CN203444835U - Novel flexible multi-core fireproof ready-made-branch no-sheath cable - Google Patents
Novel flexible multi-core fireproof ready-made-branch no-sheath cable Download PDFInfo
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- CN203444835U CN203444835U CN201320393136.4U CN201320393136U CN203444835U CN 203444835 U CN203444835 U CN 203444835U CN 201320393136 U CN201320393136 U CN 201320393136U CN 203444835 U CN203444835 U CN 203444835U
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- cable
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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, especially a novel flexible multi-core fireproof ready-made-branch no-sheath cable. The novel flexible multi-core fireproof ready-made-branch no-sheath cable comprises a main cable and a branch cable. The cable provided by the utility model is characterized in that the interior of the main cable and the interior of the branch cable are respectively provided with a plurality of copper conductors; the copper conductors are wrapped by a fireproof layer; the fireproof is sequentially wrapped by a fireproof thermal-insulation layer and a cabling belting thermal-insulation layer; a high-flame-retardant environmental-protection filling line is filled between the fireproof thermal-insulation layer and the cabling belting thermal-insulation layer; and the cabling belting thermal-insulation layer is sleeved by a waterproof and fireproof layer. The cable provided by the utility model is convenient to lay and install, is good in bending property, is good in fireproof effect, is low in cost of production, is simple in processing technology, and the like.
Description
Technical field
The utility model relates to a kind of cable, especially relates to a kind of novel flexible multicore pre-branch unjacked cable of preventing fires.
Background technology
As everyone knows, in prior art, in high request fireproof cable, the requirement of domestic mineral insulated cable Yao You branch, generally adopts feeder pillar mode.Backbone enters 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 cannot 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 cannot 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, flameproof effect is good, production cost is low, the simple novel flexible multicore of processing technology is prevented fires pre-branch unjacked cable.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of novel flexible multicore pre-branch unjacked cable of preventing fires, comprise leader cable and branch cable, it is characterized in that being provided with many copper conductors in described leader cable and branch cable, many described copper conductors are surrounded with flame retardant coating outward, described flame retardant coating is arranged with refractory insulating layer and stranding band thermal insulation layer outward successively, between described refractory insulating layer and stranding band thermal insulation layer, be filled with high-flame-resistance environment-friendly gasket for packing, stranding band thermal insulation layer is arranged with waterproof fireproofing layer outward.The utility model efficiently solves the easy moisture absorption of magnesium oxide in multicore mineral insulated cable, the problems such as joint length is limited, can guarantee the fire-proof function that multicore mineral insulated cable is identical, can do again length and laying installation convenient, good bending property, be applicable to mobile, vibration place, invest low more cost-savingly than mineral insulated cable again, processing technology is simple; Solved again the fire-resistant branch cable of multicore 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 cannot 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 switch on during burning rated voltage of cable, neither one fuse or circuit breaker disconnect; Conductor is continuous, and bulb does not extinguish.
As preferably, described leader cable and branch cable are provided with crimping copper sheathing outward, and described crimping copper sheathing is arranged with mica tape, watertight composition, ceramic fireproof composite band outward successively, and ceramic fireproof composite band is arranged with fireprotection layer outward.Adopt ceramic fireproof composite band as composite fire thermal insulation layer, processing technology is simple.
As preferably, described fireprotection layer is copper sheathing mould, and described watertight composition is adhesive waterproof tape.Discharge water effective, manufacturing cost is relatively cheap.
As preferably, described waterproof fireproofing layer is embossing copper or stainless steel sheath.Adopt embossing copper sheath as fireproofing of cable layer, improve fireproofing of cable and bending property.
As preferably, described refractory insulating layer is ceramic fireproof composite band.Flameproof effect is good, easy for installation.
Therefore, the utlity model has the features such as laying installation convenience, good bending property, flameproof effect is good, production cost is low, processing technology is simple.
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 multicore pre-branch unjacked cable of preventing fires, comprise leader cable 7 and branch cable 8, in leader cable 7 and branch cable 8, be provided with many copper conductors 1, the many outer flame retardant coatings 2 that are surrounded with of copper conductor 1, flame retardant coating 2 is outer is arranged with refractory insulating layer 3 and stranding band thermal insulation layer 5 successively, between refractory insulating layer 3 and stranding band thermal insulation layer 5, is filled with high-flame-resistance environment-friendly gasket for packing 4, the outer waterproof fireproofing layer 6 that is arranged with of stranding band thermal insulation layer 5.Leader cable and branch cable are provided with crimping copper sheathing 9 outward, outer mica tape 10, watertight composition 11, the ceramic fireproof composite band 12 of being arranged with successively of crimping copper sheathing 9, the outer fireprotection layer 13 that is arranged with of ceramic fireproof composite band 12.Fireprotection layer 13 is copper sheathing mould, and watertight composition 11 is adhesive waterproof tape.Waterproof fireproofing layer 6 is embossing copper or stainless steel sheath.Refractory insulating layer 3 is ceramic fireproof composite band.
The main body of the utility model cable and branch cable are on copper conductor, to be wound around fire-resistant isinglass belt as the insulating barrier of cable, and by new material ceramic fireproof composite band as 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.During to the structural design of prefabricated branch head, adopt and in crimping copper outside, adopt synthetic mica tape to add ceramic fireproof composite band as fire prevention composite insulation layer, by marine glue belt+ceramic fireproof composite band, add copper sheathing mould comprehensive waterproof fire resistive construction again, copper sheathing mould adopts two symmetric designs, every one-shot forming compacting production technology, more synthetic installation.And in corrosive environment or according to requirements at the copper sheathing mould of cable, squeeze again one deck low smoke halogen-free flame-retardant polyolefin jacket material outward as anticorrosion, flame-retardant layer, 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 good fire protecting performance of cable of this kind of structure has again good environmental-protecting performance.
On copper conductor, be wound around fire-resistant isinglass belt as the insulating barrier of cable, and by ceramic fireproof composite band as composite fire thermal insulation layer, improve the heat insulation and flameproof effect of cable, adopt embossing copper sheath, improve 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 composite band power frequency dielectric strength is 36MV/mm, and specific insulation >=1.0 * 1012 Ω m the highlyest can heatproof reach 3000 ℃; So the fusing point of copper be 1083 ℃ when its temperature is no more than 1000 ℃, most places be can because of fusing or burning disintegrate, more can not propagate kindling material.The utility model cable performance is consistent with normal cable property retention.Surpassing under 1000 ℃ of environment at flame, even after the fusing of outside copper sheath, the ceramic fireproof 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 is under flame environment, can be rapidly heat insulation, oxygen barrier, slow down hot conduction, effectively protected core normal power supply.
Should be understood that this embodiment is only not used in restriction scope of the present utility model for the utility model is described.In addition should be understood that those skilled in the art can make various changes or modifications the utility model after having read the content of the utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Claims (5)
1. a novel flexible multicore pre-branch unjacked cable of preventing fires, comprise leader cable (7) and branch cable (8), it is characterized in that being provided with many copper conductors (1) in described leader cable (7) and branch cable (8), the outer flame retardant coating (2) that is surrounded with of described many copper conductors (1), outer refractory insulating layer (3) and the stranding band thermal insulation layer (5) of being arranged with successively of described flame retardant coating (2), between described refractory insulating layer (3) and stranding band thermal insulation layer (5), be filled with high-flame-resistance environment-friendly gasket for packing (4), the outer waterproof fireproofing layer (6) that is arranged with of stranding band thermal insulation layer (5).
2. the novel flexible multicore according to claim 1 pre-branch unjacked cable of preventing fires, it is characterized in that described leader cable and branch cable are provided with crimping copper sheathing (9) outward, outer mica tape (10), watertight composition (11), the ceramic fireproof composite band (12) of being arranged with successively of described crimping copper sheathing (9), the outer fireprotection layer (13) that is arranged with of ceramic fireproof composite band (12).
3. the novel flexible multicore according to claim 2 pre-branch unjacked cable of preventing fires, is characterized in that described fireprotection layer (13) is copper sheathing mould, and described watertight composition (11) is adhesive waterproof tape.
4. the novel flexible multicore according to claim 1 pre-branch unjacked cable of preventing fires, is characterized in that described waterproof fireproofing layer (6) is embossing copper or stainless steel sheath.
5. the novel flexible multicore according to claim 1 pre-branch unjacked cable of preventing fires, is characterized in that described refractory insulating layer (3) is for ceramic fireproof composite band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320393136.4U CN203444835U (en) | 2013-07-03 | 2013-07-03 | Novel flexible multi-core fireproof ready-made-branch no-sheath cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320393136.4U CN203444835U (en) | 2013-07-03 | 2013-07-03 | Novel flexible multi-core fireproof ready-made-branch no-sheath cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203444835U true CN203444835U (en) | 2014-02-19 |
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ID=50095863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320393136.4U Expired - Fee Related CN203444835U (en) | 2013-07-03 | 2013-07-03 | Novel flexible multi-core fireproof ready-made-branch no-sheath cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203444835U (en) |
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2013
- 2013-07-03 CN CN201320393136.4U patent/CN203444835U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20190703 |