CN207052351U - A kind of fire-type low-voltage cable - Google Patents
A kind of fire-type low-voltage cable Download PDFInfo
- Publication number
- CN207052351U CN207052351U CN201721079852.XU CN201721079852U CN207052351U CN 207052351 U CN207052351 U CN 207052351U CN 201721079852 U CN201721079852 U CN 201721079852U CN 207052351 U CN207052351 U CN 207052351U
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- Prior art keywords
- fire
- layer
- insulation sleeve
- type low
- cable
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Abstract
The utility model discloses a kind of fire-type low-voltage cable, including protective case, the protective case is provided with flame-retardant layer, screen layer is provided with the flame-retardant layer, the screen layer inner ring, which is circumferentially just arranging, is connected with four groups of springs, the one end of spring away from screen layer is connected with fixed block described in four groups, heat-conducting layer is provided between fixed block described in four groups, and the heat-conducting layer is square structure, multigroup insulation sleeve is provided with the heat-conducting layer, and insulation sleeve is triangular structure, wire is placed with the insulation sleeve, filler is provided between the wire and insulation sleeve, the protective case, positive row are provided with four groups of air vents between flame-retardant layer and screen layer, and waterproof ventilated membrane is equipped with the top and bottom of air vent.In the utility model, make cable that there is the characteristics of fire prevention, and improve the shielding properties and mechanical and physical performance of cable, reduce line signal between and interfere, cable can effectively prevent the burning things which may cause a fire disaster of outside, make cable fire-proof performance more preferably.
Description
Technical field
It the utility model is related to field of cable technology, more particularly to a kind of fire-type low-voltage cable.
Background technology
Cable is typically by several or several groups of wires（Every group at least two）The cable for the similar rope being twisted, every group
Mutually insulated between wire, and be often twisted into around a center, whole outside is surrounded by the coating of high-insulation.Cable has
Interior energization, the feature of external insulation, cable have power cable, control cable, compensating cable, shielded cable, high-temperature cable, computer
Cable, signal cable, coaxial cable, fire-resisting cable, cable for ship, mine cable, aluminium alloy cable etc..They are all by list
Stock or stranded conductor and insulating barrier composition, for connecting circuit, electrical equipment etc..
As the scale in the fast development of China's economy, city is increasing, City fireproof shows safely even more important,
Especially present skyscraper is more and more, and the personnel in building are more and more, ensures that the fire safety contradiction of the person and property is outstanding
For protrusion.Traditional cable fire protecting performance is bad, is easier on fire by external action, therefore needs a kind of environment-friendly fireproof low pressure badly
Cable.
Utility model content
The purpose of this utility model is and a kind of fire-type low pressure proposed in order to solve shortcoming present in prior art
Cable.
To achieve these goals, the utility model employs following technical scheme：
A kind of fire-type low-voltage cable, including protective case, the protective case are provided with flame-retardant layer, screen are provided with the flame-retardant layer
Layer is covered, the screen layer inner ring, which is circumferentially just arranging, is connected with four groups of springs, one end connection of the spring described in four groups away from screen layer
There is fixed block, heat-conducting layer is provided between fixed block described in four groups, and the heat-conducting layer is square structure, is set in the heat-conducting layer
Have multigroup insulation sleeve, and insulation sleeve is triangular structure, be placed with wire in the insulation sleeve, the wire and insulation sleeve it
Between be provided with filler, positive row are provided with four groups of air vents between the protective case, flame-retardant layer and screen layer, and the top of air vent with
Bottom is equipped with waterproof ventilated membrane.
Preferably, the material of the insulation sleeve is high density crosslinked polyethylene.
Preferably, the insulation sleeve is three-layer co-extruded skin-bubble-skin physical foam insulation.
Preferably, the protective case is made up of fluorocarbon resin.
Preferably, the screen layer is formed using copper wire or tinned copper wire braiding, and copper wire or tinned copper wire diameter should be big
In equal to 0.1mm, and weave tight ness rating and should be greater than being equal to 85%.
Preferably, the waterproof ventilated membrane is made up of polytetrafluoroethylene (PTFE).
Preferably, the filler is mineral matter rock wool packed layer.
Preferably, the wall thickness of the flame-retardant layer is not less than 0.5mm.
Compared with prior art, the beneficial effects of the utility model are：In the utility model, cable is set to have fireproof special
Point, the air flow in cable can be helped, cable is maintained at certain temperature, avoided temperature too high and fire occurs, and
Screen layer is individually shielded to carrying out to each line using copper wire or tinned copper wire braiding, can improve the shielding properties of cable and mechanical thing
Rationality energy, reduce line signal between and interfere, by protective case and flame-retardant layer, effectively prevent the burning things which may cause a fire disaster of outside, make cable
Fire protecting performance is more preferably.
Brief description of the drawings
Fig. 1 be the utility model proposes a kind of fire-type low-voltage cable structural representation；
Fig. 2 be the utility model proposes a kind of spring of fire-type low-voltage cable and the structural representation of fixed block.
In figure：1 protective case, 2 flame-retardant layers, 3 screen layers, 4 air vents, 5 waterproof ventilated membranes, 6 springs, 7 fixed blocks, 8 heat conduction
Layer, 9 insulation sleeves, 10 wires, 11 fillers.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.
Reference picture 1-2, a kind of fire-type low-voltage cable, including protective case 1, protective case 1 are made up of fluorocarbon resin, protective case
1 is provided with flame-retardant layer 2, and the wall thickness of flame-retardant layer 2 is not less than 0.5mm, is provided with screen layer 3 in flame-retardant layer 2, the use copper wire of screen layer 3 or
Tinned copper wire braiding forms, and copper wire or tinned copper wire diameter should be greater than being equal to 0.1mm, and weaves tight ness rating and should be greater than being equal to
85%, the inner ring of screen layer 3, which is circumferentially just arranging, is connected with four groups of springs 6, and the four groups of one end of spring 6 away from screen layer 3 are connected with fixation
Block 7, heat-conducting layer 8 is provided between four groups of fixed blocks 7, and heat-conducting layer 8 is square structure, and multigroup insulation sleeve is provided with heat-conducting layer 8
9, and insulation sleeve 9 is triangular structure, and wire 10 is placed with insulation sleeve 9, the material of insulation sleeve 9 is crosslinked poly- second for high density
Alkene, insulation sleeve 9 are three-layer co-extruded skin-bubble-skin physical foam insulation, and filler 11 is provided between wire 10 and insulation sleeve 9, is filled out
It is mineral matter rock wool packed layer to fill thing 11, and positive row are provided with four groups of air vents 4 between protective case 1, flame-retardant layer 2 and screen layer 3, and logical
The top and bottom of air holes 4 are equipped with waterproof ventilated membrane 5, and waterproof ventilated membrane 5 is made up of polytetrafluoroethylene (PTFE), in the utility model,
Make cable that there is the characteristics of fire prevention, the air flow in cable can be helped, cable is maintained at certain temperature, avoid temperature
It is too high and fire occurs, and screen layer 3 is individually shielded to carrying out to each line using copper wire or tinned copper wire braiding, can improve cable
Shielding properties and mechanical and physical performance, reduce line signal between and interfere, it is effectively anti-by protective case 1 and flame-retardant layer 2
Only outside burning things which may cause a fire disaster, makes cable fire-proof performance more preferably.
Operation principle：By passage 4 and waterproof ventilated membrane 5, maintained the circulation of air inside cable, and do not have foreign object
Into influenceing the performance of wire 10, spring 6 has cushioning effect to cable inside, and can accelerate air flow, more effectively anti-
Fire, and screen layer 3 using copper wire or tinned copper wire braiding to each line to carry out it is individually shielded, can improve cable shielding properties and
Mechanical and physical performance, reduce line signal between and interfere, by protective case 1 and flame-retardant layer 2, effectively prevent outside burning things which may cause a fire disaster
Interference, makes cable fire-proof performance more preferably.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model discloses, according to this practicality
New technical scheme and its utility model design are subject to equivalent substitution or change, should all cover in protection model of the present utility model
Within enclosing.
Claims (8)
1. a kind of fire-type low-voltage cable, including protective case（1）, it is characterised in that the protective case（1）Provided with flame-retardant layer（2）,
The flame-retardant layer（2）It is interior to be provided with screen layer（3）, the screen layer（3）Inner ring, which is circumferentially just arranging, is connected with four groups of springs（6）, four
The group spring（6）Away from screen layer（3）One end be connected with fixed block（7）, fixed block described in four groups（7）Between be provided with heat conduction
Layer（8）, and the heat-conducting layer（8）For square structure, the heat-conducting layer（8）It is interior to be provided with multigroup insulation sleeve（9）, and insulation sleeve
（9）For triangular structure, the insulation sleeve（9）Inside it is placed with wire（10）, the wire（10）With insulation sleeve（9）Between set
There is filler（11）, the protective case（1）, flame-retardant layer（2）And screen layer（3）Between positive row be provided with four groups of air vents（4）, and it is logical
Air holes（4）Top and bottom be equipped with waterproof ventilated membrane（5）.
A kind of 2. fire-type low-voltage cable according to claim 1, it is characterised in that the insulation sleeve（9）Material be
High density crosslinked polyethylene.
A kind of 3. fire-type low-voltage cable according to claim 1, it is characterised in that the insulation sleeve（9）For three layers altogether
Crowded skin-bubble-skin physical foam insulation.
A kind of 4. fire-type low-voltage cable according to claim 1, it is characterised in that the protective case（1）By fluorine carbon tree
Fat is made.
A kind of 5. fire-type low-voltage cable according to claim 1, it is characterised in that the screen layer（3）Using copper wire
Or tinned copper wire braiding forms, and copper wire or tinned copper wire diameter should be greater than being equal to 0.1mm, and weave tight ness rating and should be greater than being equal to
85%。
A kind of 6. fire-type low-voltage cable according to claim 1, it is characterised in that the waterproof ventilated membrane（5）By gathering
Tetrafluoroethene is made.
A kind of 7. fire-type low-voltage cable according to claim 1, it is characterised in that the filler（11）For mineral matter
Rock wool packed layer.
A kind of 8. fire-type low-voltage cable according to claim 1, it is characterised in that the flame-retardant layer（2）Wall thickness not
Less than 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721079852.XU CN207052351U (en) | 2017-08-28 | 2017-08-28 | A kind of fire-type low-voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721079852.XU CN207052351U (en) | 2017-08-28 | 2017-08-28 | A kind of fire-type low-voltage cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207052351U true CN207052351U (en) | 2018-02-27 |
Family
ID=61503692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721079852.XU Expired - Fee Related CN207052351U (en) | 2017-08-28 | 2017-08-28 | A kind of fire-type low-voltage cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207052351U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116092730A (en) * | 2022-12-26 | 2023-05-09 | 江苏润华电缆股份有限公司 | Double-layer shielding high-temperature-resistant flame-retardant computer cable |
-
2017
- 2017-08-28 CN CN201721079852.XU patent/CN207052351U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116092730A (en) * | 2022-12-26 | 2023-05-09 | 江苏润华电缆股份有限公司 | Double-layer shielding high-temperature-resistant flame-retardant computer 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: 20180227 Termination date: 20180828 |