CN205609254U - Flame -retardant cable - Google Patents
Flame -retardant cable Download PDFInfo
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- CN205609254U CN205609254U CN201620169808.7U CN201620169808U CN205609254U CN 205609254 U CN205609254 U CN 205609254U CN 201620169808 U CN201620169808 U CN 201620169808U CN 205609254 U CN205609254 U CN 205609254U
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Abstract
The utility model discloses a flame -retardant cable, including oversheath, inner sheath, fire -retardant layer, glass fiber layer, external insulation layer, conductor, the inner insulating layer, shielding layer and inorganic filler material, oversheath, fire -retardant layer, glass fiber layer, external insulation layer and inner sheath set gradually in the extroversion, the inboard packing of inner sheath has inorganic filler material, wear to be equipped with four piece at least conductors in the inorganic filler material, the inner insulating layer and shielding layer have been wrapped up in proper order to the outside of conductor. The utility model discloses a cable jacket and inner sheath all adopt all better polyvinyl chloride materials of elasticity and compliance, can reduce corruption amazing to people's organ and equipment by a wide margin, fire -retardant layer has strengthened the fire -retardant fire behavior of cable, the glass fiber layer can strengthen the atress ability of cable, makes its tensile more, the utility model discloses simple structure, the fire resistance improves greatly, can not produce a large amount of smog during the burning, improves visibility, avoids the toxic gas to cause the injury to people simultaneously.
Description
Technical field
This utility model relates to a kind of cable, specifically a kind of flame retardant cable.
Background technology
The fast development of country be unable to do without the development of communications industry, it is always the most important thing to person-to-person communication greatly to state wife and children, the development of communications industry be unable to do without the development of electric wire, people's life is not fee from the generation having fire, fire can burn cable and burning due to cable, mutually short circuit can be caused to cause bigger fire between the electric wire close to obtaining, so needing to design the cable of anti-flammability.Flame retardant cable is the most likely burned and can not run, but can stop spreading of the intensity of a fire.Generally, electric wire is just in case catching fire, burning can be limited in subrange, do not produce and spread, keep other various equipment, avoid resulting in greater loss, the method that flame-retardant electric wire and cable typically uses is exactly in insulation, the material such as sheath and filling adds the halogenide containing halogen and metal-oxide, evaluate from fire-retardant angle, this is fabulous method, but, owing to these materials containing halogenide, substantial amounts of smog and hydrogen halide is discharged when burning, so, low visibility during fire, safe escape and fire-fighting to personnel bring the biggest obstruction, people dies of asphyxiation for toxic gas the most more, so the improvement design of flame retardant cable is the most necessary.
Utility model content
The purpose of this utility model is to provide a kind of simple in construction, and anti-flammability is greatly improved, and improves visibility, it is to avoid the flame retardant cable that people are damaged by toxic gas, with the problem solving to propose in above-mentioned background technology during burning.
For achieving the above object, the following technical scheme of this utility model offer:
A kind of flame retardant cable, including oversheath, inner sheath, flame-retardant layer, glass layer, external insulation layer, conductor, inner insulating layer, screen layer and inorganic filling material；Described oversheath, flame-retardant layer, glass layer, external insulation layer and inner sheath set gradually from outside to inside；The inner side of described inner sheath is filled with inorganic filling material；Being equipped with at least four conductors in described inorganic filling material, the outside of conductor is enclosed with inner insulating layer and screen layer successively.
Further: the thickness of described oversheath is 2～3 times of inner sheath thickness, and oversheath and inner sheath all adopt pvc material.
Further: described flame-retardant layer is gasket for packing, gasket for packing employing is non-opens net polypropylene tearing material.
Further: the thickness of described glass layer is 0.3～0.5mm.
Further: described external insulation layer uses 105 DEG C of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin materials of environment-friendly type, inner insulating layer uses 105 DEG C of IXPE materials of environment-friendly type.
Compared with prior art, the beneficial effects of the utility model are: cable jacket of the present utility model and inner sheath all use elastic and flexibility all preferably pvc material, the chlorination hydrogen amount generated during burning is only the 1/5 of common flame-proof polyvinyl chloride, and the corrosion of organ stimulating to people and equipment can be greatly reduced；Flame-retardant layer enhances the fire-retardant fireproof performance of cable；Glass layer can strengthen the stress-bearing capability of cable so that it is more tension, improves its intensity；Inorganic filling material ensures that internal conductor structure is stable；This utility model simple in construction, anti-flammability is greatly improved, and will not produce a large amount of smog during burning, improves visibility, avoids toxic gas to damage people simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of flame retardant cable.
In figure: 1-oversheath, 2-inner sheath, 3-flame-retardant layer, 4-glass layer, 5-external insulation layer, 6-conductor, 7-inner insulating layer, 8-screen layer, 9-inorganic filling material.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
Referring to figure, in this utility model embodiment, a kind of flame retardant cable, including oversheath 1, inner sheath 2, flame-retardant layer 3, glass layer 4, external insulation layer 5, conductor 6, inner insulating layer 7, screen layer 8 and inorganic filling material 9；Described oversheath 1, flame-retardant layer 3, glass layer 4, external insulation layer 5 and inner sheath 2 set gradually from outside to inside；The thickness of described oversheath 1 is 2～3 times of inner sheath 2 thickness, oversheath 1 and inner sheath 2 all use elastic and flexibility all preferably pvc material, select low smoke and low halogen type polrvinyl chloride, and its oxygen index (OI) is more than 35, the chlorination hydrogen amount generated during the burning of this low smoke and low halogen type polrvinyl chloride is only the 1/5 of common flame-proof polyvinyl chloride, and the corrosion of organ stimulating to people and equipment can be greatly reduced；Flame-retardant layer 3 is gasket for packing, gasket for packing employing is non-opens net polypropylene tearing material, the heat absorption capacity coefficient of material can be reduced, particularly in the filling unit basis of original limit gap, increase center-filled construction unit, press structure by densification and reduce construction of cable part thermal resistivity, make cable radiating effect increase, can effectively prevent the overheated burning of cable；The thickness of described glass layer 4 is 0.3～0.5mm, and glass layer 4 can strengthen the stress-bearing capability of cable so that it is more tension, improves its intensity；Described external insulation layer 5 uses 105 DEG C of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin materials of environment-friendly type；The inner side of described inner sheath 2 is filled with inorganic filling material 9, inorganic filling material 9 so that during burning glass layer 4, external insulation layer 5 fix in inner sheath 2, be unlikely to disorderly.
Being equipped with at least four conductors 6 in described inorganic filling material 9, the outside of conductor 6 is enclosed with inner insulating layer 7 and screen layer 8 successively, and inner insulating layer 7 uses 105 DEG C of IXPE materials of environment-friendly type, and screen layer 8 is avoided electric discharge phenomena.
Cable jacket of the present utility model and inner sheath all use elastic and flexibility all preferably pvc material, and the chlorination hydrogen amount generated during burning is only the 1/5 of common flame-proof polyvinyl chloride, the corrosion of organ stimulating to people and equipment can be greatly reduced；Flame-retardant layer enhances the fire-retardant fireproof performance of cable；Glass layer can strengthen the stress-bearing capability of cable so that it is more tension, improves its intensity；Inorganic filling material ensures that internal conductor structure is stable；This utility model simple in construction, anti-flammability is greatly improved, and will not produce a large amount of smog during burning, improves visibility, avoids toxic gas to damage people simultaneously.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and in the case of without departing substantially from spirit or essential attributes of the present utility model, it is possible to realize this utility model in other specific forms.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than described above, it is intended that all changes fallen in the implication of equivalency and scope of claim included in this utility model.Should not be considered as limiting involved claim by any reference in claim.
In addition, it is to be understood that, although this specification is been described by according to embodiment, but the most each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should can also be formed, through appropriately combined, other embodiments that it will be appreciated by those skilled in the art that as an entirety, the technical scheme in each embodiment by those skilled in the art.
Claims (5)
1. a flame retardant cable, it is characterised in that include oversheath (1), inner sheath (2), flame-retardant layer (3), glass layer (4), external insulation layer (5), conductor (6), inner insulating layer (7), screen layer (8) and inorganic filling material (9)；Described oversheath (1), flame-retardant layer (3), glass layer (4), external insulation layer (5) and inner sheath (2) set gradually from outside to inside；The inner side of described inner sheath (2) is filled with inorganic filling material (9)；Being equipped with at least four conductors (6) in described inorganic filling material (9), the outside of conductor (6) is enclosed with inner insulating layer (7) and screen layer (8) successively.
A kind of flame retardant cable the most according to claim 1, it is characterised in that: the thickness of described oversheath (1) is 2～3 times of inner sheath (2) thickness, and oversheath (1) and inner sheath (2) all adopt pvc material.
A kind of flame retardant cable the most according to claim 1, it is characterised in that: described flame-retardant layer (3) is gasket for packing, and gasket for packing employing is non-opens net polypropylene tearing material.
A kind of flame retardant cable the most according to claim 1, it is characterised in that: the thickness of described glass layer (4) is 0.3～0.5mm.
A kind of flame retardant cable the most according to claim 1, it is characterised in that: described external insulation layer (5) uses 105 DEG C of irradiated crosslinking low-smoke and halogen-free flame retardant polyolefin materials of environment-friendly type, and inner insulating layer (7) uses 105 DEG C of IXPE materials of environment-friendly type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620169808.7U CN205609254U (en) | 2016-03-07 | 2016-03-07 | Flame -retardant cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620169808.7U CN205609254U (en) | 2016-03-07 | 2016-03-07 | Flame -retardant cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205609254U true CN205609254U (en) | 2016-09-28 |
Family
ID=56962013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620169808.7U Expired - Fee Related CN205609254U (en) | 2016-03-07 | 2016-03-07 | Flame -retardant cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205609254U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711469A (en) * | 2018-05-21 | 2018-10-26 | 浙江嘉泽电缆有限公司 | A kind of flame retardant cable |
-
2016
- 2016-03-07 CN CN201620169808.7U patent/CN205609254U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108711469A (en) * | 2018-05-21 | 2018-10-26 | 浙江嘉泽电缆有限公司 | A kind of flame retardant cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160928 Termination date: 20170307 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |