet above-mentioned fire-resistant inspection
Packaging put in storage.
The flexible mineral insulation fireproof cable that the present embodiment provides, having the technical effect that by arranging cylinder of this embodiment
The conductor cores 1 of shape and the insulating barrier 2 the most sheathed in the periphery of conductor cores 1, band 4, oxygen barrier flame retardant coating 5 and oversheath 6, its
In, oxygen barrier flame retardant coating 5 uses fireproof oxygen-separation body, and fireproof oxygen-separation body can sinter pottery dress armour body, this armour body under flame ablation into
Can bear bigger mechanical impact so that when fire occurs, cable also can normal power-up when flame additional mechanical is vibrated.
The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art, in the technical scope that the invention discloses, can readily occur in change or replace, should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.
Claims (10)
1. flexible mineral insulation fireproof cable, it is characterised in that, including: cylindrical conductor cores and outside described conductor cores
Enclose the most sheathed insulating barrier, band, oxygen barrier flame retardant coating and oversheath；
Wherein, described insulating barrier parcel conductor cores, with the pillared cable core of shape；
Described band in the form of a ring, and fixes described conductor cores and insulating barrier.
Flexible mineral insulation fireproof cable the most according to claim 1, it is characterised in that described cable core includes multiple, many
Hingedly connected between individual described cable core.
Flexible mineral insulation fireproof cable the most according to claim 1, it is characterised in that also include gasket for packing, described cable
Core is multiple, and multiple cable core parallel arranged；
Described gasket for packing is filled between different cable core, and is filled between described band and cable core.
Flexible mineral insulation fireproof cable the most according to claim 3, it is characterised in that also include glass fiber tape, institute
State glass fiber tape around wrapping between described oxygen barrier flame retardant coating and described oversheath.
Flexible mineral insulation fireproof cable the most according to claim 3, it is characterised in that described insulating barrier is hot-face insulation
Body, and, the thickness of described insulating barrier is more than or equal to 2.0mm.
Flexible mineral insulation fireproof cable the most according to claim 5, it is characterised in that described band is that alkali-free glass is fine
Dimension band, and, the thickness of described band is 0.17mm.
Flexible mineral insulation fireproof cable the most according to claim 4, it is characterised in that described oxygen barrier flame retardant coating is fire-resistant
Oxygen barrier body, and, the thickness of described oxygen barrier flame retardant coating is more than or equal to 2.0mm.
Flexible mineral insulation fireproof cable the most according to claim 7, it is characterised in that described oversheath is low smoke, zero halogen
Flame retardant polyolefin jacket material.
Flexible mineral insulation fireproof cable the most according to claim 5, it is characterised in that described conductor cores is one, institute
State insulating barrier for white；
Or, described conductor cores is two, and the described insulating barrier of two described conductor cores of parcel is respectively red and blue；
Or, described conductor cores is three, and the described insulating barrier of three described conductor cores of parcel is respectively yellow, green and blue；
Or, described conductor cores is four, parcel four described conductor cores described insulating barrier be respectively yellow, green, redness and
Blue；
Or, described conductor cores is five, and the described insulating barrier of five described conductor cores of parcel is respectively yellow, green, redness, indigo plant
Normal complexion black.
Flexible mineral insulation fireproof cable the most according to claim 9, it is characterised in that described band is wrapped in described
The outside of insulating barrier, and described band along the Duplication of its winding direction more than or equal to 25%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610640505.3A CN106024166A (en) | 2016-08-08 | 2016-08-08 | Flexible mineral insulation fireproof cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610640505.3A CN106024166A (en) | 2016-08-08 | 2016-08-08 | Flexible mineral insulation fireproof cable |
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| CN106024166A true CN106024166A (en) | 2016-10-12 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610640505.3A Pending CN106024166A (en) | 2016-08-08 | 2016-08-08 | Flexible mineral insulation fireproof cable |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108648868A (en) * | 2018-05-10 | 2018-10-12 | 江苏亨通线缆科技有限公司 | A kind of fiber reinforced fireproof cable |
| CN111907086A (en) * | 2020-06-10 | 2020-11-10 | 宁波葆尔新材料有限公司 | Preparation method of SMC composite material containing fireproof heat-insulation ceramic silicone rubber |
| CN112599286A (en) * | 2020-12-05 | 2021-04-02 | 广东南洋电缆股份有限公司 | Multi-core-layer inorganic mineral insulated flexible fireproof cable and preparation method thereof |
| CN112908526A (en) * | 2019-12-03 | 2021-06-04 | 广州澳通电线电缆有限公司 | Environment-friendly fireproof cable |
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| CN103646712A (en) * | 2013-12-23 | 2014-03-19 | 河南金水电缆集团有限公司 | Flame-retardant composite fireproof cable |
| CN204303425U (en) * | 2014-08-21 | 2015-04-29 | 江苏亨通电力电缆有限公司 | The super soft fire-resisting cable of a kind of modification high flame retardant |
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| JPH087668A (en) * | 1994-06-27 | 1996-01-12 | Hitachi Cable Ltd | Fireproof cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108648868A (en) * | 2018-05-10 | 2018-10-12 | 江苏亨通线缆科技有限公司 | A kind of fiber reinforced fireproof cable |
| CN108648868B (en) * | 2018-05-10 | 2020-05-08 | 江苏亨通线缆科技有限公司 | Fiber reinforced fireproof cable |
| CN112908526A (en) * | 2019-12-03 | 2021-06-04 | 广州澳通电线电缆有限公司 | Environment-friendly fireproof cable |
| CN111907086A (en) * | 2020-06-10 | 2020-11-10 | 宁波葆尔新材料有限公司 | Preparation method of SMC composite material containing fireproof heat-insulation ceramic silicone rubber |
| CN112599286A (en) * | 2020-12-05 | 2021-04-02 | 广东南洋电缆股份有限公司 | Multi-core-layer inorganic mineral insulated flexible fireproof cable and preparation method thereof |
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Application publication date: 20161012 |