CN202930100U - Airport terminal medium voltage fireproof cable - Google Patents
Airport terminal medium voltage fireproof cable Download PDFInfo
- Publication number
- CN202930100U CN202930100U CN 201220598320 CN201220598320U CN202930100U CN 202930100 U CN202930100 U CN 202930100U CN 201220598320 CN201220598320 CN 201220598320 CN 201220598320 U CN201220598320 U CN 201220598320U CN 202930100 U CN202930100 U CN 202930100U
- Authority
- CN
- China
- Prior art keywords
- layer
- cable
- fire
- airport building
- building according
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Insulated Conductors (AREA)
Abstract
Provided is an airport terminal medium voltage fireproof cable, comprising at least one insulation core wrapped by an insulation shielding layer and a copper strip shielding layer; the at least one insulation core forms a cable core. The cable core is successively wrapped by an oxygen isolation cooling layer, a thermal insulation layer, a firestop layer and an inflammable oversheath layer; the insulation core is composed of a copper conductor and a conductor shielding layer and an insulating layer wrapping the copper conductor. The airport terminal medium voltage fireproof cable can solve the contradiction problem between electrical property and fireproof characteristic of a medium voltage fireproof cable and possesses excellent electrical performance and good fireproof characteristic.
Description
Technical field
The utility model relates to a kind of fire-resisting cable, especially a kind of airport building with in press fire-resisting cable.
Background technology
Fire-resisting cable has the cable of serviceability under designated state constantly when referring to burn at the burning things which may cause a fire disaster of regulation with under the time.The electric pressure of fireproof power cable is generally at 1 kV and following, and its form mainly contains two kinds.The first is to adopt wrapped fire-resistant isinglass belt on conductor, and mica tape is generally formed by mica paper, alkali-free glass fiber cloth and the manufacturing of silicates adhesive, meets the insoluble molten hard housing of the rear generation of fire, thereby reaches fire-resistant purpose; The second is to adopt copper core copper sheath magnesium oxide insulating cable, and this cable adopts mineral magnesium oxide to do insulation, and when catching fire, magnesium oxide insulated can not burnt.The distinguishing feature of these two kinds of fire-resisting cables is to coat the inorganic flame retardant coating of one deck in the outside of conductor to reach fire-resistant purpose.And medium and high voltage cable can't adopt above-mentioned structure and method to realize fire-resistant purpose due to the particularity of its performance requirement.
Summary of the invention
Technical problem to be solved in the utility model be to provide a kind of airport building with in press fire-resisting cable, press the contradictory problems between fire-resisting cable electric property and fire-resistance property in can solving, not only have good electric property, also have good fire-resistance property.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of airport building with in press fire-resisting cable, comprise the insulated wire cores that is enclosed with insulation screen and copper strip shielding layer, at least one eradication edge core consists of cable core, and cable core is enclosed with oxygen barrier cooling layer, thermal insulation layer, gear fire bed and nonflammable external sheath layer outward successively.
Insulated wire cores is comprised of conductor shield and the insulating barrier of copper conductor and copper conductor outer wrapping.
Insulating barrier is crosslinked polyetylene insulated layer.
Thermal insulation layer is asbestos layer.
The gear fire bed is strap layer, and strap layer is corrugated metallic sheath.
Nonflammable external sheath layer is the low smoke and zero halogen restrictive coating.
Oxygen barrier cooling layer is preferably the oxygen barrier cooling layer of having mediated magnesium hydroxide or aluminium hydroxide take rubber cement as matrix.
the airport building that the utility model provides with in press fire-resisting cable, adopt the fireproof construction of oxygen barrier cooling layer, thermal insulation layer, the combination of gear fire bed, the gear fire bed plays the fiery effect of gear, thermal insulation layer is comprised of heat-insulating material, stops high temperature to the internal layer transmission, oxygen barrier cooling layer consists of isolation oxygen and reduces temperature, can emit large quantity of moisture under hot conditions, the moisture evaporation can absorb heat in a large number, stop high temperature to be delivered to insulating barrier, isolate simultaneously oxygen, make airborne oxygen can not infiltrate cable insulation, thereby the insulating barrier that reaches insulated wire cores only is heated, oxidation Decomposition effect not, when guaranteeing that fire occurs, by the gear fire bed, thermal insulation layer, the acting in conjunction of oxygen barrier cooling layer, cable works in 90 min of regulation, realize fire-resistant purpose, solved the contradictory problems between middle pressure fire-resisting cable electric property and fire-resistance property, not only has good electric property, also has good fire-resistance property.
Oxygen barrier cooling layer adopts the oxygen barrier cooling layer of having mediated magnesium hydroxide or aluminium hydroxide take rubber cement as matrix, and its fire-retardant cool principle is as follows: the one, absorb the amount of heat in surrounding air when hydroxide is burned, because this reaction is the endothermic reaction; The 2nd, the hydrone that generates also needs to absorb amount of heat in evaporation process, and this has just reduced the temperature of combustion site; The 3rd, produced insoluble not molten metal oxide crust, stoped oxygen to contact with organic.So fire-retardant cooling layer is to adopt heat absorption and the method for oxygen barrier to carry out fire-retardant cooling.
Thermal insulation layer adopts asbestos layer, adopts wrapped form, and its effect of heat insulation is good especially, has guaranteed that outside heat is difficult for being transmitted on the insulating barrier of cable, thereby has protected the insulated wire cores of cable.
The gear fire bed adopts strap layer, adopts the wrinkle sheath form, and the one, metal material can block hot flame and further injure cable; The 3rd, metal has fine, heat conductivility can dispel the heat to surrounding, and the 3rd, metal wrinkled sleeving inner space can play part thermal resistance effect.Metal wrinkled cover improves the cable bend performance well in addition.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples:
Fig. 1 is the structural representation of first embodiment of the utility model, and the quantity of insulated wire cores is three;
Fig. 2 is the structural representation of second embodiment of the utility model, and the quantity of insulated wire cores is one;
Fig. 3 is production technological process of the present utility model.
Embodiment
First embodiment of the present utility model as shown in Figure 1, its structure comprises the insulated wire cores that is enclosed with insulation screen 4 and copper strip shielding layer 5, three thoroughly do away with the edge core consists of cable core, and cable core is enclosed with oxygen barrier cooling layer 6, thermal insulation layer 7, gear fire bed 8 and nonflammable external sheath layer 9 outward successively.
Insulated wire cores is comprised of conductor shield 2 and the insulating barrier 3 of copper conductor 1 and copper conductor 1 outer wrapping.
Insulating barrier 3 is crosslinked polyetylene insulated layer.
Nonflammable external sheath layer 9 is the low smoke and zero halogen restrictive coating.
Oxygen barrier cooling layer 6 is for having mediated the oxygen barrier cooling layer of magnesium hydroxide or aluminium hydroxide take rubber cement as matrix.
Second embodiment of the present utility model consists of except cable core thoroughly does away with the edge core by one as shown in Figure 1, and all the other structures are identical with embodiment.
Process chart of the present utility model is as shown in 2, and the technological process of production is as follows: wire drawing one twisted wire one conductor screen, insulation, insulation shielding three-layer co-extrusion one stranding one extrude the wrapped wrinkle metal level one of oxygen barrier cooling layer one heat insulating belt and extrude oversheath one product inspection.
In the manufacture process of cable, each operation must be carried out in strict accordance with regulation technique and requirement, to guarantee product quality.Its main points are as follows:
1, copper conductor 1 forms (purity of copper 〉=99.97%) by the naked annealed copper wire that meets the GB/T3956 regulation.In the manufacturing engineering of cable conductor, at first make oxygen-free copper bar by the up-drawing method production line of import, by the import big drawing machine drawing single line of continuous annealing.Conductor presses moulding at strand layered processed, has guaranteed the tight and Stability Analysis of Structures of conductor.Press coefficient and be not less than 0.9, conductive surface is bright and clean, without burr, the sharp edge of greasy dirt, not damaged shielding and insulation, without the single line of projection or fracture.
2, extrude crosslinking process
3, conductor shield 2
Extrude semi-conductive layer and should be coated on equably on copper conductor 1, smooth surface is without obvious twisted wire burr, without wedge angle, particle, burn or abrasive vestige.When peeling off conductor screen, semi-conductive layer should not cause having card to stay phenomenon between the conductor strand.
The conductor screen nominal thickness is 0.8 mm, and minimum thickness should be not less than 0.64 mm.
The resistivity of conductor shield 2 is no more than 1000 Europe rice.
4, insulating barrier 3
Insulating barrier 3 adopts cross-linked polyethylene insulating material, and the insulation nominal thickness is 4.5mm, and insulation thickness mean value should be not less than nominal value, and the minimum detect thickness of any point should be not less than 4.2mm, and maximum detect thickness should be not more than 4.8mm.
5, insulation screen 4
The insulation screen 4 crosslinked semi-conductive layer for extruding, semi-conductive layer is coated on insulating surface equably, and the surface should be smooth, without wedge angle, particle, burns or abrasive vestige.
The nominal thickness of insulation screen 4 is: 0.8 mm.Minimum thickness should be not less than 0.64 mm.It is peelable release that insulation screen 4 should be.
6, the copper strip shielding layer 5
The nominal thickness of the single-core cable copper strip shielding layer 5 of first embodiment of the utility model is not less than 0.12mm, the nominal thickness of the three-core cable copper strip shielding layer 5 of second embodiment of the utility model is not less than 0.10mm, and copper strip shielding layer 5 minimum thickness are not less than 90% of nominal value.
Copper strip shielding layer 5 is comprised of the wrapped soft copper band of a ply, and copper strips is wrapped should be smooth, and the on average rate of putting up between copper strips should be no less than the 15%(nominal value), its minimum rate of putting up should be not less than 55%, and without defectives such as crimping, scratches, copper strip joint should be firm, smooth.
7, stranding
The stranding lay ratio is controlled at 25～30, and cable core should be closely and rounding and crooked flexibility after stranding to guarantee cable.During the multicore cable stranding, the asbestos cord Material Filling all should be selected in center and edge, and cable core is tightened with asbestos yarn, and asbestos yarn is overlapping wrapped, and wrapped thickness is 2mm, and Duplication is 10%～30%.Cable shall be rounded up after stranding, without the deep-fried twisted dough sticks phenomenon.
8, extrude oxygen barrier cooling layer 6
Employing extrudes the material of having mediated magnesium hydroxide or aluminium hydroxide take rubber cement as matrix, and the nominal thickness of oxygen barrier cooling layer 6 is 4mm, and its average thickness should be not less than nominal value, and the minimal thickness of any point should be not less than the 85%-0.1 ㎜ of nominal value.Extruding rear outward appearance should smooth, closely knit, rounding.
9, gear fire bed 8
10, extrude nonflammable external sheath layer 9
Adopt the oxygen index of material to be not less than 32 low-smoke halogen-free polyolefin materials, its average thickness should be not less than nominal value, and the minimal thickness of any point should be not less than the 85%-0.1 ㎜ of nominal value.After sheath extruded, outward appearance should smooth, closely knit, rounding.
Claims (8)
- An airport building with in press fire-resisting cable, comprise the insulated wire cores that is enclosed with insulation screen (4) and copper strip shielding layer (5), it is characterized in that: at least one eradication edge core consists of cable core, and cable core is enclosed with oxygen barrier cooling layer (6), thermal insulation layer (7), gear fire bed (8) and nonflammable external sheath layer (9) outward successively.
- Airport building according to claim 1 with in press fire-resisting cable, it is characterized in that: insulated wire cores is comprised of conductor shield (2) and the insulating barrier (3) of copper conductor (1) and copper conductor (1) outer wrapping.
- Airport building according to claim 2 with in press fire-resisting cable, it is characterized in that: insulating barrier (3) is crosslinked polyetylene insulated layer.
- Airport building according to claim 1 and 2 with in press fire-resisting cable, it is characterized in that: thermal insulation layer (7) is asbestos layer.
- Airport building according to claim 1 and 2 with in press fire-resisting cable, it is characterized in that: gear fire bed (8) is for strap layer.
- Airport building according to claim 5 with in press fire-resisting cable, it is characterized in that: strap layer is corrugated metallic sheath.
- Airport building according to claim 1 and 2 with in press fire-resisting cable, it is characterized in that: nonflammable external sheath layer (9) is the low smoke and zero halogen restrictive coating.
- Airport building according to claim 1 and 2 with in press fire-resisting cable, it is characterized in that: oxygen barrier cooling layer (6) is for having mediated the oxygen barrier cooling layer of magnesium hydroxide or aluminium hydroxide take rubber cement as matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220598320 CN202930100U (en) | 2012-11-14 | 2012-11-14 | Airport terminal medium voltage fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220598320 CN202930100U (en) | 2012-11-14 | 2012-11-14 | Airport terminal medium voltage fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202930100U true CN202930100U (en) | 2013-05-08 |
Family
ID=48220037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220598320 Expired - Fee Related CN202930100U (en) | 2012-11-14 | 2012-11-14 | Airport terminal medium voltage fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202930100U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103854782A (en) * | 2014-02-28 | 2014-06-11 | 安徽华联电缆集团有限公司 | Environment-friendly medium-voltage fire-resistant power cable |
| CN104575814A (en) * | 2013-10-12 | 2015-04-29 | 宁夏海洋线缆有限公司 | Crosslinking insulation power cable |
-
2012
- 2012-11-14 CN CN 201220598320 patent/CN202930100U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104575814A (en) * | 2013-10-12 | 2015-04-29 | 宁夏海洋线缆有限公司 | Crosslinking insulation power cable |
| CN103854782A (en) * | 2014-02-28 | 2014-06-11 | 安徽华联电缆集团有限公司 | Environment-friendly medium-voltage fire-resistant power cable |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205282143U (en) | Fire -retardant fireproof cable of flexible inorganic mineral insulation low smoke and zero halogen | |
| CN202796223U (en) | Low-smoke halogen-free high-flame-retardant fire-resistant medium-voltage crosslinked cable | |
| CN202258471U (en) | Environment-friendly fire-proof medium-voltage cable | |
| CN103811118A (en) | Medium voltage fire resistant cable for airport terminal | |
| CN105206346A (en) | Multifunctional fire-resistant environment-friendly audio signal cable and preparation technology thereof | |
| CN105989914B (en) | A kind of environment-friendly type flexible fire-proof cable | |
| CN203706730U (en) | High-flame-retardant low smoke halogen-free medium-voltage fire resisting cable | |
| CN202930100U (en) | Airport terminal medium voltage fireproof cable | |
| CN109461542A (en) | A kind of low-smoke zero-halogen low-toxicity public safety fireproof cable manufacturing method | |
| CN201503723U (en) | Fireproof power cable | |
| CN206293198U (en) | Mesohigh mineral matter fire-retardant fireproof cable | |
| CN205177474U (en) | Fire -resistant power cable of cross -linked insulation | |
| CN110993169A (en) | Fireproof cable and preparation method thereof | |
| CN204102616U (en) | A kind of novel flame-retardant fireproof cable | |
| CN203562234U (en) | Fireproof power cable for large-scale oceangoing vessel | |
| CN206363798U (en) | A kind of fire proof power cable | |
| CN206532614U (en) | Middle pressure optical fiber composite cable is laid after a kind of new light unit | |
| CN206363777U (en) | A kind of environment-friendly type fire resistant flexible midium voltage cable | |
| CN202549472U (en) | Fire-resistant power cable | |
| CN204651023U (en) | The halogen-free flameproof fireproof cable of modified node method | |
| CN106935326A (en) | Multicore cable is pressed in fire prevention | |
| CN208489039U (en) | A kind of tension flame-retardant fire-resistant power cable | |
| CN208689973U (en) | A kind of fire-retardant 1 grade of B1 cable of wrapped metal tape fire lagging | |
| CN207489567U (en) | Multicore cable is pressed in environment-friendly type fire resisting | |
| CN206685190U (en) | A kind of aluminium alloy fire-proof medium-voltage cable |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20161114 |