CN101430947A - Corrugated metal sheath inorganic mineral insulation cable and method for producing the same - Google Patents
Corrugated metal sheath inorganic mineral insulation cable and method for producing the same Download PDFInfo
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- CN101430947A CN101430947A CNA2008103060085A CN200810306008A CN101430947A CN 101430947 A CN101430947 A CN 101430947A CN A2008103060085 A CNA2008103060085 A CN A2008103060085A CN 200810306008 A CN200810306008 A CN 200810306008A CN 101430947 A CN101430947 A CN 101430947A
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Abstract
The invention discloses a corrugated metallic sheath inorganic mineral insulated cable and a manufacturing method thereof. The cable consists of an inner cable core, an insulating layer winding the outside of the cable core, and an outermost metallic sheath; the cable core is formed by twisting a bundle of copper wires, the insulating layer is an inorganic mineral insulated tape, the metallic sheath is a copper corrugated tube, corrugation of the copper corrugated tube has upper peaks and lower valleys, the cable core, the insulating layer and the copper corrugated tube have the same length, and the surface of the copper corrugated tube is provided with a welding seam with the same length of the copper corrugated tub along the axial direction. As the cable takes a corrugated shape, the cable is easy to be bent and mounted in a laying field, which lowers the construction cost, can prevent a cable conductor and the insulating layer from being directly burnt by flame, prevents a phase and phase conductor from short circuit, and prevents elevators and fire fighting devices from being incapable of operating without power supply, thus obtaining precious time to facilitate persons to escape in time, and reduce property loss.
Description
Technical field
The invention belongs to a kind of electric wire and preparation method thereof, particularly a kind of fireproof cable and preparation method thereof.
Background technology
In building, lay in the electric wire of use at present, also do not have a kind ofly can prevent flame combustion the time, can avoid burning out the corrugated metal sheath inorganic mineral insulation cable of conductor and insulating barrier.When breaking out of fire in building, common electric wire, because of its surperficial insulating material not fire-resistant, will melt when running into naked light or high temperature, cause cable short circuit between phase and phase, can't normally use again, cause bringing unnecessary property loss, even order the funeral sea of fire because of elevator, fire protection equipment can't use.
Summary of the invention
Purpose of the present invention is to provide a kind of electric wire that can prevent in flame, plays protection electric wire corrugated metal sheath inorganic mineral insulation cable that can normally move in burning and preparation method thereof.Solve that electric wire can be prevented fires, easily crooked technical problem again.
To achieve these goals, the present invention is by the following technical solutions:
A kind of corrugated metal sheath inorganic mineral insulation cable, it is made up of the cable core of inside, the insulating barrier and the outermost metallic sheath that are wrapped in the cable core outside, it is characterized in that: described cable core is formed by a branch of wire is stranded, insulating barrier is the inorganic mineral insulating tape, metallic sheath is the red copper bellows, the ripple of red copper bellows has superiors and Xia Gu, cable core, insulating barrier, red copper bellows three's length is for being equal to, and the surface of red copper bellows has a weld seam with its equal in length vertically.
Above-mentioned cable core can be the cylindrical cable core of single core, twines the 6-8 layer insulating outside cable core, and the radical of every core wire is 1 to 61.
Above-mentioned cable core can be 2 cores of semicircle cable core combination or 3 cores, 4 cores or 5 cores of fan-shaped cable core combination, and the radical of every core wire is 1 to 61, and the 3-7 layer insulating is twined in the outside of every cable core, and 3-6 layer secondary insulating barrier is twined in the outside after the multicore combination.
Described cable core can be the cylindrical cable core of multicore of four-core or five cores, is filled with the center gasket for packing with the cable core coaxial direction at each cable core center of surrounding, and is filled with the outer rim gasket for packing in peripheral four jiaos.
The superiors of above-mentioned red copper bellows sheath and the angle of following paddy are that radius is the arc chord angle of 0.6-2.5mm, the ripple degree of depth of red copper bellows is at 0.5-4.0mm, the spacing of ripple is 4-10mm, the external diameter of red copper bellows is Φ 8-Φ 60mm, the outer round surface of red copper bellows and bore area all are shown as impartial ripple, and ripple copper material thickness is 0.30-2.00mm.
The material of above-mentioned insulating barrier can be the mixed type inorganic material insulating tape that glassfiber insulation band, mica tape, asbestos silk ribbon or metal oxide are made.
Above-mentioned wire can be copper wire, copper alloy silk or galvanized wire.
Above-mentioned gasket for packing can be glass fiber rope, glass cord or asbestos yarn rope.
A kind of manufacture method of corrugated metal sheath inorganic mineral insulation cable is characterized in that its making step is as follows:
Step 1: a branch of wire is twisted into cable core.
Step 2: the inorganic mineral insulating tape is wrapped in the cable core outside.
Step 3: smooth metal tape is rolled into tubulose through the mould axial motion, and parcel has twined the cable core of inorganic mineral insulating tape in the pipe.
Step 4: with welder metal tape center-line joint place is welded into air-tight state then.
Step 5: on copper tube, shut out ripple with graining device.
Above-mentioned cable core can be the cylindrical cable core of single core, twines the 6-8 layer insulating outside cable core; Perhaps, above-mentioned cable core is 2 cores of semicircle cable core combination or 3 cores, 4 cores or 5 cores of fan-shaped cable core combination, and the radical of every core wire is 1 to 61, and the 3-7 layer insulating is twined in the outside of every cable core, and 3-6 layer secondary insulating barrier is twined in the outside after the multicore combination.
The present invention is a corrugated because of himself, so be easy to bending, temperature influence is not subjected to elemental destruction, laying on-the-spot easily installation, has reduced construction cost.
The present invention is owing to can prevent that flame from burning out cable, and maintenance normally moves in the scene of fire and can make cable.Avoid unnecessary property loss and casualties, improved the coefficient of safety of important events.
Corrugated metal sheath inorganic mineral insulation cable of the present invention is when breaking out of fire, and it is useless to prevent that flame from burning cable.Prevent that cable conductor and insulating barrier from directly being burnt by flame, prevent the short circuit of phase and phase conductor.Avoid elevator, fire protection equipment can't move, thereby obtain valuable time, make personnel in time escape, reduce property loss because of non-transformer causes.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the construction of cable schematic diagram that the embodiment of the invention 1 has cylindrical cable core.
Fig. 3 is the construction of cable schematic diagram that the embodiment of the invention 2 has semicircle cable core.
Fig. 4 is the construction of cable schematic diagram that the embodiment of the invention 3 has the cylindrical cable core of four-core.
Fig. 5 is the construction of cable schematic diagram that the embodiment of the invention 4 has fan-shaped cable core.
Paddy, 6-weld seam, the semicircle cable core of 7-, the cylindrical cable core of 8-multicore, the fan-shaped cable core of 9-, 10-outer rim gasket for packing, 11-center gasket for packing, 12-secondary insulating barrier under the cylindrical cable core of the single core of Reference numeral: 1-, 2-insulating barrier, 3-metallic sheath, 4-superiors, the 5-.
Embodiment
Embodiment is referring to Fig. 1, shown in Figure 2, this corrugated metal sheath inorganic mineral insulation cable, it is made up of the cable core of inside, the insulating barrier 2 and the outermost metallic sheath 3 that are wrapped in the cable core outside, described cable core is formed by a branch of wire is stranded, insulating barrier 2 is inorganic mineral insulating tapes, metallic sheath 3 is red copper bellowss, the ripple of red copper bellows has superiors 4 and following paddy 5, cable core, insulating barrier, red copper bellows three's length is for being equal to, and the surface of red copper bellows has a weld seam 6 with its equal in length vertically.Above-mentioned cable core is the cylindrical cable core 1 of single core, twines 6-8 layer insulating 2 outside cable core, and the radical of every core wire is 1 to 61.
Described wire can be copper wire, copper alloy silk or galvanized wire etc.The length of red copper bellows can be 1 meter-2000 meters.The thickness of insulating barrier 2 can be 0.14 millimeter, and material can be the mixed type inorganic material insulating tape that glassfiber insulation band, mica tape, asbestos silk ribbon or metal oxide are made.
The superiors of above-mentioned red copper bellows sheath and the angle of following paddy are that radius is the arc chord angle of 0.6-2.5mm, the ripple degree of depth of red copper bellows is at 0.5-4.0mm, the spacing of ripple is 4-10mm, the external diameter of red copper bellows is Φ 8-Φ 60mm, the outer round surface of red copper bellows and bore area all are shown as impartial ripple, and ripple copper material thickness is 0.30-2.00mm.
Referring to Fig. 3, cable core is 2 cores of semicircle cable core 7 combinations, and the radical of every core wire is 1 to 61, and 3-7 layer insulating 2 is twined in the outside of every cable core, and 3-6 layer secondary insulating barrier 12 is twined in the outside after the multicore combination.
Referring to Fig. 4, described cable core is the cylindrical cable core 8 of multicore, is 4 cores, is filled with center gasket for packing 11 with the cable core coaxial direction at each cable core center of surrounding, and is filled with outer rim gasket for packing 10 in peripheral four jiaos.The material of gasket for packing can be glass tape, its technology be glass heats after uniform temperature, glass material is drawn wire, and then is twisted into circular rope form.Gasket for packing also can be glass fiber rope, glass cord or asbestos yarn rope.
Referring to Fig. 5, above-mentioned cable core is 4 cores of fan-shaped cable core 9 combinations, and the radical of every core wire is 1 to 61, and 3-7 layer insulating 2 is twined in the outside of every cable core, and 3-6 layer secondary insulating barrier 12 is twined in the outside after the multicore combination.
A kind of manufacture method of corrugated metal sheath inorganic mineral insulation cable, its making step is as follows:
Step 1: a branch of wire is twisted into cable core.
Step 2: the inorganic mineral insulating tape is wrapped in the cable core outside.
Step 3: smooth metal tape is rolled into tubulose through the mould axial motion, and parcel has twined the cable core of inorganic mineral insulating tape in the pipe.
Step 4: with welder metal tape center-line joint place is welded into air-tight state then.
Step 5: on copper tube, shut out ripple with graining device.
Above-mentioned cable core is the cylindrical cable core 1 of single core, twines 6-8 layer insulating 2 outside cable core; Perhaps, above-mentioned cable core is 2 cores of semicircle cable core combination or 3 cores, 4 cores or 5 cores of fan-shaped cable core combination, the radical of every core wire is 1 to 61, and 3-7 layer insulating 2 is twined in the outside of every cable core, and 3-6 layer secondary insulating barrier 12 is twined in the outside after the multicore combination.
Multi-core conductor has cylindric, semicircle, fan shape, there is filler the adjacent gap of cable core and cable core, and round thread shape red copper bellows oversheath is wrapped in mineral insulation band lapping layer outside.Conductor is formed by stranded copper wire is stranded, because of varying in size of cross section, so the external diameter of copper wire is also different with radical.1 to 61 of copper wire radical, cross section 1 is to 630mm
2, copper wire is arranged as cylindric.The mineral insulation band is wrapped in the outside of cylindrical conductor, and the insulating tape layer thickness changes to some extent because of the size in cross section.Round thread shape red copper bellows is wrapped in the outside of mineral insulation band.Round thread shape red copper bellows has superiors and Xia Gu, and superiors and following paddy are formed by semicircle arc chord angle, has the oblique angle to be connected between superiors and following paddy.The degree of depth of round thread shape red copper bellows is all at 0.5-4.0mm, and the shape of threads spacing changes because of external diameter is different, and whole round thread shape red copper bellows length can be made by client's Len req at 1 meter-2000 meters.Outer round surface and bore area all are shown as impartial shape of threads ripple, a weld seam with its equal in length are arranged, shape of threads ripple copper material thickness 0.30-2.00mm on shape of threads corrugated surface axis.
Conductor forms by stranded copper wire is stranded, and specification varies in size, and the stranded copper wire thickness of conductor is also different, and copper wire is arranged by circumferential shapes.As conductor is sector structure, and its combined shaped is two cores, and the face that two cores are bordered is 180 degree.As combined shaped is four-core, and the face that four-core is bordered is 90 degree.Multicore cable combination 2-5 core, its different combination cylindrical is circle.
The welding of corrugated metallic jacket: round thread shape red copper bellows is wrapped in the outside of mineral insulation band, earlier a smooth copper strips is become tubulose after the axial motion roll extrusion of mould, the copper strips of the outside diameter of cable configuration different in width of different size, the center-line joint place is welded into air-tight state by welder, and cable core is made axial-movement synchronously in copper pipe.Do the circumference rolling by graining device again and shut out superiors and following paddy round thread shape red copper bellows.
Claims (10)
- [claim 1] a kind of corrugated metal sheath inorganic mineral insulation cable, it is made up of the cable core of inside, the insulating barrier (2) and the outermost metallic sheath (3) that are wrapped in the cable core outside, it is characterized in that: described cable core is formed by a branch of wire is stranded, insulating barrier (2) is the inorganic mineral insulating tape, metallic sheath (3) is the red copper bellows, the ripple of red copper bellows has superiors (4) He Xiagu (5), cable core, insulating barrier, red copper bellows three's length is for being equal to, and the surface of red copper bellows has a weld seam (6) with its equal in length vertically.
- [claim 2] corrugated metal sheath inorganic mineral insulation cable according to claim 1 is characterized in that: above-mentioned cable core is the cylindrical cable core of single core (1), twines 6-8 layer insulating (2) outside cable core, and the radical of every core wire is 1 to 61.
- [claim 3] corrugated metal sheath inorganic mineral insulation cable according to claim 1, it is characterized in that, above-mentioned cable core is 2 cores of semicircle cable core (7) combination or 3 cores, 4 cores or 5 cores of fan-shaped cable core (9) combination, the radical of every core wire is 1 to 61,3-7 layer insulating (2) is twined in the outside of every cable core, and 3-6 layer secondary insulating barrier (12) twined in the outside after the multicore combination.
- [claim 4] corrugated metal sheath inorganic mineral insulation cable according to claim 1, it is characterized in that: described cable core is four-core or the cylindrical cable cores of five core multicores (8), be filled with center gasket for packing (11) with the cable core coaxial direction at each cable core center of surrounding, be filled with outer rim gasket for packing (10) in peripheral four jiaos.
- [claim 5] corrugated metal sheath inorganic mineral insulation cable according to claim 1, it is characterized in that: the superiors of above-mentioned red copper bellows sheath and the angle of following paddy are that radius is the arc chord angle of 0.6-2.5mm, the ripple degree of depth of red copper bellows is at 0.5-4.0mm, the spacing of ripple is 4-10mm, the external diameter of red copper bellows is Φ 8-Φ 60mm, the outer round surface of red copper bellows and bore area all are shown as impartial ripple, and ripple copper material thickness is 0.30-2.00mm.
- [claim 6] corrugated metal sheath inorganic mineral insulation cable according to claim 1 is characterized in that: the material of above-mentioned insulating barrier (2) is the mixed type inorganic material insulating tape that glassfiber insulation band, mica tape, asbestos silk ribbon or metal oxide are made.
- [claim 7] corrugated metal sheath inorganic mineral insulation cable according to claim 1 is characterized in that: above-mentioned wire is copper wire, copper alloy silk or galvanized wire.
- [claim 8] corrugated metal sheath inorganic mineral insulation cable according to claim 1 is characterized in that: above-mentioned gasket for packing is glass fiber rope, glass cord or asbestos yarn rope.
- The manufacture method of any described corrugated metal sheath inorganic mineral insulation cable of [claim 9] a kind of claim 1-8 is characterized in that its making step is as follows:Step 1: a branch of wire is twisted into cable core;Step 2: the inorganic mineral insulating tape is wrapped in the cable core outside;Step 3: smooth metal tape is rolled into tubulose through the mould axial motion, and parcel has twined the cable core of inorganic mineral insulating tape in the pipe;Step 4: with welder metal tape center-line joint place is welded into air-tight state then;Step 5: on copper tube, shut out ripple with graining device.
- The manufacture method of [claim 10] corrugated metal sheath inorganic mineral insulation cable according to claim 9 is characterized in that, above-mentioned cable core is the cylindrical cable core of single core (1), twines 6-8 layer insulating (2) outside cable core; Perhaps, above-mentioned cable core is 2 cores of semicircle cable core combination or 3 cores, 4 cores or 5 cores of fan-shaped cable core combination, the radical of every core wire is 1 to 61, and 3-7 layer insulating (2) is twined in the outside of every cable core, and 3-6 layer secondary insulating barrier (12) twined in the outside after the multicore combination.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2008103060085A CN101430947B (en) | 2008-12-05 | 2008-12-05 | Corrugated metal sheath inorganic mineral insulation cable and method for producing the same |
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| CN2008103060085A CN101430947B (en) | 2008-12-05 | 2008-12-05 | Corrugated metal sheath inorganic mineral insulation cable and method for producing the same |
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| CN101430947A true CN101430947A (en) | 2009-05-13 |
| CN101430947B CN101430947B (en) | 2011-01-26 |
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| CN101894615A (en) * | 2010-07-16 | 2010-11-24 | 曹洪波 | High-temperature refractory shielded cable |
| CN102543293A (en) * | 2011-12-08 | 2012-07-04 | 上海摩恩电气股份有限公司 | Great-length moisture-proof fireproof flexible cable |
| CN102842371A (en) * | 2012-09-21 | 2012-12-26 | 江苏宝安电缆有限公司 | Flexible fireproof cable with metallic sheath inorganic mineral insulating layer |
| CN102855987A (en) * | 2012-09-21 | 2013-01-02 | 江苏宝安电缆有限公司 | High-performance inorganic-mineral insulating flexible fireproof cable with metal sheath |
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| CN105655038A (en) * | 2016-04-08 | 2016-06-08 | 长城电缆有限公司 | Fireproof cable and production process thereof |
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| CN107017040A (en) * | 2017-05-17 | 2017-08-04 | 无锡市新阳光电缆有限公司 | A kind of inorganic mineral insulation protective metal shell fire-proof and water-proof cable |
| CN107331453A (en) * | 2017-06-22 | 2017-11-07 | 安徽电缆股份有限公司 | Novel inorganic compound insulation fireproof cable |
| CN108133773A (en) * | 2017-12-31 | 2018-06-08 | 无锡江南电缆有限公司 | A kind of five core composite fire-proof flat cables |
| CN111128449A (en) * | 2019-11-11 | 2020-05-08 | 重庆泰山电缆有限公司 | Built-in optical fiber low-voltage cable and manufacturing method thereof |
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| CN101430947B (en) | 2011-01-26 |
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