CN201955524U - Low-smoke, halogen-free and high-flame-retardant rubber-covered wire optical cable - Google Patents
Low-smoke, halogen-free and high-flame-retardant rubber-covered wire optical cable Download PDFInfo
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- CN201955524U CN201955524U CN2011200748349U CN201120074834U CN201955524U CN 201955524 U CN201955524 U CN 201955524U CN 2011200748349 U CN2011200748349 U CN 2011200748349U CN 201120074834 U CN201120074834 U CN 201120074834U CN 201955524 U CN201955524 U CN 201955524U
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Abstract
The utility model relates to a low-smoke, halogen-free and high-flame-retardant rubber-covered wire optical cable, relates to an indoor optical cable developed for fiber to the home (FTTH), and belongs to the technical field of communication cables. The utility model adopts the technical scheme that the optical cable comprises a fiber core (5), reinforcing cores (4), an oxygen blocking layer (3) and an outer protective layer (1); and the reinforcing cores, the oxygen blocking layer and the outer protective layer are sequentially arranged outwards from the fiber core. The section of the optical cable is of an 8-shaped groove structure, the fiber core is positioned at the central position, and two reinforcing core are arranged on two sides of the fiber core respectively, so that a sheath is conveniently peeled, and installation and maintenance are simplified. The optical cable has the advantages that: the fiber is an anti-bending fiber meeting the ITU-TG567 (International Telecommunication Union- Telecommunication Standardization Sector Grade 567) technical requirement; by adopting a reinforcing material designed by using a metallic or nonmetallic material, the rigidity and the strength of the optical cable can be improved, and the laying and drawing properties of the optical cable are enhanced; by adding the design of the oxygen blocking layer, the optical cable has high flame-retardant property; and the sheath is made of a low-smoke and halogen-free polyolefin material, so that the requirement of the optical cable on environment-friendly performance is met.
Description
Affiliated technical field:
The utility model relates to a kind of low-smoke bittern-free highly fire-proof covered wire cable, is the inside cable of developing at FTTH (Fiber to the home) specially, belongs to technical field of communication cables.
Background technology:
In recent years, the covered wire cable access market of China presented good growth momentum, and optical fiber inserts the focus that has become in the optical communication field.In optical fiber inserted engineering, be the most complicated link near user's house wiring, the bending property of conventional inside cable, tensile property can not satisfy FTTH(Fiber to the home) demand of house wiring.In addition, the cable material of background technology adopts Polyvinylchloride or tygon more, and this kind material can discharge a large amount of toxic gases when burning, have potential safety hazard, not environmental protection.
The utility model content:
The utility model purpose provides a kind of low-smoke bittern-free highly fire-proof covered wire cable, and flame-proof environmental protection is good, and is safe, and bending property, tensile property are superior, and long service life solves the problems referred to above that exist in the background technology.
The technical solution of the utility model is: the low-smoke bittern-free highly fire-proof covered wire cable, comprise fibre core, strengthening core, oxygen barrier layer, outer jacket, and outwards set gradually strengthening core, oxygen barrier layer, outer jacket from fibre core.
The cross section of low-smoke bittern-free highly fire-proof covered wire cable is 8 word groove structures, and fibre core is positioned at the center, and both sides respectively are provided with a strengthening core, are convenient to peel off sheath, simplifies I﹠M.
On outer jacket, be provided with tearing port, be convenient to install.
Said fibre core adopts G657 optical fiber to make, and makes it allow littler bending radius, also just allows product sizes such as distributing box, rack can do forr a short time, thereby reduces the cost of total system hardware, and place the optical cable centre position.
Strengthening core is the strengthening core that adopts aramid fiber fortifying fibre (K-FRP) reinforcement material or high-carbon steel wire to make, and the rigidity of optical cable and intensity are improved, and has strengthened laying and the dragline performance of optical cable;
Said oxygen barrier layer is the oxygen barrier layer that low-smoke non-halogen flame-retardant oxygen barrier material is made, and its oxygen index is not less than 40, can effectively stop flame combustion, makes the flame retardant rating of cable bring up to category-A.
Said outer jacket is the outer jacket that the low-smoke halogen-free polyolefin flame-proof material is made, and has environmental protection function.
Advantage of the present utility model and good effect are: optical fiber adopts the counter-bending optical fiber that meets ITU-T G657 technical requirement, by adopting the reinforcement material of metal or nonmetallic materials design, the rigidity and the intensity of optical cable are improved, strengthened laying and the dragline performance of optical cable, increased the oxygen barrier layer design, make optical cable have the characteristic of high flame retardant, sheath adopts the low-smoke halogen-free polyolefin material, has realized the requirement of optical cable to environmental-protecting performance.
Description of drawings:
Fig. 1 is the utility model embodiment synoptic diagram;
Fig. 2 is the utility model embodiment stereographic map;
Among the figure: outer jacket 1, tearing port 2, oxygen barrier layer 3, strengthening core 4, optical fiber 5.
Embodiment:
Below in conjunction with accompanying drawing, the utility model is described in further detail by embodiment.
The low-smoke bittern-free highly fire-proof covered wire cable comprises fibre core 5, strengthening core 4, oxygen barrier layer 3, outer jacket 1, outwards sets gradually strengthening core, oxygen barrier layer, outer jacket from fibre core.On outer jacket, be provided with tearing port 2, be convenient to install.Fibre core adopts the counter-bending optical fiber that meets ITU-T G657 technical requirement, has characteristics such as transmission speed is fast, decay is little; Strengthening core adopts metal or nonmetallic materials, has improved performances such as the rigidity of optical cable and intensity; The tearing port of unique design, the optical cable baring tool free is easy to handle easy construction; Oxygen barrier layer is a low-smoke non-halogen flame-retardant oxygen barrier material, and oxygen index is not less than 40, can realize the flame-retarding characteristic of optical cable; The material of outer jacket is the halogen-free polyolefin fire proofing, has environmental protection and fire-retardant advantage, also can prolong the serviceable life of optical cable.
Claims (6)
1. a low-smoke bittern-free highly fire-proof covered wire cable is characterized in that comprising fibre core (5), strengthening core (4), oxygen barrier layer (3), outer jacket (1), outwards sets gradually strengthening core, oxygen barrier layer, outer jacket from fibre core.
2. the low-smoke bittern-free highly fire-proof covered wire cable according to claim 1 is characterized in that the cross section is 8 word groove structures, and fibre core is positioned at the center, and both sides respectively are provided with a strengthening core.
3. according to claim 1 or 2 described low-smoke bittern-free highly fire-proof covered wire cables, it is characterized in that on outer jacket, being provided with tearing port (2).
4. according to claim 1 or 2 described low-smoke bittern-free highly fire-proof covered wire cables, it is characterized in that strengthening core is the strengthening core that adopts aramid fiber fortifying fibre reinforcement material or high-carbon steel wire to make.
5. according to claim 1 or 2 described low-smoke bittern-free highly fire-proof covered wire cables, it is characterized in that said oxygen barrier layer is the oxygen barrier layer that low-smoke non-halogen flame-retardant oxygen barrier material is made, its oxygen index is not less than 40.
6. according to claim 1 or 2 described low-smoke bittern-free highly fire-proof covered wire cables, it is characterized in that said outer jacket is the outer jacket that the low-smoke halogen-free polyolefin flame-proof material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200748349U CN201955524U (en) | 2011-03-21 | 2011-03-21 | Low-smoke, halogen-free and high-flame-retardant rubber-covered wire optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200748349U CN201955524U (en) | 2011-03-21 | 2011-03-21 | Low-smoke, halogen-free and high-flame-retardant rubber-covered wire optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201955524U true CN201955524U (en) | 2011-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200748349U Expired - Fee Related CN201955524U (en) | 2011-03-21 | 2011-03-21 | Low-smoke, halogen-free and high-flame-retardant rubber-covered wire optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201955524U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293616A (en) * | 2012-02-29 | 2013-09-11 | 上海特缆电工科技有限公司 | Fire-resistant optical cable preventing damage caused by rats and application thereof |
-
2011
- 2011-03-21 CN CN2011200748349U patent/CN201955524U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103293616A (en) * | 2012-02-29 | 2013-09-11 | 上海特缆电工科技有限公司 | Fire-resistant optical cable preventing damage caused by rats and application thereof |
| CN103293616B (en) * | 2012-02-29 | 2015-05-06 | 上海特缆电工科技有限公司 | Fire-resistant optical cable preventing damage caused by rats and application thereof |
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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: 20110831 Termination date: 20200321 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |