CN104849820A - Lightning protection low-friction non-metallic central tube type optical cable - Google Patents
Lightning protection low-friction non-metallic central tube type optical cable Download PDFInfo
- Publication number
- CN104849820A CN104849820A CN201510296091.2A CN201510296091A CN104849820A CN 104849820 A CN104849820 A CN 104849820A CN 201510296091 A CN201510296091 A CN 201510296091A CN 104849820 A CN104849820 A CN 104849820A
- Authority
- CN
- China
- Prior art keywords
- optical cable
- sleeve pipe
- lightning protection
- reinforcement member
- metal reinforcement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/443—Protective covering
- G02B6/4432—Protective covering with fibre reinforcements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention provides a lightning protection low-friction non-metallic central tube type optical cable comprising optical fibers disposed in the center of the optical cable and a casing of the optical fibers. Non-metallic reinforcement members are symmetrically arranged at the two sides of the casing. The casing and the non-metallic reinforcement members at the two sides thereof are wrapped in a polyethylene sheath. The end faces of the two sides of the polyethylene sheath along the direction of the connecting line of the centers of the casing and the non-metallic reinforcement members are parallel planes. As the non-metallic reinforcement members are symmetrically arranged at the two sides of the casing, the optical cable is all-dielectric and has very high safety coefficient and high cost performance. The structure design is reasonable, the product processing technology is simple, the reliability is high, and the yield is high. In addition, the optical cable is flat, so that when the optical cable is used for pipe laying, the contact area is small, the friction coefficient is low, more optical cables can be accommodated in the same pipeline cross-sectional area, and the space utilization rate is high.
Description
Technical field
The invention belongs to communications optical cable technical field, especially relate to a kind of lightning protection low friction type metalloid core tube cable.
Background technology
Current outdoor central pipe and layer-stranding cable commonly use the main model of product GYXTW and GYTA, and generally adopt steel wire to make tensile elements, therefore the unit kilometer weight ratio of optical cable is heavier, bothers during construction.The cable cream that blocks water is adopted to fill in cable configuration, make optical cable can produce pollutant when constructing, surrounding environment is polluted, cable cream contains lubricant component simultaneously, mouse can be caused to sting, cause optical fibre in optical cable to be bitten broken, in addition, having in these cable configurations is all metal reinforcement, and need grounding maintenance, security is low.
Summary of the invention
In view of this, the present invention is intended to propose a kind of lightning protection low friction type metalloid core tube cable, reasonable in design, and is nonconductive optical fiber cable, can lightning protection, and security is high; The outside dimension of optical cable is less, the structural design of platypelloid type, and during for pipeline laying, contact area is little, and friction factor is low.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of lightning protection low friction type metalloid core tube cable, comprises the optical fiber and sleeve pipe thereof that are in optical cable center, is provided with non-metal reinforcement member described sleeve pipe is monosymmetric; The non-metal reinforcement member of described sleeve pipe and both sides thereof is all coated in pe sheath; Described pe sheath is the plane be parallel to each other along the both sides end face of sleeve pipe and non-metal reinforcement member center line connecting direction.
Further, the spacing between described sleeve pipe and non-metal reinforcement member is 0.1mm ~ 0.3mm, is filled with tygon between the two.
Further, described optical fiber be placed in be filled with fine cream sleeve pipe in.
Further, described sleeve pipe is PBT Loose tube.
Further, described non-metal reinforcement member is FRP rod.
Further, described pe sheath is arc surface perpendicular to the both sides end face of sleeve pipe and non-metal reinforcement member center line connecting direction.
Relative to prior art, a kind of lightning protection low friction type metalloid core tube cable of the present invention has following advantage:
1) at the monosymmetric non-metal reinforcement member arranging glass fibre of sleeve pipe, nonconductive optical fiber cable, can lightning protection, and safety coefficient is very high, and the cost performance of optical cable is high.
2) reasonable in design, product processing technique is simple, and good reliability, yield rate is high.
3) this optical cable is half dry type structure, easy construction, and later maintenance work is few.
4) optical cable profile is platypelloid type, and when for pipeline laying, contact area is little, and friction factor is low.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is structural representation of the present invention.
Description of reference numerals:
1-optical fiber, the fine cream of 2-, 3-sleeve pipe, 4-non-metal reinforcement member, 5-pe sheath.
Embodiment
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
A kind of lightning protection low friction type metalloid core tube cable, as shown in Figure 1, comprises the optical fiber 1 and sleeve pipe 3 thereof that are in optical cable center, is provided with non-metal reinforcement member 4 described sleeve pipe 3 is monosymmetric; The non-metal reinforcement member 4 of described sleeve pipe 3 and both sides thereof is all coated in pe sheath 5; Described pe sheath 5 is the plane be parallel to each other along sleeve pipe 3 and the both sides end face of non-metal reinforcement member 4 center line connecting direction.
The xsect of this optical cable is flat structure, and when for pipeline laying, contact area is little, and friction factor is low, and meanwhile, in same pipeline section is long-pending, can hold more optical cables, space availability ratio is high.
With non-metal reinforcement member 4 as the tensile elements in optical cable, make optical cable have good lightning protection effect, nonmetallic materials density is low simultaneously, and be 1/3 of metal material, therefore this optical cable unit kilometer weight is only about 1/2 of conventional optical cable.
Wherein, the spacing between described sleeve pipe 3 and non-metal reinforcement member 4 is 0.1mm ~ 0.3mm, is filled with tygon between the two.Separate with tygon material between sleeve pipe 3 and non-metal reinforcement member 4, not only make cable configuration compact, make non-metal reinforcement member 4 serve good drawing-resistant function simultaneously.
Wherein, described optical fiber 1 be placed in be filled with fine cream 2 sleeve pipe 3 in, such half dry type structural design, when this optical cable construction, in cable, element is less, and stripping fiber optic cables is easy, and later maintenance work is few.
Wherein, described sleeve pipe 3 is PBT Loose tube, and PBT Loose tube here can be generally PBT plastic pipe, the class plastics that concrete finger polybutylene terephthalate is formed for main body.Physical strength is high, fatigue durability good, dimensionally stable, heat-resistant aging are also fine.
Wherein, described non-metal reinforcement member 4 is FRP rod.Here FRP rod is Fiber glass rod, belongs to insulated product, and therefore, while making the tensile property of product meet 1500N, have excellent insulating property, security is high, and stability is strong, can be stable be operated in-40 DEG C ~+70 DEG C environment under.
Wherein, described pe sheath 5 is arc surface perpendicular to sleeve pipe 3 and the both sides end face of non-metal reinforcement member 4 center line connecting direction.Little with other optical cable contacts area in pipeline, friction factor is low.
This optical cable adopts locking structure to block water, and does not fill the cable cream that blocks water outside sleeve pipe 3.During production, FRP rod and PBT Loose tube tygon material are tightly enveloped, thus the full end face realizing optical cable blocks water.Cable size can well and connector box and light splitting fiber-dividing box supporting, product versatility is good.The outside dimension of whole optical cable is less, can be used for outdoor built on stilts, pipeline and make short distance self-supporting using.Simultaneously owing to being nonmetallic materials entirely in total, therefore have good lightning protection effect, safety coefficient is high.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a lightning protection low friction type metalloid core tube cable, is characterized in that: comprise the optical fiber and sleeve pipe thereof that are in optical cable center, is provided with non-metal reinforcement member described sleeve pipe is monosymmetric; The non-metal reinforcement member of described sleeve pipe and both sides thereof is all coated in pe sheath; Described pe sheath is the plane be parallel to each other along the both sides end face of sleeve pipe and non-metal reinforcement member center line connecting direction.
2. a kind of lightning protection low friction type metalloid core tube cable according to claim 1, is characterized in that: the spacing between described sleeve pipe and non-metal reinforcement member is 0.1mm ~ 0.3mm, is filled with tygon between the two.
3. a kind of lightning protection low friction type metalloid core tube cable according to claim 1, is characterized in that: described optical fiber be placed in be filled with fine cream sleeve pipe in.
4. a kind of lightning protection low friction type metalloid core tube cable according to claim 1, is characterized in that: described sleeve pipe is PBT Loose tube.
5. a kind of lightning protection low friction type metalloid core tube cable according to claim 1, is characterized in that: described non-metal reinforcement member is FRP rod.
6. a kind of lightning protection low friction type metalloid core tube cable according to claim 1, is characterized in that: described pe sheath is arc surface perpendicular to the both sides end face of sleeve pipe and non-metal reinforcement member center line connecting direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510296091.2A CN104849820A (en) | 2015-06-02 | 2015-06-02 | Lightning protection low-friction non-metallic central tube type optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510296091.2A CN104849820A (en) | 2015-06-02 | 2015-06-02 | Lightning protection low-friction non-metallic central tube type optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104849820A true CN104849820A (en) | 2015-08-19 |
Family
ID=53849590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510296091.2A Pending CN104849820A (en) | 2015-06-02 | 2015-06-02 | Lightning protection low-friction non-metallic central tube type optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104849820A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375818A (en) * | 2018-03-30 | 2018-08-07 | 江苏南方通信科技有限公司 | A kind of platypelloid type all dielectric communications optical cable |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5295215A (en) * | 1993-03-25 | 1994-03-15 | Northern Telecom Limited | Optical cable |
| CN201184919Y (en) * | 2008-04-16 | 2009-01-21 | 江苏亨通光电股份有限公司 | Improved central tube flat type road surface microflute optic cable |
| CN103837954A (en) * | 2014-02-26 | 2014-06-04 | 汕头高新区奥星光通信设备有限公司 | Central-tube-type ribbon optical fiber cable with improved structure |
| CN103941362A (en) * | 2014-03-27 | 2014-07-23 | 江苏通鼎光电股份有限公司 | Weather-proof indoor and outdoor center sleeve type non-metal optical cable |
| CN204666904U (en) * | 2015-06-02 | 2015-09-23 | 通鼎互联信息股份有限公司 | A kind of lightning protection low friction type metalloid core tube cable |
-
2015
- 2015-06-02 CN CN201510296091.2A patent/CN104849820A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5295215A (en) * | 1993-03-25 | 1994-03-15 | Northern Telecom Limited | Optical cable |
| CN201184919Y (en) * | 2008-04-16 | 2009-01-21 | 江苏亨通光电股份有限公司 | Improved central tube flat type road surface microflute optic cable |
| CN103837954A (en) * | 2014-02-26 | 2014-06-04 | 汕头高新区奥星光通信设备有限公司 | Central-tube-type ribbon optical fiber cable with improved structure |
| CN103941362A (en) * | 2014-03-27 | 2014-07-23 | 江苏通鼎光电股份有限公司 | Weather-proof indoor and outdoor center sleeve type non-metal optical cable |
| CN204666904U (en) * | 2015-06-02 | 2015-09-23 | 通鼎互联信息股份有限公司 | A kind of lightning protection low friction type metalloid core tube cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375818A (en) * | 2018-03-30 | 2018-08-07 | 江苏南方通信科技有限公司 | A kind of platypelloid type all dielectric communications optical cable |
| CN108375818B (en) * | 2018-03-30 | 2023-12-01 | 江苏南方通信科技有限公司 | Flat all-medium communication optical cable |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150819 |
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| RJ01 | Rejection of invention patent application after publication |