CN108447595A - A kind of abnormity isolated form fire resistant cable - Google Patents
A kind of abnormity isolated form fire resistant cable Download PDFInfo
- Publication number
- CN108447595A CN108447595A CN201810269920.1A CN201810269920A CN108447595A CN 108447595 A CN108447595 A CN 108447595A CN 201810269920 A CN201810269920 A CN 201810269920A CN 108447595 A CN108447595 A CN 108447595A
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- CN
- China
- Prior art keywords
- sheath
- core
- fire resistant
- isolated form
- 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
- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 27
- 239000010410 layer Substances 0.000 claims abstract description 32
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000010445 mica Substances 0.000 claims abstract description 22
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 22
- 238000004804 winding Methods 0.000 claims abstract description 19
- 238000001354 calcination Methods 0.000 claims abstract description 13
- 239000004020 conductor Substances 0.000 claims abstract description 12
- 239000003365 glass fiber Substances 0.000 claims abstract description 4
- 239000002356 single layer Substances 0.000 claims abstract description 4
- 239000000919 ceramic Substances 0.000 claims description 10
- 229920002379 silicone rubber Polymers 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 abstract description 16
- 239000010949 copper Substances 0.000 abstract description 16
- 238000004049 embossing Methods 0.000 abstract description 7
- 230000002265 prevention Effects 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 description 6
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000000395 magnesium oxide Substances 0.000 description 4
- 229920000098 polyolefin Polymers 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 241001409955 Heterophragma Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 229920000260 silastic Polymers 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229920001596 poly (chlorostyrenes) Polymers 0.000 description 1
- 239000011214 refractory ceramic Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000004575 stone 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
- H01B7/42—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
- H01B7/421—Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
-
- 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
- H01B7/0045—Cable-harnesses
-
- 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
- H01B7/02—Disposition of insulation
- H01B7/0275—Disposition of insulation comprising one or more extruded layers of insulation
-
- 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
- H01B7/292—Protection against damage caused by extremes of temperature or by flame using material resistant to heat
Landscapes
- Insulated Conductors (AREA)
Abstract
A kind of abnormity isolated form fire resistant cable, including cable core and sheath, sheath is coated on cable core, there is setting gap between cable core and sheath, the cable core includes one or more core wires, single layer high temperature resistant calcining mica tape winding layer is arranged with outside each core wire, it is extruded with sheath outside one or more core wires, multiple longitudinal convex ridges are provided on sheath, the end of multiple longitudinal direction convex ridges is contacted with the inner wall of sheath, alkali-free glass fibre band winding layer is arranged with outside sheath, the core wire includes copper core conductor, on copper core conductor mica tape winding layer and insulating layer are calcined rotating around equipped with multilayer high temperature resistant.Temperature resistant grade higher of the present invention, the fire prevention time is longer, and embossing copper pipe sheath does not crack under high-temperature flame, and under the conditions of the impact of high pressure water and a degree of vibrations, the integrality of holding circuit is readily bent and removes cable core installation.
Description
Technical field
The invention belongs to fire resistant cable technical fields, and in particular to a kind of abnormity isolated form fire resistant electricity
Cable.
Background technology
In recent years, the important events such as oil field, oil depot, offshore oil platform lead to great chain fire because cable problem causes to burn
Calamity accident causes casualties not rarely seen with the case of heavy economic losses.Therefore, design, produce, installation, using meeting
It is required that fire resistant cable be very important.
The existing fire-retardant fireproof cable standard in China is GB/T19666-2005, it is desirable that cable passes through 950 DEG C of A classes, 1.5h
Test.Conventional mineral insulated cable standard is GB/T13033-2007, and cable uses copper conductor, magnesium oxide sand insulation, copper pipe
Sheath, temperature resistant grade is high, and service life is long.But it is limited by manufacturing process problems such as copper pipe drawing, filling magnesium oxide sand insulation, nothing
The big section production of method multicore, for maximum length only at hundred meters or so, connector is more, can not be bent, and difficult to install, cost is very high, existing
It has been rarely employed.Existing mica tape mineral insulation ripple copper sheath cable standard is GB/T34926-2017.Using copper conductor,
Mica tape insulation extrudes magnesia paste sheath, ripple copper pipe sheath, polyvinyl chloride or low-smoke halogen-free polyolefin oversheath.
Temperature resistant grade is higher, and service life is long.But because of insulating materials and structure problem, it is fixed that magnesia paste sheath is unable to rapid draing
Type coats gapless after ripple copper sheath, and thermal energy can not distribute when high-temperature flame, and ripple copper sheath is easy to be split up.Polychlorostyrene
Ethylene or low-smoke halogen-free polyolefin oversheath temperature resistant grade are low, are quickly become ashes after high-temperature flame, and when sprinkling fire holds
Easily water inlet leads to short circuit, and the higher requirement of heatproof fire-protection rating is not achieved.
High temperature resistant is calcined by repeatedly, largely testing for many years for the present situation of current fire resistant cable product
Mica tape and the organic rational combination of fire resistant ceramics silicon rubber, design a kind of special construction, there is multiple longitudinal convex ridges
Special-shaped isolated form sheath, projection portion and embossing copper pipe sheath do not have gap.The thermal energy in high temperature long-time flame combustion
Amount sinters hard ceramic-like shell by gap Quick diffusing, the release sheath of fire resistant ceramics silicon rubber heterophragma
Body, embossing copper pipe sheath do not crack, and may be implemented in the case of 1010 DEG C, 2h or more high-temperature flames, in high pressure water flushing
Under conditions of hitting or centainly shaking, holding circuit is complete, meets the requirement of higher standard.
Invention content
For the drawbacks described above and problem of existing fire resistant cable technology, the purpose of the present invention is to provide a kind of different
Shape isolated form fire resistant cable.High temperature resistant is calcined into mica tape, insulation, the best organic rational combination of sheath material,
It is designed to a kind of special construction, in high-temperature flame, there is multiple longitudinal convex ridge abnormity isolated form sheaths and embossing copper pipe
The thermal energy of sheath Assimilation and conductivity breaches existing ignition temperature grade, the fire prevention time is longer, surely by gap Quick diffusing
It is qualitative more preferable.
The technical solution adopted is that：
A kind of abnormity isolated form fire resistant cable, including cable core and sheath, sheath are coated on cable core, it is characterised in that：
There is setting gap between cable core and sheath.
The cable core includes one or more core wires, and the calcining mica tape winding of single layer high temperature resistant is arranged with outside each core wire
Layer is extruded with sheath outside one or more core wires, is provided with multiple longitudinal convex ridges on sheath, the multiple longitudinal direction convex ridge with
Sheath is once to extrude molding overall structure, and the end of multiple longitudinal direction convex ridges is contacted with the inner wall of sheath, not projection portion
There is gap with jacket inner wall, alkali-free glass fibre band winding layer is arranged with outside sheath.
The core wire includes copper core conductor, and multilayer high temperature resistant calcining mica tape winding layer is arranged on copper core conductor, more
It is extruded with insulating layer outside layer high temperature resistant calcining mica tape winding layer.
The height of multiple longitudinal convex ridges is 3mm-15mm, the not projection portion and sheath of the sheath outer wall
Gap at least 3mm-15mm, sheath not projection portion thickness be 0.8mm-3.0mm.
The number of multiple longitudinal convex ridges is preferably three, the position preferably equidistantly arrangement of multiple longitudinal direction convex ridges
On the outer wall of sheath.
The number of plies of the multilayer high temperature resistant calcining mica tape winding layer is at least 6 layers, and the insulating layer is anti-for high temperature resistant
Fiery ceramics silicon rubber.
The sheath and multiple longitudinal convex ridges are fire resistant ceramics silicon rubber.
The sheath is embossing spiral copper pipe；
On the sheath outer wall it is multiple longitudinal direction convex ridges height be 3mm-15mm, the sheath not projection portion with shield
The gap of set at least 3mm-15mm.
The number of multiple longitudinal convex ridges is preferably three, the position preferably equidistantly arrangement of multiple longitudinal direction convex ridges
On the outer wall of sheath；
The copper core conductor is 2-5 cores, sectional area 1.5mm2-95mm2；
The number of plies of the multilayer high temperature resistant calcining mica tape winding layer is at least 6 layers, and overlapping rate is not less than 30%；
The insulating layer is fire resistant ceramics silastic material, thickness 0.6mm-1.8mm；
The sheath is fire resistant ceramics silastic material, and the thickness of projection portion is not 0.8mm-3.0mm.
The advantage of the invention is that：
The present invention reaches best organic rational combination on material property.Mica tape is calcined in copper using multilayer high temperature resistant
On core conductor, high temperature resistant calcines mica tape in conductivity, pH value, fluorine content, halogen acid gas burst size, hypotoxicity, refractory temperature
On the time, better than other mica tapes.Using fire resistant ceramics silicon rubber extruded insulation, sheath, operating temperature reaches
To 200 DEG C, higher than 70 DEG C of polyvinyl chloride, 90 DEG C of low smoke and zero halogen polyolefin.In 1010 DEG C or more of high-temperature flame
Under, sinter hard ceramic-like shell into, the fire prevention time is more than 2h or more.It can bear the impact of high pressure water and a degree of shake
It is dynamic, the integrality of holding circuit.And has the characteristics that low cigarette, Halogen, nontoxic, environmentally friendly, with long service life.
The present invention can not only meet Chinese GB/T19666-2005, the test of 950 DEG C of 1.5h of A classes, Britain BS6387-
2013.950 DEG C, the test of 3h, also can be by more harsh U.S. UL2196-2006,1010 DEG C, the test of 2h or more.
The present invention is better than the construction of other forms in structure.Using special dies and technique, core wire is twisted into cable core,
The special-shaped isolated form sheath for forming multiple longitudinal convex ridges is once extruded on cable core, not projection portion and embossing copper pipe sheath
Inner wall has gap, and under 1010 DEG C or more of high-temperature flame, the thermal energy of generation passes through gap Quick diffusing, embossing copper pipe
Sheath does not crack.High temperature resistant grade is improved, the fire prevention time is extended.It is primary to extrude the heterophragma for forming multiple longitudinal convex ridges
Release sheath, may be implemented Multi-core number, big section, long rice section continuous production, be readily bent and remove cable core installation.Without poly-
Vinyl chloride or low-smoke halogen-free polyolefin oversheath, alleviate cable weight, reduce material, reduce cost.
The present invention is suitable for the inflammable and explosive high-risk regions such as oil field, oil depot, offshore drilling platform, while being also applied for stone
Change, power plant, metallurgy, subway, tunnel, airport, market, hospital, skyscraper etc. have high temperature fire prevention the occasion of strict demand.
Description of the drawings
Fig. 1 is cross section structure schematic diagram of the embodiment of the present invention.
Fig. 2 is cable core cross-section structural schematic diagram.
Specific implementation mode
Embodiment
A kind of abnormity isolated form fire resistant cable, including cable core 8 and sheath 7, sheath 7 are coated on cable core 8, special
Sign is：There is setting gap between cable core 8 and sheath 7.
The cable core 8 includes one or more core wires, and single layer high temperature resistant calcining mica tape is arranged with outside each core wire and is twined
Winding layer 4, one or more core wires are extruded with sheath 5 outside, and multiple longitudinal convex ridges 9 are provided on sheath 5, the multiple vertical
It is once to extrude molding overall structure to convex ridge 9 and sheath 5, the end of multiple longitudinal direction convex ridges 9 and the inner wall of sheath 7 connect
It touches, projection portion does not have gap with 7 inner wall of sheath, and alkali-free glass fibre band winding layer 6 is arranged with outside sheath 5.
The core wire includes copper core conductor 1, and multilayer high temperature resistant calcining mica tape winding layer 2 is arranged on copper core conductor 1,
It is extruded with insulating layer 3 outside multilayer high temperature resistant calcining mica tape winding layer 2.
The height of multiple longitudinal convex ridges 9 is 3mm-15mm, not projection portion and the shield of 5 outer wall of sheath
Set 7 gap at least 3mm-15mm, sheath 5 not projection portion thickness be 0.8mm-3.0mm.
The number of multiple longitudinal convex ridges 9 is preferably three, and the position of multiple longitudinal direction convex ridges 9 is preferably equidistantly arranged
It is listed on the outer wall of sheath 5.
The number of plies of the multilayer high temperature resistant calcining mica tape winding layer 2 is to be at least 6 layers, and the insulating layer 3 is resistance to height
Warm refractory ceramic silicon rubber.
The sheath 5 and multiple longitudinal convex ridges 9 is fire resistant ceramics silicon rubber.
Claims (7)
1. a kind of abnormity isolated form fire resistant cable, including cable core（8）And sheath（7）, sheath（7）It is coated on cable core（8）
On, it is characterised in that：Cable core（8）And sheath（7）Between have setting gap.
2. a kind of special-shaped isolated form fire resistant cable according to claim 1, it is characterised in that：The cable core
（8）Including one or more core wires, single layer high temperature resistant calcining mica tape winding layer is arranged with outside each core wire（4）, one or more
It is extruded with sheath outside a core wire（5）, sheath（5）On be provided with multiple longitudinal convex ridges（9）, the multiple longitudinal direction convex ridge（9）
With sheath（5）Once to extrude molding overall structure, multiple longitudinal direction convex ridges（9）End and sheath（7）Inner wall contact,
Not projection portion and sheath（7）Inner wall has gap, sheath（5）It is outer to be arranged with alkali-free glass fibre band winding layer（6）.
3. a kind of special-shaped isolated form fire resistant cable according to claim 1 or 2, it is characterised in that：The core
Line includes copper core conductor（1）, copper core conductor（1）On be arranged with multilayer high temperature resistant calcining mica tape winding layer（2）, multilayer high temperature resistant
Calcine mica tape winding layer（2）It is extruded with insulating layer outside（3）.
4. a kind of special-shaped isolated form fire resistant cable according to claim 2, it is characterised in that：Described is multiple vertical
To convex ridge（9）Height be 3mm-15mm, the sheath（5）The not projection portion and sheath of outer wall（7）Gap at least
3mm-15mm, sheath（5）The thickness of projection portion is not 0.8 mm -3.0mm.
5. a kind of special-shaped isolated form fire resistant cable according to claim 2, it is characterised in that：Described is multiple vertical
To convex ridge（9）Number be preferably three, it is multiple longitudinal direction convex ridges（9）Position be preferably equidistantly arranged in sheath（5）'s
On outer wall.
6. a kind of special-shaped isolated form fire resistant cable according to claim 3, it is characterised in that：The resistance to height of multilayer
Temperature calcining mica tape winding layer（2）The number of plies be at least 6 layers, the insulating layer（3）For fire resistant ceramics silicon rubber.
7. a kind of special-shaped isolated form fire resistant cable according to claim 2, it is characterised in that：The sheath
（5）With multiple longitudinal convex ridges（9）It is fire resistant ceramics silicon rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810269920.1A CN108447595A (en) | 2018-03-29 | 2018-03-29 | A kind of abnormity isolated form fire resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810269920.1A CN108447595A (en) | 2018-03-29 | 2018-03-29 | A kind of abnormity isolated form fire resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108447595A true CN108447595A (en) | 2018-08-24 |
Family
ID=63197646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810269920.1A Pending CN108447595A (en) | 2018-03-29 | 2018-03-29 | A kind of abnormity isolated form fire resistant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108447595A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030006056A1 (en) * | 2001-06-13 | 2003-01-09 | Wilemon Jerry W. | Reinforced utility cable and method for producing the same |
| CN202563940U (en) * | 2012-05-10 | 2012-11-28 | 重庆鸽牌电线电缆有限公司 | Fireproof flexible armored control cable |
| CN207038227U (en) * | 2017-06-14 | 2018-02-23 | 武汉鼎业环保工程技术有限公司 | Cable isolation sheath |
| CN208189232U (en) * | 2018-03-29 | 2018-12-04 | 辽宁科瑞德电缆有限公司 | A kind of abnormity isolated form fire resistant cable |
-
2018
- 2018-03-29 CN CN201810269920.1A patent/CN108447595A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030006056A1 (en) * | 2001-06-13 | 2003-01-09 | Wilemon Jerry W. | Reinforced utility cable and method for producing the same |
| CN202563940U (en) * | 2012-05-10 | 2012-11-28 | 重庆鸽牌电线电缆有限公司 | Fireproof flexible armored control cable |
| CN207038227U (en) * | 2017-06-14 | 2018-02-23 | 武汉鼎业环保工程技术有限公司 | Cable isolation sheath |
| CN208189232U (en) * | 2018-03-29 | 2018-12-04 | 辽宁科瑞德电缆有限公司 | A kind of abnormity isolated form fire resistant cable |
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