CN105895240A - High-temperature-resistant flexible mineral-insulated fireproof cable - Google Patents
High-temperature-resistant flexible mineral-insulated fireproof cable Download PDFInfo
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- CN105895240A CN105895240A CN201410854183.3A CN201410854183A CN105895240A CN 105895240 A CN105895240 A CN 105895240A CN 201410854183 A CN201410854183 A CN 201410854183A CN 105895240 A CN105895240 A CN 105895240A
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- flexible mineral
- temperature flexible
- temperature
- cable
- fire prevention
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Abstract
The invention discloses a high-temperature-resistant flexible mineral-insulated fireproof cable. The high-temperature-resistant flexible mineral-insulated fireproof cable comprises a plurality of annealed soft copper conductive core wires, an inner fireproof wrapping layer, an inner high-temperature-resistant flexible mineral-insulated layer, a middle fireproof wrapping layer, an outer high-temperature-resistant flexible mineral-insulated layer, a silica glass fiber band protection layer, a stainless steel interlocked armored layer, an outer fireproof wrapping layer and an outer sheath. The integrity performance and fireproof grade of the cable are far higher than those in fire safety requirements in GA306.1-2001 standards; and the cable is very suitable for occasions of modern oil refineries, gas stations, petroleum gas gasification stations, airport terminals, subway stations, hospitals, novel intelligent charging stations, coal mines, chemical industries, metallurgy industries, power plants and power transmission and transformation stations and the like which require highly for fire safety environment and are densely populated.
Description
Technical field
The present invention relates to a kind of mineral insulated cable, particularly relate to a kind of high-temperature flexible mineral-insulated fireproof
Cable.
Background technology
At present, home and abroad relates to mineral insulated cable product a multitude of names, but for oil plant, oiling
Stand, oil gasification station, terminal, subway station, hospital, new Intelligent charging station, colliery, chemical industry, metallurgy,
The fire-preventive environment such as power plant, power regulation station requires the highest and place of densely populated place, it is possible to match therewith
The demand of fire prevention and resistant to elevated temperatures mineral insulated cable is more and more higher.Show by relevant data, coal,
Gasoline, diesel oil etc. burning maximum temperature up to 1200 DEG C-1800 DEG C, the existing mineral insulation in current home and abroad
Cable high-temperature resistant grade can only meet the requirement of 950 DEG C；If there is fire in above-mentioned particular surroundings or place
Calamity, then the mineral insulated cable of existing standard can not meet far away fireproof requirement, there is safety greatly hidden
Suffer from, can not meet the demand carrying out rescuing of escaping in time and race against time of personnel.
Mineral insulated cable, as modern a kind of important electric power conveying products, increasingly obtains the most universal
Concern, while the market demand constantly increases, also occur in that a lot of unfavorable factor, also exist potential can
The accident special fire impact that can cause.
Existing mineral insulated cable annealed copper makees isolated insulation, annealing as conductor, filling magnesia
Copper pipe, as protection set, if desired, extrudes one layer of plastics outer jacket outside annealed copper sheath, wants as special
Ask smokeless halogen-free occasion can add one layer of low smoke and zero halogen sheath outside.Although this structure possesses certain resistance to
The function such as fiery, corrosion-resistant, but its structure or relatively simple, requiring high temperature resistant and fire prevention, wear-resisting, resistance to
Burn into is prone to lay aspect of performances such as wiring or not ideal enough.Therefore, if developing heatproof by fire grade
Novel fire resistant flexible mineral insulation fireproof cable up to 1800 DEG C, will can be greatly promoted such cable
Heatproof fire-protection rating so that it is more security and application, has filled up the blank in this technical field.
Summary of the invention
In place of above-mentioned the deficiencies in the prior art, the invention provides a kind of high-temperature flexible mineral insulation and prevent
Thermoelectricity cable, its object is to solve cable application problem of more resistance to elevated temperatures in special occasions.
To achieve these goals, the technical solution adopted in the present invention is:
A kind of high-temperature flexible mineral insulated cable, including a plurality of annealed copper conductive core line, interior fire prevention
Clad, interior high-temperature flexible mineral insulation, middle fire prevention clad, outer high-temperature flexible mineral insulation,
Silica glass fibre belt protective layer, the chain armor of stainless steel, outer fire prevention clad, oversheath.
As preferably, the center conductive heart yearn of described cable includes soft copper conductor and is coated on annealed copper conductor
Interior fire prevention clad, interior high-temperature flexible mineral insulation.Described soft copper conductor is to meet national standard
The two class multicores stranded soft copper conductors of annealing；Described interior fire prevention clad is attached most importance to and is stacked with lid around being wrapped in described annealing
Double-decker outside soft copper conductor.
As preferably, the chain armor of stainless steel in described cable is located at outer high-temperature flexible mineral insulation
And between outer fire prevention clad.The chain armor of described stainless steel have employed longitudinally pine clearance gap
The spiral protection pipe of the 306# stainless steel linkage structure of the interconnection architecture of 0.8-1.5mm, in case of fire may be used
Pressure and impact resistance and the temperature resistant grade of strengthening Integral cable can reach 2000 DEG C.
As preferably, outer high-temperature flexible mineral insulation is located at by the silica glass fibre belt protective layer in described cable
And between the described chain armor of stainless steel, completely cut off the chain armor of stainless steel and easily slided by bending
Abrasion；Described silica glass fibre belt protective layer is attached most importance to and is stacked with lid around being wrapped in outside outer high-temperature flexible mineral insulation
Double-decker.Silica glass protective layer can effectively stop flame to enter into outer high-temperature flexible mineral insulation,
And make the outer rapid porcelain tube of high-temperature flexible mineral insulation, effectively in protection, fire prevention clad is not fired by big fire
The erosion burnt, more protects the conductor wire core of described cable center not affected by fire.
As preferably, the outer high-temperature flexible mineral insulation in described cable is the protection of polymer mineral insulation
Layer, and by the overlapping outside being coated on described silica glass fibre belt protective layer around packet technology.
As preferably, the interior fire prevention clad in described cable is fluorophologopite material；Middle fire prevention clad is
Without the synthesis fluorophlogopite belt that the crystallization water, fusing point are 1800 DEG C；Outer fire prevention clad then have employed absorption type
Exotic material.
As preferably, the oversheath in described cable have employed cross-linking radiation polyolefin composite fire-proof material and makes.
Compared with prior art, what this patent was brought has the beneficial effect that
1, the art of this patent is by high temperature resistant outside being coated with one layer again in the interior fire prevention cover surface of fireproof cable
Flexible mineral insulation layer, under unexpected fire condition, interior high-temperature flexible mineral insulation and outer high temperature resistant soft
Property mineral insulation can superhigh temperature 1200-1800 DEG C fire burn in quick solidification become porcelain tube shape to protect
Set, effectively each fire prevention clad of protection cable internal layer and in intracardiac soft copper conductor do not affected by fire, really
Protect the normal work of cable safety.
2, the cable described in this patent is the stainless of 0.8-1.5mm by adding one layer of clearance gap the most loose
The chain armor of steel, it is possible to significantly improve fire-protection rating, and can ensure that the existing good bendability of Integral cable
Wiring can be facilitated again with heat radiation special efficacy and lays；It addition, the soft copper conductor of described cable core then have employed
The GB two class multicore stranded soft copper conductor of annealing, can make heterogeneous magnetic field cancellation reduce the effect of loss；
3, the cable described in this patent is by adding one layer of silica glass fibre belt protective layer, when playing isolation burning
High temperature enter into the effect of interior fire prevention clad, also prevent the chain armor pair of stainless steel of outer layer simultaneously
The external force damages such as the abrasion of outer high-temperature flexible mineral insulation, cutting；Middle fire prevention clad uses without knot
Brilliant water, fusing point are the synthesis fluorophlogopite belt of 1800 DEG C, and margin of safety is big, and resistance to elevated temperatures is best, plays
Suppress because during unexpected fire, fire spreading isolation high temperature enters the effect of internal layer flame retardant coating；Outer fire prevention clad is adopted
With cross-linking radiation composite fire-proof compound-material, there is strong change, its plasticity in its molecular structure after irradiation
Structural change becomes closely knit network structure, density and structural strength to be strengthened to some extent, to overall electricity
Cable plays comprehensive protective effect.
4, the cable described in this patent is to have passed through nearly ten thousand high temperature combustion experiments and toxicity detection experiment etc. repeatedly
A kind of preferably fireproof cable, its overall performance and the fire resistance rating that find out are marked far above GA306.1-2001
Accurate fire-fighting requirements, is highly suitable for modern refineries, gas station, oil gasification station, terminal, subway
Stand, hospital, new Intelligent charging station, colliery, chemical industry, metallurgy, power plant, the fire-preventive environment such as power regulation station
Require the highest and crowded place, be to pacify in the electric power conveying that existing inhabitation and densely populated place pooling zone are important
The necessary product of all risk insurance barrier, and raw material resources enriches, cheap, it is simple to large-scale production is with universal
Application.
