CN203536083U - Flexible mineral insulation fireproof cable - Google Patents
Flexible mineral insulation fireproof cable Download PDFInfo
- Publication number
- CN203536083U CN203536083U CN201320691165.9U CN201320691165U CN203536083U CN 203536083 U CN203536083 U CN 203536083U CN 201320691165 U CN201320691165 U CN 201320691165U CN 203536083 U CN203536083 U CN 203536083U
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- China
- Prior art keywords
- copper
- flexible mineral
- sheath
- cable
- mineral insulation
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Abstract
The utility model discloses a flexible mineral insulation fireproof cable. The cable is composed of the following components from an inner core to an outer packaging layer: copper conductors, an insulating layer, filler, a winding layer, a pattern-rolled copper sheath and an outer sheath. The inner core is provided with 1-5 sets of copper conductors, wherein each set of copper conductors is obtained through intertwisting multiple copper wires or multiple nickel-plated copper wires. Each set of copper conductors obtained through intertwisting is packaged by an insulating layer independently. The insulating layer and the winding layer respectively have a packaging structure which is formed through closely winding synthetic mica tape for 3-6 layers. The pattern-rolled copper sheath has a red copper bellow packaged structure. The outer sheath has a packaging structure which is made of ceramic silicone rubber. According to the flexible mineral insulation fireproof cable provided by the utility model, multi-stage intertwisting is adopted and insulating layers are respectively packaged independently. Therefore the flexible mineral insulation fireproof cable has the advantages of: excellent electric and fireproof performance, high bending performance, high wearing and abrasion resistance, no halogen and environment-friendly performance, long service life, simple mounting and manufacture in machining and use, stable structure, no moisturizing, no production length limitation, and high voltage level which reaches up to 1000V, etc.
Description
Technical field
The utility model belongs to power cable manufacturing technology field, is specially a kind of novel flexible mineral insulated cable.
Background technology
Along with the sharp increase of urban population and continuing to increase of building and communal facility, and every year because the fire incident of electric initiation is high, the importance of security against fire shows especially out, people require also increasingly urgent to cable fire-proof, mineral insulated cable has also welcome the wide market space thereupon, so-called mineral insulated cable is normally to use annealed copper as conductor, closely knit magnesium oxide is as insulation, annealing copper pipe is as a kind of cable of sheath, if desired, in annealed copper sheath outside, extrude one deck plastics outer jacket, smokeless halogen-free occasion can add one deck low smoke and zero halogen sheath outside.Current mineral-insulated fireproof electric wire both domestic and external is mostly conductor and adopts real core copper bar, insulate for magnesium oxide, and sheath is that drawing copper tubes forms, and its electric pressure is conventionally at 750V and following.The easy moisture absorption of insulating material magnesia powder, brings a lot of difficulties to the making of installation and terminal.Because oversheath adopts drawing copper tubes, form, decay resistance is not enough, and drum length of cable is limited, and integral body is rigidity, and bending property is poor, is difficult to meet market actual demand.
Summary of the invention
The utility model discloses a kind of novel flexible mineral insulated cable according to the deficiencies in the prior art.Problem to be solved in the utility model is to provide a kind of electric fireproof excellent performance, good bending property, wear resistant corrosion resistant, halogen-free environmental, long service life, the flexible mineral insulated cable of wide accommodation.
The utility model is achieved through the following technical solutions:
Flexible mineral insulated cable, is characterized in that: described cable is copper conductor, insulating barrier, filler, lapping layer, embossing copper sheath and oversheath by inner core to outer wrapping layer successively; Described inner core is by 1 to 5 group, every group by multiply copper monofilament or the stranded copper conductor forming of multiply nickel-clad copper single line, and the copper conductor of every group of stranded composition independently wraps up insulating barrier respectively.
Described insulating barrier and lapping layer are synthetic mica tape by the package structure of wrapped 3～6 layers of formation of compacting.
Described embossing copper sheath is red copper bellows package structure, and its bellows surface has weld seam equal in length with it vertically.
Described oversheath is the package structure that ceramic silicon rubber forms by expressing technique.
Described filler for electrician with alkali-free glass wool band by the wrapped formation package structure that compacts.
The utility model cable copper conductor employing multiple layer of copper monofilament is stranded and independently wrap up respectively insulation layer structure, has good flexural property, adopts nickel-clad copper single line stranded, can further improve antioxygenic property and the decay resistance of copper conductor.
The wrapped multilayer synthetic mica tape that compacts in the outside of copper conductor forms insulating barrier, synthetic mica tape than natural mica band quality soft, wrapped docile, tensile strength is large, adopt two-sided reinforcement, in wrapped process, be difficult for scratch mica layer, the fire resistance rank of synthetic mica tape reaches 950 ℃～1000 ℃ of A levels.
Outside at insulating barrier, consolidation has been filled electrician and has been formed filler with alkali-free glass wool band, by alkali-free glass fibre, is worked out, have high temperature resistant, insulating properties, good corrosion resistance, moisture absorption is few, the characteristic that stretching resistance is strong.
Outside at filler, compacted multilayer synthetic mica tape wrapped and formed lapping layer, its material is identical with insulating barrier with performance.
Outside at lapping layer subsequently, the copper strips after processing is carried out to continuous vertical and be bundled into circular tube shaped, after adopting argon arc welding to connect longitudinal pipe seam, the pressure of rerolling bellows, makes embossing copper sheath, has improved mechanical performance and the anticollision performance of whole cable.Copper sheath is good conductor, is good earth connection, and arrives continuously cable total length, has greatly improved ground protection sensitivity and reliability, and meanwhile, cable is under the shielding of copper sheath, and the telecommunication cable that can not be close to, control cables produce electromagnetic interference.
Finally, by expressing technique, at embossing copper sheath, be coated one deck oversheath, by sulfuration, formed oversheath.Oversheath is a kind of ceramic fireproof electric wire cable silicon rubber; nontoxic under normal temperature, tasteless; soft full of elasticity; there is extraordinary fire prevention, fire-resistant, fire-retardant, low cigarette, nontoxic performance; residue after burning is ceramic-like duricrust, and duricrust not melting under fire (600-1300 ℃) environment, does not drip; guarantee circuit in the situation that of fire is unimpeded, plays firm protective effect.
The utility model helpfulness: the utility model cable adopts the multistage stranded and independent parcel of difference insulation layer structure, electric fireproof excellent performance, good bending property, wear resistant corrosion resistant, halogen-free environmental, long service life, when processing and use, installs, manufactures easy, Stability Analysis of Structures, can not make moist, the advantage such as cable production length is unrestricted, its electric pressure can reach 1000V.
Accompanying drawing explanation
Fig. 1 is a kind of novel flexible mineral insulated cable structural representation.
In figure: the 1st, copper conductor, the 2nd, insulating barrier, the 3rd, filler, the 4th, lapping layer, the 5th, embossing copper sheath, the 6th, oversheath.
Embodiment
Below by embodiment, the utility model is conducted further description; the present embodiment is only for being further detailed the utility model; but can not be interpreted as the restriction to the utility model protection range, those skilled in the art can make the scope that some nonessential improvement and adjustment belong to the utility model protection according to above-mentioned content of the present utility model.
In conjunction with Fig. 1.
As shown in the figure, the utility model flexible mineral insulated cable, its copper conductor 1 is by multiply copper monofilament or multiply nickel-clad copper single line stranded composition, there is good flexural property, its core number is 1～5 core, in this illustration, be 3 core assemblies, when adopting nickel-clad copper single line stranded, will further improve antioxygenic property and the decay resistance of copper conductor 1.
The wrapped multilayer synthetic mica tape of compacting in the outside of copper conductor 1 forms insulating barrier 2, wrapped docile, in wrapped process, be difficult for scratch mica layer.
In insulating barrier 2 outsides, consolidation has been filled electrician and has been formed filler 3 with alkali-free glass wool band.
In filler 3 outsides, compacted multilayer synthetic mica tape wrapped and formed lapping layer 4.
In lapping layer 4 outsides, the copper strips after processing is carried out to continuous vertical and be bundled into circular tube shaped subsequently, after adopting argon arc welding to connect longitudinal pipe seam, the pressure of rerolling bellows, makes embossing copper sheath 5.
Finally, by expressing technique, at embossing copper sheath 5, be coated one deck ceramic silicon rubber oversheath.Extrude and will take cold-extruded, the screw rod of extruder, head, body temperature be generally lower than 30 ℃, is the highlyest no more than 50 ℃, then adopts through overfire air (160 ℃～210 ℃ of curing temperatures) or warm water sulfuration (curing temperature is not less than 95 ℃), makes oversheath 6.
Claims (4)
1. a flexible mineral insulated cable, is characterized in that: described cable is copper conductor (1), insulating barrier (2), filler (3), lapping layer (4), embossing copper sheath (5) and oversheath (6) by inner core to outer wrapping layer successively; Described inner core is by 1 to 5 group, every group by multiply copper monofilament or the stranded copper conductor forming of multiply nickel-clad copper single line (1), and the copper conductor of every group of stranded composition (1) is independent parcel insulating barrier (2) respectively.
2. flexible mineral insulated cable according to claim 1, is characterized in that: described insulating barrier (2) and lapping layer (4) are synthetic mica tape by the package structure of wrapped 3～6 layers of formation of compacting.
3. flexible mineral insulated cable according to claim 1, is characterized in that: described embossing copper sheath (5) is red copper bellows package structure, and its bellows surface has weld seam equal in length with it vertically.
4. flexible mineral insulated cable according to claim 1, is characterized in that: described oversheath (6) is the package structure that ceramic silicon rubber forms by expressing technique.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320691165.9U CN203536083U (en) | 2013-11-05 | 2013-11-05 | Flexible mineral insulation fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320691165.9U CN203536083U (en) | 2013-11-05 | 2013-11-05 | Flexible mineral insulation fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203536083U true CN203536083U (en) | 2014-04-09 |
Family
ID=50422265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320691165.9U Expired - Fee Related CN203536083U (en) | 2013-11-05 | 2013-11-05 | Flexible mineral insulation fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203536083U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887080A (en) * | 2017-11-10 | 2018-04-06 | 扬州市凤鸣电缆有限公司 | Ceramic silicon rubber cable sulfuration process |
| CN108511113A (en) * | 2018-01-26 | 2018-09-07 | 安徽华宇电缆集团有限公司 | A kind of fire safe type naval vessel electric power and signal data transmission composite rope and its manufacturing process |
-
2013
- 2013-11-05 CN CN201320691165.9U patent/CN203536083U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107887080A (en) * | 2017-11-10 | 2018-04-06 | 扬州市凤鸣电缆有限公司 | Ceramic silicon rubber cable sulfuration process |
| CN107887080B (en) * | 2017-11-10 | 2019-09-20 | 扬州市凤鸣电缆有限公司 | Ceramic silicon rubber cable sulfuration process |
| CN108511113A (en) * | 2018-01-26 | 2018-09-07 | 安徽华宇电缆集团有限公司 | A kind of fire safe type naval vessel electric power and signal data transmission composite rope and its manufacturing process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20211105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |