CN220064454U - Dry-type all-dielectric fire-resistant air-blown micro cable - Google Patents
Dry-type all-dielectric fire-resistant air-blown micro cable Download PDFInfo
- Publication number
- CN220064454U CN220064454U CN202321457716.5U CN202321457716U CN220064454U CN 220064454 U CN220064454 U CN 220064454U CN 202321457716 U CN202321457716 U CN 202321457716U CN 220064454 U CN220064454 U CN 220064454U
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- CN
- China
- Prior art keywords
- flame
- retardant
- dry
- optical fiber
- composite
- Prior art date
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Links
- 230000009970 fire resistant effect Effects 0.000 title claims abstract description 12
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical group N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000003063 flame retardant Substances 0.000 claims abstract description 38
- 239000013307 optical fiber Substances 0.000 claims abstract description 27
- 239000002131 composite material Substances 0.000 claims abstract description 20
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 4
- 230000001681 protective effect Effects 0.000 claims description 12
- 239000000853 adhesive Substances 0.000 claims description 8
- 239000000806 elastomer Substances 0.000 claims description 8
- 229920001971 elastomer Polymers 0.000 claims description 8
- 239000002985 plastic film Substances 0.000 claims description 8
- 229920006255 plastic film Polymers 0.000 claims description 8
- 229920000098 polyolefin Polymers 0.000 claims description 8
- 239000004760 aramid Substances 0.000 claims description 6
- 229920003235 aromatic polyamide Polymers 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 6
- 239000003365 glass fiber Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 7
- 238000007664 blowing Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002674 ointment Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
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- Insulated Conductors (AREA)
Abstract
The dry type all-medium fire-resistant air-blown micro cable comprises an optical fiber bundle, wherein the outer part of the optical fiber bundle is sequentially wrapped with a composite protection structure and a composite flame-retardant structure; the optical fiber bundle is formed by uniformly and unidirectionally twisting a plurality of optical fibers with the specification of G657A2-200 um; the composite protection structure comprises a film protection member and a nonmetal protection member, and the composite flame-retardant structure comprises a flame-retardant inner sheath and a flame-retardant outer sheath. The utility model is suitable for small bending radius construction and arrangement in areas such as houses and business office buildings, and has the performance advantages of fire prevention, high strength, full dry water resistance, full dielectric non-conduction, suitability for high-speed air-blowing arrangement and the like.
Description
Technical Field
The utility model relates to an air-blown micro cable, in particular to a dry type all-dielectric fire-resistant air-blown micro cable, and belongs to the technical field of optical fiber cables.
Background
With the continuous deep construction of Fiber To The Home (FTTH), network lines are gradually densely paved, and the phenomena of crossing and the like, which cannot be avoided, are avoided in the wiring of a power grid, a communication network and the like, so that the flame-retardant and fire-resistant optical cable has higher quality requirements.
However, the existing flame-retardant and fire-resistant optical cable has the characteristics of large size, strong hardness, large bending radius and the like, so that the cable is not suitable for small bending radius construction and wiring in areas such as houses and office buildings, and the integrity of an optical cable line cannot be maintained after open flame is extinguished.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides the dry type all-medium fire-resistant air-blown micro cable which can be suitable for small-bending-radius construction and arrangement in areas such as houses and business office buildings and has the performance advantages of fire prevention, high strength, all-dry water resistance, all-medium non-conduction, high-speed air-blown arrangement and the like.
The technical scheme adopted for solving the technical problems is as follows:
the dry type all-medium fire-resistant air-blown micro cable comprises an optical fiber bundle, wherein the outer part of the optical fiber bundle is sequentially wrapped with a composite protection structure and a composite flame-retardant structure; the optical fiber bundle is formed by uniformly and unidirectionally twisting a plurality of optical fibers with the specification of G657A2-200 um; the composite protection structure comprises a film protection member and a nonmetal protection member, and the composite flame-retardant structure comprises a flame-retardant inner sheath and a flame-retardant outer sheath.
Optionally, the film protection member comprises a self-adhesive plastic film.
Optionally, the nonmetallic protective component comprises an aramid yarn armor, a glass fiber yarn armor, an aramid yarn woven tape armor or a glass fiber tape armor.
Optionally, the flame-retardant inner sheath ceramic is an inner sheath made of ceramic flame-retardant polyolefin or flame-retardant elastomer.
Optionally, the flame-retardant outer sheath is made of flame-retardant polyolefin or flame-retardant elastomer.
Optionally, the flame retardant outer sheath is a sawtooth-shaped outer sheath.
Compared with the prior art, the dry type all-medium fire-resistant air-blown micro cable is suitable for small bending radius construction and arrangement in areas such as houses and business office buildings by arranging the optical fiber bundles formed by uniformly and unidirectionally twisting a plurality of optical fibers with the specification of G657A2-200um, and realizing moderate hardness and small bending radius. The utility model also realizes the performance advantages of fire prevention, high strength, full dry water resistance, full dielectric non-conduction, suitability for high-speed air-blowing laying and the like by arranging the composite protection structure and the composite flame-retardant structure.
Drawings
The utility model will be further described with reference to the drawings and examples.
Fig. 1 is a schematic structural view of a dry type all-dielectric refractory type air-blown micro-cable according to an embodiment of the present utility model.
The reference numerals in the drawings illustrate:
1-an optical fiber bundle; 11-optical fiber; 2-a composite protective structure; 21-a film protective member; 22-a non-metallic protective member; 3-a composite flame retardant structure; 31-a flame retardant inner sheath; 32-flame retardant outer sheath.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
FIG. 1 is a schematic structural view of a preferred embodiment of the present utility model, wherein a dry type all-dielectric fire-resistant air-blown micro cable comprises an optical fiber bundle 1, and a composite protection structure 2 and a composite flame-retardant structure 3 are sequentially wrapped outside the optical fiber bundle 1; the optical fiber bundle 1 is formed by uniformly and unidirectionally twisting a plurality of optical fibers 11 with the specification of G657A2-200 um; the composite protective structure 2 includes a film protective member 21 and a nonmetallic protective member 22, and the composite flame retardant structure 3 includes a flame retardant inner sheath 31 and a flame retardant outer sheath 32.
The optical fiber 11 adopts the G657A2-200um optical fiber, the outer diameter of the optical fiber 11 is thin, the macro-bending degree is high, the minimum size of the optical cable is guaranteed, the structure of the optical cable is lighter, and the loss of the optical cable is not influenced under the laying environment with larger bending degree. The film protection member 21, the nonmetal protection member 22, the flame-retardant inner sheath 31 and the flame-retardant outer sheath 32 are arranged in an all-medium structure, so that the influence of electric arcs and the like on cables can be avoided, the requirements of the air-blown optical cable on strength, fireproof performance and the like can be improved, and the tensile strength of the optical cable can be enhanced, so that the air-blown optical cable is more suitable for laying of high-speed air-blowing.
In a further alternative of the present embodiment, the film protection member 21 comprises a self-adhesive plastic film.
More specifically, the film protection member 21 is made of a self-adhesive plastic film, the tensile strength of the film is 10-20MPa, and the elongation at break is 100% -300%; the wall thickness D of the self-adhesive plastic film is more than or equal to 0.015 and less than or equal to 0.04mm. When the self-adhesive plastic film bundle tape rack is used, the self-adhesive plastic film bundle tape rack is pulled out, and the protective film is wound on the surface of the optical fiber bundle 1 through the tape rack rotating device to form an optical fiber protective layer, wherein the lap joint width of the protective film is 10% -30% of the width of the self-adhesive plastic film.
In a further alternative implementation of the present embodiment, the non-metallic protective member 22 includes an aramid yarn armor, a glass fiber yarn armor, an aramid yarn braid armor, or a glass fiber tape armor. The non-metallic protective component 22 achieves full dry water blocking, does not need to clean ointment in construction, and can reduce environmental pollution.
In a further alternative of this embodiment, the flame retardant inner sheath 31 is made of a ceramic flame retardant polyolefin or a flame retardant elastomer. More specifically, the ceramic flame-retardant polyolefin or flame-retardant elastomer is required to have an oxygen index of 45 or more and a hardness of 55D or more, and the material is high-temperature resistant, fireproof, nonflammable and does not generate toxic gas after combustion.
In a further alternative of the present embodiment, the outer sheath 32 is made of a flame retardant polyolefin or a flame retardant elastomer. More specifically, the flame-retardant polyolefin or the flame-retardant elastomer is required to have an oxygen index of more than or equal to 35, a tensile strength of more than 16MPa and a sliding friction coefficient of less than 0.25, and the material is environment-friendly and reduces the pollution to the environment.
In a further alternative of the present embodiment, the flame retardant outer sheath 32 is a saw-tooth shaped outer sheath. The size is more tiny, the structure is more suitable for laying in the pipe by the air blowing method, the friction force is small, and the high-speed air blowing construction can be better adapted.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model in any way, but any simple modification and equivalent variation of the above embodiment according to the technical spirit of the present utility model falls within the scope of the present utility model.
Claims (6)
1. A dry type all-dielectric fire-resistant air-blown micro cable is characterized in that: the optical fiber cable comprises an optical fiber cable, wherein the outside of the optical fiber cable is sequentially wrapped with a composite protection structure and a composite flame-retardant structure; the optical fiber bundle is formed by uniformly and unidirectionally twisting a plurality of optical fibers with the specification of G657A2-200 um; the composite protection structure comprises a film protection member and a nonmetal protection member, and the composite flame-retardant structure comprises a flame-retardant inner sheath and a flame-retardant outer sheath.
2. The dry all-dielectric refractory air-blown micro-cable according to claim 1, wherein: the film protection member includes a self-adhesive plastic film.
3. The dry all-dielectric refractory air-blown micro-cable according to claim 2, wherein: the nonmetallic protective component comprises an aramid yarn armor layer, a glass fiber yarn armor layer, an aramid yarn woven belt armor layer or a glass fiber belt armor layer.
4. A dry all-dielectric fire-resistant air-blown micro-cable according to claim 1, 2 or 3, characterized in that: the flame-retardant inner sheath ceramic is an inner sheath made of ceramic flame-retardant polyolefin or flame-retardant elastomer.
5. The dry all-dielectric refractory air-blown micro-cable according to claim 4, wherein: the flame-retardant outer sheath is made of flame-retardant polyolefin or flame-retardant elastomer.
6. The dry all-dielectric refractory air-blown micro-cable according to claim 5, wherein: the flame-retardant outer sheath is a sawtooth-shaped outer sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321457716.5U CN220064454U (en) | 2023-06-07 | 2023-06-07 | Dry-type all-dielectric fire-resistant air-blown micro cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321457716.5U CN220064454U (en) | 2023-06-07 | 2023-06-07 | Dry-type all-dielectric fire-resistant air-blown micro cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220064454U true CN220064454U (en) | 2023-11-21 |
Family
ID=88753220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321457716.5U Active CN220064454U (en) | 2023-06-07 | 2023-06-07 | Dry-type all-dielectric fire-resistant air-blown micro cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220064454U (en) |
-
2023
- 2023-06-07 CN CN202321457716.5U patent/CN220064454U/en active Active
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| GR01 | Patent grant |