Accompanying drawing explanation
Fig. 1 is the perspective view of the high-temperature flexible mineral insulated cable described in this patent；
Fig. 2 is the radial cutaway view of the high-temperature flexible mineral insulated cable described in this patent；
Fig. 3 is the perspective view of the center conductive heart yearn of cable described in this patent.
Detailed description of the invention
Below in conjunction with the accompanying drawings and this patent is described further by specific embodiment:
All features disclosed in this specification, or disclosed all methods or during step, except mutually
Beyond the feature repelled mutually and/or step, all can combine by any way.
As shown in Figure 1, Figure 2 and Figure 3, a kind of high-temperature flexible mineral insulated cable, lead including soft copper
Body 1, interior fire prevention clad 2, interior high-temperature flexible mineral insulation 3, middle fire prevention clad 4, outer resistance to height
Tenderness mineral insulation 5, silica glass fibre belt protective layer 6, the chain armor of stainless steel 7, outer fire prevention cladding
Layer 8, oversheath 9.
First it is made up of described soft copper conductor 1, interior fire prevention clad 2 and interior high-temperature flexible mineral insulation 3
The conductive core line of cable center, soft copper conductor 1 uses the Equations of The Second Kind multicore stranded soft copper of annealing of national standard to lead
Body；Interior fire prevention clad 2 is made for fluorophologopite material, and its performance can resist the high temperature erosion of 1800 DEG C,
And put up around being wrapped in aforesaid soft copper conductor 1 surface by double-deck synthesizing fireproof composite wrapping tape form overlap；
Interior high-temperature flexible mineral insulation 3 uses flexible compound mineral insulating material and fire proofing material；A plurality of conduction
Heart yearn is coated on middle fire prevention clad 4, outer high-temperature flexible mineral insulation 5 and silica glass successively after closing up
With protective layer 6, the chain armor of stainless steel 7, the absorption outer fire prevention clad 8 on stainless steel top layer, protect outward
Set 9.
Wherein, the middle fire prevention clad 4 in described cable have employed 0.8mm thick without the crystallization water, fusing point
It it is the synthesis fluorophlogopite belt of 1800 DEG C；Outer high-temperature flexible mineral insulation 5 uses polymer mineral insulation
Protective layer；Silica glass fibre belt protective layer 6 is put up around being wrapped in described outer high-temperature flexible mineral insulation through lap over
Double-decker outside Ceng；It is 0.8-1.5mm's that the chain armor of stainless steel 7 have employed longitudinally pine clearance gap
The 306# stainless steel interlock protection pipe of interconnection architecture；Outer fire prevention clad 8 have employed absorption type exotic material；
Oversheath 9 have employed cross-linking radiation composite fire compound-material.
Above-described embodiment is the preferred embodiment of the art of this patent, is not the limit to the art of this patent scheme
System, as long as the technical scheme that can realize on the basis of above-described embodiment without creative work, all
In the range of should be regarded as falling into the rights protection of this technical patent.
Claims (7)
1. a high-temperature flexible mineral insulated cable, including soft copper conductor, interior fire prevention clad, interior
High-temperature flexible mineral insulation, middle fire prevention clad, outer high-temperature flexible mineral insulation, silica glass
The chain armor of band protective layer, stainless steel, outer fire prevention clad, oversheath, it is characterised in that: described electricity
The center of cable is formed conductive core line by soft copper conductor, interior fire prevention clad and interior high-temperature flexible mineral insulation.
High-temperature flexible mineral insulated cable the most according to claim 1, it is characterised in that: institute
The soft copper conductor stated have employed the two class multicores stranded soft copper conductors of annealing meeting national standard, and interior fire prevention is coated with
Layer is made for fluorophologopite material, and is put up before being wrapped in by double-deck synthesizing fireproof composite wrapping tape form overlap
The soft copper conductive surface stated, interior high-temperature flexible mineral insulation have employed flexible compound mineral insulating material and
Fire proofing material.
High-temperature flexible mineral insulated cable the most according to claim 1, it is characterised in that: institute
The chain armor of stainless steel stated have employed the 306# of the interconnection architecture that longitudinally pine clearance gap is 0.8-1.5mm
The spiral protection pipe of stainless steel linkage structure.
High-temperature flexible mineral insulated cable the most according to claim 1, it is characterised in that: institute
The silica glass fibre belt protective layer stated is attached most importance to and is stacked with lid around the bilayer being wrapped in outside outer high-temperature flexible mineral insulation
Structure, is located between outer high-temperature flexible mineral insulation and the chain armor of stainless steel.
High-temperature flexible mineral insulated cable the most according to claim 1, it is characterised in that: institute
The outer high-temperature flexible mineral insulation stated is polymer mineral insulation protective layer, and by overlapping around packet technology
It is coated on the outside of described silica glass fibre belt protective layer.
High-temperature flexible mineral insulated cable the most according to claim 1, it is characterised in that: institute
The interior fire prevention clad stated is fluorophologopite material, and middle fire prevention clad is for being 1800 DEG C without the crystallization water, fusing point
Synthesis fluorophlogopite belt, outer fire prevention clad then have employed absorption type exotic material.
High-temperature flexible mineral insulated cable the most according to claim 1, it is characterised in that: institute
The oversheath stated is that cross-linking radiation polyolefin composite fire-proof material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410854183.3A CN105895240A (en) | 2014-12-25 | 2014-12-25 | High-temperature-resistant flexible mineral-insulated fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410854183.3A CN105895240A (en) | 2014-12-25 | 2014-12-25 | High-temperature-resistant flexible mineral-insulated fireproof cable |
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| Publication Number | Publication Date |
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| CN105895240A true CN105895240A (en) | 2016-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410854183.3A Pending CN105895240A (en) | 2014-12-25 | 2014-12-25 | High-temperature-resistant flexible mineral-insulated fireproof cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710692A (en) * | 2016-08-31 | 2017-05-24 | 江苏赛德电气有限公司 | Flexible fireproof cable |
| US10236098B1 (en) * | 2017-10-20 | 2019-03-19 | Zhejiang Zetastone Special Cable Co., Ltd. | Fireproof cable with ceramified silicone rubber insulating sheath and stainless steel interlocked armor |
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| CN201758035U (en) * | 2010-06-24 | 2011-03-09 | 四川正方高压线缆有限公司 | Mineral-insulated cable |
| CN202422789U (en) * | 2012-02-15 | 2012-09-05 | 安徽华星电缆集团有限公司 | Environment-friendly nano composite high-polymer control cable |
| CN202871387U (en) * | 2012-10-22 | 2013-04-10 | 江苏长峰电缆有限公司 | High flexibility fireproof power cable |
| CN103198892A (en) * | 2013-04-25 | 2013-07-10 | 桂林国际电线电缆有限责任公司 | Novel composite flame-retardant cable |
| WO2014081096A1 (en) * | 2012-11-21 | 2014-05-30 | Ls Cable & System Ltd. | Fire resistant cable for medium or high voltage |
| CN204288892U (en) * | 2014-12-25 | 2015-04-22 | 广东南缆电缆有限公司 | A kind of high-temperature flexible mineral insulated cable |
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2014
- 2014-12-25 CN CN201410854183.3A patent/CN105895240A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201758035U (en) * | 2010-06-24 | 2011-03-09 | 四川正方高压线缆有限公司 | Mineral-insulated cable |
| CN202422789U (en) * | 2012-02-15 | 2012-09-05 | 安徽华星电缆集团有限公司 | Environment-friendly nano composite high-polymer control cable |
| CN202871387U (en) * | 2012-10-22 | 2013-04-10 | 江苏长峰电缆有限公司 | High flexibility fireproof power cable |
| WO2014081096A1 (en) * | 2012-11-21 | 2014-05-30 | Ls Cable & System Ltd. | Fire resistant cable for medium or high voltage |
| CN103198892A (en) * | 2013-04-25 | 2013-07-10 | 桂林国际电线电缆有限责任公司 | Novel composite flame-retardant cable |
| CN204288892U (en) * | 2014-12-25 | 2015-04-22 | 广东南缆电缆有限公司 | A kind of high-temperature flexible mineral insulated cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106710692A (en) * | 2016-08-31 | 2017-05-24 | 江苏赛德电气有限公司 | Flexible fireproof cable |
| US10236098B1 (en) * | 2017-10-20 | 2019-03-19 | Zhejiang Zetastone Special Cable Co., Ltd. | Fireproof cable with ceramified silicone rubber insulating sheath and stainless steel interlocked armor |
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Application publication date: 20160824 |