CN204315278U - The high fire-resistant flexible fire-proof cable of a kind of novel environment friendly high flame retardant - Google Patents
The high fire-resistant flexible fire-proof cable of a kind of novel environment friendly high flame retardant Download PDFInfo
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- CN204315278U CN204315278U CN201420823546.2U CN201420823546U CN204315278U CN 204315278 U CN204315278 U CN 204315278U CN 201420823546 U CN201420823546 U CN 201420823546U CN 204315278 U CN204315278 U CN 204315278U
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Abstract
The high fire-resistant flexible fire-proof cable of a kind of novel environment friendly high flame retardant, belongs to field of cable technology.Comprise cable core and sheath, it is characterized in that, described cable core forms by some cores are stranded, described core is made up of conductor, wrapped flame retardant coating outside conductor, the insulating barrier be extruded in outside flame retardant coating, described cable core is outside equipped with flame-retardant layer, flame-retardant layer arranges the gear fire bed be made up of ceramic macromolecule composite fire silicon rubber outward, and gear fire bed arranges the oxygen barrier layer be made up of inorganic metal hydrate outward, and described sheath is made up of LSOH anti-flaming material and is extruded in oxygen barrier layer skin.The utility model adds various structures on the basis of conventional power cable structure, reduces the damage capability of flame to cable conductor and insulation system as far as possible, strengthens cable anti-external impact ability in case of fire, improve the security and stability of cable.
Description
Technical field
The utility model relates to a kind of structure of cable, and the structure of the high fire-resistant flexible fire-proof cable of especially a kind of novel environment friendly high flame retardant, belongs to field of cable technology.
Background technology
Along with greatly developing of electric power energy, the application of electric energy be performed to ultimate attainment, but things turn into their opposites when they reach the extreme, while electric energy uses, the fire that excessive electricity consumption causes, cable material have brought very large puzzlement to problems such as the pollutions of environment, therefore in recent years, the consciousness of people to safety utilization of electric power, green power utilization is also strengthened gradually, and develops outstanding many safe environment protection types power cable with this.Conventional power cable is when meeting with fire, and flame has very large destructive power, cable security poor stability to cable conductor and insulation system.
Utility model content
The purpose of this utility model is for above-mentioned the deficiencies in the prior art, provides one in the case of fire, can extend the high fire-resistant flexible fire-proof cable of novel environment friendly high flame retardant of the safety of the anti-external impact of conduction time by structural design.
The purpose of this utility model is achieved through the following technical solutions: the high fire-resistant flexible fire-proof cable of a kind of novel environment friendly high flame retardant, comprise cable core and sheath, it is characterized in that, described cable core forms by some cores are stranded, described core is by conductor, wrapped flame retardant coating outside conductor, the insulating barrier be extruded in outside flame retardant coating is formed, described cable core is outside equipped with flame-retardant layer, flame-retardant layer arranges the gear fire bed be made up of ceramic macromolecule composite fire silicon rubber outward, gear fire bed arranges the oxygen barrier layer be made up of inorganic metal hydrate outward, described sheath is made up of LSOH anti-flaming material and is extruded in oxygen barrier layer skin.
Described conductor is by annealed copper wire and aluminum steel or annealed copper wire and aluminium alloy wire is stranded forms.
Described flame retardant coating is inside and outside two layer composite structure, and internal layer is three-in-one band lapping layer, and skin is high flame retardant inorfil band lapping layer.
Described flame-retardant layer is made up of inorganic fibers packed layer and inorfil band lapping layer.
Described conductor is circular.
Described core is three.
The utility model product structure design innovative point: compared with traditional cable increase multilayer flexibility splendid fire-resistant, keep off fiery structure, enhance flame-retardant and the softness of whole cable, and most of material selection is halogen-free environmental shaped material, environmentally safe, meets the demand of Modern human populations to environmental consciousness.Meanwhile, hard housing can be formed after gear fire bed structure meets high-temp combustion, protection circuit can be played not by the effect of stress damage.After tested, the utility model can reach the CWZ highest level required in the A grade standard of GB/T 19666 and Britain BS 6387.
