CN202502282U - Loose tube layer-twisted full-dry cable - Google Patents
Loose tube layer-twisted full-dry cable Download PDFInfo
- Publication number
- CN202502282U CN202502282U CN2012201146577U CN201220114657U CN202502282U CN 202502282 U CN202502282 U CN 202502282U CN 2012201146577 U CN2012201146577 U CN 2012201146577U CN 201220114657 U CN201220114657 U CN 201220114657U CN 202502282 U CN202502282 U CN 202502282U
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- loose
- cable
- dry type
- sleeve pipe
- optical cable
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Abstract
The utility model provides a loose tube layer-twisted full-dry cable, comprising a cable core and a sheath sleevedly arranged at the outer surface of the cable core. Loose tubes are arranged inside the cable core, wherein optical fibers are arranged inside the loose tubes; and the optical fibers and water-blocking yarns are simultaneously arranged inside the loose tubes; and a water-blocking yarn is arranged among cable core gaps outside the loose tubes. Besides, a two-sided water-blocking tape is arranged between the cable core and the sheath; and a rip cord is arranged between the two-sided water-blocking tape and the sheath. According to the loose tube layer-twisted full-dry cable provided by the utility model, the weight of the cable is substantially reduced; corresponding costs of production and transport of products can be reduced. And compared with working time spent for installation, laying and connection of cables filled with water-blocking ointments, working time spent for installation, laying and connection of the loose tube layer-twisted full-dry cables can be shortened by over a third, thereby substantially reducing the line laying cost.
Description
Technical field
The utility model relates to a kind of Communication Equipment, a kind of specifically dry type optical cable of loose jacket layer strand.
Background technology
For a long time, applied outdoor optical cable mainly contains two types on the Communication in China market: one is not stranded central tubular optical cable, and another is a layer-stranding cable.These two types of optical cables generally are through in optical cable, filling greasy for preventing water, prevent that with this moisture content and moisture from penetrating in the optical fiber, thereby guarantee the performance and the serviceable life of cable inner fiber.The optical cable of factice for filling is relatively more inconvenient when laying use, when continuing optical cable, must the ointment of filling in the cable be cleaned, and cleaning process relatively consumes manual work and cleaning material, and therefore, the construction and installation expense is than higher.Simultaneously, the optical cable of filling greasy for preventing water is heavier, is not easy to transportation and cable laying operation.It is more outstanding that these defectives show in the higher external construction of cost of labor.
The utility model content
To the deficiency and the defective of above existing ointment filling technique, the purpose of the utility model is to provide a kind of dry type optical cable of loose jacket layer strand.
The purpose of the utility model realizes through adopting following technical scheme:
A kind of dry type optical cable of loose jacket layer strand comprises cable core, is set in the sheath of cable core outside surface, establishes the loose sleeve pipe of optical fiber in comprising in this cable core, is provided with optical fiber and water blocking yarn simultaneously in the said loose sleeve pipe, and the outer cable core gap of this pine sleeve pipe is provided with water blocking yarn; Be provided with two-sided waterstop between said cable core and the sheath, be provided with between this two-sided waterstop and sheath and tear rope.
As the optimal technical scheme of the utility model, the thickness of said two-sided waterstop is 0.15mm～0.25mm.
As the optimal technical scheme of the utility model, the water blocking yarn in the said loose sleeve pipe is that line density is the thin footpath water blocking yarn of 11000m/kg; Water blocking yarn in the cable core gap outside this pine sleeve pipe is that line density is the particle size water blocking yarn of 2000m/kg.
As the optimal technical scheme of the utility model, the said rope of tearing is provided with at least one.
As the optimal technical scheme of the utility model, be provided with strengthening core and gasket for packing in the said cable core, this loose sleeve pipe and gasket for packing that includes optical fiber and water blocking yarn centers on the stranded setting of this strengthening core.
As the optimal technical scheme of the utility model, when said strengthening core received maximum permission tensile force at optical cable, its development length was no more than 1%.
As the optimal technical scheme of the utility model, said strengthening core is the nonmetal strengthening core of FRP (Glass Fiber Reinforced Plastic, fiberglass-reinforced plastic lever or Aramid Fiber Reinforced Plastic, aromatic polyamide fiber reinforced plastics bar).
As the optimal technical scheme of the utility model, said loose sleeve pipe is the loose sleeve pipe of PBT (polybutylene terephtalate, polybutylene terephthalate).
As the optimal technical scheme of the utility model, said sheath is moulded by two-sided steel or the composite band of plastic-aluminum and LLDPE (linear low density polyethylene) or the MDPE (medium density polyethylene) or HDPE (high density polyethylene) sheath that are wrapped on this composite band are formed.
Compare with existing ointment filling technique; The described dry type optical cable of the utility model adopts the dry type material water-proof material to replace in the optical fiber loose tube and between sleeve pipe and the employed factice for filling in other gap of optical cable; Make all spaces of optical cable not have ointment fully, thereby realized the dry type cable configuration.Simultaneously; The dry type material water-proof material that weight is lighter and than the light a lot of FRP strengthening core of high-tensile steel wires; Make the weight of optical cable be able to alleviate greatly; Reduced product and produced, transporting corresponding cost, the dry type lightguide cable link lays to compare with the optical cable of filling greasy for preventing water with the working time of the required cost that continues in installation and also can shorten more than 1/3rd, has reduced the line arrangement cost significantly.Simultaneously; After using the material water-proof material of dry type; The workmen only need just can carry out welding with the optical fiber taking-up with scissors very soon and very easily, has accelerated construction speed, has effectively saved manual work; Also reduced the use of much cleaning consumables, also reduced of the pollution of article such as ointment simultaneously surrounding environment like washing agent, towel etc.
Description of drawings
Fig. 1 is the cross sectional representation of the dry type optical cable of a kind of loose jacket layer strand of the utility model.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further:
See also Fig. 1, be the cross sectional representation of the dry type optical cable of a kind of loose jacket layer strand of the utility model.
The dry type optical cable of this pine jacket layer strand comprises cable core and the sheath that is set in the cable core outside surface.This sheath is moulded by two-sided steel or the composite band 102 of plastic-aluminum and LLDPE or the MDPE or the HDPE sheath 101 that are wrapped on this composite band 102 are formed.Be provided with two-sided waterstop 103 between this composite band 102 and the cable core, 102 of this two-sided waterstop 103 and this composite band are provided with two and tear rope 108.When connecting optical fiber, two of tearings are torn composite band 102 and the sheath 101 that rope 108 will wrap up cable core and are scratched, and just can cable core exposed, so that connection.Wherein, the thickness of said two-sided waterstop 103 is 0.15mm～0.25mm.
In this cable core, be provided with strengthening core 110, many loose sleeve pipes 106, when loose sleeve pipe 106 can't be stranded in strengthening core 110 peripheral uniformly, some gasket for packings 109 can be set in cable core substitute loose sleeve pipes 106.This pine sleeve pipe 106 is a PBT pine sleeve pipe, is enclosed with some optical fiber 105 in it.This gasket for packing 109 centers on these strengthening core 110 stranded settings with loose sleeve pipe 106.This strengthening core 110 is the nonmetal strengthening core of FRP, and when optical cable received maximum permission tensile force, the development length of this strengthening core 110 was no more than 1%.
Be provided with water blocking yarn 111 in this pine sleeve pipe 106; Adopt the water blocking yarn of suitable line density very important in this pine sleeve pipe 106; The line footpath too slightly can cause the water blocking yarn 111 and the friction force of optical fiber 105 to increase; Thereby increase unsuitable excess fiber length, too the detailed rules and regulations block-water effect is bad and cause vertical infiltration, and preferable said water blocking yarn 111 line densities of effect are the thin footpath water blocking yarn of 11000m/kg.Be provided with particle size water blocking yarn 107 in the gap of cable core, it is the particle size water blocking yarn of 2000m/kg that the preferable water blocking yarn 107 of effect adopts line density.
The preferred embodiment that the above is merely the utility model is not the practical range that is used for limiting the utility model; Every equivalence of doing according to the utility model changes and revises, and is all covered by the scope of the utility model claims.
Claims (9)
1. the dry type optical cable of a loose jacket layer strand; Comprise cable core, be set in the sheath of cable core outside surface; Establish the loose sleeve pipe of optical fiber in comprising in this cable core, it is characterized in that: be provided with optical fiber and water blocking yarn simultaneously in the said loose sleeve pipe, the outer cable core gap of this pine sleeve pipe is provided with water blocking yarn; Be provided with two-sided waterstop between said cable core and the sheath, be provided with between this two-sided waterstop and sheath and tear rope.
2. the dry type optical cable of a kind of loose jacket layer strand according to claim 1, it is characterized in that: the thickness of said two-sided waterstop is 0.15mm～0.25mm.
3. the dry type optical cable of a kind of loose jacket layer strand according to claim 1 is characterized in that: the water blocking yarn in the said loose sleeve pipe is that line density is the thin footpath water blocking yarn of 11000m/kg; Water blocking yarn in the cable core gap outside this pine sleeve pipe is that line density is the particle size water blocking yarn of 2000m/kg.
4. the dry type optical cable of a kind of loose jacket layer strand according to claim 1 is characterized in that: the said rope of tearing is provided with at least one.
5. the dry type optical cable of a kind of loose jacket layer strand according to claim 1 is characterized in that: be provided with strengthening core and gasket for packing in the said cable core, this loose sleeve pipe and gasket for packing that includes optical fiber and water blocking yarn centers on the stranded setting of this strengthening core.
6. the dry type optical cable of a kind of loose jacket layer strand according to claim 5 is characterized in that: when said strengthening core received maximum permission tensile force at optical cable, its development length was no more than 1%.
7. according to the dry type optical cable of claim 5 or 6 described a kind of loose jacket layer strands, it is characterized in that: said strengthening core is the nonmetal strengthening core of FRP.
8. according to the dry type optical cable of claim 1 or 5 described a kind of loose jacket layer strands, it is characterized in that: said loose sleeve pipe is a PBT pine sleeve pipe.
9. the dry type optical cable of a kind of loose jacket layer strand according to claim 1 is characterized in that: said sheath is moulded by two-sided steel or the composite band of plastic-aluminum and LLDPE or the MDPE or the HDPE sheath that are wrapped on this composite band are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201146577U CN202502282U (en) | 2012-03-23 | 2012-03-23 | Loose tube layer-twisted full-dry cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201146577U CN202502282U (en) | 2012-03-23 | 2012-03-23 | Loose tube layer-twisted full-dry cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202502282U true CN202502282U (en) | 2012-10-24 |
Family
ID=47038892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201146577U Expired - Lifetime CN202502282U (en) | 2012-03-23 | 2012-03-23 | Loose tube layer-twisted full-dry cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202502282U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062728A (en) * | 2014-06-23 | 2014-09-24 | 江苏亨通光电股份有限公司 | Micro-beam-tube easily-branched optical cable |
| CN105336440A (en) * | 2014-08-08 | 2016-02-17 | 上海朗达电缆（集团）有限公司 | Optical fiber composite medium-voltage cable |
| CN106125236A (en) * | 2016-08-24 | 2016-11-16 | 长飞光纤光缆股份有限公司 | A kind of Full-drying type loose flange optic fibre dual-purpose optical cable of band indoor and outdoor |
| CN106842465A (en) * | 2016-12-27 | 2017-06-13 | 山东太平洋光纤光缆有限公司 | A kind of used in nuclear power station optical cable and preparation method thereof |
-
2012
- 2012-03-23 CN CN2012201146577U patent/CN202502282U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062728A (en) * | 2014-06-23 | 2014-09-24 | 江苏亨通光电股份有限公司 | Micro-beam-tube easily-branched optical cable |
| CN105336440A (en) * | 2014-08-08 | 2016-02-17 | 上海朗达电缆（集团）有限公司 | Optical fiber composite medium-voltage cable |
| CN106125236A (en) * | 2016-08-24 | 2016-11-16 | 长飞光纤光缆股份有限公司 | A kind of Full-drying type loose flange optic fibre dual-purpose optical cable of band indoor and outdoor |
| CN106842465A (en) * | 2016-12-27 | 2017-06-13 | 山东太平洋光纤光缆有限公司 | A kind of used in nuclear power station optical cable and preparation method thereof |
| CN106842465B (en) * | 2016-12-27 | 2019-10-25 | 山东太平洋光纤光缆有限公司 | A kind of used in nuclear power station optical cable and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121024 |