CN209691443U - A kind of flexible mineral fireproof cable - Google Patents
A kind of flexible mineral fireproof cable Download PDFInfo
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- CN209691443U CN209691443U CN201920579297.XU CN201920579297U CN209691443U CN 209691443 U CN209691443 U CN 209691443U CN 201920579297 U CN201920579297 U CN 201920579297U CN 209691443 U CN209691443 U CN 209691443U
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- fire
- proof mud
- cable
- flexible mineral
- band
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Abstract
The utility model discloses a kind of flexible mineral fireproof cables, including cable core, the external cladding of cable core is provided with stranding band, the external cladding of stranding band is provided with fire-proof mud gear fire bed, the external cladding of fire-proof mud gear fire bed is provided with oversheath, feature is that a protective metal shell is provided between fire-proof mud gear fire bed and oversheath, and the outside of fire-proof mud gear fire bed is arranged in protective metal shell cladding, and oversheath coats the outside that protective metal shell is arranged in.Advantage is to keep off between fire bed and oversheath that a protective metal shell is arranged in fire-proof mud, and structure is simple, and the shock resistance and intensity of cable can be effectively promoted by the protective metal shell, improves the bending property of cable entirety, can completely cut off external flame and cause to damage to cable inside.
Description
Technical field
The utility model relates to a kind of cables, more particularly, to a kind of flexible mineral fireproof cable.
Background technique
With urbanization process accelerated development, attention rate sustainable growth of the people to safety and environmental protection, the Fire Department of Ministry of Public Security
It is statisticallyd analyze also for fire cause, the results show that electrical fire accounting in whole fire causes is more than 30%, sternly
Threatened the safety of life and property of people again, how to reduce occurrence index become wires and cables industry needs pay close attention to
A problem.
Generally directed to place, the fire-proof and explosion-proof etch-proof place of needs, public photograph for being necessary to ensure that the person and property safety
The important pivots engineering places such as bright and power supply system, industrial system, nuclear facilities, military installations, it is necessary to select a kind of both soft
Bending resistance again fire protection flame retarding, continuous length is long, manufacturing cost is low, installation is laid with the fire prevention of simple and easy, low-carbon environment-friendly flexible mineral
Cable.Current existing flexible mineral fireproof cable haves the defects that certain in shock resistance, it is difficult to bear fire
The complicated states such as water impact and collision are born simultaneously, to be difficult to make the safety of life and property of the people in the case of fire
Preferably guaranteed.
Summary of the invention
Simple, shock resistance that the technical problem to be solved by the utility model is to provide a kind of structures and intensity are preferable
Flexible mineral fireproof cable.
Technical solution adopted by the utility model to solve the above technical problems is as follows:
The external cladding of a kind of flexible mineral fireproof cable, including cable core, the cable core is provided with stranding band, described
The external cladding of stranding band be provided with fire-proof mud gear fire bed, the external cladding of the fire-proof mud gear fire bed is provided with outer shield
Set, is provided with a protective metal shell between the fire-proof mud gear fire bed and the oversheath, the protective metal shell cladding is set
It sets in the outside of the fire-proof mud gear fire bed, the outside of the protective metal shell is arranged in the oversheath cladding.
The protective metal shell is the copper sheath of embossing.The fusing point of copper meets scene of fire applied at elevated temperature up to 1083 DEG C
It is required that meanwhile, powerful shock resistance is provided for cable and waterproof and dampproof performance pricks line using the copper sheath of embossing
Depth and pitch can be selected according to the outside diameter of cable, be ensure that cable has excellent bending property, are easily installed and lay,
Substantially increase the construction speed of product.
It is provided with fire prevention band between the fire-proof mud gear fire bed and the protective metal shell, the fire prevention band is
Cladding is wound around the ceramic silicone band outside the fire-proof mud gear fire bed.By fire-proof mud keep off fire bed and protective metal shell it
Between setting fire prevention band, for further enhancing entire fireproofing of cable performance and fire resistance rating, and the fire prevention band is using pottery
Porcelain SiClx adhesive tape, under high temperature, which can sinter the protective layer of hard into, to play effectively isolation external flame
With the effect of high temperature, while can effectively avoid for form fire-proof mud gear fire bed fire-proof mud be hit vibration be scattered,
So that the structure of entire cable is more stable, fire protecting performance is more superior.
The cable core includes at least one insulated wire cores, and the insulated wire cores include conductor, outside the conductor
Portion's cladding is provided with insulating layer, and the external cladding of the insulating layer is provided with phase-splitting insulation layer.Insulating layer is exhausted for conductor
Edge, phase-splitting insulation layer are used to prevent external moisture from entering to impact the insulation performance of cable master core.
The conductor is the twisted copper conductor or aluminium conductor pressed.
The insulating layer is laminated at Mica tape layer and 2 layers of ceramic silicone band by set gradually from inside to outside 6
Wrapping layer is constituted.The structure designs so that the temperature resistant grade of the cable can be promoted to 1300 DEG C or more, so that cable entirety is resistance to
Fiery performance is more superior, and ceramic silicone band is arranged under outermost layer, high temperature, which can sinter hard into
Protective layer can not only play the role of effectively completely cutting off external flame and high temperature, while can effectively avoid mica tape because being rushed
It hits vibration and leads to the case where falling off, so that the structure of entire cable is more stable, fire protecting performance is more superior.
The phase-splitting insulation layer is extruded by polyethylene.
The insulated wire cores, which are that insulated wire cores described in four, four are twisted, forms the cable core, the stranding
The cable core stranding is overmolding to completely circular structure, existing seam between the stranding band and the insulated wire cores by band
Fire-proof mud is filled in gap.Fire-proof mud is filled in gap, so that this fireproofing of cable performance is more preferably.
The stranding band uses netted glass fiber tape.Convenient for the filling of fire-proof mud.
At least two multimode temperature-measuring optical fibers are provided in the fire-proof mud gear fire bed or the fire-proof mud.In cable
Portion is added to multimode temperature-measuring optical fiber, and when fire occurs, the temperature of initiation, which increases, to trigger alarm system by the temperature-measuring optical fiber, from
And improve early warning and the efficiency withdrawn.
The oversheath is low-smoke halogen-free flame retardant oversheath.The flue gas concentration and corrosivity gas when fire can be reduced
Body content.
It is arranged one compared with the prior art, the advantages of the utility model are: keeping off between fire bed and oversheath in fire-proof mud
Protective metal shell, structure is simple, and the shock resistance and intensity of cable can be effectively promoted by the protective metal shell, and it is whole to improve cable
Bending property, external flame can be completely cut off, cable inside is caused to damage.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the utility model embodiment one；
Fig. 2 is the schematic cross-sectional view of the utility model embodiment two；
Fig. 3 is the structural schematic diagram that fire prevention band and outer cover are matched with the protective metal shell of embossing in the utility model.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
Embodiment one: as shown in Figure 1, Figure 3, a kind of flexible mineral fireproof cable, including cable core, the external cladding of cable core are set
It is equipped with stranding band 1, the external cladding of stranding band 1 is provided with fire-proof mud gear fire bed 2, and fire-proof mud keeps off the external cladding of fire bed 2
It is provided with oversheath 3, a protective metal shell 4 is provided between fire-proof mud gear fire bed 2 and oversheath 3, the cladding setting of protective metal shell 4 exists
Fire-proof mud keeps off the outside of fire bed 2, and oversheath 3 coats the outside that protective metal shell 4 is arranged in.
In this particular embodiment, protective metal shell 4 is the copper sheath of embossing.
In this particular embodiment, fire prevention band 5 is provided between fire-proof mud gear fire bed 2 and protective metal shell 4, band of preventing fires
5 be the ceramic silicone band that cladding is wound around outside fire-proof mud gear fire bed 2.
In this particular embodiment, cable core includes at least one insulated wire cores, and insulated wire cores include conductor 101, conductor 101
External cladding be provided with insulating layer 102, the external cladding of the insulating layer 102 is provided with phase-splitting insulation layer 103.
In this particular embodiment, conductor 101 is the twisted copper conductor 101 or aluminium conductor 101 pressed.
In this particular embodiment, insulating layer 102 is laminated at Mica tape layer and 2 by set gradually from inside to outside 6
Layer ceramic silicone band wrapping layer is constituted.
In this particular embodiment, phase-splitting insulation layer 103 is extruded by polyethylene.
In this particular embodiment, insulated wire cores are four, and four insulated wire cores are twisted to form cable core, and stranding band 1 will
Cable core stranding is overmolding to completely circular structure, is filled with fire-proof mud 6 between stranding band 1 and insulated wire cores in existing gap.
In this particular embodiment, stranding band 1 uses netted glass fiber tape.
In this particular embodiment, at least two multimode temperature-measuring optical fibers 7 are provided in fire-proof mud gear fire bed 2.
In this particular embodiment, oversheath 3 is low-smoke halogen-free flame retardant oversheath.
Embodiment two: other parts are the same as example 1, the difference is that being provided at least two in fire-proof mud 6
Multimode temperature-measuring optical fiber 7, as shown in Figure 2.
Claims (10)
1. the external cladding of a kind of flexible mineral fireproof cable, including cable core, the cable core is provided with stranding band, described
The external cladding of stranding band is provided with fire-proof mud gear fire bed, and the external cladding of the fire-proof mud gear fire bed is provided with outer shield
Set, it is characterised in that be provided with a protective metal shell, the metal between the fire-proof mud gear fire bed and the oversheath
The outside of the fire-proof mud gear fire bed is arranged in sheath cladding, and the protective metal shell is arranged in the oversheath cladding
It is external.
2. a kind of flexible mineral fireproof cable as described in claim 1, it is characterised in that the protective metal shell is embossing
Copper sheath.
3. a kind of flexible mineral fireproof cable as described in claim 1, it is characterised in that the fire-proof mud gear fire bed and institute
Fire prevention band is provided between the protective metal shell stated, the fire prevention band is that cladding is wound around outside the fire-proof mud gear fire bed
The ceramic silicone band in portion.
4. a kind of flexible mineral fireproof cable as described in claim 1, it is characterised in that the cable core includes at least one
Insulated wire cores, the insulated wire cores include conductor, and the external cladding of the conductor is provided with insulating layer, the insulating layer
External cladding be provided with phase-splitting insulation layer.
5. a kind of flexible mineral fireproof cable as claimed in claim 4, it is characterised in that the conductor is twisted to press
Copper conductor or aluminium conductor.
6. a kind of flexible mineral fireproof cable as claimed in claim 4, it is characterised in that the insulating layer is by from inside to outside
6 set gradually are laminated to be constituted at Mica tape layer and 2 layers of ceramic silicone band wrapping layer.
7. a kind of flexible mineral fireproof cable as claimed in claim 4, it is characterised in that the phase-splitting insulation layer is by poly- second
Alkene extrudes.
8. a kind of flexible mineral fireproof cable as claimed in claim 4, it is characterised in that the insulated wire cores are four, four
Insulated wire cores described in root are twisted to form the cable core, and the cable core stranding is overmolding to full circle knot by the stranding band
Structure is filled with fire-proof mud in existing gap between the stranding band and the insulated wire cores.
9. a kind of flexible mineral fireproof cable as claimed in claim 8, it is characterised in that the stranding band is using netted
Glass fiber tape.
10. a kind of flexible mineral fireproof cable as claimed in claim 4, it is characterised in that the fire-proof mud gear fire bed or institute
At least two multimode temperature-measuring optical fibers are provided in the fire-proof mud stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920579297.XU CN209691443U (en) | 2019-04-25 | 2019-04-25 | A kind of flexible mineral fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920579297.XU CN209691443U (en) | 2019-04-25 | 2019-04-25 | A kind of flexible mineral fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209691443U true CN209691443U (en) | 2019-11-26 |
Family
ID=68608237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920579297.XU Active CN209691443U (en) | 2019-04-25 | 2019-04-25 | A kind of flexible mineral fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209691443U (en) |
-
2019
- 2019-04-25 CN CN201920579297.XU patent/CN209691443U/en active Active
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