Conductor adopts double-deck fireproof construction outward; wherein three-in-one composite band enhances the insulating capacity under cable high-temperature situation; high flame retardant inorfil band at high temperature resolves into metal oxide and crystallization water; metal oxide forms network structure after decomposing; certain adsorption capacity is had to flue gas; the crystallization water can play the effect reducing body structure surface temperature simultaneously, and the multiple protective of above structure greatly strengthen the refractory ability of cable, the security performance that improve cable line of high degree.
Because the fusing point of aluminium conductor itself is very low, conventional aluminium cable is difficult to the requirement reaching fire-resisting cable, this product adopts multiple layer refractory structure, integrate fire-resistant, gear is fiery, heat insulation structural, give full play to the fire-resistance property of each structure, greatly reduce the damage of outside heat to conductor, the demand of the fire-resisting cable of aluminium core and aluminum alloy conductor cable can be met.
Structurally flexible under ceramic macromolecule composite fire silicon rubber normal temperature state, high resilience, this product uses this material as gear fire bed, and the flexibility of whole cable comparatively like product has had very large lifting, at narrow space, require little the laying environment and also can use of bending radius, cable applicability is wide.
The utility model adds various structures on the basis of conventional power cable structure, reduces the damage capability of flame to cable conductor and insulation system as far as possible, strengthens cable anti-external impact ability in case of fire, improve the security and stability of cable.
Accompanying drawing
Fig. 1 is structural representation of the present utility model;
In figure: 1 conductor, 2 flame retardant coatings, 3 insulating barriers, 4 flame-retardant layers, 5 gear fire bed, 6 oxygen barrier layers, 7 sheaths.
Embodiment
The high fire-resistant flexible fire-proof cable of a kind of novel environment friendly high flame retardant, comprises cable core and sheath, and cable core forms by three cores are stranded.
Core is made up of conductor 1, wrapped flame retardant coating 2 outside conductor, the insulating barrier 3 be extruded in outside flame retardant coating, and conductor is by annealed copper wire and aluminium or annealed copper wire and aluminium alloy wire is stranded forms, and conductor is circular.Flame retardant coating is inside and outside two layer composite structure, and internal layer is three-in-one band lapping layer, and skin is high flame retardant inorfil band lapping layer.
Cable core is outside equipped with flame-retardant layer 4, and flame-retardant layer is made up of inorganic fibers packed layer and inorfil band lapping layer.Flame-retardant layer arranges the gear fire bed 5 be made up of ceramic macromolecule composite fire silicon rubber outward, and gear fire bed arranges the oxygen barrier layer 6 be made up of inorganic metal hydrate outward, and sheath 7 is made up of LSOH anti-flaming material and is extruded in oxygen barrier layer skin.
Conductor adopts the annealed copper wire and aluminum steel or aluminium alloy wire that meet not plating or plating in GB/T 3956.Conductor shape circle is advisable, and is convenient to the enforcement of the wrapped operation in rear road.
Flame retardant coating is two layer composite structure, the three-in-one composite band that the wrapped fire resistance of internal layer is superior, outer wrapped high flame retardant inorfil band.Inorfil band burning carbonization, can form one deck and effectively hinder the isolation strip that oxygen supplies and fuel gas circulates, and reduces outside heat and conducts to inside, slow down the destruction of insulation system.In addition, the three-in-one band structure of internal layer still can play insulating effect when meeting fire burning, ensures that cable is under withstand combustion state, does not puncture in 90min.
Insulating material adopts has the good super clean flexible insulating material of pliability, mechanical strength and electric property.Guarantee the security performance of cable under normal power supply, strengthen the ability of the extraneous stretching of cable opposing, extruding simultaneously.
Flame-retardant layer adopt inorganic fibers fill and inorfil band wrapped.When cable meets with fire, high flame retardant inorfil is filled and band resolves into metal oxide and crystallization water, metal oxide forms network structure after decomposing, certain suction-operated is had to flue gas, the crystallization water of separating out not only plays obvious settlement action to soot, but also there is good endothermic effect, effectively can reduce the temperature on cable fire surface.
Gear fire bed adopts ceramic macromolecule composite fire silicon rubber, and this material is soft elastomer under normal circumstances, not only can improve the service condition of cable, and can ensure the normal use of cable.And once meet with fire, magnetic material in the case of a high temperature, organic substance can be ablated within the extremely short time, and can enter in the course of reaction of ceramic fast, change into hard ceramic-like material, form one good isolation strip, stop that the continuation of flame is corroded, play the well fiery effect of gear, and this gear fire bed has good heat conductivility, what can conduct heat to cable is non-by flame range territory, makes the lifting that the temperature of cable can not be too fast, still can keep normal operating condition when ensureing that cable is disaster-stricken.
