CN207009134U - A kind of track traffic flame-proof fire resistant signal cable - Google Patents
A kind of track traffic flame-proof fire resistant signal cable Download PDFInfo
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- CN207009134U CN207009134U CN201720903042.5U CN201720903042U CN207009134U CN 207009134 U CN207009134 U CN 207009134U CN 201720903042 U CN201720903042 U CN 201720903042U CN 207009134 U CN207009134 U CN 207009134U
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Abstract
The utility model discloses a kind of track traffic flame-proof fire resistant signal cable, including some cable cores and it is wrapped in outermost fire-retardant outer jacket, also include the flame retardant coating for being layered parcel from the inside to the outside between cable core and fire-retardant outer jacket, screen layer, flame-retardant separation layer and armor, the cable core is twisted by some insulated wire cores, the insulated wire cores are made up of conductor outer wrapping flame-retardant insulating barrier, screen layer is bonded flame-retardant polyolefin set by the aluminium-plastic tape for indulging packet shaping or combined by aluminium sheath bonding flame-retardant polyolefin set, the flame-retardant separation layer uses polyolefin set, two layers of steel band is wrapped inside and outside the armor use forms, the fire-retardant outer jacket is the cyclic structure that low-smoke halide-free fireproof composite polyolefine material extrudes.This cable have simple in construction, flame-retardant superior performance, fire continue in the case of remain to securely and reliably work the advantages of.
Description
Technical field
It the utility model is related to a kind of cable, and in particular to a kind of track traffic flame-proof fire resistant signal cable.
Background technology
The high speed development of urban track traffic, the situation of urban traffic blocking is alleviated significantly, while also to city rail
The safety and reliability of traffic circulation proposes higher requirement.City rail traffic signal system is to ensure train operation peace
Entirely, train traffic control and train automation are realized, improves the critical system of conevying efficiency.Signal cable is as in signal system
Control information, the passage of monitoring information are transmitted between each signalling arrangement and control device, directly affects whole signal system
Safety and reliability.In addition, signal cable uses in densely populated underground more, once there is situation about failing, just
The interruption of subway circulation may be caused, the personal safety to passenger threatens or even threat to life.
In the prior art, there is problems with signal cable used in city rail traffic signal system：1. due to mesh
The preceding signal cable used is more, and mainly sheath uses LSOH anti-flaming material based on halide-free low-smoke fireproof cable, insulation
Layer material mainly uses high-density polyethylene material.During generation fire, although the sheath of cable can delay whole cable fire
Rate of propagation, but in fire sustained combustion, sheath can be broken through, insulation is lighted, causes cable not work.2. traditional flame proof electrical
The flame retardant coating of cable is generally formed using fire-resistant isinglass belt is wrapped, slow around speed packet, it is wrapped during mica powder easily come off, influence
Fire resisting effect；Defocused fire-resistant isinglass belt embrittlement is burnt, easy to fall off when running into vibrations and spraying, fire resisting effect is poor, it is difficult to protect
Card signal system remains to safe and smooth operation in the case of fire.
Utility model content
The utility model has structure in view of the above-mentioned problems, providing a kind of track traffic flame-proof fire resistant signal cable
Simply, flame-retardant superior performance, fire continue in the case of remain to securely and reliably work the advantages of.
The utility model solve technical problem technical scheme be：A kind of track traffic flame-proof fire resistant signal cable, bag
Include some cable cores and be wrapped in outermost fire-retardant outer jacket, in addition to divide from the inside to the outside between cable core and fire-retardant outer jacket
Flame retardant coating, screen layer, flame-retardant separation layer and the armor of layer parcel, the cable core are twisted by some insulated wire cores,
The insulated wire cores are made up of conductor outer wrapping flame-retardant insulating barrier, and screen layer is bonded resistance by the aluminium-plastic tape for indulging packet shaping
Combustion fire-resistant polyolefin set is combined by aluminium sheath bonding flame-retardant polyolefin set, and the flame-retardant separation layer is using poly-
Alkene set, the armor use inside and outside two layers of steel band is wrapped forms, the fire-retardant outer jacket is low smoke halogen-free flame-retardant polyolefin
The cyclic structure that material extrudes.
Further, the flame retardant coating for two-layer ceramic chemoprevention fire fire-resistant silicon rubber composite band is overlapping wrapped outside cable core and
Into cyclic structure.
Further, the cyclic structure that flame-retardant insulating barrier extrudes for low smoke and zero halogen heat-insulating, fire-preventing CABLE MATERIALS, institute
Low smoke and zero halogen heat-insulating, fire-preventing CABLE MATERIALS is stated mainly to be formed by polyolefin, fire retardant and refractory composition.
Further, including four cable cores.
Further, the cable core is twisted by two or four insulated wire cores.
The beneficial effects of the utility model：
1. flame-retardant insulating barrier is extruded using low smoke and zero halogen heat-insulating, fire-preventing CABLE MATERIALS and formed, using common extrusion apparatus both
It can complete to process, unlike fire-resistant isinglass belt needs to process using special lapping equipment, technique is simple to operation, insulated wire cores matter
Measure reliable and stable, ensure that the stability of cable following process, can be generated under relatively low flame temperature hard
Housing, completely cut off extraneous flame, protection circuit either vibrations or sprays in the case where fire endurance period burns, remains to protect
Hold unimpeded.
2. flame retardant coating is made up of two-layer ceramic chemoprevention fire fire-resistant silicon rubber composite band, cable core can both be tightened and be fixed into circle
Shape, ensure the stability of cable following process, fire resisting can be played a part of again, it is ensured that cable core structure in a fire
Remain to keep stable, continuous firing.
3. the flame-retardant polyolefin of flame-retardant separation layer, which covers, uses low smoke and zero halogen heat-insulating, fire-preventing CABLE MATERIALS, easy processing,
Can generate hard housing under relatively low flame temperature, it is not only heat-insulated but also prevent fires, protect internal cable core, it is ensured that circuit it is normal
Operation.
4. on the one hand, forming three layers of fireproof construction using flame-retardant insulating barrier, flame retardant coating and flame-retardant separation layer, lead to
Cross three layers of fireproof construction and hard housing protection cable core is generated under continuous high temperature；On the other hand, using flame-retardant insulating barrier,
Flame-retardant separation layer, fire-retardant outer jacket form three layers of flame retarding construction, by the burning velocity of three layers of flame retarding construction it is slow the characteristics of,
Burning velocity of the flame on cable be slow down so as to protect cable.
By the way that the burning velocity of fire-retardant outer jacket is slow, flame is small, combustion of the flame to cable is slow down from the outermost end of cable
Burn, after fire-retardant outer jacket is burned out, can be generated by flame-retardant separation layer in long-term fire hard
Housing, protect internal cable core indeformable, further remaining flame heat regulating stopped by flame retardant coating, passes through flame-retardant
Insulating barrier realizes last one of fire-proof curtain, if outer layer still has remaining flame combustion to arrive flame-retardant insulating barrier after stopping, hinders
Combustion refractory insulating layer generates stiff shell at high temperature, has both prevented that inner conductor from being burnt, can keep the shape of inner conductor again
State is unaffected, keeps the function of conductor propagation signal, fire is isolated successively by four layers of flame retarding construction, effectively delays fire
The time that flame spreads along cable, extend the time of cable continuous firing in high-temp combustion environment, possess efficient fire-retardant resistance to
Fiery ability.
Formed 5. two layers of steel band is wrapped inside and outside armor use, make use of the relatively stable performance of steel at high temperature, prevented
Stop cable in a fire to be crumpled.
Brief description of the drawings
Fig. 1 is the structural representation of the first embodiment of the present utility model；
Fig. 2 is the structural representation of second of embodiment of the present utility model；
In figure, 1, insulated wire cores, 101, conductor, 102, flame-retardant insulating barrier, 2, cable core, 3, flame retardant coating, 4, screen layer,
5th, flame-retardant separation layer, 6, armor, 7, fire-retardant outer jacket.
Embodiment
With reference to Figure of description 1, accompanying drawing 2 to a kind of track traffic of the present utility model with flame-proof fire resistant signal cable make with
Lower detailed description.Material involved by the utility model is current material, and its technical scheme is not also entered in itself to material
Any improvement of row.
It is the first embodiment of the present utility model as shown in Figure 1, a kind of track traffic flame-proof fire resistant signal cable, wraps
Include four cable cores 2 and be wrapped in outermost fire-retardant outer jacket 7, in addition between cable core 2 and fire-retardant outer jacket 7 by it is interior extremely
Flame retardant coating 3, screen layer 4, flame-retardant separation layer 5 and the armor 6 of outer layering parcel, the cable core 2 is by four insulated wire cores 1
It is twisted, the insulated wire cores 1 are made up of the outer wrapping flame-retardant insulating barrier 102 of conductor 101, and screen layer 4 is by indulging packet shaping
Aluminium-plastic tape bonding flame-retardant polyolefin set or combined by aluminium sheath bonding flame-retardant polyolefin set, the resistance
Fire fire resisting separation layer 5 and use polyolefin set, easy processing, hard housing can be generated under relatively low flame temperature, it is both heat-insulated
Prevent fires again, protect internal cable core, it is ensured that the normal operation of circuit, the armor 6 use inside and outside two layers of steel band is wrapped forms, profit
With relatively stable performance just at high temperature, it is therefore prevented that cable is crumpled in a fire, and the fire-retardant outer jacket is low
The cyclic structure that cigarette halogen-free anti-flaming polyolefin material extrudes.Using flame-retardant insulating barrier 102, flame retardant coating 3 and fire-retardant resistance to
Fire screen absciss layer 5 forms three layers of fireproof construction, and hard housing is generated under continuous high temperature by three layers of fireproof construction protects cable core,
Three layers of flame retarding construction are formed using flame-retardant insulating barrier 102, flame-retardant separation layer 5, fire-retardant outer jacket 7, pass through three layers of resistance
The characteristics of burning velocity of combustion structure is slow, slow down burning velocity of the flame on cable so as to protect cable, by fire-retardant outer
The burning velocity of sheath 7 is slow, flame is small, burning of the flame to cable is slow down from the outermost end of cable, in fire-retardant outer jacket quilt
After burning-up, hard housing can be generated in long-term fire by flame-retardant separation layer 5, protect internal cable
Core is indeformable, and further remaining flame heat regulating is stopped by flame retardant coating 3, realized most by flame-retardant insulating barrier 102
One of fire-proof curtain afterwards, if outer layer still has remaining flame combustion to arrive flame-retardant insulating barrier 102, flame-retardant insulation after stopping
Layer 102 generates stiff shell at high temperature, has both prevented that inner conductor 101 from being burnt, can keep the form of inner conductor 101 again
It is unaffected, the function of the transmission signal of conductor 101 is kept, fire is isolated successively by four layers of flame retarding construction, effectively delayed
The time that flame spreads along cable, extend the time of cable continuous firing in high-temp combustion environment, possess efficient fire-retardant
Refractory ability.
The flame retardant coating 3 is two-layer ceramic chemoprevention fire fire-resistant silicon rubber composite band overlapping wrapped ring formed outside cable core 2
Shape structure, cable core 2 can both be tightened and be fixed into circle, and ensured the stability of cable following process, can rise again
To the effect of fire resisting, it is ensured that structure remains to keep stable cable core 2 in a fire, continuous firing.
The cyclic structure that flame-retardant insulating barrier 102 extrudes for low smoke and zero halogen heat-insulating, fire-preventing CABLE MATERIALS, the low cigarette
Halogen heat-insulating, fire-preventing CABLE MATERIALS is mainly formed by polyolefin, fire retardant and refractory composition, both may be used using common extrusion apparatus
Processing is completed, unlike fire-resistant isinglass belt needs to process using special lapping equipment, technique is simple to operation, insulated wire cores quality
It is reliable and stable, the stability of cable following process is ensure that, can be generated under relatively low flame temperature hard
Housing, completely cut off extraneous flame, protection circuit either vibrations or spray, remains to keep in the case where fire endurance period burns
It is unimpeded.
It is illustrated in figure 2 second of embodiment of the present utility model, the difference of second of embodiment and the first embodiment
It is, the cable core 2 is twisted by two insulated wire cores 1.
Although above-mentioned the embodiment of utility model is described with reference to accompanying drawing, not to the utility model
The limitation of protection domain, on the basis of the technical solution of the utility model, those skilled in the art need not pay creativeness
The various modifications or deformation that work can be made are still within the scope of protection of the utility model.
Claims (5)
1. a kind of track traffic flame-proof fire resistant signal cable, including some cable cores (2) and it is wrapped in outermost fire-retardant outer shield
Layer (7), it is characterised in that also include the flame retardant coating for being layered parcel from the inside to the outside between cable core (2) and fire-retardant outer jacket (7)
(3), screen layer (4), flame-retardant separation layer (5) and armor (6), the cable core (2) it is twisted by some insulated wire cores (1) and
Into the insulated wire cores (1) are made up of conductor (101) outer wrapping flame-retardant insulating barrier (102), and screen layer (4) is bundled into by vertical
The aluminium-plastic tape bonding flame-retardant polyolefin set of shape is combined by aluminium sheath bonding flame-retardant polyolefin set, described
Flame-retardant separation layer (5) uses polyolefin set, the armor (6) use inside and outside two layers of steel band is wrapped forms, it is described fire-retardant
Outer jacket (7) is the cyclic structure that low-smoke halide-free fireproof composite polyolefine material extrudes.
A kind of 2. track traffic flame-proof fire resistant signal cable as claimed in claim 1, it is characterised in that the flame retardant coating
(3) it is two-layer ceramic chemoprevention fire fire-resistant silicon rubber composite band overlapping wrapped cyclic structure formed outside cable core (2).
3. a kind of track traffic flame-proof fire resistant signal cable as claimed in claim 2, it is characterised in that flame-retardant insulate
The cyclic structure that layer (102) extrudes for low smoke and zero halogen heat-insulating, fire-preventing CABLE MATERIALS, the low smoke and zero halogen heat-insulating, fire-preventing CABLE MATERIALS
Mainly formed by polyolefin, fire retardant and refractory composition.
4. a kind of track traffic flame-proof fire resistant signal cable as claimed in claim 1, it is characterised in that including described in four
Cable core (2).
A kind of 5. track traffic flame-proof fire resistant signal cable as claimed in claim 1, it is characterised in that the cable core (2)
It is twisted by two or four insulated wire cores (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720903042.5U CN207009134U (en) | 2017-07-24 | 2017-07-24 | A kind of track traffic flame-proof fire resistant signal cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720903042.5U CN207009134U (en) | 2017-07-24 | 2017-07-24 | A kind of track traffic flame-proof fire resistant signal cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207009134U true CN207009134U (en) | 2018-02-13 |
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ID=61454605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720903042.5U Active CN207009134U (en) | 2017-07-24 | 2017-07-24 | A kind of track traffic flame-proof fire resistant signal cable |
Country Status (1)
| Country | Link |
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| CN (1) | CN207009134U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108648865A (en) * | 2018-05-09 | 2018-10-12 | 安徽意力电缆有限公司 | A kind of high temperature resistant, anti-vibration rail transit locomotive cable |
| CN108648864A (en) * | 2018-05-09 | 2018-10-12 | 安徽意力电缆有限公司 | A kind of rail traffic flame-proof fire resistant signal cable |
| CN108682508A (en) * | 2018-05-09 | 2018-10-19 | 安徽意力电缆有限公司 | A kind of power cable for rail transit |
-
2017
- 2017-07-24 CN CN201720903042.5U patent/CN207009134U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108648865A (en) * | 2018-05-09 | 2018-10-12 | 安徽意力电缆有限公司 | A kind of high temperature resistant, anti-vibration rail transit locomotive cable |
| CN108648864A (en) * | 2018-05-09 | 2018-10-12 | 安徽意力电缆有限公司 | A kind of rail traffic flame-proof fire resistant signal cable |
| CN108682508A (en) * | 2018-05-09 | 2018-10-19 | 安徽意力电缆有限公司 | A kind of power cable for rail transit |
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