CN205091494U - Light -duty full medium self -bearing type optical cable - Google Patents
Light -duty full medium self -bearing type optical cable Download PDFInfo
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- CN205091494U CN205091494U CN201520818856.XU CN201520818856U CN205091494U CN 205091494 U CN205091494 U CN 205091494U CN 201520818856 U CN201520818856 U CN 201520818856U CN 205091494 U CN205091494 U CN 205091494U
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- sleeve pipe
- oversheath
- nonmetal
- optical cable
- core
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Abstract
The utility model relates to a light -duty full medium self -bearing type optical cable, including oversheath (1), sleeve pipe (2), nonmetal core (3) and optic fibre (5) strengthened, the cross section of oversheath (1) is the long circle structure, sleeve pipe (2) set up the center in oversheath (1), the both sides of sleeve pipe (2) are provided with the nonmetal core (3) of strengthening respectively, the axis of nonmetal enhancement core (3) is parallel to each other with the axis of sleeve pipe (2), and multifiber (5) set up in sleeve pipe (2), and the space intussuseption between the inner wall of the outer wall of multifiber (5) and sleeve pipe (2) is filled with fine cream (4). The utility model has the advantages of: the oversheath is the nonmetal with the enhancement core, and the dielectric structure makes the optical cable possess natural screening nature to thunder and lightning and forceful electric power entirely moreover, has high security and practicality, the construction is simple and convenient, the laid down cost is low, volume and weight are little, and former material cost reduces.
Description
Technical field
The utility model relates to optical cable technology field, particularly a kind of light-duty all-dielectric self-support cable.
Background technology
Along with the development of optical-fiber network technology, carrying out light entering and copper back in communication network access aspect has become irreversible trend.Optical cable used for access network lays the singularity of environment because of it, requires that it has higher security, simplicity.And general with metal material in conventional cable, due to imperfect earth, cause the event introducing thunder and lightning defective communication equipment because of optical cable to happen occasionally.Although traditional built on stilts non-metallic optical fiber cables is also all dielectric, cannot self-supporting, need to rely on steel wire and hook is built on stilts lays, optical cable heavier-weight, also has potential safety hazard while being not easy to construction.
Utility model content
The purpose of this utility model is the shortcoming overcoming prior art, provide a kind of tensile strength properties good, be convenient to lay the light-duty all-dielectric self-support cable low with cost.
The purpose of this utility model is achieved through the following technical solutions: a kind of light-duty all-dielectric self-support cable, comprise oversheath, sleeve pipe, nonmetal strengthening core and optical fiber, the xsect of described oversheath is Long Circle structure, described sleeve pipe is arranged on the center of oversheath, the both sides of described sleeve pipe are respectively arranged with nonmetal strengthening core, the described axis of nonmetal strengthening core and the axis of sleeve pipe are parallel to each other, multifiber is arranged in sleeve pipe, is filled with fine cream in the space between the outer wall of multifiber and the inwall of sleeve pipe.
Described nonmetal strengthening core is glass fiber reinforced plastics strengthening core.
Described optical fiber is 2 ~ 24 cores.
The utility model has the following advantages:
1, oversheath of the present utility model and strengthening core are nonmetal, and all dielectric structure makes optical cable possess natural screening to thunder and lightning and forceful electric power, optical cable is had and does not draw thunder but the characteristic of electricity, have high security and practicality.
2, the both sides of sleeve pipe are respectively arranged with nonmetal strengthening core, can realize self-supporting and lay, and simultaneously the xsect of oversheath is Long Circle structure, end of cable with lay when gold utensil coordinates convenient, easy construction, reduction construction cost while lifting construction efficiency.
3, the xsect of oversheath and the xsect of optical cable is Long Circle structure, makes optical cable have less volume, and its weight is also corresponding to be alleviated, and decreases starting material simultaneously and expends, and the cost of raw material reduces.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1-oversheath, 2-sleeve pipe, the nonmetal strengthening core of 3-, the fine cream of 4-, 5-optical fiber.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described, but protection domain of the present utility model is not limited to the following stated.
As shown in Figure 1, a kind of light-duty all-dielectric self-support cable, comprise oversheath 1, sleeve pipe 2, nonmetal strengthening core 3 and optical fiber 5, the xsect of described oversheath 1 is Long Circle structure, described sleeve pipe 2 is arranged on the center of oversheath 1, the both sides of described sleeve pipe 2 are respectively arranged with nonmetal strengthening core 3, and nonmetal strengthening core 3 is about the axisymmetrical of sleeve pipe 2, the axis of described nonmetal strengthening core 3 and the axis of sleeve pipe 2 are parallel to each other, multifiber 5 is arranged in sleeve pipe 2, is filled with fine cream 4 in the space between the outer wall of multifiber 5 and the inwall of sleeve pipe 2.
Further, described nonmetal strengthening core 3 is glass fiber reinforced plastics strengthening core, has stronger tensile property, can meet the applied environment of 100m span, fresh gale speed.
Further, described optical fiber 5 is 2 ~ 24 cores, and when core number is 2 ~ 12 core, cable outer diameter is 3.8mm × 7.5mm, and weight is about 37kg/km, and when core number is 13 ~ 24 core, cable outer diameter is 4.6mm × 9.5mm, and weight is about 60kg/km.
When producing optical cable, the general recommendations of extruder screw length-diameter ratio is 20:1 or 25:1, screw rod and machine barrel gap are 0.14-0.18mm, ratio of compression is 4:1 or 3.5:1, PE material is higher to temperature control requirement, the too high PE material of temperature can cause furnace pressure to cause extrusion molding unstable not, temperature too low can not melting complete, cause optical cable surface to have particle.Extrusion temperature will according to temperature, go out linear velocity and PE gel quantity size etc. and appropriately adjust, the temperature of two points to be noted especially: one is the temperature of cross-head, because that to be optical cable final is moulding for this, temperature will arrange slightly high point, guarantee optical cable surface smoothness; Another is the temperature in spiral shell thorax stage casing, and temperature is too low, and PE material can not fully melt, and materials processing performance does not reach, and temperature is too high, and PE mobility is too good, causes spiral shell thorax stage casing pressure instability and refluxes, and head plastic squeeze is unstable.First the material melted under unsteady state all to be extruded when therefore just starting, then just can produce, to keep the consistent of PE processing characteristics.In addition, should note immediately while screw rod just starts observing screw rod current instrument, observe electric current whether abnormal bigger than normal, if electric current is bigger than normal, now should shut down in time, and heighten heating-up temperature or continue heating.Owing to being different from traditional round optical cable, platypelloid type optical cable needs by PE material by reinforcement and the tangible its vicinity of casing pressure, and ensures the wall thickness of requirement, has therefore made extruded mould into squash type from traditional pull-tube type.
Claims (3)
1. a light-duty all-dielectric self-support cable, it is characterized in that: comprise oversheath (1), sleeve pipe (2), nonmetal strengthening core (3), with optical fiber (5), the xsect of described oversheath (1) is Long Circle structure, described sleeve pipe (2) is arranged on the center of oversheath (1), the both sides of described sleeve pipe (2) are respectively arranged with nonmetal strengthening core (3), the axis of described nonmetal strengthening core (3) and the axis of sleeve pipe (2) are parallel to each other, multifiber (5) is arranged in sleeve pipe (2), fine cream (4) is filled with in space between the outer wall of multifiber (5) and the inwall of sleeve pipe (2).
2. a kind of light-duty all-dielectric self-support cable according to claim 1, is characterized in that: described nonmetal strengthening core (3) is glass fiber reinforced plastics strengthening core.
3. a kind of light-duty all-dielectric self-support cable according to claim 1, is characterized in that: described optical fiber (5) is 2 ~ 24 cores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520818856.XU CN205091494U (en) | 2015-10-22 | 2015-10-22 | Light -duty full medium self -bearing type optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520818856.XU CN205091494U (en) | 2015-10-22 | 2015-10-22 | Light -duty full medium self -bearing type optical cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205091494U true CN205091494U (en) | 2016-03-16 |
Family
ID=55482164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520818856.XU Active CN205091494U (en) | 2015-10-22 | 2015-10-22 | Light -duty full medium self -bearing type optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205091494U (en) |
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2015
- 2015-10-22 CN CN201520818856.XU patent/CN205091494U/en active Active
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| GR01 | Patent grant |