CN203351263U - Novel flexible single-core fireproof pre-branched sheath-free cable - Google Patents
Novel flexible single-core fireproof pre-branched sheath-free cable Download PDFInfo
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- CN203351263U CN203351263U CN2013203923777U CN201320392377U CN203351263U CN 203351263 U CN203351263 U CN 203351263U CN 2013203923777 U CN2013203923777 U CN 2013203923777U CN 201320392377 U CN201320392377 U CN 201320392377U CN 203351263 U CN203351263 U CN 203351263U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model relates to a cable, particularly to a novel flexible single-core fireproof pre-branched sheath-free cable. The novel flexible single-core fireproof pre-branched sheath-free cable comprises a main cable and a branch cable, and is characterized in that the main cable and the branch cable are externally provided with a crimping copper sleeve; the crimping copper sleeve is externally sequentially provided with a fireproof layer and a waterproof layer; the waterproof layer is externally coated with a fireproof thermal-insulation layer; and the fireproof thermal-insulation layer is externally provided with a flame-retardant layer. The novel flexible single-core fireproof pre-branched sheath-free cable is characterized by being convenient to lay and install, good in bending property, lowered in cost, simple in processing technology, good in fireproof stability, and the like.
Description
Technical field
The utility model relates to a kind of cable, especially relates to a kind of novel flexible list core pre-branch unjacked cable of preventing fires.
Background technology
As everyone knows, in prior art, in the high request fireproof cable, domestic mineral insulated cable will have branch's requirement, generally adopts the feeder pillar mode.Backbone advances feeder pillar, and branch's core is drawn by feeder pillar, and this kind of mode need to operate at building-site, installs loaded down with trivial details and unreliable.Feeder pillar itself do not prevent fires, non-watertight, fire can't guarantee that mineral insulated cable continues to maintain the requirement of energising while occurring.
The fire-resistant branch cable of plastic insulation is due to its cable body and divide support body without metal tube or can protection mica insulation, and fire resistance can only reach 750 degree 90 minutes, and fire stability is poor; And this kind of cable can't meet spray and waterproof requirement with a minute support body.Along with market at skyscraper to the more and more proposition of high request of the fire-resistant requirement of the pre-branched line of low pressure, therefore the substitutive demand amount also grows with each passing day, the novel flexible list core of exploitation fire prevention pre-branched cable.This cable is the substitute products that single core mineral insulated cable adds feeder pillar and the fire-resistant branch cable of plastic insulation: can guarantee identical fire-proof function, can do again length and laying installation convenient, good bending property, be applicable to mobile, vibration place, invests low again.
Mineral insulated cable in existing high fireproof cable will have branch's requirement, generally adopts the feeder pillar mode.Backbone advances feeder pillar, and branch's core is drawn by feeder pillar, and this kind of mode need to operate at building-site, installs loaded down with trivial details and unreliable.Feeder pillar itself do not prevent fires, non-watertight, fire can't guarantee that mineral insulated cable continues to maintain the requirement of energising while occurring.The fire-resistant branch cable of plastic insulation is due to its cable body and divide support body without metal tube or can protection mica insulation, and fire resistance can only reach 750 degree 90 minutes, and fire stability is poor; And this kind of cable can't meet spray and waterproof requirement with a minute support body.
Summary of the invention
The utility model is mainly for the existing above-mentioned technical problem of prior art, and a kind of laying installation convenience, good bending property, the novel flexible list core that cost-saving, processing technology is simple, fire stability the is good pre-branch unjacked cable of preventing fires is provided.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of novel flexible list core pre-branch unjacked cable of preventing fires, comprise leader cable and branch cable, it is characterized in that described leader cable and branch cable are provided with the crimping copper sheathing outward, described crimping copper sheathing is arranged with flame retardant coating and watertight composition outward successively, described watertight composition is arranged with refractory insulating layer outward, and described refractory insulating layer is provided with fireprotection layer outward.Main body of the present utility model and branch cable are to be wound around the insulating barrier of fire-resistant isinglass belt as cable on copper conductor, and by new material ceramic fireproof＝fire-proof composite band as the composite fire thermal insulation layer, improve the heat insulation and flameproof effect of cable, adopt embossing copper or stainless steel sheath, improve fireproofing of cable and bending property.Adopt during to the structural design of prefabricated branch head and in crimping copper outside, adopt synthetic mica tape to add ceramic fireproof＝fire-proof composite band as the fire prevention composite insulation layer, the existing fire protecting performance preferably of the cable of this kind of structure has again environmental-protecting performance preferably.
As preferably, be provided with copper conductor in described leader cable and branch cable and be set in the outer mica tape of copper conductor, described mica tape is arranged with ceramic fireproof＝fire-proof composite band outward, and described ceramic fireproof＝fire-proof composite band is arranged with the fire-proof and water-proof layer outward.Adopt marine glue belt+ceramic fireproof＝fire-proof composite band to add copper sheathing mould comprehensive waterproof fire resistive construction, the copper sheathing mould adopts two symmetric designs, every one-shot forming compacting production technology, more synthetic the installation.
As preferably, described fire-proof and water-proof layer is embossing copper or stainless steel sheath.
As preferably, described flame retardant coating is mica tape, and described watertight composition is adhesive waterproof tape.
Therefore, the utlity model has the characteristics such as laying installation convenience, good bending property, cost-saving, processing technology is simple, fire stability is good.
The accompanying drawing explanation
Accompanying drawing 1 is a kind of structure partial cutaway view of the present utility model.
