CN209691469U - Fire-resisting cable is pressed in one kind - Google Patents
Fire-resisting cable is pressed in one kind Download PDFInfo
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- CN209691469U CN209691469U CN201920580246.9U CN201920580246U CN209691469U CN 209691469 U CN209691469 U CN 209691469U CN 201920580246 U CN201920580246 U CN 201920580246U CN 209691469 U CN209691469 U CN 209691469U
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Abstract
The utility model discloses press fire-resisting cable in one kind, feature be include 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, cable core includes at least one insulated wire cores, the external cladding of insulated wire cores is provided with metal screen layer, the external cladding of metal screen layer is provided with split-phase isolation fireprotection layer, and split-phase isolation fireprotection layer is the ceramic silicone band that cladding is wound around outside metal screen layer.Advantage is to coat a split-phase separation layer in the external of insulated wire cores; independent isolating is carried out to core by the split-phase separation layer; and the split-phase separation layer is wrapped using ceramic silicone band; it is sinterable at high temperature to form hard protection shell; high temperature when fire is avoided to impact insulated wire cores; it is matched with fire-proof mud gear fire bed, forms the middle pressure fire-resisting cable that an isolation effect is obvious and flameproof effect is good.
Description
Technical field
The utility model relates to a kind of cable, more particularly, to pressing fire-resisting cable in one kind.
Background technique
With the process of scientific and technological progress and urbanization, the whole nation emerges numerous especially big cities and towns, skyscraper, subway, power generation
The intermediate distribution system of the important places such as factory and nuclear power station and tunnel proposes the safety under the conditions of cable fire higher
Requirement, people increasingly improve the demand of building fire protection and electric fireproof.Midium voltage cable occupies important in electric system
Position, usually multiple systems and terminal power supply, and midium voltage cable laying mostly with other cables share laying channel, once hair
It lights a fire calamity, will affect multidisciplinary power demands, seriously affect normal production and life, therefore middle pressure fire-resisting cable comes into being,
And the demand of every profession and trade centering pressure fire-resisting cable is continuously increased.Midium voltage cable must have outside because of voltage class height, conductor for equal
Change the semi-conductive layer of electric field, therefore generallys use the three-layer co-extruded production work of inner shield, insulating layer, external shield in process of production
Skill, so that fireprotection layer can not be coated outside conductor, therefore middle pressure fire-resisting cable existing at present is mainly using the think of of isolation fire protection design
Road is mostly used in bands such as the wrapped mica tape in the outside of cable core, silicone bands, and isolation effect is unobvious, causes flameproof effect bad.
Summary of the invention
Obvious, the preferable middle pressure of flameproof effect that the technical problem to be solved by the utility model is to provide a kind of isolation effects
Fire-resisting cable.
Technical solution adopted by the utility model to solve the above technical problems is as follows:
Press fire-resisting cable, including cable core in one kind, the external cladding of the cable core is provided with stranding band, it is described at
The external cladding of cable 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 oversheath,
The cable core includes at least one insulated wire cores, and the external cladding of the insulated wire cores is provided with metal screen layer, described
The external cladding of metal screen layer be provided with split-phase isolation fireprotection layer, the split-phase isolation fireprotection layer is wound around institute for cladding
Ceramic silicone band outside the metal screen layer stated.
The insulated wire cores include conductor, and the outside of the conductor is successively extruded in three-layer co-extruded mode to be provided with
There are conductor shield, insulating layer and insulation screen, the insulation screen is arranged in the metal screen layer cladding
It is external.
The conductor is copper conductor or aluminium conductor.
The metal screen layer is copper strips or copper wire.
Armor is provided between the fire-proof mud gear fire bed and the oversheath, the armor coats setting
In the outside of the fire-proof mud gear fire bed, the outside of fire-proof mud gear fire bed is arranged in the oversheath cladding.In fire-proof mud
Armor is set between gear fire bed and oversheath, is used to improve the impact strength of cable by armor, for protecting cable
In the scene of a fire from impacting or shaking, to can effectively avoid the fragmentation of fire-proof mud.
The armor is aluminium alloy lock armo.Armor uses aluminium alloy lock armo, so that entire cable
Impact strength is more preferable.
Cladding is provided with the first enhancing fireprotection layer between the described fire-proof mud gear fire bed and the armor, and described the
One enhancing fireprotection layer is the ceramic silicone band that cladding is wound around outside the fire-proof mud gear fire bed, the armor cladding
The outside of the first enhancing fireprotection layer is set.Increased by keeping off cladding setting first between fire bed and armor in fire-proof mud
Strong fireprotection layer, for enhancing entire fireproofing of cable performance, and the enhancing fireprotection layer is wrapped using ceramic silicone band, high temperature
Under, which can sinter the protective layer of hard into, to play the role of effectively completely cutting off external flame and high temperature.
Cladding is provided with the second enhancing fireprotection layer, second enhancing between the armor and the oversheath
Fireprotection layer is the ceramic silicone band that cladding is wound around outside the armor, and the oversheath cladding is arranged in described
The outside of second enhancing fireprotection layer.By coating setting the second enhancing fireprotection layer between armor and oversheath, for enhancing
Entire fireproofing of cable performance and fire resistance rating, and the enhancing fireprotection layer is wrapped using ceramic silicone band, under high temperature, the ceramics
SiClx adhesive tape can sinter the protective layer of hard into, to play the role of effectively completely cutting off external flame and high temperature, with the first enhancing
Fireprotection layer cooperatively forms the double-deck fire lagging, so that entire fireproofing of cable performance is more superior.
The insulated wire cores are one.
The insulated wire cores, which are that insulated wire cores described in three, three are twisted, forms the cable core.
The cable core stranding is overmolding to completely circular structure by the stranding band, the stranding band with it is described exhausted
Fire-proof mud is filled between edge core in existing gap.Fire-proof mud is filled in the gap of cable core, so that this cable is anti-
Fiery performance is more preferably.
The stranding band fiberglass reticular band wrapped using gap.The stranding band glass wrapped using gap
Fibrous web-like band, convenient for the filling of fire-proof mud.
A multimode temperature-measuring optical fiber is provided in the cable core.It is added to multimode temperature-measuring optical fiber inside cable, fire occurs
When calamity, the temperature of initiation, which increases, to trigger alarm system by the temperature-measuring optical fiber, thus the efficiency for improving early warning and withdrawing.
The oversheath is low-smoke halogen-free flame retardant oversheath.The flue gas concentration and corrosivity gas when fire can be reduced
Body content.
Compared with the prior art, the advantages of the utility model are: a split-phase separation layer is coated in the external of insulated wire cores,
Independent isolating is carried out to core by the split-phase separation layer, and the split-phase separation layer is wrapped using ceramic silicone band, in high temperature
Under it is sinterable form hard protection shell, avoid high temperature when fire from impacting insulated wire cores, keep off fire bed with fire-proof mud
It matches, forms the middle pressure fire-resisting cable that an isolation effect is obvious and flameproof effect is good.
Detailed description of the invention
Fig. 1 is the schematic cross-sectional view of the utility model embodiment one.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
Embodiment one: as shown in Figure 1, pressing fire-resisting cable in one kind, including cable core, the external cladding of cable core is provided with stranding
Band 1, the external cladding of stranding band 1 are provided with fire-proof mud gear fire bed 2, and the external cladding of fire-proof mud gear fire bed 2 is provided with outer
Sheath 3, cable core are formed by three insulated wire cores are twisted, and the external cladding of insulated wire cores is provided with metal screen layer 4, metallic shield
The external cladding of layer 4 is provided with split-phase isolation fireprotection layer 5, and split-phase isolation fireprotection layer 5 is that cladding is wound around outside metal screen layer 4
Ceramic silicone band.
In this particular embodiment, cable core stranding is overmolding to completely circular structure, stranding band 1 and insulated wire by stranding band 1
Fire-proof mud 6 is filled between core in existing gap.
In this particular embodiment, the fiberglass reticular band wrapped using gap of stranding band 1.
In this particular embodiment, insulated wire cores include conductor 101, the outside of conductor 101 with three-layer co-extruded mode according to
Secondary extrude has been provided with conductor shield 102, insulating layer 103 and insulation screen 104, and the cladding of metal screen layer 4 is arranged exhausted
The outside of edge shielded layer 104.
In this particular embodiment, conductor 101 is copper conductor or aluminium conductor.
In this particular embodiment, metal screen layer 4 is copper strips or copper wire.
In this particular embodiment, armor 7 is provided between fire-proof mud gear fire bed 2 and oversheath 3, armor 7 coats
The outside of fire-proof mud gear fire bed 2 is set, and oversheath 3 coats the outside that fire-proof mud gear fire bed 2 is arranged in.
In this particular embodiment, armor 7 is aluminium alloy lock armo.
In this particular embodiment, cladding is provided with the first enhancing fireprotection layer 8 between fire-proof mud gear fire bed 2 and armor 7,
First enhancing fireprotection layer 8 is the ceramic silicone band that cladding is wound around outside fire-proof mud gear fire bed 2, and the cladding setting of armor 7 exists
The outside of first enhancing fireprotection layer 8.
In this particular embodiment, cladding is provided with the second enhancing fireprotection layer 9 between armor 7 and oversheath 3, and second increases
Strong fireprotection layer 9 is the ceramic silicone band that cladding is wound around outside armor 7, and the setting of the cladding of oversheath 3 is in the second enhancing fire prevention
The outside of layer 9.
In this particular embodiment, a multimode temperature-measuring optical fiber 10 is provided in cable core.
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 insulated wire cores are one.
Claims (10)
1. pressing fire-resisting cable in one kind, it is characterised in that including cable core, the external cladding of the cable core is provided with stranding band,
The external cladding of the 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
Oversheath, the cable core include at least one insulated wire cores, and the external cladding of the insulated wire cores is provided with metallic shield
Layer, the external cladding of the metal screen layer are provided with split-phase isolation fireprotection layer, and the split-phase isolation fireprotection layer is cladding
The ceramic silicone band being wound around outside the metal screen layer.
2. pressing fire-resisting cable in one kind as described in claim 1, it is characterised in that the insulated wire cores include conductor, described
The outside of conductor successively extruded in three-layer co-extruded mode and be provided with conductor shield, insulating layer and insulation screen, institute
The outside of the insulation screen is arranged in the metal screen layer cladding stated.
3. pressing fire-resisting cable in one kind as claimed in claim 2, it is characterised in that the conductor is copper conductor or aluminium conductor.
4. pressing fire-resisting cable in one kind as described in claim 1, it is characterised in that the fire-proof mud gear fire bed and described
Armor is provided between oversheath, the outside of the fire-proof mud gear fire bed is arranged in the armor cladding, described
The outside of fire-proof mud gear fire bed is arranged in oversheath cladding.
5. pressing fire-resisting cable in one kind as claimed in claim 4, it is characterised in that the fire-proof mud gear fire bed and described
Cladding is provided with the first enhancing fireprotection layer between armor, and the first enhancing fireprotection layer is that cladding is wound around the fire prevention
Mud keeps off the ceramic silicone band outside fire bed, and the outside of the first enhancing fireprotection layer is arranged in the armor cladding.
6. pressing fire-resisting cable in one kind as claimed in claim 5, it is characterised in that the armor and the oversheath
Between cladding be provided with the second enhancing fireprotection layer, the second enhancing fireprotection layer be outside the armor described in cladding is wound around
Ceramic silicone band, the outside of the second enhancing fireprotection layer is arranged in the described oversheath cladding.
7. pressing fire-resisting cable in one kind as described in claim 1, it is characterised in that the insulated wire cores are one.
8. pressing fire-resisting cable in one kind as described in claim 1, it is characterised in that the insulated wire cores are three, three institutes
The insulated wire cores stated are twisted to form the cable core.
9. pressing fire-resisting cable in one kind as claimed in claim 8, it is characterised in that the stranding band is by the cable core
Stranding is overmolding to completely circular structure, filled with fire prevention in existing gap between the stranding band and the insulated wire cores
Mud.
10. pressing fire-resisting cable in one kind as described in claim 1, it is characterised in that be provided with multimode survey in the cable core
Warm optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920580246.9U CN209691469U (en) | 2019-04-25 | 2019-04-25 | Fire-resisting cable is pressed in one kind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920580246.9U CN209691469U (en) | 2019-04-25 | 2019-04-25 | Fire-resisting cable is pressed in one kind |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209691469U true CN209691469U (en) | 2019-11-26 |
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ID=68608345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920580246.9U Active CN209691469U (en) | 2019-04-25 | 2019-04-25 | Fire-resisting cable is pressed in one kind |
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| CN (1) | CN209691469U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114596998A (en) * | 2022-03-14 | 2022-06-07 | 金龙电缆科技有限公司 | Preparation method of high-flame-retardant fireproof cable |
-
2019
- 2019-04-25 CN CN201920580246.9U patent/CN209691469U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114596998A (en) * | 2022-03-14 | 2022-06-07 | 金龙电缆科技有限公司 | Preparation method of high-flame-retardant fireproof cable |
| CN114596998B (en) * | 2022-03-14 | 2023-12-29 | 金龙电缆科技有限公司 | Preparation method of high-flame-retardance fireproof cable |
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