CN206864212U - A kind of fire resistant flexible rat-and-ant proof cable - Google Patents
A kind of fire resistant flexible rat-and-ant proof cable Download PDFInfo
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- CN206864212U CN206864212U CN201720801809.3U CN201720801809U CN206864212U CN 206864212 U CN206864212 U CN 206864212U CN 201720801809 U CN201720801809 U CN 201720801809U CN 206864212 U CN206864212 U CN 206864212U
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- fire resistant
- ant proof
- resistant flexible
- cable
- proof cable
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Abstract
The utility model provides a kind of fire resistant flexible rat-and-ant proof cable, belongs to field of cable technology.It solve the problems, such as existing cable flexibility it is poor so as to bend when influence cable electrical property.This fire resistant flexible rat-and-ant proof cable, including oversheath, inner sheath and an at least copper core conductor, insulating barrier is arranged with the copper core conductor, it is characterised in that：The inner liner of ceramic fireproof polyolefin is additionally provided with the inner sheath, above-mentioned insulating barrier and copper core conductor are arranged in the inner liner.This fire resistant flexible rat-and-ant proof cable has that flexibility is good, fire resistant effect is good and the advantages of rat-and-ant proof.
Description
Technical field
The utility model belongs to field of cable technology, is related to a kind of fire resistant flexible rat-and-ant proof cable.
Background technology
Existing cable structure generally comprises an at least copper core conductor, the insulating barrier being coated on outside copper core conductor and copper shield
Set, oversheath, its insulating barrier are made for magnesium oxide material, and copper sheath is molded for drawing.The problem of it is present be：Overall electricity
Cable structure is very hard, and one is susceptible to natural force and electrodynamic destruction；Second, production length is shorter, needed in actual use
Increase the transition joint of more fire resistance difference, so as to greatly reduce the efficiency of transmission of electricity, power transmission failure hidden danger point is more, easily
Break down.
It is shorter, it is necessary to the problems such as more transition joint in order to solve above-mentioned production length, it is existing also to have the gold developed
Belong to sheath inorganic mineral insulation cable, although unit cable is most long up to 2000 meters, without transition joint, meet that distribution is grown
Degree needs.But remain on and there are problems that：Flexibility of its cable itself is inadequate, easily causes IDC in bending, influences
Electrical property, and it is easy to crack in weld, while in welding, high welding temperature can cause to damage, it may appear that electric cable stoppage.
The content of the invention
The purpose of this utility model is above mentioned problem be present for existing technology, it is proposed that one kind can production length compared with
Long and soft property is not preferably so as to interfere with the fire resistant flexible rat-and-ant proof cable of electrical property in bending.
The purpose of this utility model can be realized by following technical proposal：A kind of fire resistant flexible rat-and-ant proof cable, including
Oversheath, inner sheath and an at least copper core conductor, insulating barrier is arranged with the copper core conductor, it is characterised in that：In described
The inner liner of ceramic fireproof polyolefin is additionally provided with sheath, above-mentioned insulating barrier and copper core conductor are arranged on the inner liner
It is interior.
Full glass fibers are filled in a kind of above-mentioned fire resistant flexible rat-and-ant proof cable, between described inner liner and insulating barrier
Dimension.
In a kind of above-mentioned fire resistant flexible rat-and-ant proof cable, described insulating barrier is that synthetic mica is combined system with glass cloth
Into synthetic mica tape.
In a kind of above-mentioned fire resistant flexible rat-and-ant proof cable, described inner sheath is using the vertical bag welding embossing system of copper strips
Into embossing copper strips.
In a kind of above-mentioned fire resistant flexible rat-and-ant proof cable, described oversheath is to be protected outside low smoke halogen-free flame-retardant polyolefin
Set.
Compared with prior art, this fire resistant flexible rat-and-ant proof cable has following several advantages：
1st, the inner liner of ceramic fireproof polyolefin has good mechanical performance and bending strength, has well
Flexibility, so as to improve Integral cable flexibility, and there is fireproof high-temperature resistant；
2nd, embossing copper strips has preferably soft, bending property and fire protecting performance good, so as to improve the flexibility of Integral cable
Property and fire-proof function, with reference to the liner layer structure of ceramic fireproof polyolefin, so as to which Integral cable flexibility is more preferable, bending
When do not interfere with electrical property.
Brief description of the drawings
Fig. 1 is cross-sectional view of the present utility model.
In figure, 1, copper core conductor；2nd, insulating barrier；3rd, glass fibre；4th, inner liner；5th, inner sheath；6th, oversheath.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in figure 1, this fire resistant flexible rat-and-ant proof cable includes oversheath 6, inner sheath 5, inner liner 4 and an at least copper
Core conductor 1, oversheath 6 are low smoke halogen-free flame-retardant polyolefin oversheath 6.The copper core conductor 1 of the present embodiment is three, every copper core
It is arranged on conductor 1 and is coated with insulating barrier 2, between the insulating barrier 2 on three copper core conductors 1 and between insulating barrier 2 and inner liner 4
Fill out and be filled with glass fibre 3, the good insulating of glass fibre 3, heat resistance are strong, corrosion resistance is good and high mechanical strength, so as to it is exhausted
Edge layer 2, which coordinates, improves insulation effect, and high mechanical strength make it that bending effect is good.
Wherein, to be made by ceramic fireproof polyolefin, ceramic fireproof polyolefin has inner liner 4
Good mechanical performance and bending strength, flexibility is good, even in by the bending strength for also having 4Mpa or so after burning.Together
When with good security performance, during burning do not prolong burning, do not drip, asepsis environment-protecting.Ceramic fireproof polyolefin is occurring
In the case of fire, from that can form ceramic inorganic matter in burning, high temperature resistant is up to 1800 DEG C, so as to which not only flexibility is good
And high temperature resistant, there is good flameproof effect.
Insulating barrier 2 is that the synthetic mica tape with reference to made of, the main material of insulating barrier 2 are synthesis cloud to synthetic mica with glass cloth
Mother, with glass cloth with reference to made of synthetic mica tape, by bonding and drying, different rule are cut further according to needs of production
Lattice.Synthetic mica tape except with natural mica band the coefficient of expansion it is small, dielectric strength is big, resistivity is high and dielectric constant uniformly etc.
Outside characteristic, it is most prominent the characteristics of be temperature classification height, it is resistance to can reach horizontal (the 950 1 1000 DEG C) synthetic mica tape of A levels fire resisting
Temperature is more than 1000 DEG C, and thickness range is in 0.08~0.15mm, maximum supply width 920mm.In 950-1000 DEG C of combustion of flame temperature
Burn 3 hours, the integrality of energy holding circuit.
Inner sheath 5 is using embossing copper strips made of the vertical bag welding embossing of copper strips, using the knot of the vertical bag welding embossing of copper strips
Structure, indulging bag welding embossing copper sheath has that soft, bending property and fire protecting performance are good, low smoke and zero halogen, fire-retardant, corrosion-resistant sheath.
Inner sheath 5 will not be burned at once during generation fire, and LSZH during burning, corrosion resistance is strong, harmless.The vertical bag of copper strips
The structure for welding embossing is also optimal shielding protection layer, can both prevent interference of the cable to other cables in itself, and can prevent again
External electromagnetic field disturbs.Meanwhile copper strips has good rat-and-ant proof function, adapts to the laying of some Special sections.
Its packed layer of glass fibre 3, inner liner 4, inner sheath 5 are respectively provided with higher mechanical performance, and bending flexibility is good, its
Three's respective outer side edges greatly improve the mechanical performance and flexibility of Integral cable, so that cable bend will not shadow when installing
The overall performance electrical performance of cable is rung, is also not in cracking situation in weld.
Insulating barrier 2, the packed layer of glass fibre 3, inner liner 4 and the structure of inner sheath 5 are respectively provided with higher heat resistance, resistance to height
Temperature, the combination of its structure coordinate the fire resistant effect for greatly improving Integral cable so that cable has preferably fire prevention
Effect.During welding, high welding temperature will not cause to damage to cable, ensure the integrality of cable.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Claims (5)
1. a kind of fire resistant flexible rat-and-ant proof cable, including oversheath (6), inner sheath (5) and an at least copper core conductor (1), institute
State and insulating barrier (2) be arranged with copper core conductor (1), it is characterised in that：Ceramic fireproof is additionally provided with the inner sheath (5)
The inner liner (4) of polyolefin, above-mentioned insulating barrier (2) and copper core conductor (1) are arranged in the inner liner (4).
A kind of 2. fire resistant flexible rat-and-ant proof cable according to claim 1, it is characterised in that described inner liner (4) and
Full glass fibre (3) is filled between insulating barrier (2).
3. a kind of fire resistant flexible rat-and-ant proof cable according to claim 2, it is characterised in that described insulating barrier (2) is
Synthetic mica synthetic mica tape with reference to made of with glass cloth.
A kind of 4. fire resistant flexible rat-and-ant proof cable according to claim 1 or 2 or 3, it is characterised in that described inner sheath
(5) it is using embossing copper strips made of the vertical bag welding embossing of copper strips.
5. a kind of fire resistant flexible rat-and-ant proof cable according to claim 4, it is characterised in that described oversheath (6) is
Low smoke halogen-free flame-retardant polyolefin oversheath (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720801809.3U CN206864212U (en) | 2017-07-04 | 2017-07-04 | A kind of fire resistant flexible rat-and-ant proof cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720801809.3U CN206864212U (en) | 2017-07-04 | 2017-07-04 | A kind of fire resistant flexible rat-and-ant proof cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206864212U true CN206864212U (en) | 2018-01-09 |
Family
ID=60829467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720801809.3U Active CN206864212U (en) | 2017-07-04 | 2017-07-04 | A kind of fire resistant flexible rat-and-ant proof cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206864212U (en) |
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2017
- 2017-07-04 CN CN201720801809.3U patent/CN206864212U/en active Active
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