CN105913937A - Mineral insulated fire-resistant cable - Google Patents
Mineral insulated fire-resistant cable Download PDFInfo
- Publication number
- CN105913937A CN105913937A CN201610342513.XA CN201610342513A CN105913937A CN 105913937 A CN105913937 A CN 105913937A CN 201610342513 A CN201610342513 A CN 201610342513A CN 105913937 A CN105913937 A CN 105913937A
- Authority
- CN
- China
- Prior art keywords
- mineral
- cable
- cable core
- insulated wire
- fire
- 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
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Classifications
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- 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
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/20—Metal tubes, e.g. lead sheaths
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/02—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances
- H01B3/08—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of inorganic substances quartz; glass; glass wool; slag wool; vitreous enamels
- H01B3/084—Glass or glass wool in binder
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- 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
- H01B7/17—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
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Insulated Conductors (AREA)
Abstract
The invention discloses a mineral insulated fire-resistant cable, which comprises a cable core. The gap of the cable core is filled with an inorganic thermal-insulation fire-resistant filler; the cable core is wrapped with a high-temperature mineral wrapping belt; a flameproof and fire-resistant layer is extruded outside the high-temperature mineral wrapping belt; an inorganic mineral oxygen barrier is extruded outside the flameproof and fire-resistant layer; the inorganic mineral oxygen barrier is sleeved with a corrugated stainless steel sheath; the cable core is formed by stranding five insulated wire cores and two copper single wires, one insulated wire core is arranged in the center, as for the rest four insulated wire cores, two as a group are symmetrically arranged at the edge of the cable core with the central insulated wire core as the axial center; and the two copper single wires are symmetrically arranged inside the cable core with the central insulated wire core as the axial center. The mineral insulated fire-resistant cable has the advantages of large intercepted current amount, strong anti-over load ability, strong anti-radiation ability, rat prevention, ant prevention and the like.
Description
Technical field
The present invention relates to power cable field, refer in particular to a kind of mineral insulated cable.
Background technology
Cable is widely used in controlling installation, connection equipment, transmitting electric power, and is the indispensable important transmission medium of aspect such as industrial, civilian.Cable has plurality of specifications, model to be applicable to distinct device and the demand of transmission purpose.Cable it may happen that the problem such as short circuit or open circuit, causes the transmission of power supply and information to be broken down in use.And when breaking out of fire, cable then needs have certain fire-proof function, thus before ensureing circuit paralysis, data can effectively be preserved, reduce the risk that data run off, and guarantee that cable ensure that the safe operation of electrical equipment and circuit in transmission power process.And existing cable fire-proof performance is undesirable, when fire occurs, data potential loss risk is big, and information is the best with electric power laser propagation effect.Therefore, a kind of New Mineral matter insulated cable of exploitation is needed badly.
Summary of the invention
The technical problem to be solved there is provided one and has protection against rodents, anti-ant, radiation proof function, cable good stability, and service life is long, and temperature resistant grade is high, and combined closure system is big, and anti-overload ability is strong, the mineral insulated cable that safety is high.
A kind of mineral insulated cable of the present invention, including cable core, inorganic thermal insulation fire-proof packing is filled in the gap of cable core, at the outer wrapped high temperature mineral matter twining package tape of cable core, fire-retardant fireproof layer is extruded outside high temperature mineral matter twining package tape, outside fire-retardant fireproof layer, extrude inorganic mineral oxygen barrier layer, outside inorganic mineral oxygen barrier layer, be set with ripple stainless steel sheath；Described cable core is formed by five insulated wire cores and two copper single lines are stranded, and wherein an insulated wire cores is centrally disposed, and the insulated wire cores at other four Gen Yi centers is the edge that two one group of axle center is symmetricly set on cable core；Two copper single lines are symmetricly set in cable core with the insulated wire cores at center for axle center.
Improving further, complex mineral insulating barrier that described insulated wire cores by aluminium conductor, is extruded in outside aluminium conductor and the halogen-free flameproof band being extruded in outside complex mineral insulating barrier are constituted.
Improving further, described complex mineral insulating barrier is by alkali-free glass fibre band and is coated in the mixing glue-line that the inside and outside face thickness of alkali-free glass fibre band is 0.03-0.05mm and constitutes.
Improve further, outside described ripple stainless steel sheath, be coated with the fireproof coating layer that thickness is 2-4mm.
The beneficial effects of the present invention is:
1, the employing copper-aluminum composite conductor structure of the present invention, can take into account the performances such as the high connductivity of cable, high fire-retardance, asepsis environment-protecting, also can effectively save copper resource, reduce cable cost；Its conductor contact resistance is little, and mechanical strength is high, and during cable fire, light transmittance is high, cable conduction performance, flame-proof environmental protection performance and the excellent performance of resistance to couple corrosion, reasonable price, and the life-span is long, and lightweight, convenient transport and installation, reduces transport and installation cost；
2, complex mineral insulating barrier fusing point is 1375 DEG C, heatproof up to
1020 DEG C, without organic insulating polymeric material, thus get rid of the generation of carbon granules, improve resistance to electrical stability；
3, oversheath uses ripple stainless steel sheath, has good mechanical and physical performance, even if cable occurs a certain degree of deformation to remain to normally work, and also will not damaged its electrical property by violent mechanical damage；Meanwhile, nonmagnetic stainless steel sheath makes wire will not produce vortex phenomenon, improves cable combined closure system；When laying need not poling separately, directly lay, and there is well fire prevention, waterproof, protecting against shock function；
4, scribbling coating outside oversheath, have protection against rodents, anti-ant, radiation proof function, cable good stability, service life is long, and temperature resistant grade is high, and combined closure system is big, and anti-overload ability is strong, and safety is high；
5, inorganic mineral oxygen barrier layer can blocking oxygen, ceramic silicon rubber can form ceramic insulating layer, thus transmit for the data in fire and the more time is provided, effectively prevent data to run off, ensure the safe operation of information and the transmission of electric power and electrical equipment and circuit；
6, all using inorganic material due to cable, capability of resistance to radiation is strong, and after standing radioprotective, the electrically and mechanically performance of cable will not produce any change.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of the complex mineral insulating barrier of the present invention.
Detailed description of the invention
As shown in Figure 1, a kind of mineral insulated cable of the present invention, including cable core, described cable core is formed by five insulated wire cores and two copper single lines 1 are stranded, wherein an insulated wire cores is centrally disposed, the insulated wire cores at other four Gen Yi centers is the edge that two one group of axle center is symmetricly set on cable core, five " I "-shape shapes of insulated wire cores；Two copper single lines are symmetricly set in cable core with the insulated wire cores at center for axle center；Complex mineral insulating barrier 3 that described insulated wire cores by aluminium conductor 2, is extruded in outside aluminium conductor 2 and the halogen-free flameproof band 4 being extruded in outside complex mineral insulating barrier 3 are constituted；Inorganic thermal insulation fire-proof packing 5 is filled in the gap of cable core, at the outer wrapped high temperature mineral matter twining package tape 6 of cable core, outside high temperature mineral matter twining package tape 6, extrude fire-retardant fireproof layer 7, outside fire-retardant fireproof layer 7, extrude inorganic mineral oxygen barrier layer 8, outside inorganic mineral oxygen barrier layer, be set with ripple stainless steel sheath 9；The fireproof coating layer that thickness is 2-4mm it is coated with outside ripple stainless steel sheath.
As in figure 2 it is shown, described complex mineral insulating barrier 3 by alkali-free glass fibre band 31 and is coated in the mixing glue-line 32 that the inside and outside face thickness of alkali-free glass fibre band is 0.03-0.05mm and constitutes.
The invention provides a kind of thinking and the method for mineral insulated cable; the method and the approach that implement this technical scheme are a lot; the above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.Each component part the clearest and the most definite in the present embodiment all can use prior art to be realized.
Claims (4)
1. a mineral insulated cable, it is characterized in that: include cable core, inorganic thermal insulation fire-proof packing is filled in the gap of cable core, at the outer wrapped high temperature mineral matter twining package tape of cable core, fire-retardant fireproof layer is extruded outside high temperature mineral matter twining package tape, outside fire-retardant fireproof layer, extrude inorganic mineral oxygen barrier layer, outside inorganic mineral oxygen barrier layer, be set with ripple stainless steel sheath；Described cable core is formed by five insulated wire cores and two copper single lines are stranded, and wherein an insulated wire cores is centrally disposed, and the insulated wire cores at other four Gen Yi centers is the edge that two one group of axle center is symmetricly set on cable core；Two copper single lines are symmetricly set in cable core with the insulated wire cores at center for axle center.
Mineral insulated cable the most according to claim 1, it is characterised in that: complex mineral insulating barrier that described insulated wire cores by aluminium conductor, is extruded in outside aluminium conductor and the halogen-free flameproof band being extruded in outside complex mineral insulating barrier are constituted.
Mineral insulated cable the most according to claim 2, it is characterised in that: described complex mineral insulating barrier is by alkali-free glass fibre band and is coated in the mixing glue-line that the inside and outside face thickness of alkali-free glass fibre band is 0.03-0.05mm and constitutes.
Mineral insulated cable the most according to claim 1, it is characterised in that: it is coated with the fireproof coating layer that thickness is 2-4mm outside described ripple stainless steel sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610342513.XA CN105913937A (en) | 2016-05-23 | 2016-05-23 | Mineral insulated fire-resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610342513.XA CN105913937A (en) | 2016-05-23 | 2016-05-23 | Mineral insulated fire-resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105913937A true CN105913937A (en) | 2016-08-31 |
Family
ID=56749454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610342513.XA Pending CN105913937A (en) | 2016-05-23 | 2016-05-23 | Mineral insulated fire-resistant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105913937A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111029001A (en) * | 2019-12-23 | 2020-04-17 | 昆山爱光电子有限公司 | Rat-proof fire-resistant security cable |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2448778A (en) * | 2007-05-18 | 2008-10-29 | Draka Uk Ltd | Fire-resistant Cable |
| CN202058496U (en) * | 2011-06-10 | 2011-11-30 | 安徽华能电缆集团有限公司 | Inorganic-mineral-insulated fire-resistant cable with copper core and stainless steel sheath |
| CN102881362A (en) * | 2011-07-15 | 2013-01-16 | 上海朗达电缆（集团）有限公司 | Environment-friendly copper-aluminum composite cable and production method thereof |
| CN204667906U (en) * | 2015-05-18 | 2015-09-23 | 上海市高桥电缆厂有限公司 | Insulating protective metal shell of mineral fire-resisting cable |
| CN204792059U (en) * | 2015-07-28 | 2015-11-18 | 深圳市东佳信电线电缆有限公司 | Novel flexible fire prevention mineral substance cable |
| CN204946565U (en) * | 2015-09-22 | 2016-01-06 | 河南省卓越电缆有限公司 | Mineral insulated cable |
| CN205751626U (en) * | 2016-05-23 | 2016-11-30 | 无锡市新阳光电缆有限公司 | A kind of mineral insulated cable |
-
2016
- 2016-05-23 CN CN201610342513.XA patent/CN105913937A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2448778A (en) * | 2007-05-18 | 2008-10-29 | Draka Uk Ltd | Fire-resistant Cable |
| CN202058496U (en) * | 2011-06-10 | 2011-11-30 | 安徽华能电缆集团有限公司 | Inorganic-mineral-insulated fire-resistant cable with copper core and stainless steel sheath |
| CN102881362A (en) * | 2011-07-15 | 2013-01-16 | 上海朗达电缆（集团）有限公司 | Environment-friendly copper-aluminum composite cable and production method thereof |
| CN204667906U (en) * | 2015-05-18 | 2015-09-23 | 上海市高桥电缆厂有限公司 | Insulating protective metal shell of mineral fire-resisting cable |
| CN204792059U (en) * | 2015-07-28 | 2015-11-18 | 深圳市东佳信电线电缆有限公司 | Novel flexible fire prevention mineral substance cable |
| CN204946565U (en) * | 2015-09-22 | 2016-01-06 | 河南省卓越电缆有限公司 | Mineral insulated cable |
| CN205751626U (en) * | 2016-05-23 | 2016-11-30 | 无锡市新阳光电缆有限公司 | A kind of mineral insulated cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111029001A (en) * | 2019-12-23 | 2020-04-17 | 昆山爱光电子有限公司 | Rat-proof fire-resistant security cable |
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|---|---|---|---|
| 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: 20160831 |