CN206460797U - A kind of ceramic polyolefin fire-resisting cable - Google Patents
A kind of ceramic polyolefin fire-resisting cable Download PDFInfo
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- CN206460797U CN206460797U CN201621267973.2U CN201621267973U CN206460797U CN 206460797 U CN206460797 U CN 206460797U CN 201621267973 U CN201621267973 U CN 201621267973U CN 206460797 U CN206460797 U CN 206460797U
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Abstract
The utility model discloses a kind of ceramic polyolefin fire-resisting cable, the ceramic polyolefin fire-resisting cable includes three cable cores, and the cable core includes conductor, internal shield, insulating barrier, external shielding layer and metal screen layer successively from the inside to the outside；It is coated with fire-resistant wrapping tape layer, inner restrictive coating, ceramic polyolefin flame retardant coating, fire-resistant wrapping tape layer and external sheath layer outside three cable cores successively from the inside to the outside.This structural cable, overall fire resistance rating is higher, and production efficiency is high, and toxic and harmful gas will not be discharged during burning, is adapted to middle high-pressure cable.
Description
Technical field
The utility model is related to a kind of power cable, more particularly to a kind of ceramic polyolefin fireproof cable.
Background technology
Fire-resisting cable is widely used in the important department such as skyscraper, subway, power plant, nuclear power station and public field
Institute.Many infrastructure projects start fire-resisting cable of showing appreciation for somebody simultaneously, and to occur concrete on fire, electric power system can keep stabilization just
Often operating, contributes to the expansion of rescue work, and the loss of the injures and deaths and finance of personnel is reduced as far as possible.
It is both at home and abroad at present to use the fire-resisting cables for aoxidizing magnesium mineral fire-resisting cable and mica tape/rubber composite belt more,
The former manufacturing cost is high, and it is big that difficulty is laid in manufacture；The latter has certain unstability, and the mica sheet of many mica tapes easily takes off
Fall, particularly the manufacture of small area fire-resisting cable, product quality it is difficult to ensure that.With the continuous renewal of refractory material, ceramic
Silastic fire resistance cable starts to be used, but silicon rubber manufacturing procedure is more, and the cycle is longer, low production efficiency；And ceramics
The flame retardant coating hardness that SiClx rubber is formed after combustion is smaller, without certain adhesive force and intensity, is easily broken and comes off, fire resisting
Effect is still poor.In addition, silicon rubber can form SiO 2 powder after combustion, adhesive ability is low, easily forms dust, right
Personnel cause unexpected injury.
Utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of ceramic polyolefin resistance to
Thermoelectricity cable, to overcome fire-resisting cable processing technology complexity in the prior art, low production efficiency, the defect of fire resisting flameproof effect difference.
To achieve these goals or other purposes, the utility model is achieved through the following technical solutions.
A kind of ceramic polyolefin fire-resisting cable, the ceramic polyolefin fire-resisting cable includes three cable cores, the cable
Core includes conductor, internal shield, insulating barrier, external shielding layer and metal screen layer successively from the inside to the outside；Three cable cores it is outer by
It is interior to be coated with successively outside fire-resistant wrapping tape layer, inner restrictive coating, ceramic polyolefin flame retardant coating, fire-resistant wrapping tape layer and external sheath layer.
Preferably, the thickness of the ceramic polyolefin flame retardant coating is 3~10mm.
Preferably, the thickness of the insulating barrier is 5~15mm.
Preferably, the thickness of the inner restrictive coating is 3~10mm.
Preferably, the thickness of the external sheath layer is 3~10mm.
Preferably, the number of plies of the fire-resistant wrapping tape layer is 1~4 layer.
Preferably, the internal shield thickness is 1~5mm.
Preferably, the external shielding layer thickness is 1~5mm.
Preferably, the metal screen layer thickness is 1~5mm.
A kind of new ceramics polyolefin fire-resisting cable is disclosed in the utility model, it includes three cable cores, each
Cable core is coated with multilayer material, is then also coated with multilayer material outside three cable cores.The utility model can pass through GB/
The cable integrality experiment of T19216.21-2008 standards.The utility model uses ceramic polyolefin material ceramic polyolefin material
Processing technology is easy, and production efficiency is high, to extruding without harsh requirement, multiple compared to Ceramic silicon rubber and ceramic fire resisting
Crossed belt is easier industrial amplification production.This structural cable, overall fire resistance rating is higher, and production efficiency is high, will not be released during burning
Toxic and harmful gas is put, is adapted to middle high-pressure cable.
Brief description of the drawings
Fig. 1 is the structural representation of ceramic polyolefin fire-resisting cable described in the utility model embodiment.
Wherein, reference is as follows in Fig. 1：
1 is conductor；
2 be internal shield；
3 be insulating barrier；
4 be external shielding layer；
5 be metal screen layer；
6 be fire-resistant wrapping tape layer；
7 be inner restrictive coating；
8 be ceramic polyolefin flame retardant coating；
9 be fire-resistant wrapping tape layer；
10 be external sheath layer.
Embodiment
Embodiment of the present utility model is illustrated by particular specific embodiment below, those skilled in the art can be by this
Content disclosed by specification understands other advantages of the present utility model and effect easily.
It should be clear that structure, ratio, size depicted in this specification institute accompanying drawings etc., only to coordinate specification to be taken off
The content shown, so that those skilled in the art is understood with reading, is not limited to the enforceable restriction bar of the utility model
Part, therefore do not have technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influenceing
Under effect that the utility model can be generated and the purpose that can reach, all should still it fall in the technology disclosed in the utility model
In the range of Rong get Neng is covered.Meanwhile, it is cited such as " on ", " under ", "left", "right", " centre " and " one " in this specification
Deng term, be merely convenient to narration understand, and be not used to limit the enforceable scope of the utility model, its relativeness
It is altered or modified, under without essence change technology contents, when being also considered as the enforceable category of the utility model.
As shown in figure 1, present embodiment discloses a kind of ceramic polyolefin fire-resisting cable, the ceramic polyolefin fire resisting
Cable includes three cable cores, and the cable core includes conductor 1, internal shield 2, insulating barrier 3, the and of external shielding layer 4 successively from the inside to the outside
Metal screen layer 5；It is coated with fire-resistant wrapping tape layer 6, inner restrictive coating 7, ceramic polyene outside three cable cores successively from the inside to the outside
Hydrocarbon flame retardant coating 8, fire-resistant wrapping tape layer 9 and external sheath layer 10.
In the utility model between three cable cores and three cable cores and be coated on outside it fire-resistant wrapping tape layer between sky
Packed layer is not provided with gap.Conductor described in the utility model is the conductor of several conductor strands formation.
Preferably, the thickness of the ceramic polyolefin flame retardant coating 8 is 3~10mm.It is highly preferred that the ceramic polyene
The thickness of hydrocarbon flame retardant coating 8 is 4~6mm.Specifically, in the present embodiment, the thickness of the ceramic polyolefin flame retardant coating 8 is 5mm.
The ceramic polyolefin flame retardant coating 8 is using ceramic polyolefin material as base material, can after high temperature or big fire calcination
The solid ceramic layer of densification is quickly formed, with certain mechanical strength, and calcination time is longer, the compactness of solid ceramic layer
It is higher with mechanical strength, under big fire hot conditions can rapid-result porcelain soon, form ceramic-like concrete mulching outside some cable cores,
Play well fire prevention oxygen barrier heat-blocking action, protection the inside conductor outer layer screen layer and insulating barrier under big fire combustion case not
It is destroyed, so as to ensure the normal operation of the cable of Fire Conditions.In addition, the pottery formed after the burning of ceramic polyolefin flame retardant coating
Porcelain solid layer can play heat-insulated effect, effectively reduce the temperature of cable inner, preferably the filling of protection cable inner
Layer and insulating barrier, it is ensured that circuit runs well under Fire Conditions.Verified by production practices, relative to Ceramic silicon rubber and
Ceramic mica composite band, the processing technology of ceramic polyolefin is simple, requires low to extrusion process equipment, production efficiency is high,
It can be good at adapting to industrialization large-scale production., can be with addition, by means of the excellent refractory heat-insulating effect of ceramic polyolefin
Using fire-resistant wrapping tape alternative metals armouring, production cost is greatlyd save, while improving production efficiency.
Insulating barrier 3 described in the present embodiment can use TPO, elastomer class and polyolefin elastic composite material.
More specifically, the insulating barrier 3 is polyolefins thermoplastic elastomer, is referred to soft chain segment based on ethylene propylene diene rubber
Olefin rubber, the thermoplastic elastomer (TPE) of polyolefin resin composition of the hard segment based on polypropylene.Preferably, the insulation
The thickness of layer 3 is 5~15mm.It is highly preferred that the thickness of the insulating barrier 3 is 4~6mm.More specifically, institute in the present embodiment
The thickness for stating insulating barrier 3 is 5mm.
Insulating barrier in the utility model includes 5 three layers of internal shield 2, external shielding layer 4 and metal screen layer.Preferably,
The thickness of the internal shield 2, external shielding layer 4 and metal screen layer 5 is 1~5mm.
In the present embodiment, the inner restrictive coating 7 uses low-smoke non-halogen flame-retardant oxygen barrier layer.I.e. inner restrictive coating 7 have low cigarette without
The characteristic of the fire-retardant oxygen barrier of halogen.Preferably, the thickness of the inner restrictive coating 7 is 3~10mm.It is highly preferred that the inner restrictive coating 7
Thickness is 3~6mm.Specifically, the thickness of inner restrictive coating 7 described in the present embodiment is 5mm.
In the present embodiment, external sheath layer 10 can be protected from low-smoke non-halogen flame-retardant pe sheath and flame-proof polyvinyl chloride
Set.Preferably, the thickness of the external sheath layer 10 is 3~10mm.It is highly preferred that the thickness of the external sheath layer 10 be 3~
6mm.Specifically, the thickness of external sheath layer 10 described in the present embodiment is 6mm.
Preferably, the number of plies of the fire-resistant wrapping tape layer 9 is 1~4 layer.It is further preferable that the number of plies of the fire-resistant wrapping tape layer 9
For 2~4 layers.Specifically, it is 2 layers in the present embodiment.Conventional metals armouring is substituted using fire-resistant wrapping tape in the utility model.
Institute's fire-resistant wrapping tape layer 6 is alkali-free glass fiber yarn, non-woven fabrics or glass fiber band in the present embodiment.The fire-resistant wrapping tape
Layer 6 further strengthens fire resisting fireproofing function, while the weight of cable is alleviated, and because the flexibility of fire-resistant wrapping tape layer is than passing
Unite metal armouring it is flexible, beneficial to cable process.
In summary, a kind of new ceramics polyolefin fire-resisting cable is disclosed in the utility model, it includes three cables
Core, each cable core is coated with multilayer material, is then also coated with multilayer material outside three cable cores.The utility model can pass through
The cable integrality experiment of GB/T19216.21-2008 standards.The utility model uses ceramic polyolefin material ceramic polyene
Hydrocarbon material processing technology is easy, and production efficiency is high, resistance to compared to Ceramic silicon rubber and ceramic to extruding without harsh requirement
Fiery composite band is easier industrial amplification production.This structural cable, overall fire resistance rating is higher, and production efficiency is high, during burning not
Toxic and harmful gas can be discharged, is adapted to middle high-pressure cable.
Above-described embodiment only illustrative principle of the present utility model and its effect are new not for this practicality is limited
Type.Any person skilled in the art can all be carried out without prejudice under spirit and scope of the present utility model to above-described embodiment
Modifications and changes.Therefore, such as those of ordinary skill in the art without departing from the essence disclosed in the utility model
God and all equivalent modifications completed under technological thought or change, should be covered by claim of the present utility model.
Claims (9)
1. a kind of ceramic polyolefin fire-resisting cable, it is characterised in that：The ceramic polyolefin fire-resisting cable includes three cables
Core, the cable core includes conductor, internal shield, insulating barrier, external shielding layer and metal screen layer successively from the inside to the outside；Described three
It is coated with the first fire-resistant wrapping tape layer, inner restrictive coating, ceramic polyolefin flame retardant coating, the second fire resisting bag outside cable core successively from the inside to the outside
Belt and external sheath layer.
2. ceramic polyolefin fire-resisting cable as claimed in claim 1, it is characterised in that：The ceramic polyolefin flame retardant coating
Thickness is 3~10mm.
3. ceramic polyolefin fire-resisting cable as claimed in claim 1, it is characterised in that：The thickness of the insulating barrier be 5~
15mm。
4. ceramic polyolefin fire-resisting cable as claimed in claim 1, it is characterised in that：The thickness of the inner restrictive coating be 3~
10mm。
5. ceramic polyolefin fire-resisting cable as claimed in claim 1, it is characterised in that：The thickness of the external sheath layer be 3~
10mm。
6. ceramic polyolefin fire-resisting cable as claimed in claim 1, it is characterised in that：The first fire-resistant wrapping tape layer and second
The number of plies of fire-resistant wrapping tape layer is 1~4 layer.
7. ceramic polyolefin fire-resisting cable as claimed in claim 1, it is characterised in that：The internal shield thickness be 1~
5mm。
8. ceramic polyolefin fire-resisting cable as claimed in claim 1, it is characterised in that：The external shielding layer thickness be 1~
5mm。
9. ceramic polyolefin fire-resisting cable as claimed in claim 1, it is characterised in that：The metal screen layer thickness be 1~
5mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621267973.2U CN206460797U (en) | 2016-11-23 | 2016-11-23 | A kind of ceramic polyolefin fire-resisting cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621267973.2U CN206460797U (en) | 2016-11-23 | 2016-11-23 | A kind of ceramic polyolefin fire-resisting cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206460797U true CN206460797U (en) | 2017-09-01 |
Family
ID=59692559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621267973.2U Active CN206460797U (en) | 2016-11-23 | 2016-11-23 | A kind of ceramic polyolefin fire-resisting cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206460797U (en) |
-
2016
- 2016-11-23 CN CN201621267973.2U patent/CN206460797U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201802 Shanghai City, Jiading District Nanxiang Town Yongle Village No. 271 Patentee after: Shanghai Kaibo cable special material Co., Ltd Address before: 201802 Shanghai City, Jiading District Nanxiang Town Yongle Village No. 271 Patentee before: SHANGHAI KAIBO SPECIAL CABLE FACTORY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |