CN1542868A - Light flexible splice free fire-proof cable - Google Patents
Light flexible splice free fire-proof cable Download PDFInfo
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- CN1542868A CN1542868A CNA031166768A CN03116676A CN1542868A CN 1542868 A CN1542868 A CN 1542868A CN A031166768 A CNA031166768 A CN A031166768A CN 03116676 A CN03116676 A CN 03116676A CN 1542868 A CN1542868 A CN 1542868A
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- insulation layer
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- inorganic insulation
- soft non
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Abstract
This invention relates to a light flexible endless fireproof composite-layer cable composed of a three-core conductor, an insulation layer, a packing layer, a protection layer and a sheathing orderly arranged from inside, among which, the packing layer is between the insulation and the protection layers, the insulation layer is a composite structure including an organic and a single or double inorganic layer and the organic wraps around the conductor, the inorganic wraps around the organic but is inside the protection layer, the copper sheathing is made of copper belt rolled longitudinally, corrugated and sealed by argon arc welding used in anti-explosion system and equipments, dangerous places of fire, high temperature places etc.
Description
Technical field: the present invention relates to a kind of cable, particularly a kind of light-duty soft non junction fireproof cable.
Background technology: the copper core copper sheath magnesium oxide insulated cable of Shi Yonging in the market because of its fire prevention, explosion-proof, waterproof, performance such as high temperature resistant, corrosion-resistant, is applied to explosion protection system and equipment, fire hazard district (petrochemical plant, nuclear power station etc.); High temperature occasion (metallurgical industry, power plant etc.); Require ultra-safe facility (public place, skyscraper); Underground supply line (subway, tunnel, mine etc.).But because this cable conductor, insulation, sheath adopt " drawing synchronously " technology, this is with regard to (the cross-sectional area of conductor 300mm that makes the factory length of this cable be restricted
2Cable, factory length only has 30m), carry as the long distance of need, then need repeatedly joint, and joint quality is difficult to reach fire protection requirement, the fault point is many.Very high to magnesian purity requirement in manufacture process, otherwise when " drawing ", the insulating barrier of cable very easily wrecks, and punctures the processing performance instability thereby cause insulated electro.Adopt the fireproof cable bending property of this structural manufacturing process poor, production length is short, cost involves great expense, the construction requirement height, this give cable manufacturing, install lay, the market scope of application brought very big restriction.
Summary of the invention: the technical issues that need to address of the present invention are: original copper core copper sheath magnesium oxide insulated cable factory length is restricted, need joint midway in laying, bending property is relatively poor, provides a kind of lay length unrestricted joint, the flexible light-duty soft non junction fireproof cable of need not midway repeatedly.
Technical scheme of the present invention is: light-duty soft non junction fireproof cable, by conductor, insulation, fill, overcoat, sheath is formed, conductor adopts three-core structure, cable is straticulate structure, be followed successively by conductor from inside to outside, insulation, overcoat and sheath, between insulation and overcoat is packed layer, it is characterized in that: insulating is lamination layer structure, comprise organic insulator and inorganic insulation layer, inorganic insulation layer can be individual layer or bilayer, organic insulator is extruded in outside the conductor, inorganic insulation layer wrapped outside organic insulator between organic insulator and overcoat, sheath adopts the vertical bag of copper strips embossing sealing argon arc to be welded.Described organic insulator is that silicon rubber extrudes and forms.To be that the alkali-free glass wool band is wrapped form the individual layer inorganic insulation layer, and double-deck inorganic insulation layer is made of interior inorganic insulation layer and outer inorganic insulation layer, and interior inorganic insulation layer forms by the mica band is wrapped, and outer inorganic insulation layer forms by the alkali-free glass wool band is wrapped.
The invention has the beneficial effects as follows; Because organic material and the compound composition of inorganic material are adopted in the insulation of cable, form compound fire-proof high-temperature resistant insulation system, even the organic substance of insulating barrier is burned, the material that the burning back produces still has good insulation effect, the construction of cable stable performance of burning back, no any combustible medium in the insulating barrier, insulation property are good.Because the sheath of cable adopts the vertical bag of copper strips embossing seal welding to form, have fire prevention, explosion-proof, waterproof, anticorrosion, shielding, resistance to compression, combination property such as high temperature resistant, and can stop fuel gas and flame to enter cable inside, copper sheath has enough ampacitys in addition, can make earthing conductor.Cable termination is drawn simple and convenient continue the same with common cable of joint, need not special final connection device.
Description of drawings:
Accompanying drawing is the embodiment of the invention 1 a cross section structure schematic diagram
Among the figure: 1. inorganic insulation layer 4. outer inorganic insulation layers 5. are filled 6. overcoats, 7. copper sheaths in conductor 2. organic insulators 3.
Embodiment: the invention will be further described below in conjunction with accompanying drawing
Embodiment 1: with reference to accompanying drawing, light-duty soft non junction fireproof cable is made up of conductor 1, organic insulator 2, interior inorganic insulation layer 3, outer inorganic insulation layer 4, filling 5, overcoat 6, copper sheath 7.Conductor 1 is according to the regulation of GB/T3956, adopt Type B to press structure, organic insulator 2 adopts heat-resistant fireproof organic material silicon rubber to extrude and layer, interior inorganic insulation layer 3 adopts wrapped the forming of high temperature resistant refractory inorganic material mica band, outer inorganic insulation layer 4 adopts wrapped the forming of high temperature resistant refractory inorganic material alkali-free glass wool band, fill 5 and adopt high temperature resistant refractory inorganic material alkali-free glass wool filler piece, overcoat 6 adopts wrapped the forming of high temperature resistant refractory inorganic material alkali-free glass wool band, and copper sheath 7 adopts the vertical bag of copper strips embossing sealing argon arc to be welded.
This product can be widely used in explosion protection system and equipment, fire hazard zone (petrochemical industry industry, nuclear power station etc.), high temperature occasion (metallurgical industry, power plant etc.), underground line (subway, tunnel, mine etc.) and require occasions (public place, personnel compact district, skyscraper etc.) such as ultra-safe facility, makes the usefulness of electric energy transmission ﹠ distribution, electrical control connection.
Embodiment 2: inorganic insulation layer is an individual layer, adopts wrapped the forming of high temperature resistant refractory inorganic material alkali-free glass wool band.All the other are identical with embodiment 1.
Claims (8)
1, light-duty soft non junction fireproof cable, form by conductor, insulation, filling, overcoat, sheath, conductor adopts three-core structure, cable is straticulate structure, be followed successively by conductor, insulation, overcoat and sheath from inside to outside, between insulation and overcoat is packed layer, and it is characterized in that: insulating is lamination layer structure, comprises organic insulator and inorganic insulation layer.
2. light-duty soft non junction fireproof cable according to claim 1, it is characterized in that: inorganic insulation layer can be individual layer or bilayer, organic insulator is extruded in outside the conductor, inorganic insulation layer wrapped outside organic insulator between organic insulator and overcoat.
3, light-duty soft non junction fireproof cable according to claim 1 and 2 is characterized in that: described organic insulator is that silicon rubber extrudes and forms.
4, light-duty soft non junction fireproof cable according to claim 2 is characterized in that: to be that the alkali-free glass wool band is wrapped form the individual layer inorganic insulation layer.
5, light-duty soft non junction fireproof cable according to claim 2, it is characterized in that: double-deck inorganic insulation layer is made of interior inorganic insulation layer and outer inorganic insulation layer, interior inorganic insulation layer forms by the mica band is wrapped, and outer inorganic insulation layer forms by the alkali-free glass wool band is wrapped.
6, light-duty soft non junction fireproof cable according to claim 1, it is characterized in that: sheath is a copper sheath, copper sheath adopts the vertical bag of copper strips embossing sealing argon arc to be welded.
7, light-duty soft non junction fireproof cable according to claim 1 is characterized in that: be filled to the alkali-free glass wool filler piece.
8, light-duty soft non junction fireproof cable according to claim 1, it is characterized in that: overcoat forms by the alkali-free glass wool band is wrapped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031166768A CN1542868A (en) | 2003-04-28 | 2003-04-28 | Light flexible splice free fire-proof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031166768A CN1542868A (en) | 2003-04-28 | 2003-04-28 | Light flexible splice free fire-proof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1542868A true CN1542868A (en) | 2004-11-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031166768A Pending CN1542868A (en) | 2003-04-28 | 2003-04-28 | Light flexible splice free fire-proof cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN1542868A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950615A (en) * | 2010-10-22 | 2011-01-19 | 赵国忠 | Flexible fireproof mineral insulated cable and manufacturing method thereof |
| CN102074288A (en) * | 2011-01-28 | 2011-05-25 | 周海燕 | Fire-proof cable |
| CN102117675A (en) * | 2011-03-04 | 2011-07-06 | 沈勇 | Refractory flame-retardant cable |
| CN102360608A (en) * | 2011-10-12 | 2012-02-22 | 河南省电力公司信阳供电公司 | High-temperature resistant cable |
| CN104332245A (en) * | 2014-10-29 | 2015-02-04 | 无锡市明珠电缆有限公司 | Novel flexible and bending resistant type DC pulling cable of rail transit and preparation method of DC pulling cable |
-
2003
- 2003-04-28 CN CNA031166768A patent/CN1542868A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101950615A (en) * | 2010-10-22 | 2011-01-19 | 赵国忠 | Flexible fireproof mineral insulated cable and manufacturing method thereof |
| CN102074288A (en) * | 2011-01-28 | 2011-05-25 | 周海燕 | Fire-proof cable |
| CN102117675A (en) * | 2011-03-04 | 2011-07-06 | 沈勇 | Refractory flame-retardant cable |
| CN102360608A (en) * | 2011-10-12 | 2012-02-22 | 河南省电力公司信阳供电公司 | High-temperature resistant cable |
| CN104332245A (en) * | 2014-10-29 | 2015-02-04 | 无锡市明珠电缆有限公司 | Novel flexible and bending resistant type DC pulling cable of rail transit and preparation method of DC pulling cable |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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