CN206877742U - A kind of high fire-retardance fire resisting Special computer cable - Google Patents
A kind of high fire-retardance fire resisting Special computer cable Download PDFInfo
- Publication number
- CN206877742U CN206877742U CN201720606335.7U CN201720606335U CN206877742U CN 206877742 U CN206877742 U CN 206877742U CN 201720606335 U CN201720606335 U CN 201720606335U CN 206877742 U CN206877742 U CN 206877742U
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- Prior art keywords
- fire
- layer
- pair twist
- special computer
- retardance
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Abstract
A kind of high fire-retardance fire resisting Special computer cable, including cable core are the utility model is related to, sets gradually fire-retardant lapping layer, composite shielding enhancement layer, external sheath layer outside cable core from inside to outside, cable core is twisted with packed layer by multiple pair twist unit groups and formed；Pair twist unit group includes pair twist unit and lapping layer, sub-shield, lapping layer outside polyester belt in the polyester belt being orderly arranged outside each of the pair twist unit；Pair twist unit is made up of two insulated wire cores；By conductor and on conductor, wrapped flame retardant coating, extruded insulation layer are formed insulated wire cores successively.High fire-retardance fire resisting Special computer cable provided by the utility model, with excellent LSOH anti-flaming performance, fire resistance, also there is anti-vibration, resistance to compression, impact resistance, resistance to spray performance, under fire condition, it can keep the electric power of certain time and the transmitting of information to run, the development of rescue work is ensured, reduces casualties and property loss to greatest extent, the needs of practical application can be met well.
Description
Technical field
The utility model belongs to field of cable technology, and in particular to a kind of high fire-retardance fire resisting Special computer cable.
Background technology
In recent years, large-scale place of public amusement, factory, mine, mall fire incident took place frequently, and had triggered people to superelevation
The concern of the emphasis such as layer, tunnel, track traffic, large stadium public place safety and worry.NFA security department also builds
Public place flame-retardant mark management system has been found, has improved the access door of public place flame-retardant architecture decorative product
Bank, this measure both provide huge development space for fire-resisting cable market, and also the research and development of fire resisting cable product technology are proposed more
High request.Not only flame retardant effect is poor when actually occurring fire for common cable, and energization can not be ensured once burning.Such as
What in the case of fire, within a certain period of time ensure electric power and communication it is unimpeded, win to greatest extent preciousness rescue when
Between, the injures and deaths of personnel and the loss of lives and properties are reduced, this is people always in the new problem constantly explored.
Utility model content
For above-mentioned problems of the prior art, the purpose of this utility model is that providing one kind can avoid the occurrence of
State the high fire-retardance fire resisting Special computer cable of technological deficiency.
In order to realize above-mentioned purpose of utility model, the technical scheme that the utility model is provided is as follows：
A kind of high fire-retardance fire resisting Special computer cable, including cable core, cable core set gradually fire-retardant wrapped from inside to outside outside
Layer 4, composite shielding enhancement layer 5, external sheath layer 6, cable core are twisted with packed layer 3 by multiple pair twist unit groups and formed；Pair twist unit
Group include pair twist unit and in the polyester belt being orderly arranged outside each of the pair twist unit lapping layer 2-1, sub-shield 2-2,
The outer lapping layer 2-3 of polyester belt；Pair twist unit is made up of two insulated wire cores 1；Insulated wire cores 1 are by conductor 1-1 and on conductor 1-1
Wrapped flame retardant coating 1-2, extruded insulation layer 1-3 are formed successively.
Further, cable core is twisted with packed layer 3 by two pair twist unit groups and formed.
Further, flame retardant coating 1-2 is double-deck Mica tape.
Further, sub-shield 2-2 is that aluminium-plastic tape is wrapped.
Further, composite shielding enhancement layer 5 is that copper wire forms with aramid fiber mixed weaving.
Further, a copper wire is placed with sub-shield 2-2 as drainage thread.
Further, drainage thread area of section >=0.2mm2。
High fire-retardance fire resisting Special computer cable provided by the utility model, have excellent LSOH anti-flaming performance,
Fire resistance, also with anti-vibration, resistance to compression, impact resistance, resistance to spray performance, ensure it under fire condition, cable can keep one
The electric power fixed time and the operation of the transmitting of information, ensure the development of rescue work, reduce to greatest extent casualties and
Property loss, be entirely capable of adapt to airport, hotel, stadiums, library, skyscraper, public entertainment place, subway,
The requirement of the large-scale public arenas such as lower street, the needs of practical application can be met well.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
In figure, 1- insulated wire cores；1-1- conductors；1-2- flame retardant coatings；1-3- insulating barriers；Lapping layer in 2-1- polyester belts；2-
2- sub-shields；The outer lapping layer of 2-3- polyester belts；3- packed layers；The fire-retardant lapping layers of 4-；5- composite shielding enhancement layers；6- oversheaths
Layer.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with the accompanying drawings and specifically
Embodiment is described further to the utility model.It should be appreciated that specific embodiment described herein is only explaining this reality
With new, it is not used to limit the utility model.Based on the embodiment in the utility model, those of ordinary skill in the art are not having
There is the every other embodiment made and obtained under the premise of creative work, belong to the scope of the utility model protection.
As shown in figure 1, a kind of high fire-retardance fire resisting Special computer cable, its structure are：On conductor 1-1 from inside to outside according to
Secondary wrapped flame retardant coating 1-2, extruded insulation layer 1-3, so as to form insulated wire cores 1；Pair twist list is formed by two insulated wire cores 1
Member, set gradually lapping layer 2-1 in polyester belt, sub-shield 2-2 from inside to outside in the outside of the pair twist unit, outside polyester belt
Lapping layer 2-3, so as to form pair twist unit group；By multiple (being preferably two) pair twist unit groups structure is twisted with packed layer 3
Into cable core, fire-retardant lapping layer 4, composite shielding enhancement layer 5, external sheath layer 6 are set gradually from inside to outside outside cable core.
Flame retardant coating 1-2 is double-deck Mica tape；Sub-shield 2-2 is that aluminium-plastic tape is wrapped；Composite shielding enhancement layer 5
Formed for tinned copper wire and aramid fiber mixed weaving；A copper wire is placed with sub-shield 2-2 as drainage thread, drainage thread
Area of section is not less than 0.2mm2。
The utility model has advantages below：
First, conductor 1-1, which is oxygen-free copper bar, draws the wire formed, wire process puts down its surface using structure is pressed
Whole, flame retardant coating 1-2 can closely be attached to conductor 1-1 surfaces, be advantageous to electric fields uniform distribution, reduce cost；
Second, setting flame retardant coating 1-2 outside conductor 1-1, effect is insulating barrier 1-3 and external sheath layer when fire occurs
It is hard that insoluble white is generated in the case that 6 have been burnt by fire, after the wrapped mica tape flame retardant coating 1-2 chance fire on conductor 1-1
Housing silica, has a good insulating properties, and with certain mechanical strength and water-fast, protects during ensureing ignition of cable
Hold the safe operation of certain time；During wrapped mica tape, priority control good mica tape broadband, wrapping angle and tension force, it ensure that
Mica tape is smooth, close；
Third, using IXPE insulating barrier 1-3, the heat-resisting, ageing-resistant, fire-retardant of product, insulating properties are improved
And electric property；
Fourth, the fire-retardant lapping layer 4 of alkali-free glass fibre band and halogen-free flameproof are set by designing outside flame resistant filler layer 3, cable core
The structure of external sheath layer 6, the fire resistance of product is reached A classes, while there is excellent fire resistance；
Fifth, using the pair twist unit of different pitches, the cross-talk between line pair is reduced；Sub-shield 2-2 is answered using plastic-aluminum
Crossed belt is wrapped, and in order to ensure the electrical continuity of shielding, and convenient install is grounded, and a copper is placed with sub-shield 2-2
Silk is used as drainage thread, and drainage thread area of section is not less than 0.2mm2, then overlapping wrapped strata ester film, can so ensure each
Mutually insulated after stranding between pair twist unit, while meet the installation specification requirement of system single-point grounding；Set outside cable core tin plating
The composite shielding enhancement layer 5 of proof copper-wire braided+aramid fiber braiding, makes it not only have excellent tensile property, and keep excellent
Different shielding interference free performance.
Embodiment described above only expresses embodiment of the present utility model, and its description is more specific and detailed, but simultaneously
Therefore the limitation to the utility model patent scope can not be interpreted as.It should be pointed out that the ordinary skill for this area
For personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these belong to this
The protection domain of utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (7)
1. a kind of high fire-retardance fire resisting Special computer cable, it is characterised in that including cable core, set gradually from inside to outside outside cable core
Fire-retardant lapping layer (4), composite shielding enhancement layer (5), external sheath layer (6), cable core are twisted by multiple pair twist unit groups and packed layer (3)
Close and form；Pair twist unit group includes pair twist unit and the lapping layer in the polyester belt being orderly arranged outside each of the pair twist unit
(2-1), sub-shield (2-2), the outer lapping layer (2-3) of polyester belt；Pair twist unit is made up of two insulated wire cores (1)；Insulated wire
By conductor (1-1) and on conductor (1-1), wrapped flame retardant coating (1-2), extruded insulation layer (1-3) are formed core (1) successively.
2. high fire-retardance fire resisting Special computer cable according to claim 1, it is characterised in that cable core is by two pair twist lists
Tuple and the twisted composition of packed layer (3).
3. high fire-retardance fire resisting Special computer cable according to claim 1, it is characterised in that flame retardant coating (1-2) is double
Layer Mica tape.
4. high fire-retardance fire resisting Special computer cable according to claim 1, it is characterised in that sub-shield (2-2) is
Aluminium-plastic tape is wrapped.
5. high fire-retardance fire resisting Special computer cable according to claim 1, it is characterised in that composite shielding enhancement layer
(5) formed for copper wire with aramid fiber mixed weaving.
6. high fire-retardance fire resisting Special computer cable according to claim 1, it is characterised in that in sub-shield (2-2)
A copper wire is placed with as drainage thread.
7. high fire-retardance fire resisting Special computer cable according to claim 1, it is characterised in that drainage thread area of section >=
0.2mm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720606335.7U CN206877742U (en) | 2017-05-26 | 2017-05-26 | A kind of high fire-retardance fire resisting Special computer cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720606335.7U CN206877742U (en) | 2017-05-26 | 2017-05-26 | A kind of high fire-retardance fire resisting Special computer cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206877742U true CN206877742U (en) | 2018-01-12 |
Family
ID=61337587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720606335.7U Expired - Fee Related CN206877742U (en) | 2017-05-26 | 2017-05-26 | A kind of high fire-retardance fire resisting Special computer cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206877742U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109585065A (en) * | 2018-12-04 | 2019-04-05 | 安徽省众和电仪科技有限公司 | High-speed tensile type bus cable |
-
2017
- 2017-05-26 CN CN201720606335.7U patent/CN206877742U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109585065A (en) * | 2018-12-04 | 2019-04-05 | 安徽省众和电仪科技有限公司 | High-speed tensile type bus cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20180112 Termination date: 20200526 |