Oxygen barrier layer adopts inorganic metal hydrate, because its heat conduction, anti-flammability are very good, the high flame-retardant property of abundant guarantee cable, be crystallization water after high temperature met by this material in cable fire process and resolve into metal oxide, metal oxide is adsorbed on flame retardant coating surface can form cavernous shell, this shell has certain suction-operated to flue gas, and meanwhile, the moisture of precipitation can play the effect of fully lowering the temperature to flame retardant coating.Sheath uses LSOH anti-flaming material to extrude, its production technology outbalance, due to cable laying indoors or outdoor, very important cable stands daylight direct irradiation for a long time, and its oversheath expressing technique is improper, face checking will occur.Meanwhile, because inorganic anti-flaming material is filled in a large number, the machinery of material and processing characteristics are declined to a great extent, to extrusion temperature scope and Spreading requirements higher.We conducted a large amount of engineer testings, determine rational extrusion temperature, and for the smaller situation of material extending, mould is adjusted, achieves the balance of speed of production, presentation quality, mechanical performance and LSOH anti-flaming performance.
Claims (6)
1. the high fire-resistant flexible fire-proof cable of novel environment friendly high flame retardant, comprise cable core and sheath, it is characterized in that, described cable core forms by some cores are stranded, described core is by conductor (1), wrapped flame retardant coating (2) outside conductor, the insulating barrier (3) be extruded in outside flame retardant coating is formed, described cable core is outside equipped with flame-retardant layer (4), flame-retardant layer arranges the gear fire bed (5) be made up of ceramic macromolecule composite fire silicon rubber outward, gear fire bed arranges the oxygen barrier layer (6) be made up of inorganic metal hydrate outward, described sheath (7) is made up of LSOH anti-flaming material and is extruded in oxygen barrier layer skin.
2. the high fire-resistant flexible fire-proof cable of a kind of novel environment friendly high flame retardant according to claim 1, is characterized in that, described conductor is by annealed copper wire and aluminum steel or annealed copper wire and aluminium alloy wire is stranded forms.
3. the high fire-resistant flexible fire-proof cable of a kind of novel environment friendly high flame retardant according to claim 1, it is characterized in that, described flame retardant coating is inside and outside two layer composite structure, and internal layer is three-in-one band lapping layer, and skin is high flame retardant inorfil band lapping layer.
4. the high fire-resistant flexible fire-proof cable of a kind of novel environment friendly high flame retardant according to claim 1, it is characterized in that, described flame-retardant layer is made up of inorganic fibers packed layer and inorfil band lapping layer.
5. the high fire-resistant flexible fire-proof cable of a kind of novel environment friendly high flame retardant according to claim 2, is characterized in that, described conductor is circular.
6. the high fire-resistant flexible fire-proof cable of a kind of novel environment friendly high flame retardant according to claim 1, it is characterized in that, described core is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420823546.2U CN204315278U (en) | 2014-12-23 | 2014-12-23 | The high fire-resistant flexible fire-proof cable of a kind of novel environment friendly high flame retardant |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420823546.2U CN204315278U (en) | 2014-12-23 | 2014-12-23 | The high fire-resistant flexible fire-proof cable of a kind of novel environment friendly high flame retardant |
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| Publication Number | Publication Date |
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| CN204315278U true CN204315278U (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420823546.2U Active CN204315278U (en) | 2014-12-23 | 2014-12-23 | The high fire-resistant flexible fire-proof cable of a kind of novel environment friendly high flame retardant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018040646A1 (en) * | 2016-08-31 | 2018-03-08 | 中天射频电缆有限公司 | Protective sheath and leakage cable using protective sheath |
-
2014
- 2014-12-23 CN CN201420823546.2U patent/CN204315278U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018040646A1 (en) * | 2016-08-31 | 2018-03-08 | 中天射频电缆有限公司 | Protective sheath and leakage cable using protective sheath |
| CN107799858A (en) * | 2016-08-31 | 2018-03-13 | 中天射频电缆有限公司 | Sheath and the leaky cable using the sheath |
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