CN203787175U - Single-core fireproof cable - Google Patents
Single-core fireproof cable Download PDFInfo
- Publication number
- CN203787175U CN203787175U CN201420092651.3U CN201420092651U CN203787175U CN 203787175 U CN203787175 U CN 203787175U CN 201420092651 U CN201420092651 U CN 201420092651U CN 203787175 U CN203787175 U CN 203787175U
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- layer
- fire
- cable
- fireproof
- core
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Abstract
The utility model discloses a single-core fireproof cable. The single-core fireproof cable comprises a conductor positioned in the center of the cable and an insulating layer extruded outside the conductor, an inner shielding layer and an outer shielding layer are extruded outside the insulating layer, the outside of the outer shielding layer is extruded with a fireproof wrapping tape layer and a lining layer in sequence, the outside of the lining layer is wrapped by an armored steel strip layer, the outside of the armored steel strip layer is extruded with a fireproof separating layer and a fireproof protection layer in sequence, and the outermost layer of a cable core is extruded with a sheath layer. According to the single-core fireproof cable, a ceramic silicone rubber material structure is employed as the core fireproof layer, the fireproof separating layer serves as an auxiliary layer, substantial fireproof effect and high temperature resistance are provided, mechanical change and electrical property change of the inner structure of the cable are effectively prevented, and the single-core fireproof cable is also advantaged by no toxic, no taste, high and low temperature resistance, ozone and aging resistance, weather and aging resistance, excellent electrical insulation performance and the like.
Description
Technical field
The utility model relates to power cable field, specifically a kind of single core fire-resisting cable.
Background technology
In high level and the medium numerous places of high-rise building, large-scale public place of entertainment, large-scale industrial and mineral, enterprise and underground works, cable cluster laying often, once breaking out of fire, fire will prolong along cable place combustion and spread to other departments and floor.According to fire department, add up, in Urban Fires, wherein more than 2/3 because causing that cable fire spreads, electrical equipment fault or cable traffic overload cause, in while many fire in the past, what cause personal life danger and " secondary harm " is mainly often acid gas and the toxic gas discharging after cable fire.Fireproofing of cable technology more and more causes people's concern, and becomes an important development direction of line cable industry.
Traditional fire-resisting cable is mounted in copper pipe, fills high temperature resistant solid material between copper pipe and cable, needs solid material pad device, vertical bag equipment and welding equipment etc. in production and manufacture process.Material and facility cost of investment is very high, thereby it is many that manufacturing cost has been increased.In addition, because high temperature resistant protective sleeve is copper pipe structure, filling be solid material, so Cable Bending Radius is seldom, to user, bring many inconvenience of installing.
Utility model content
Technical problem to be solved in the utility model is to provide single core fire-resisting cable of a kind of nontoxic, tasteless, high-low temperature resistant, resistance to ozone aging, weather-proof aging, good electrical insulation capability and mechanical performance.
A kind of single core fire-resisting cable described in the utility model; comprise the conductor that is positioned at cable center; be extruded in the insulating barrier outside conductor; insulating barrier extrudes inside and outside screen outward; outer shielding layer extrudes fire-resistant wrapping tape layer and inner covering outward successively; the outer wrapped armouring tape layer of inner covering, armouring tape layer extrudes fire-resistant separator and refractory protection outward more successively, and cable core outermost layer extrudes restrictive coating.
Further improve the screen that described internal shield and outer shielding layer all adopt zinc-plated soft proof copper-wire braided to form.
Further improve the metallic film refuge floor that described fire-resistant separator adopts the fire-retardant green material of expansion type low-smoke halogen-free or adopts the vertical bag of metal material to form.
Further improve, described refractory protection adopts ceramic silicon elastomeric material layer.
Further improve the PE restrictive coating that described restrictive coating can adopt PE material to make.
The beneficial effects of the utility model are:
1, it has possessed the good fundamental characteristics of silicon rubber elastic to the refractory protection that employing ceramic silicon elastomeric material is made at normal temperatures; there is nontoxic, tasteless, high-low temperature resistant, resistance to ozone aging, weather-proof aging, good electrical insulation capability; also possessed the good processing characteristics of common high temperature silicon rubber, at 40 degrees below zero, to 200 degree left and right above freezing, can keep flexible cable state.At flame, attack; temperature reaches 400 degree when above; can be converted to by original soft condition rigid sponge ceramic body; the inner hole that produces of refractory protection 3 after hardening; be conducive to insulation; sponge ceramic body has the significantly fire-resistant effect with intercepting high temperature like this, thereby effectively protects the internal structure of cable that machinery variation and electrical property variation do not occur.
2, adopt inside and outside double layer screen layer structure, can guarantee under the prerequisite of cable core flexibility and mechanical strength, make the shielding of cable core, anti-tampering better effects if.
3, adopt fire-resistant insulation layer structure, further make insulating barrier and conductor thread core structure in refractory protection the variation of mechanical performance and electrical property can not occur, thereby further guarantee that the utility model can normal power supply and communication when burning.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1; described a kind of single core fire-resisting cable of the present utility model; comprise the conductor 1 that is positioned at cable center; be extruded in the insulating barrier 2 outside conductor 1, outside insulating barrier 2, extrude inside and outside screen 3,4; outer fire-resistant wrapping tape layer 5 and the inner covering 6 of extruding successively of outer shielding layer 4; the outer wrapped armouring tape layer 7 of inner covering 6, armouring tape layer 7 is outer extrudes fire-resistant separator 8 and refractory protection 9 more successively, and cable core outermost layer extrudes restrictive coating 10.
The metallic film refuge floor that described fire-resistant separator 8 adopts the fire-retardant green material of expansion type low-smoke halogen-free or adopts the vertical bag of metal material to form; being provided with the insulating barrier and the conductor structure that further make in refractory protection and the variation of mechanical performance and electrical property can not occurring of fire-resistant separator 8, thus further guarantee that the utility model can normal power supply and communication when burning.
Described refractory protection 10 adopts ceramic silicon elastomeric material to make; it has possessed the good fundamental characteristics of silicon rubber elastic at normal temperatures; there is nontoxic, tasteless, high-low temperature resistant, resistance to ozone aging, weather-proof aging, good electrical insulation capability; also possessed the good processing characteristics of common high temperature silicon rubber, at 40 degrees below zero, to 200 degree left and right above freezing, can keep flexible cable state.At flame, attack; temperature reaches 400 degree when above; can be converted to by original soft condition rigid sponge ceramic body; the inner hole that produces of refractory protection 3 after hardening; be conducive to insulation; sponge ceramic body has the significantly fire-resistant effect with intercepting high temperature like this, thereby effectively protects the internal structure of cable that machinery variation and electrical property variation do not occur.
The utility model provides a kind of single core fire-resisting cable version and implementation method; the above is only preferred implementation method of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model principle; can also make some improvement, these improvement also should be considered as protection range of the present utility model.
Claims (5)
1. a single core fire-resisting cable; it is characterized in that: comprise the conductor (1) that is positioned at cable center; be extruded in the outer insulating barrier (2) of conductor (1); outside insulating barrier (2), extrude inside and outside screen (3; 4); outer fire-resistant wrapping tape layer (5) and the inner covering (6) of extruding successively of outer shielding layer (4); the outer wrapped armouring tape layer (7) of inner covering (6); armouring tape layer (7) is outer extrudes fire-resistant separator (8) and refractory protection (9) more successively, and cable core outermost layer extrudes restrictive coating (10).
2. single core fire-resisting cable according to claim 1, is characterized in that: the screen that described internal shield (3) and outer shielding layer (4) all adopt zinc-plated soft proof copper-wire braided to form.
3. single core fire-resisting cable according to claim 1, is characterized in that: the metallic film refuge floor that described fire-resistant separator (8) adopts the fire-retardant green material of expansion type low-smoke halogen-free or adopts the vertical bag of metal material to form.
4. single core fire-resisting cable according to claim 1, is characterized in that: described refractory protection (9) adopts ceramic silicon elastomeric material layer.
5. single core fire-resisting cable according to claim 1, is characterized in that: the PE restrictive coating that described restrictive coating (10) can adopt PE material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420092651.3U CN203787175U (en) | 2014-03-03 | 2014-03-03 | Single-core fireproof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420092651.3U CN203787175U (en) | 2014-03-03 | 2014-03-03 | Single-core fireproof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203787175U true CN203787175U (en) | 2014-08-20 |
Family
ID=51323336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420092651.3U Expired - Fee Related CN203787175U (en) | 2014-03-03 | 2014-03-03 | Single-core fireproof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203787175U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903769A (en) * | 2014-03-03 | 2014-07-02 | 江苏珠影特种电缆有限公司 | Single-core fire resistant cable |
-
2014
- 2014-03-03 CN CN201420092651.3U patent/CN203787175U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903769A (en) * | 2014-03-03 | 2014-07-02 | 江苏珠影特种电缆有限公司 | Single-core fire resistant cable |
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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 |
Granted publication date: 20140820 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |