CN103903769A - Single-core fire resistant cable - Google Patents
Single-core fire resistant cable Download PDFInfo
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- CN103903769A CN103903769A CN201410074173.8A CN201410074173A CN103903769A CN 103903769 A CN103903769 A CN 103903769A CN 201410074173 A CN201410074173 A CN 201410074173A CN 103903769 A CN103903769 A CN 103903769A
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Abstract
The invention discloses a single-core fire resistant cable comprising a conductor located in the center of the cable and an insulating layer, wherein the conductor is wrapped with the insulating layer in an extruded mode. The insulating layer is wrapped with an inner shielding layer and an outer shielding layer in an extruded mode, and the outer shielding layer is sequentially wrapped with a fire resistant tape layer and a liner layer in an extruded mode. The liner layer is wrapped with an armored steel belt layer in a wound mode, the armored steel belt layer is then sequentially wrapped with a fire resistant isolation layer and a fire resistant protection layer in an extruded mode, and the outmost layer of a cable core is wrapped with a protective sleeve layer in an extruded mode. The ceramic silicon rubber material structure serves as a core fire resistant layer, the fire resistant isolation layer serves as an auxiliary layer, and the single-core fire resistant cable has the functions of significant fire resistance and high temperature barrier, so that the structure inside the cable has no mechanical change and electrical performance change; the single-core fire resistant cable has the advantages of being free of poison and odor, resistant to high temperature and low temperature, resistant to ozone aging, weather and aging, excellent in electric insulation performance and the like.
Description
Technical field
The present invention 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, often cable cluster laying, once breaking out of fire, fire will prolong along cable place combustion and spread to other departments and floor.Add up according to fire department, 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 little, bring many inconvenience of installing to user.
Summary of the invention
Technical problem to be solved by this invention 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.
The single core fire-resisting cable of one of the present invention; 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.
Beneficial effect of the present invention is:
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, can keep flexible cable state at 40 degrees below zero to 200 degree left and right above freezing.Attack at flame; temperature reaches 400 degree when above; can be converted to rigid sponge ceramic body by original soft condition; 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 that the variation of mechanical performance and electrical property can not occur, thereby further guarantee that the present invention can normal power supply and communication in the time of burning.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
As shown in Figure 1; described one list core fire-resisting cable of the present invention; 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 the variation of mechanical performance and electrical property can not occur of fire-resistant separator 8, thus further guarantee that the present invention can normal power supply and communication in the time of 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, can keep flexible cable state at 40 degrees below zero to 200 degree left and right above freezing.Attack at flame; temperature reaches 400 degree when above; can be converted to rigid sponge ceramic body by original soft condition; 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 invention provides a kind of single core fire-resisting cable version and implementation method; the above is only preferred implementation method of the present invention; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention; can also make some improvement, these improve and also should be considered as protection scope of the present invention.
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 |
|---|---|---|---|
| CN201410074173.8A CN103903769A (en) | 2014-03-03 | 2014-03-03 | Single-core fire resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410074173.8A CN103903769A (en) | 2014-03-03 | 2014-03-03 | Single-core fire resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103903769A true CN103903769A (en) | 2014-07-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410074173.8A Pending CN103903769A (en) | 2014-03-03 | 2014-03-03 | Single-core fire resistant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103903769A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104361944A (en) * | 2014-11-07 | 2015-02-18 | 江苏远方电缆厂有限公司 | Ceramic fireproof flame-retardant power cable |
| CN105632621A (en) * | 2016-02-03 | 2016-06-01 | 安徽长风电缆集团有限公司 | Waterproof fire-retardant fire-extinguishing caution cable |
| CN109585062A (en) * | 2018-10-24 | 2019-04-05 | 湖北龙腾红旗电缆(集团)有限公司 | Used in nuclear power station three proofings electrical equipment cable |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1074998A2 (en) * | 1999-08-06 | 2001-02-07 | HABIA CABLE GmbH | High-temperature resistant cable and method of making same |
| CN202025562U (en) * | 2011-04-02 | 2011-11-02 | 上海永进电缆(集团)有限公司 | Inflaming retarding and fire-resistant cable without armoring |
| JP2012156113A (en) * | 2011-01-28 | 2012-08-16 | Yazaki Corp | Fire-resistant cable |
| CN102737767A (en) * | 2011-04-02 | 2012-10-17 | 上海永进电缆(集团)有限公司 | Fire-resistant soft ceramic cable |
| EP2434500B1 (en) * | 2010-09-22 | 2013-02-13 | Nexans | Cable line |
| CN102938272A (en) * | 2012-11-19 | 2013-02-20 | 四川明星电缆股份有限公司 | Production method for conductors for fire-resistant middle-high voltage cables |
| CN203787175U (en) * | 2014-03-03 | 2014-08-20 | 江苏珠影特种电缆有限公司 | Single-core fireproof cable |
-
2014
- 2014-03-03 CN CN201410074173.8A patent/CN103903769A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1074998A2 (en) * | 1999-08-06 | 2001-02-07 | HABIA CABLE GmbH | High-temperature resistant cable and method of making same |
| EP2434500B1 (en) * | 2010-09-22 | 2013-02-13 | Nexans | Cable line |
| JP2012156113A (en) * | 2011-01-28 | 2012-08-16 | Yazaki Corp | Fire-resistant cable |
| CN202025562U (en) * | 2011-04-02 | 2011-11-02 | 上海永进电缆(集团)有限公司 | Inflaming retarding and fire-resistant cable without armoring |
| CN102737767A (en) * | 2011-04-02 | 2012-10-17 | 上海永进电缆(集团)有限公司 | Fire-resistant soft ceramic cable |
| CN102938272A (en) * | 2012-11-19 | 2013-02-20 | 四川明星电缆股份有限公司 | Production method for conductors for fire-resistant middle-high voltage cables |
| CN203787175U (en) * | 2014-03-03 | 2014-08-20 | 江苏珠影特种电缆有限公司 | Single-core fireproof cable |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104361944A (en) * | 2014-11-07 | 2015-02-18 | 江苏远方电缆厂有限公司 | Ceramic fireproof flame-retardant power cable |
| CN105632621A (en) * | 2016-02-03 | 2016-06-01 | 安徽长风电缆集团有限公司 | Waterproof fire-retardant fire-extinguishing caution cable |
| CN109585062A (en) * | 2018-10-24 | 2019-04-05 | 湖北龙腾红旗电缆(集团)有限公司 | Used in nuclear power station three proofings electrical equipment cable |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140702 |