CN105047286A - Fire-resistant cable - Google Patents
Fire-resistant cable Download PDFInfo
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- CN105047286A CN105047286A CN201510360088.2A CN201510360088A CN105047286A CN 105047286 A CN105047286 A CN 105047286A CN 201510360088 A CN201510360088 A CN 201510360088A CN 105047286 A CN105047286 A CN 105047286A
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- fire
- layer
- coat
- fireprotection layer
- resisting cable
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Abstract
The invention provides a fire-resistant cable comprising multiple central conductors. The fire-resistant cable is characterized in that the fire-resistant cable is composed of an insulating leather sheath, a metal shielding layer, a fireproof layer and the central conductors which are arranged from outside to inside in turn. The fireproof layer wraps the central conductors. A reinforcing layer is installed between the fireproof layer and the metal shielding layer directly. Isolation material is filled between the reinforcing layer and the fireproof layer. The insulating leather sheath, the metal shielding layer and the reinforcing layer are positioned at the same structural axis. After application of the aforementioned structure, strength of the cable can be effectively enhanced by adopting ceramic fiber with the triangular structure, and the adopted ceramic fiber has the characteristics of being low in weight, high-temperature-resistant and great in thermal stability. Besides, the special triangular structure is adopted so that all groups of wire cores can be isolated and heat radiating area can be increased. Inorganic heat absorption material is filled between the fireproof layer and the reinforcing layer so that an accident of melting of other material caused by overheating of the wire cores can be effectively prevented and thus a fire-resistant function can be effectively realized.
Description
Technical field
The present invention relates to a kind of cable, especially a kind of fire-resisting cable.
Background technology
The cable of at least two stranded similar ropes normally often organized by cable by several or several groups of wires, often organize mutually insulated between wire, and be often twisted into round a center, whole outside is surrounded by the cover layer of high-insulation, fire-resisting cable is a kind of cable the most general in cable, existing fire-resisting cable does not have function of shielding, and fire resistance need to improve.
At present, what fire-resisting cable adopted both at home and abroad is magnesium oxide mineral insulation fire-resisting cable mostly, and the structure of magnesium oxide mineral insulation fire-resisting cable is using electrician's red copper bar as conductor, using seamless copper pipe as sheath.Fill inorganic mineral magnesia powder in sheath to make as insulation.Its advantage is the inorganic insulation structure that have employed magnesia powder, and fire resistance and electric, satisfactory mechanical property, serviceability temperature can reach more than 250 DEG C.But there is following problem: 1) copper pipe is once breakage, insulation property can suddenly decline rapidly; 2) manufacturing process limits the factory length of cable, causes joint many, and the water-proofing treatment of joint is also very difficult, and the Chang Yinwei joint moisture absorption insulation resistance that makes moist is defective; 3) involve great expense assorted, laying installation difficulty is large, can only be used for military and important establishing, and is difficult to spread use.
Summary of the invention
The object of this invention is to provide a kind of fire resistance good, Stability Analysis of Structures be reasonable, fire-resisting cable that coefficient of safety is high.
Realize above-mentioned purpose, the technical solution adopted in the present invention is: a kind of fire-resisting cable, comprise: some center conductors, it is characterized in that: be made up of insulation leather sheath, metal screen layer, fireprotection layer and center conductor successively from outside to inside, described fireprotection layer is coated on center conductor, fireprotection layer and metal screen layer directly between back-up coat is installed, be filled with isolated material between back-up coat and fireprotection layer, described insulation leather sheath, metal screen layer and back-up coat are positioned at same structure axle center.
Preferably, described back-up coat is the ceramic fibre in three-pointed hollow star shape, and described back-up coat and fireprotection layer are integrated and be close to, and described back-up coat and fireprotection layer are positioned at same structure center.
Preferably, described back-up coat is that ceramic fibre is integrated.
Preferably, described isolated material is inorganic endothermic material composition, and described isolated material is evenly between back-up coat and fireprotection layer.
Preferably, described fireprotection layer is made up of silicone band and Mica tape compound, and is mutually intersected by silicone band and mica tape and take up center conductor.
Preferably, described metal screen layer adopts tin-coated copper spun gold to be compiled into network structure and is coated on fireprotection layer.
Preferably, regular compact arrangement between described back-up coat.
After the present invention adopts said structure, effectively cable strength can be improved by the ceramic fibre of the structure triangular in shape adopted, and the ceramic fibre adopted possesses lightweight, high temperature resistant, the thermally-stabilised feature such as good, and adopt special triangular structure, effectively by each group of core isolation, area of dissipation can be increased, adopts and fill inorganic endothermic material between fireprotection layer and back-up coat, effectively prevent from causing because core is overheated the accidents such as other materials thawing to occur, effectively play fire-resistant function.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, center conductor, 2, insulation leather sheath, 3, metal screen layer, 4, fireprotection layer, 5, back-up coat, 6, isolated material.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
As shown in the figure, for achieving the above object, the technical solution adopted in the present invention is: a kind of fire-resisting cable, comprise: some center conductors 1, it is characterized in that: be made up of insulation leather sheath 2, metal screen layer 3, fireprotection layer 4 and center conductor 1 successively from outside to inside, described fireprotection layer 4 is coated on center conductor 1, fireprotection layer 4 and metal screen layer 3 directly between back-up coat 5 is installed, be filled with isolated material 6 between back-up coat 5 and fireprotection layer 4, described insulation leather sheath 2, metal screen layer 3 and back-up coat 5 are positioned at same structure axle center.
Preferably, described back-up coat 5 is the ceramic fibre in three-pointed hollow star shape, and described back-up coat 5 is integrated with fireprotection layer 4 and is close to, and described back-up coat 5 and fireprotection layer 4 are positioned at same structure center.
Preferably, described back-up coat 5 is ceramic fibre integration.
Preferably, described isolated material 6 is inorganic endothermic material composition, and described isolated material 6 is evenly between back-up coat 5 and fireprotection layer 4.
Preferably, described fireprotection layer 4 is made up of silicone band and Mica tape compound, and is mutually intersected by silicone band and mica tape and take up center conductor 1.
Preferably, described metal screen layer 3 adopts tin-coated copper spun gold to be compiled into network structure and is coated on fireprotection layer 4.
Preferably, regular compact arrangement between described back-up coat 5.
The above is the preferred embodiment of the present invention; certainly the interest field of the present invention can not be limited with this; should be understood that; for those skilled in the art; technical scheme of the present invention is modified or equivalent replacement, do not depart from the protection range of technical solution of the present invention.
Claims (7)
1. a fire-resisting cable, comprise: some center conductors (1), it is characterized in that: be made up of insulation leather sheath (2), metal screen layer (3), fireprotection layer (4) and center conductor (1) successively from outside to inside, described fireprotection layer (4) is coated on center conductor (1), fireprotection layer (4) and metal screen layer (3) directly between back-up coat (5) is installed, be filled with isolated material (6) between back-up coat (5) and fireprotection layer (4), described insulation leather sheath (2), metal screen layer (3) and back-up coat (5) are positioned at same structure axle center.
2. a kind of fire-resisting cable according to claim 1, it is characterized in that: described back-up coat (5) is the ceramic fibre in three-pointed hollow star shape, and described back-up coat (5) and fireprotection layer (4) are integrated and be close to, described back-up coat (5) and fireprotection layer (4) are positioned at same structure center.
3. a kind of fire-resisting cable according to claim 2, is characterized in that: described back-up coat (5) is ceramic fibre integration.
4. a kind of fire-resisting cable according to claim 1, is characterized in that: described isolated material (6) is inorganic endothermic material composition, and described isolated material (6) is evenly between back-up coat (5) and fireprotection layer (4).
5. a kind of fire-resisting cable according to claim 1, is characterized in that: described fireprotection layer (4) is made up of silicone band and Mica tape compound, and is mutually intersected by silicone band and mica tape and take up center conductor (1).
6. a kind of fire-resisting cable according to claim 1, is characterized in that: described metal screen layer (3) adopts tin-coated copper spun gold to be compiled into network structure and is coated on fireprotection layer (4).
7. a kind of fire-resisting cable according to claim 2, is characterized in that: regular compact arrangement between described back-up coat (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510360088.2A CN105047286A (en) | 2015-06-26 | 2015-06-26 | Fire-resistant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510360088.2A CN105047286A (en) | 2015-06-26 | 2015-06-26 | Fire-resistant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105047286A true CN105047286A (en) | 2015-11-11 |
Family
ID=54453760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510360088.2A Pending CN105047286A (en) | 2015-06-26 | 2015-06-26 | Fire-resistant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105047286A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105741938A (en) * | 2016-04-13 | 2016-07-06 | 安徽新华电缆(集团)有限公司 | Fire-resistant and environment-friendly cable |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120199390A1 (en) * | 2011-02-04 | 2012-08-09 | Hitachi Cable, Ltd. | Three-conductor cable |
| CN203480880U (en) * | 2013-09-13 | 2014-03-12 | 董松节 | Three-ridge cable |
| CN103903733A (en) * | 2014-03-03 | 2014-07-02 | 安徽万博电缆材料有限公司 | Reinforcing cable resistant to high temperature |
| CN203787116U (en) * | 2014-03-31 | 2014-08-20 | 安徽华菱电缆集团有限公司 | Three-core twisted-pair reinforcement cable applied to instrument |
| CN203931587U (en) * | 2013-12-25 | 2014-11-05 | 安徽联嘉祥特种电缆有限公司 | fire-resistant wire and cable |
| CN104392794A (en) * | 2014-11-27 | 2015-03-04 | 江苏红峰电缆集团有限公司 | Novel reinforcing type waterproof and fire-resistant armored cable with built-in optical fiber |
| CN104464928A (en) * | 2014-12-12 | 2015-03-25 | 宿州永通电缆有限公司 | Fire-resistant five-core cable |
| CN204348363U (en) * | 2015-01-28 | 2015-05-20 | 深圳市奔达康电缆股份有限公司 | Adopt the cable core of ceramoplastic |
-
2015
- 2015-06-26 CN CN201510360088.2A patent/CN105047286A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120199390A1 (en) * | 2011-02-04 | 2012-08-09 | Hitachi Cable, Ltd. | Three-conductor cable |
| CN203480880U (en) * | 2013-09-13 | 2014-03-12 | 董松节 | Three-ridge cable |
| CN203931587U (en) * | 2013-12-25 | 2014-11-05 | 安徽联嘉祥特种电缆有限公司 | fire-resistant wire and cable |
| CN103903733A (en) * | 2014-03-03 | 2014-07-02 | 安徽万博电缆材料有限公司 | Reinforcing cable resistant to high temperature |
| CN203787116U (en) * | 2014-03-31 | 2014-08-20 | 安徽华菱电缆集团有限公司 | Three-core twisted-pair reinforcement cable applied to instrument |
| CN104392794A (en) * | 2014-11-27 | 2015-03-04 | 江苏红峰电缆集团有限公司 | Novel reinforcing type waterproof and fire-resistant armored cable with built-in optical fiber |
| CN104464928A (en) * | 2014-12-12 | 2015-03-25 | 宿州永通电缆有限公司 | Fire-resistant five-core cable |
| CN204348363U (en) * | 2015-01-28 | 2015-05-20 | 深圳市奔达康电缆股份有限公司 | Adopt the cable core of ceramoplastic |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105741938A (en) * | 2016-04-13 | 2016-07-06 | 安徽新华电缆(集团)有限公司 | Fire-resistant and environment-friendly cable |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151111 |