CN203351259U - New type flexible single-core fireproof pre-branched sheath-provided cable - Google Patents
New type flexible single-core fireproof pre-branched sheath-provided cable Download PDFInfo
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- CN203351259U CN203351259U CN2013203760040U CN201320376004U CN203351259U CN 203351259 U CN203351259 U CN 203351259U CN 2013203760040 U CN2013203760040 U CN 2013203760040U CN 201320376004 U CN201320376004 U CN 201320376004U CN 203351259 U CN203351259 U CN 203351259U
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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 new type flexible single-core fireproof pre-branched sheath-provided cable. The new type flexible single-core fireproof pre-branched sheath-provided cable comprises a head cable and a branch cable. The new type flexible single-core fireproof pre-branched sheath-provided cable is characterized in that both of the inner portion of the head cable and the inner portion of the branch cable are provided with a copper conductor and a fireproof layer which is sleeved onto the outer side of the copper conductor, the outer side of the fireproof layer is sleeved with a fireproof thermal-protective layer, and the outer side of the fireproof thermal-protective layer is sleeved with a fireproof and waterproof layer and a flame-retardant protective layer successively. According to the utility model, advantages of convenient laying and installation, good bending performance, reduced cost, simple processing technology, good fireproof stability, etc., can be realized.
Description
Technical field
The utility model relates to a kind of cable, and especially relating to a kind of novel flexible list core pre-branch that prevents fires has jacketed cable.
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, provides 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 that prevents fires that jacketed cable is arranged.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: there is jacketed cable in a kind of novel flexible list core pre-branch that prevents fires, comprise leader cable and branch cable, it is characterized in that in described leader cable and branch cable being provided with copper conductor and be set in the outer flame retardant coating of copper conductor, described flame retardant coating is arranged with refractory insulating layer outward, and described refractory insulating layer is arranged with layer and the fire-retardant overcoat of discharging water of preventing fires outward successively.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 again to squeeze one deck low smoke halogen-free flame-retardant polyolefin jacket material as anticorrosion, flame-retardant layer outside the copper sheathing mould at cable as the fire prevention composite insulation layer in corrosive environment or according to requirements, while needing, sheath adopts Halogen, low cigarette, fire-retardant polyolefin jacket, improve the environmental-protecting performance of sheath, reach the performance of low-smoke non-halogen flame-retardant, the existing fire protecting performance preferably of the cable of this kind of structure has again environmental-protecting performance preferably.
As preferably, described leader cable and branch cable also are arranged with crimping copper sheathing and mica tape 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 mica tape also is arranged with watertight composition, ceramic fireproof＝fire-proof composite band, fireprotection layer, halogen-free and low-smoke flame-retardant polyolefin sheathed outward from the inside to surface successively.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.
As preferably, described fire prevention discharges water layer for embossing copper or stainless steel sheath.
As preferably, described refractory insulating layer is ceramic fireproof＝fire-proof composite band.
As preferably, described flame retardant coating is mica 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, there is jacketed cable in a kind of novel flexible list core pre-branch that prevents fires, comprise leader cable 6 and branch cable 7, be provided with copper conductor 1 in leader cable 6 and branch cable 7 and be set in the outer flame retardant coating 2 of copper conductor 1, flame retardant coating is arranged with refractory insulating layer 3 outward, outer layer 4 and the fire-retardant overcoat 5 of discharging water of preventing fires that be arranged with successively of refractory insulating layer 3.Outer crimping copper sheathing 8 and the mica tape 9 of also being arranged with of leader cable 6 and branch cable 7.Outer watertight composition 10, ceramic fireproof＝fire-proof composite band 11, the fireprotection layer 12, halogen-free and low-smoke flame-retardant polyolefin sheathed 13 of also being arranged with successively from the inside to surface of mica tape 9.Fire prevention discharges water layer 4 for embossing copper or stainless steel sheath.Refractory insulating layer 3 is ceramic fireproof＝fire-proof composite band.Flame retardant coating 2 is mica 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.Cable of the present invention 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.
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 (6)
1. there is jacketed cable in a novel flexible list core pre-branch that prevents fires, comprise leader cable (6) and branch cable (7), it is characterized in that in described leader cable (6) and branch cable (7) being provided with copper conductor (1) and be set in the outer flame retardant coating (2) of copper conductor (1), described flame retardant coating is arranged with refractory insulating layer (3) outward, outer layer (4) and the fire-retardant overcoat (5) of discharging water of preventing fires that be arranged with successively of described refractory insulating layer (3).
2. there is jacketed cable in the novel flexible list core according to claim 1 pre-branch that prevents fires, it is characterized in that outer crimping copper sheathing (8) and the mica tape (9) of also being arranged with of described leader cable (6) and branch cable (7).
3. there is jacketed cable in the novel flexible list core according to claim 2 pre-branch that prevents fires, it is characterized in that outer watertight composition (10), ceramic fireproof＝fire-proof composite band (11), fireprotection layer (12), halogen-free and low-smoke flame-retardant polyolefin sheathed (13) of also being arranged with successively from the inside to surface of described mica tape (9).
4. there is jacketed cable in the novel flexible list core according to claim 1 pre-branch that prevents fires, it is characterized in that described fire prevention discharges water layer (4) for embossing copper or stainless steel sheath.
5. there is jacketed cable in the novel flexible list core according to claim 1 pre-branch that prevents fires, it is characterized in that described refractory insulating layer (3) is for ceramic fireproof＝fire-proof composite band.
6. there is jacketed cable in the novel flexible list core according to claim 1 pre-branch that prevents fires, it is characterized in that described flame retardant coating (2) is mica tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203760040U CN203351259U (en) | 2013-06-27 | 2013-06-27 | New type flexible single-core fireproof pre-branched sheath-provided cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203760040U CN203351259U (en) | 2013-06-27 | 2013-06-27 | New type flexible single-core fireproof pre-branched sheath-provided cable |
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| Publication Number | Publication Date |
|---|---|
| CN203351259U true CN203351259U (en) | 2013-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203760040U Expired - Fee Related CN203351259U (en) | 2013-06-27 | 2013-06-27 | New type flexible single-core fireproof pre-branched sheath-provided cable |
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| CN (1) | CN203351259U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104681177A (en) * | 2015-01-27 | 2015-06-03 | 浙江万马股份有限公司 | Novel fireproof cable and novel flexible multi-core fireproof pre-branch cable |
| CN105938742A (en) * | 2016-06-24 | 2016-09-14 | 安徽宜德电子有限公司 | Preparation method of nanoscale fireproof flexible cable |
-
2013
- 2013-06-27 CN CN2013203760040U patent/CN203351259U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104681177A (en) * | 2015-01-27 | 2015-06-03 | 浙江万马股份有限公司 | Novel fireproof cable and novel flexible multi-core fireproof pre-branch cable |
| CN105938742A (en) * | 2016-06-24 | 2016-09-14 | 安徽宜德电子有限公司 | Preparation method of nanoscale fireproof flexible cable |
| CN105938742B (en) * | 2016-06-24 | 2017-09-15 | 安徽宜德电子有限公司 | A kind of preparation method of nano level fireproof flexible cable |
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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: 20160627 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |