CN116299927B - Skeleton type optical fiber ribbon optical cable - Google Patents
Skeleton type optical fiber ribbon optical cable Download PDFInfo
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- CN116299927B CN116299927B CN202310601227.0A CN202310601227A CN116299927B CN 116299927 B CN116299927 B CN 116299927B CN 202310601227 A CN202310601227 A CN 202310601227A CN 116299927 B CN116299927 B CN 116299927B
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- optical fiber
- skeleton
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- groove
- ribbon
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 138
- 230000003287 optical effect Effects 0.000 title claims abstract description 24
- 230000001681 protective effect Effects 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 25
- 230000000903 blocking effect Effects 0.000 claims abstract description 22
- 239000011159 matrix material Substances 0.000 claims abstract description 16
- 239000000835 fiber Substances 0.000 claims description 17
- 239000000843 powder Substances 0.000 claims description 13
- 239000004033 plastic Substances 0.000 claims description 10
- 229920003023 plastic Polymers 0.000 claims description 10
- 239000002356 single layer Substances 0.000 claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 3
- 238000004078 waterproofing Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 6
- 239000005020 polyethylene terephthalate Substances 0.000 description 6
- 239000004698 Polyethylene Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- -1 polyethylene terephthalate Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000544049 Cycnogeton procerum Species 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Communication Cables (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention discloses a skeleton type optical fiber ribbon optical cable, which comprises a cable core, wherein a water blocking tape is coated outside the cable core, the cable core comprises a central reinforcing core, a skeleton and an optical fiber ribbon, the central reinforcing core is embedded in a central hole of the skeleton, a spiral skeleton groove is formed in the outer side of the skeleton, the optical fiber ribbon is stacked in the skeleton groove from inside to outside to form an optical fiber ribbon array, the cable core further comprises a protection strip, the protection strip is arranged on one surface of the optical fiber ribbon far away from the central reinforcing core, and the protection strip completely covers one surface of the optical fiber ribbon far away from the central reinforcing core, so that one surface of the optical fiber ribbon matrix far away from the central reinforcing core is not exposed, and the optical fiber ribbon is protected. Because the protective strips exist, the optical fibers in the optical fiber ribbon matrix cannot be directly contacted with the water blocking belt, and the conditions of attenuation increase and the like caused by stress are not easy to occur, so that a larger buffer space is not needed, the reduction of the diameter of a framework is facilitated, and the product cost is reduced.
Description
Technical Field
The invention belongs to the field of optical cables, and particularly relates to a skeleton type optical fiber ribbon optical cable.
Background
The problem of extra loss caused by the stress of the optical fiber ribbon edge fiber in the optical fiber ribbon cable has long been the problem to be solved in the optical fiber ribbon cable. Chinese patent document CN115774309a provides a ribbon cable with loose tube light units, which changes the stress conduction direction by adding a protection tape in the stacking direction of the ribbon array, thereby reducing the extra loss caused by the edge fiber stress.
In addition to loose tube light units, another major class of fiber optic cable is rack-mounted fiber optic cable. Optical fiber ribbons are usually laid in skeleton type optical cables, and have the characteristics of large fiber capacity and high welding efficiency, and skeleton grooves on a skeleton are mostly in spiral stranding structures in order to ensure bending resistance.
The different Yu Song sleeve circumference even stress distribution structure, skeleton optical fiber ribbon cable receives stress, and wherein important factor is the spiral state in skeleton groove when optical fiber ribbon brings into the cable for limit fine stressed lead wire is more obvious, and the skeleton has the waterstop outward Zhou Baoza, extrudes the optic fibre that is in two summit positions at the top in the optical fiber ribbon matrix in the skeleton groove very easily, makes its atress influence the attenuation index.
At present, in order to solve the problem of stress suffered by an optical fiber ribbon during cable entering and cable forming, a certain buffer space needs to be reserved between the optical fiber ribbon and a water-blocking ribbon, and the optical fiber ribbon with smaller core number is generally adopted, so that the space in a framework groove is difficult to effectively utilize, and the reduction of the diameter of the framework and the reduction of the product cost are not facilitated.
Disclosure of Invention
Aiming at the defects or improvement demands of the prior art, the invention provides a skeleton type optical fiber ribbon optical cable and a cable core thereof, and the optical fibers in the optical fiber ribbon cannot directly contact with the water blocking belt due to the existence of a protective strip on the optical fiber ribbon, so that the conditions of attenuation increase and the like caused by stress are not easy to occur.
In order to achieve the above object, according to the present invention, there is provided a skeleton-type optical fiber ribbon cable, comprising a cable core, wherein a water-blocking tape is coated outside the cable core, the cable core comprises a central reinforcing core, a skeleton and an optical fiber ribbon, the central reinforcing core is embedded in a central hole of the skeleton, the outside of the skeleton is provided with a spiral skeleton groove, and the optical fiber ribbon is stacked in the skeleton groove from inside to outside to form an optical fiber ribbon array;
the radial effective depth d of the skeleton groove is the distance from the notch edge of the skeleton groove to one surface of the optical fiber ribbon array, which is close to the central reinforcing core, and the opening width w is equal to the width L of the optical fiber ribbon array 0 The opening width w is the distance between two opposite edges of the notch of the skeleton groove;
the cable core further comprises a protection strip, the protection strip is arranged on one surface of the optical fiber ribbon far away from the central reinforcing core, and the protection strip completely covers one surface of the optical fiber ribbon far away from the central reinforcing core, so that one surface of the optical fiber ribbon matrix far away from the central reinforcing core is not exposed, and the optical fiber ribbon is protected, wherein the thickness t of the optical fiber ribbon array 2 Thickness t of the protective strip 1 The sum is less than or equal to the radial effective depth d of the skeleton groove。
Preferably, the thickness t of the ribbon array 2 Thickness t of the protective strip 1 The sum is equal to the radial effective depth d of the backbone groove.
Preferably, the inner side of the water-blocking tape is adhered with water-blocking powder, and the width L of the protective strip and the optical fiber tape is slightly larger than the width L of the optical fiber tape array when the protective strip and the optical fiber tape are straight and straight 0 The method comprises the steps of carrying out a first treatment on the surface of the The difference between the opening width w of the skeleton groove and the width L of the protective strip is 0.4-mm-1.0 mm, and a gap exists between the protective strip and the groove side wall of the skeleton groove, so that water-blocking powder falls into the gap between the optical fiber ribbon array and the groove side wall of the skeleton groove for water prevention.
Preferably, the cross section of the protection strip is -shaped and the openings face the matrix of optical fiber ribbons, the two sides of the protection strip are provided with protection wings, and the length h of the protection wings extending towards one side of the matrix of optical fiber ribbons close to the central reinforcing core does not exceed the thickness t of the single-layer optical fiber ribbon 3 。
Preferably, the cross section of the skeleton groove is trapezoid or U-shaped, the width of the skeleton groove gradually increases from inside to outside along the radial direction of the cross section, the ratio of the opening width w of the skeleton groove to the width L of the protective strip is 1.2-1.35, and a gap exists between the protective strip and the groove side wall of the skeleton groove, so that water-blocking powder falls into the gap between the optical fiber ribbon array and the groove side wall of the skeleton groove for water prevention.
Preferably, the number of the skeleton grooves is 2-12, and each skeleton groove is respectively provided with one optical fiber ribbon and one protection strip.
Preferably, 1-12 optical fiber ribbons are laid in the skeleton groove, and the core number of each optical fiber ribbon is 4-24 cores.
Preferably, the number of cores of each optical fiber ribbon is 12-24.
Preferably, the thickness of the protection strip is 0.1-mm-0.2 mm and smaller than that of the single-layer optical fiber ribbon, the protection strip is made of PET plastic or PP plastic, and the bending modulus is 100-500 MPa.
Preferably, the waterproof belt is coated with a dampproof aluminum belt and then is extruded with an outer sheath, and the skeleton type optical fiber ribbon optical cable further comprises a tearing rope which is clung to the inner wall of the outer sheath.
Preferably, the waterproof belt is coated with a dampproof aluminum belt and then is extruded with an outer sheath, and the framework and the outer sheath are made of PE plastic.
In general, the above technical solutions conceived by the present invention, compared with the prior art, enable the following beneficial effects to be obtained:
1) The protection strip is placed on the optical fiber ribbon matrix, the protection strip is made of PET or PP plastic, the width of the protection strip is the same as that of the optical fiber ribbon, and when the optical fiber ribbon is in cable, the optical fibers in the optical fiber ribbon matrix cannot directly contact with the water blocking belt, so that the situation that attenuation is increased due to the fact that the water blocking belt is wound and cabled under stress is not easy to occur, and therefore, a larger buffer space is not needed for a framework groove, the diameter of the framework is reduced, and the product cost is reduced.
2) Because the stress state of the side fibers of the optical fiber ribbon is improved when the laminated optical fiber ribbon is put into the groove, the control difficulty of the optical fiber ribbon slot-in process is reduced, the 12-24 core optical fiber ribbon is possible to be used for the skeleton type optical cable, and the optical fiber capacity of the skeleton type optical cable can be effectively increased.
3) When the skeleton type optical cable is in branch connection, if the optical cable is not cut off and only windows are arranged at the corresponding positions, the situation that the optical fiber ribbon is accidentally injured can not occur due to the existence of the protection strip, convenience is brought to the construction of the optical cable in a complex state, and the cost for laying the optical cable can be reduced.
4) The gap exists between the protective strip and the groove side wall of the skeleton groove, so that the water-blocking powder falls into the gap between the optical fiber ribbon array and the groove side wall of the skeleton groove for waterproofing, and the water-blocking powder can fall into the gap to play a good role in waterproofing by reasonably controlling the relation between the opening width w of the skeleton groove and the width L of the protective strip.
Drawings
FIG. 1 is a schematic illustration of a skeleton-type fiber optic ribbon cable of the present invention;
FIG. 2 is a schematic illustration of an array of optical fiber ribbons and protective strips disposed within a backbone groove.
The same reference numbers are used throughout the drawings to reference like elements or structures, wherein: 1-optical fiber ribbon, 2-protection strip, 3-skeleton, 4-tearing rope, 5-center reinforcement, 6-water-blocking, 7-dampproofing aluminium ribbon, 8-oversheath.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The skeleton type optical fiber ribbon cable comprises a cable core, wherein a water blocking tape 6 is coated outside the cable core, a dampproof aluminum tape 7 is coated outside the water blocking tape 6, and an outer sheath 8 is extruded.
Referring to fig. 1, the cable core of the skeleton-type optical fiber ribbon cable comprises a central reinforcing core 5, a skeleton 3 and an optical fiber ribbon 1, wherein the central reinforcing core 5 is embedded in a central hole of the skeleton 3, a spiral skeleton groove is formed in the outer side of the skeleton 3, the radial section (cross section) of the skeleton groove can be rectangular, trapezoidal or U-shaped, and the optical fiber ribbon 1 is stacked in the skeleton groove from inside to outside to form an optical fiber ribbon array.
The radial effective depth d of the skeleton groove is the radial range of the width of the optical fiber ribbon in the plane perpendicular to the radial direction of the skeleton groove, and the width L of the optical fiber ribbon array is equal to or greater than the width of the optical fiber ribbon 0 The opening width w is the distance between the opposite edges of the notch of the skeleton groove, as shown in fig. 2. In FIG. 2, d-effective depth, w-opening width, width of L-guard bar, L 0 -ribbon matrix width, h-ribbon thickness of single layer, t 1 Thickness of the protective strip, t 2 Matrix thickness of ribbon (stack height of ribbon), t 3 -single layer ribbon thickness, length of the h-protection wing extending toward the side of the ribbon array near the central strength member.
The cable core further comprises a protection strip 2, wherein the protection strip 2 is arranged on one surface of the optical fiber ribbon 1 far away from the central reinforcing core 5, and the protection strip is arranged on the other surface of the optical fiber ribbon 1The bead 2 completely covers the side of the ribbon 1 remote from the central reinforcing core 5 such that the side of the ribbon 1 remote from the central reinforcing core 5 is not exposed, i.e. the ribbon 1 stack height (ribbon array thickness t 2 ) Thickness t of the protective strip 2 1 The sum of the two is less than or equal to the radial effective depth d of the skeleton groove, so that the protection strip 2 bears the compressive stress when the water blocking belt is wrapped during cabling, and the optical fiber belt 1 is protected. Preferably, the ribbon 1 stack height (thickness t of ribbon array 2 ) Thickness t of the protective strip 2 1 The sum is equal to the radial effective depth d of the skeleton groove, so that the inner space of the skeleton groove is effectively utilized. Preferably, the water blocking tape 6 may be attached to the protection strip 2.
Because the protective strips 2 exist, the optical fiber strips in the optical fiber strip matrix cannot be directly contacted with the water blocking strips 6 of the optical cable, and the situation of attenuation increase and the like caused by stress is not easy to occur, so that a larger buffer space is not needed, the diameter of the framework 3 is reduced, and the product cost is reduced.
The cable core is wrapped with a water blocking tape, and water blocking powder is adhered to the inner side of the water blocking tape.
Further, when the protective strip 2 and the optical fiber ribbon 1 are straight and straight, the width L of the protective strip 2 is slightly larger than the width of the optical fiber ribbon 1, so that the edge fiber of the optical fiber ribbon 1 is not affected by the wrapping stress of the hindered water ribbon. And water blocking powder is adhered to the inner side of the water blocking tape, and can scatter into a gap between the side wall of the framework groove and the matrix of the optical fiber tape, so that the water blocking effect is ensured. The width of the protective strip is larger than that of the optical fiber ribbon 1, and the protective strip can prevent the movement of water and powder to a certain extent. The slit width at the opening of the framework groove is determined by the opening width w of the framework groove and the width L of the protective strip, so that the waterproof performance of the framework cable is not affected, the water-blocking tape is coated to obviously influence the optical fiber to be brought into the cable when the cable core is prepared because of the over-wide opening of the framework groove, and the difference between the opening width w of the framework groove and the width L of the protective strip is 0.4mm-1.0mm.
Preferably, the cross section of the protection strip is -shaped and the openings face the matrix of the optical fiber ribbons, and the two sides of the protection strip are provided with protection wings, so thatThe optical fiber tape is well embedded with the protection strip, and the outermost optical fiber tape is better protected from being influenced by the wrapping water blocking tape during cable entry. The length h of the protective wing extending towards the side of the optical fiber ribbon array near the central reinforcing core is not more than the thickness t of the single-layer optical fiber ribbon 3 So as to avoid the obstruction of the distribution of the water-blocking powder among the layers of optical fiber ribbons.
Preferably, the cross section of skeleton groove is trapezoidal or U-shaped, and its width increases gradually from inside to outside along the radial side of cross section, guarantees that optical fiber ribbon array is in steady state, has higher space utilization in the skeleton inslot, and the water blocking powder can more convenient scattering in the skeleton groove, guarantees the effect of blocking water. The ratio of the opening width w of the framework groove to the width L of the protection strip is 1.2-1.35.
The thickness of the protective strip 2 is 0.1 mm-0.2 mm and is smaller than that of the single-layer optical fiber ribbon 1, the bending modulus is between 100MPa and 500MPa, and the bending modulus is slightly higher than that of the optical fiber ribbon-merging resin, so that the optical fiber ribbon is better protected.
The stress state of the matrix side fibers is improved when the laminated optical fiber ribbon 1 enters the groove, so that the control difficulty of the groove entering process of the optical fiber ribbon 1 is reduced, the 12-24 core optical fiber ribbon 1 can be used for a skeleton type optical cable, and the optical fiber capacity of the skeleton type optical cable can be effectively increased; in addition, if the optical cable is not cut off and only windows at the corresponding positions when the skeleton type optical cable is in branch connection, the situation that the optical fiber ribbon 1 is accidentally injured can not occur due to the existence of the protection strip 2, and great convenience is brought to the optical cable construction under a complex state.
Further, the number of the skeleton grooves is 2-12, and each skeleton groove is provided with one optical fiber ribbon 1 and one protection strip 2 respectively.
Further, 1-12 optical fiber ribbons 1 are laid in the skeleton groove, and the core number of each optical fiber ribbon 1 is 4-24 cores, preferably 12-24 cores.
Further, the protection strip 2 is made of PET plastic (polyethylene terephthalate, i.e. polyester resin (Polyethylene Terephthalate)) or PP plastic.
Further, the protection strips 2 and the corresponding optical fiber ribbons 1 are fixed together and then put into the corresponding skeleton grooves together.
Further, the skeleton type optical fiber ribbon cable further comprises a tearing rope 4 which is clung to the inner wall of the outer sheath 8, so that the outer sheath 8 is convenient to tear. The framework 3 and the outer sheath 8 are both made of PE plastic.
The following are examples:
referring to fig. 1, 6 optical fibers are arranged in each optical fiber ribbon 1, the width of a single-layer optical fiber ribbon 1 is 1.6mm, the thickness is 0.3mm, and 6 optical fiber ribbons 1 are stacked in the radial direction in each skeleton groove. A PET protection strip 2 is placed on the optical fiber ribbon 1, the thickness is 0.15mm, a water blocking belt 6 is wrapped outside the framework 3, the protection strip 2 can be tightly attached to the water blocking belt 6 without buffer space, and therefore the diameter of the framework 3 can be 1-mm mm smaller than that of a conventional framework. The outer sheath 8 of PE material is extruded after the moisture-proof aluminum tape 7 is coated outside the framework 3 type cable core, and the tearing rope 4 can be arranged in the outer sheath 8 to form a novel framework type optical fiber ribbon optical cable.
The skeleton groove structure is shown in figure 2. The structural parameters and the waterproof test results are shown in table 1.
Table 1 example parameters and waterproof test table
In addition, a plurality of comparative examples were selected for the waterproof test as shown in table 2.
Table 2 comparative example parameters and waterproof test table
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (11)
1. The skeleton type optical fiber ribbon optical cable is characterized by comprising a cable core, wherein a water blocking tape is coated outside the cable core, the cable core comprises a central reinforcing core, a skeleton and an optical fiber ribbon, the central reinforcing core is embedded in a central hole of the skeleton, a spiral skeleton groove is formed in the outer side of the skeleton, and the optical fiber ribbon is stacked in the skeleton groove from inside to outside to form an optical fiber ribbon array;
the radial effective depth d of the skeleton groove is the distance from the notch edge of the skeleton groove to one surface of the optical fiber ribbon array, which is close to the central reinforcing core, and the opening width w is equal to the width L of the optical fiber ribbon array 0 The opening width w is the distance between two opposite edges of the notch of the skeleton groove;
the cable core further comprises a protection strip, the protection strip is arranged on one surface of the optical fiber ribbon far away from the central reinforcing core, and the protection strip completely covers one surface of the optical fiber ribbon far away from the central reinforcing core, so that one surface of the optical fiber ribbon matrix far away from the central reinforcing core is not exposed, and the optical fiber ribbon is protected, wherein the thickness t of the optical fiber ribbon array 2 Thickness t of the protective strip 1 The sum of the radial effective depth d of the skeleton grooves is smaller than or equal to the radial effective depth d of the skeleton grooves.
2. The skeleton fiber optic ribbon cable of claim 1, wherein the thickness t of the ribbon array 2 Thickness t of the protective strip 1 The sum is equal to the radial effective depth d of the backbone groove.
3. The skeleton type optical fiber ribbon optical cable according to claim 1, wherein the inner side of the water-blocking ribbon is adhered with water-blocking powder, and the width L of the protective strip is slightly larger than the width L of the optical fiber ribbon array when the protective strip and the optical fiber ribbon are in straight line shape 0 The method comprises the steps of carrying out a first treatment on the surface of the The difference between the opening width w of the skeleton groove and the width L of the protective strip is 0.4-mm-1.0 mm, and a gap exists between the protective strip and the groove side wall of the skeleton groove, so that water-blocking powder falls into the gap between the optical fiber ribbon array and the groove side wall of the skeleton groove for water prevention.
4. The skeleton type optical fiber ribbon cable according to claim 1, wherein the protection strip has a cross section of -shape and is opened toward the optical fiber ribbon matrix, both sides of the protection strip are provided with protection wings, and a length h of the protection wings extending toward a side of the optical fiber ribbon array near the central reinforcing core does not exceed a thickness t of the single-layer optical fiber ribbon 3 。
5. The skeleton type optical fiber ribbon cable according to claim 1, wherein the cross section of the skeleton groove is trapezoid or U-shaped, the width of the skeleton groove gradually increases from inside to outside along the radial direction of the cross section, the ratio of the opening width w of the skeleton groove to the width L of the protective strip is 1.2-1.35, and a gap exists between the protective strip and the groove side wall of the skeleton groove, so that water-blocking powder falls into the gap between the optical fiber ribbon array and the groove side wall of the skeleton groove for waterproofing.
6. The fiber optic ribbon cable core of claim 1 wherein there are 2-12 skeleton grooves, each of which is provided with one of the fiber optic ribbons and one of the protective strips.
7. The cable core of the skeleton-type optical fiber ribbon cable according to claim 3, wherein 1-12 optical fiber ribbons are laid in the skeleton groove, and the core number of each optical fiber ribbon is 4-24.
8. The fiber optic cable core of claim 7, wherein each fiber optic ribbon has a core count of 12-24 cores.
9. The skeleton type optical fiber ribbon optical cable according to claim 1, wherein the thickness of the protection strip is 0.1-mm-0.2 mm and is smaller than that of the single-layer optical fiber ribbon, the protection strip is made of PET plastic or PP plastic, and the bending modulus is 100-500 MPa.
10. The skeleton type fiber optic ribbon cable of claim 9, wherein the water-blocking tape is coated with a moisture-resistant aluminum tape and then extruded with an outer jacket, the skeleton type fiber optic ribbon cable further comprising a tear cord that is adhered to an inner wall of the outer jacket.
11. The skeleton type optical fiber ribbon cable according to claim 9, wherein the waterproof ribbon is coated with a moisture-proof aluminum ribbon and then an outer sheath is extruded, and the skeleton and the outer sheath are made of PE plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310601227.0A CN116299927B (en) | 2023-05-26 | 2023-05-26 | Skeleton type optical fiber ribbon optical cable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310601227.0A CN116299927B (en) | 2023-05-26 | 2023-05-26 | Skeleton type optical fiber ribbon optical cable |
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| CN116299927A CN116299927A (en) | 2023-06-23 |
| CN116299927B true CN116299927B (en) | 2023-08-01 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204188849U (en) * | 2014-11-10 | 2015-03-04 | 富通住电特种光缆（天津）有限公司 | A kind of skeleton cable |
| CN204188850U (en) * | 2014-11-10 | 2015-03-04 | 富通住电特种光缆（天津）有限公司 | A kind of skeleton cable |
| JP2017142285A (en) * | 2016-02-08 | 2017-08-17 | 住友電気工業株式会社 | Optical fiber cable |
| CN105759383A (en) * | 2016-04-15 | 2016-07-13 | 富通住电特种光缆（天津）有限公司 | Multilayer skeleton slot optical cable and manufacturing method thereof |
| CN111403092A (en) * | 2020-04-23 | 2020-07-10 | 苏州专创光电科技有限公司 | Cable or photoelectric composite cable for power system |
| CN215867270U (en) * | 2021-10-09 | 2022-02-18 | 深圳市世和光缆技术有限公司 | Flame-retardant framework type optical cable |
| CN216927193U (en) * | 2021-12-08 | 2022-07-08 | 通鼎互联信息股份有限公司 | Reinforced framework type optical cable |
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