Accompanying drawing 2 is another kind of structure cutaway views of the present utility model.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1:
As shown in Figure of description 1,2, a kind of novel flexible list core pre-branch unjacked cable of preventing fires, comprise leader cable 5 and branch cable 6, the outer crimping copper sheathing 7 that is provided with of leader cable 5 and branch cable 6, outer flame retardant coating 8 and the watertight composition 9 of being arranged with successively of crimping copper sheathing 7, the outer refractory insulating layer 10 that is arranged with of watertight composition 9, the outer fireprotection layer 11 that is provided with of refractory insulating layer 10.Be provided with copper conductor 1 in leader cable 5 and branch cable 6 and be set in the outer mica tape 2 of copper conductor 1, the outer ceramic fireproof＝fire-proof composite band 3 that is arranged with of mica tape 2, the outer fire-proof and water-proof layer 4 that is arranged with of ceramic fireproof＝fire-proof composite band 3.Fire-proof and water-proof layer 4 is embossing copper or stainless steel sheath.Flame retardant coating 8 is mica tape, and watertight composition 9 is adhesive waterproof tape.
The utility model efficiently solves the easy moisture absorption of magnesium oxide in single core mineral insulated cable, the problems such as joint length is limited, can the identical fire-proof function of bonding core mineral insulated cable, can do again length and laying installation convenient, good bending property, be applicable to mobile, vibration place, investment is low more cost-saving than mineral insulated cable again, and processing technology is simple; Solved again the fire-resistant branch cable of single core plastic insulation due to its cable body and divided support body without metal tube or can protection mica insulation, fire resistance can only reach 750 degree 90 minutes, and fire stability is poor; And this kind of cable can't meet spray and waterproof requirement with a minute support body.The utility model cable is by test, cable is under 950 ℃～1000 ℃ flame temperatures, and burning 300min(is than long three times of common fire-resisting cable time), there is very good fire-resistant and anti-flaming function, the rated voltage of energising cable during burning, neither one fuse or circuit breaker disconnect; Conductor is continuous, and bulb does not extinguish.
Be wound around the insulating barrier of fire-resistant isinglass belt as cable on copper conductor, and with ceramic fireproof＝fire-proof composite band as the composite fire thermal insulation layer, improve the heat insulation and flameproof effect of cable, adopt the embossing copper sheath, raising fireproofing of cable and bending property.Under normal temperature, the power frequency dielectric strength of fire-resistant isinglass belt is 10MV/m, specific insulation >=1.0 * 1010 Ω m; Ceramic fireproof＝fire-proof composite band power frequency dielectric strength is 36MV/mm, specific insulation >=1.0 * 1012 Ω m, but the highest heatproof reaches 3000 ℃; So the fusing point of copper be 1083 ℃ when its temperature is no more than 1000 ℃, most places be can because of the fusing or the burning disintegrate, more can not propagate kindling material.Cable performance of the present invention is consistent with the normal cable property retention.Surpassing under 1000 ℃ of environment at flame, even after the fusing of outside copper sheath, the ceramic fireproof＝fire-proof composite band of the inside can expand rapidly, forms fine and close porous carbon layer, plays good refractory heat-insulating effect; The mica tape of guaranteeing the inside can be not damaged when vibration yet, guaranteed its insulating properties.Adopt said structure, when cable, under flame environment, can be rapidly heat insulation, oxygen barrier, slow down hot conduction, effectively protected the core normal power supply.
Should be understood that this embodiment only is not used in restriction scope of the present utility model for the utility model is described.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (4)
1. a novel flexible list core pre-branch unjacked cable of preventing fires, comprise leader cable (5) and branch cable (6), it is characterized in that the outer crimping copper sheathing (7) that is provided with of described leader cable (5) and branch cable (6), outer flame retardant coating (8) and the watertight composition (9) of being arranged with successively of described crimping copper sheathing (7), the outer refractory insulating layer (10) that is arranged with of described watertight composition (9), the outer fireprotection layer (11) that is provided with of described refractory insulating layer (10).
2. the novel flexible list core according to claim 1 pre-branch unjacked cable of preventing fires, it is characterized in that in described leader cable (5) and branch cable (6) being provided with copper conductor (1) and be set in the outer mica tape (2) of copper conductor (1), the outer ceramic fireproof＝fire-proof composite band (3) that is arranged with of described mica tape (2), the outer fire-proof and water-proof layer (4) that is arranged with of described ceramic fireproof＝fire-proof composite band (3).
3. the novel flexible list core according to claim 2 pre-branch unjacked cable of preventing fires, is characterized in that described fire-proof and water-proof layer (4) is embossing copper or stainless steel sheath.
4. the novel flexible list core according to claim 1 and 2 pre-branch unjacked cable of preventing fires, is characterized in that described flame retardant coating (8) is mica tape, and described watertight composition (9) is adhesive waterproof tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203923777U CN203351263U (en) | 2013-07-02 | 2013-07-02 | Novel flexible single-core fireproof pre-branched sheath-free cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203923777U CN203351263U (en) | 2013-07-02 | 2013-07-02 | Novel flexible single-core fireproof pre-branched sheath-free cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203351263U true CN203351263U (en) | 2013-12-18 |
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ID=49751130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203923777U Expired - Fee Related CN203351263U (en) | 2013-07-02 | 2013-07-02 | Novel flexible single-core fireproof pre-branched sheath-free cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203351263U (en) |
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2013
- 2013-07-02 CN CN2013203923777U patent/CN203351263U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG WANMA CO., LTD. Free format text: FORMER NAME: ZHEJIANG WANMA CABLE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 311305 Ling'an Economic Development Zone, Zhejiang Province, South Ring Road, No. 88, No. Patentee after: ZHEJIANG WANMA CO., LTD. Address before: 311305 Ling'an Economic Development Zone, Zhejiang Province, South Ring Road, No. 88, No. Patentee before: Zhejiang Wanma Cable Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20160702 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |