CN210626742U - Lightning-proof layer stranded ribbon optical cable - Google Patents
Lightning-proof layer stranded ribbon optical cable Download PDFInfo
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- CN210626742U CN210626742U CN201922096902.0U CN201922096902U CN210626742U CN 210626742 U CN210626742 U CN 210626742U CN 201922096902 U CN201922096902 U CN 201922096902U CN 210626742 U CN210626742 U CN 210626742U
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Abstract
The utility model belongs to the cable field, especially relate to a layer stranded ribbon optical cable that can prevent lightning, have central reinforcement, loose sleeve pipe, band layer, outer jacket, every loose intraductal optic fibre area body that is equipped with an optic fibre area and constitutes by many optic fibres and the optic fibre area tie coat that bonds outside the optic fibre that is equipped with at least, its characterized in that loose intraductal wall parallel is equipped with many pairs of first area body isolation parts, separates into a plurality of separate chambers with loose sleeve intraduct, and the optic fibre area is located separate chamber; the central reinforcing piece, the loose tube, the belting layer, the outer protective layer and the optical fiber belt body are all made of non-metal materials; the utility model solves the problem that the additional attenuation is too large due to the mutual stress between two adjacent optical fiber ribbons in the loose sleeve; the utility model has the advantages of simple structure, lightning protection, large optical fiber density, no mutual stress of the optical fiber ribbon, good transmission performance and the like.
Description
Technical Field
The utility model belongs to the cable field especially relates to a layer stranded ribbon optical cable that can lightning protection.
Background
In the prior art, CN105467540A discloses a non-metal layer stranded ribbon cable capable of preventing lightning, which comprises a central reinforcement, a loose tube containing a plurality of optical fiber ribbons, an outer filling rope, a protective layer covering the outer filling rope and the loose tube, and a sheath layer located outside the protective layer, wherein each optical fiber ribbon has a plurality of optical fibers; its characterized in that have interior sheath, non-metal area and transition layer between protective layer and the restrictive coating, interior sheath extrusion molding cladding is outside the protective layer, and the non-metal area is located outside the interior sheath and seals interior sheath, and the transition level is located between non-metal area and the restrictive coating, and the non-metal area comprises coating layer, the many increase pieces that are arranged in parallel arrangement and each other and that the axis is located the coplanar that are located in the coating layer. The optical fiber ribbons in the loose sleeve are stacked, and when the optical cable is in a severe state, such as strong torsion or bending, the adjacent optical fiber ribbons in the loose sleeve are easy to be stressed mutually, so that the additional attenuation of the optical cable in the optical fiber ribbons is overlarge.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present invention discloses a lightning protection layer-stranded ribbon cable, which is realized by the following technical solution.
A layer stranded ribbon optical cable capable of preventing lightning comprises a central reinforcing part, loose sleeves, a belting layer and an outer protective layer, wherein the loose sleeves are stranded or vertically placed outside the central reinforcing part, the belting layer is coated outside the loose sleeves, the outer protective layer is extruded outside the belting layer, an optical fiber belt body is arranged in each loose sleeve and consists of at least one optical fiber belt, the optical fiber belt consists of a plurality of optical fibers and optical fiber belt bonding layers bonded outside the optical fibers, the optical fiber cable is characterized in that a plurality of pairs of first belt isolation parts are arranged on the inner wall of each loose sleeve in parallel to isolate the interior of the loose sleeve into a plurality of separate cavities, the optical fiber belts are positioned in the separate cavities, and the distance between each pair of first belt isolation parts is smaller than; the central reinforcing piece, the loose tube, the belting layer, the outer protective layer and the optical fiber belt body are all made of non-metal materials.
A layer stranded ribbon optical cable capable of preventing lightning comprises a central reinforcing part, a loose sleeve twisted or vertically placed outside the central reinforcing part, a belting layer coated outside the loose sleeve, and an outer protective layer extruded outside the belting layer, wherein an optical fiber belt body is arranged in each loose sleeve and consists of at least one optical fiber belt, each optical fiber belt consists of a plurality of optical fibers and an optical fiber belt bonding layer bonded outside the optical fibers, the optical fiber cable is characterized in that a plurality of pairs of first ribbon isolation parts are arranged on the inner wall of the loose sleeve in parallel, a first clamping groove is formed at the top end of each first ribbon isolation part, two corresponding first clamping grooves respectively clamp two ends of the optical fiber belt, the depth of each first clamping groove is smaller than the distance d between the outer edge of the optical fiber at the outermost side of the optical fiber belt and the outer edge of the optical fiber at the outermost side of the optical fiber belt, the optical fiber can be prevented from being clamped by the first ribbon isolation, the distance between the bottoms of the corresponding two first clamping grooves is greater than the width of the optical fiber ribbons, so that the adjacent two optical fiber ribbons are prevented from being contacted; the central reinforcing piece, the loose tube, the belting layer, the outer protective layer and the optical fiber belt body are all made of non-metal materials.
Of course, if the gap between two adjacent pairs of first ribbon separation members is sufficiently large, additional fiber ribbons can be placed between the two adjacent pairs of first ribbon separation members to increase the capacity of the fiber ribbons within the loose tube without contacting the two adjacent fiber ribbons.
The lightning-proof layer stranded optical fiber ribbon cable is characterized in that the loose tube and the first ribbon isolation component are integrally formed.
A layer stranded ribbon optical cable capable of preventing lightning comprises a central reinforcing part, loose tubes stranded or vertically placed outside the central reinforcing part, a belting layer coated outside the loose tubes, and an outer protective layer extruded outside the belting layer, wherein an optical fiber belt body is arranged in each loose tube and consists of at least one optical fiber belt, the optical fiber belt consists of a plurality of optical fibers and a bonding layer bonded outside the optical fibers, the optical fiber cable is characterized in that a plurality of first belt body isolation parts are arranged on the inner wall of the loose tube along the circumference, a first clamping groove is formed at the top end of each first belt body isolation part, a second belt body isolation part base is arranged in the middle of the loose tube, a second belt body isolation part corresponding to the first belt body isolation part is arranged on the periphery of the second belt body isolation part base, a second clamping groove is formed at the top end of each second belt body isolation part, and the loose tube wall body is connected with the second belt body isolation part base through two connecting parts, the base of the second ribbon isolation component is always positioned in the middle of the inner cavity of the loose tube, the corresponding first clamping groove and the second clamping groove clamp two ends of the optical fiber ribbon respectively, the depth between the first clamping groove and the second clamping groove is smaller than the distance d between the outer edge of the optical fiber at the outermost side of the optical fiber ribbon and the outer edge of the optical fiber ribbon where the outermost side optical fiber is located, the optical fiber can be prevented from being damaged by the first ribbon isolation component, the distance between the first ribbon isolation component and the corresponding second ribbon isolation component is smaller than the width of the optical fiber ribbon, the distance between the bottom of the first clamping groove and the corresponding second clamping groove is larger than the width of the optical fiber ribbon, and two adjacent optical fiber ribbons are; the central reinforcing piece, the loose tube, the belting layer, the outer protective layer and the optical fiber belt body are all made of non-metal materials.
The lightning-proof stranded ribbon optical cable is characterized in that the loose tube, the first ribbon isolation component, the second ribbon isolation component base, the connecting component and the second ribbon isolation component are integrally formed.
The lightning-proof stranded ribbon optical cable is characterized in that the base of the second ribbon isolation component is made of modified polypropylene or polybutylene terephthalate.
The lightning-proof layer stranded ribbon optical cable is characterized in that the second tape body isolation component is made of modified polypropylene or polybutylene terephthalate.
The lightning-proof layer stranded ribbon optical cable is characterized in that the connecting component is made of modified polypropylene or polybutylene terephthalate.
The lightning-proof layer stranded ribbon optical cable is characterized in that the outer protective layer is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or low-smoke halogen-free polyethylene or nylon.
The lightning-proof layer stranded optical fiber ribbon cable is characterized in that the reinforcing member is made of glass fiber reinforced plastics.
The lightning-proof layer stranded ribbon cable is characterized in that the material of the wrapping layer is a glass fiber tape or a water-blocking tape or non-woven fabric.
The lightning-proof stranded optical fiber ribbon cable is characterized in that the optical fiber is G-type, Aa-type, Ab-type or Ac-type.
The lightning-proof layer stranded ribbon optical cable is characterized in that the loose tube is made of modified polypropylene or polybutylene terephthalate.
The lightning-proof layer stranded ribbon optical cable is characterized in that the material of the bonding layer of the optical fiber ribbon is resin.
The utility model discloses a set up first area body spacer and second area body spacer in loose sleeve to each optic fibre that makes in the loose sleeve is contactless each other, has avoided leading to the increase of optic fibre annex decay because of mutual atress between the optic fibre area.
The utility model discloses in, all materials of optical cable all are non-metallic material, therefore the optical cable has the lightning protection efficiency, can be used to the region that the thunder and lightning is multiple and lay.
The utility model has the advantages of simple structure, lightning protection, large optical fiber density, no mutual stress of the optical fiber ribbon, good transmission performance and the like.
Drawings
Fig. 1 is a schematic view of the three-dimensional structure of the present invention.
Fig. 2 is a schematic structural view of a loose tube and an optical fiber ribbon body in the tube according to embodiment 1 of the present invention.
Fig. 3 is a schematic structural view of a loose tube and an optical fiber ribbon body in the tube according to the embodiment of the present invention.
Fig. 4 is a schematic structural view of a loose tube and an optical fiber ribbon in the tube according to embodiment 3 of the present invention.
Fig. 5 is a schematic view of a loose tube structure according to embodiment 3 of the present invention.
Fig. 6 is a schematic diagram of the structure of the optical fiber ribbon of the present invention.
In the figure: 1. the optical fiber ribbon comprises an outer protective layer, 2. a wrapping tape layer, 3. a central reinforcing member, 4. an optical fiber ribbon body, 41. an optical fiber ribbon, 411. optical fibers, 412, an optical fiber ribbon bonding layer, 5. a loose sleeve, 51. a loose sleeve main body, 52. a compartment, 53. a first ribbon isolation component, 54. a second ribbon isolation component base, 55. a connecting component, 56. a second ribbon isolation component and d. the distance between the outermost optical fibers of the optical fiber ribbon and the edge of the optical fiber ribbon where the outermost optical fibers are located.
Detailed Description
Example 1
Referring to fig. 1, 2 and 6, a lightning-proof stranded ribbon cable having a central strength member 3, a loose tube 5 stranded or straight outside the central strength member, a cladding layer 2 coated outside the loose tube, and an outer sheath 1 extruded outside the cladding layer 2, wherein an optical fiber ribbon 4 is disposed in each loose tube 5, the optical fiber ribbon 4 is formed by at least one optical fiber ribbon 41, the optical fiber ribbon is formed by a plurality of optical fibers 411 and a ribbon bonding layer 412 bonded outside the optical fibers 411, and the lightning-proof stranded ribbon cable is characterized in that a plurality of pairs of first ribbon isolating members 53 are disposed in parallel on an inner wall of the loose tube 5 to isolate the inside of the loose tube into a plurality of compartments 52, the optical fiber ribbons 41 are disposed in the compartments 52, and a distance between each pair of the first ribbon isolating members 53 is smaller than a width of the optical fiber ribbon 41 to prevent adjacent optical fiber ribbons 41 from contacting; the central reinforcing part 3, the loose tube 5, the belting layer 2, the outer sheath 1 and the optical fiber belt body 4 are all made of non-metal materials.
The lightning protection layer-stranded ribbon optical cable is characterized in that the loose tube 5 and the first ribbon isolation member 53 are integrally formed.
Example 2
Referring to fig. 1, 3 and 6, a lightning-proof stranded ribbon optical cable includes a central strength member 3, a loose tube 5 stranded or straight outside the central strength member, a cladding layer 2 coated outside the loose tube, and an outer sheath 1 extruded outside the cladding layer 2, wherein an optical fiber ribbon 4 is disposed in each loose tube 5, the optical fiber ribbon 4 is formed by at least one optical fiber ribbon 41, the optical fiber ribbon is formed by a plurality of optical fibers 411 and a ribbon bonding layer 412 bonded outside the optical fibers 411, the lightning-proof stranded ribbon optical cable is characterized in that a plurality of pairs of first ribbon separating members 53 are disposed in parallel on an inner wall of the loose tube 5, a first clamping groove is formed at a top end of each first ribbon separating member 53, two corresponding first clamping grooves respectively clamp two ends of the optical fiber ribbon 41, a depth of the first clamping groove is smaller than a distance d between an outer edge of an outermost optical fiber of the optical fiber ribbon and an outer edge of the outermost optical fiber, the first ribbon separation members 53 are prevented from pinching the optical fibers 411, the pitch of each pair of first ribbon separation members 53 is smaller than the width of the optical fiber ribbon 41, and the distance between the bottoms of the corresponding two first clamping grooves is larger than the width of the optical fiber ribbon 41, so that the adjacent two optical fiber ribbons 41 are prevented from contacting; the central reinforcing part 3, the loose tube 5, the belting layer 2, the outer sheath 1 and the optical fiber belt body 4 are all made of non-metal materials.
Of course, if the gap between two adjacent pairs of first ribbon separation members 53 is sufficiently large, additional fiber optic ribbons can be placed between two adjacent pairs of first ribbon separation members 53 to increase the capacity of the fiber optic ribbons within loose tube 5 without contacting the adjacent fiber optic ribbons.
The lightning protection layer-stranded ribbon optical cable is characterized in that the loose tube 5 and the first ribbon isolation member 53 are integrally formed.
Example 3
Referring to fig. 1, 4, 5 and 6, a lightning-proof stranded ribbon optical cable includes a central strength member 3, a loose tube 5 stranded or straight outside the central strength member, a cladding layer 2 covering the loose tube, and an outer sheath 1 extruded outside the cladding layer 2, wherein an optical fiber ribbon 4 is disposed in each loose tube 5, the optical fiber ribbon 4 is formed by at least one optical fiber ribbon 41, the optical fiber ribbon is formed by a plurality of optical fibers 411 and an optical fiber ribbon bonding layer 412 bonded to the optical fibers 411, the lightning-proof stranded ribbon optical cable is characterized in that a plurality of first ribbon isolation members 53 are disposed on the inner wall of the loose tube 5 along the circumference, a first clamping groove is formed at the top end of each first ribbon isolation member 53, a second ribbon isolation member base 54 is disposed at the middle of the loose tube ribbon 5, a second ribbon isolation member 56 corresponding to the first ribbon isolation member 53 is disposed on the outer circumference of the second ribbon isolation member base 54, a second holding groove is formed at the top end of each second tape separation member 56, the wall body of the loose tube 5 is connected with the second tape separation member base 54 through two connecting members 55, so that the second tape separation member base 54 is always positioned in the middle of the inner cavity of the loose tube 5, and the corresponding one of the first holding groove and one of the second holding groove respectively hold both ends of the optical fiber ribbon 41, the depth between the first clamping groove and the second clamping groove is less than the distance d between the outer edge of the outermost optical fiber of the optical fiber ribbon and the outer edge of the optical fiber ribbon where the outermost optical fiber is located, the first ribbon separator members 53 are prevented from pinching the optical fibers 411, the first ribbon separator members 53 and the corresponding second ribbon separator members 56 are spaced apart by a distance less than the width of the optical fiber ribbon 41, the distance between the bottom of the first clamping groove and the corresponding second clamping groove is larger than the width of the optical fiber ribbon 41, so that two adjacent optical fiber ribbons 41 are prevented from being contacted; the central reinforcing part 3, the loose tube 5, the belting layer 2, the outer sheath 1 and the optical fiber belt body 4 are all made of non-metal materials.
The lightning protection stranded optical ribbon cable is characterized in that the loose tube 5, the first ribbon isolation member 53, the second ribbon isolation member base 54, the connecting member 55 and the second ribbon isolation member 56 are integrally formed.
The lightning-proof stranded ribbon cable is characterized in that the second tape isolating component base 54 is made of modified polypropylene or polybutylene terephthalate.
The lightning-proof stranded ribbon cable is characterized in that the second tape isolating part 56 is made of modified polypropylene or polybutylene terephthalate.
The lightning-proof layer stranded ribbon optical cable is characterized in that the connecting component 55 is made of modified polypropylene or polybutylene terephthalate.
The lightning protection layer-stranded ribbon cable according to any of the embodiments above, characterized in that the material of the outer sheath 1 is low density polyethylene or medium density polyethylene or high density polyethylene or low smoke zero halogen polyethylene or nylon.
A lightning protection layer-stranded optical ribbon cable according to any of the above embodiments, wherein the material of the strength member 3 is glass fiber reinforced plastic.
The lightning protection layer-stranded ribbon cable according to any embodiment of the above embodiments is characterized in that the material of the wrapping layer 2 is a glass fiber tape, a water blocking tape or a non-woven fabric.
A lightning protection stranded optical fiber ribbon cable according to any of the above embodiments, wherein the optical fiber 411 is of g.652 type, g.653 type, g.654 type, g.655 type, g.656 type, g.657 type, A1a type, A1b type, or A1c type.
The lightning protection layer stranded ribbon cable according to any of the embodiments above, characterized in that the material of the loose tube 5 is modified polypropylene or polybutylene terephthalate.
A lightning protection layer stranded optical ribbon cable according to any of the above embodiments, wherein the ribbon bonding layer 412 is made of resin.
The utility model discloses a set up first area body spacer 53 and second area body spacer 56 in loose tube 5 to make each optic fibre 411 in the loose tube 5 contactless each other, avoided leading to optic fibre 411 annex decay increase because of mutual atress between the optic fibre area 411.
The utility model discloses in, all materials of optical cable all are non-metallic material, therefore the optical cable has the lightning protection efficiency, can be used to the region that the thunder and lightning is multiple and lay.
The utility model provides an optical cable because crooked or twist reverse the isopenistic factor, two adjacent optical fiber ribbons in the loose sleeve atress each other lead to additional decay too big to influence the problem of the transmission of light signal in optic fibre.
The utility model discloses following beneficial effect has: simple structure, lightning protection, high optical fiber density, no mutual stress of optical fiber ribbons, good transmission performance and the like.
The above-mentioned embodiments are merely preferred technical solutions of the present invention, and should not be construed as limitations of the present invention. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (10)
1. A lightning-proof layer-stranded ribbon optical cable comprises a central reinforcing member (3), a loose tube (5) stranded or directly placed outside the central reinforcing member, a band layer (2) coated outside the loose tube, an outer protective layer (1) extruded outside the band layer (2), an optical fiber belt body (4) is arranged in each loose tube (5), the optical fiber belt body (4) is composed of at least one optical fiber belt (41), the optical fiber ribbon is composed of a plurality of optical fibers (411) and an optical fiber ribbon bonding layer (412) bonded outside the optical fibers (411), it is characterized in that a plurality of pairs of first band body isolation parts (53) are arranged on the inner wall of the loose tube (5) in parallel to isolate the interior of the loose tube into a plurality of separate cavities (52), the optical fiber bands (41) are positioned in the separate cavities (52), the distance between each pair of first ribbon isolation components (53) is smaller than the width of the optical fiber ribbon (41), so that two adjacent optical fiber ribbons (41) are prevented from being contacted; the central reinforcing part (3), the loose tube (5), the wrapping layer (2), the outer protective layer (1) and the optical fiber belt body (4) are all made of non-metal materials.
2. A layer stranded ribbon optical cable capable of preventing lightning, which comprises a central reinforcing part (3), a loose tube (5) stranded or vertically placed outside the central reinforcing part, a belting layer (2) coated outside the loose tube, and an outer protective layer (1) extruded outside the belting layer (2), wherein an optical fiber belt body (4) is arranged in each loose tube (5), the optical fiber belt body (4) is composed of at least one optical fiber belt (41), the optical fiber belt is composed of a plurality of optical fibers (411) and an optical fiber belt bonding layer (412) bonded outside the optical fibers (411), and the optical fiber cable is characterized in that a plurality of pairs of first belt body isolation parts (53) are arranged in parallel on the inner wall of the loose tube (5), a first clamping groove is formed at the top end of each first belt body isolation part (53), two corresponding first clamping grooves respectively clamp two ends of the optical fiber belt (41), the depth of the first clamping groove is smaller than the distance d between the outer edge of the optical fiber at the outermost side of the, the optical fiber (411) can be prevented from being pinched by the first ribbon separation components (53), the distance between each pair of the first ribbon separation components (53) is smaller than the width of the optical fiber ribbon (41), and the distance between the bottoms of the corresponding two first clamping grooves is larger than the width of the optical fiber ribbon (41); the central reinforcing part (3), the loose tube (5), the wrapping layer (2), the outer protective layer (1) and the optical fiber belt body (4) are all made of non-metal materials.
3. A layer stranded ribbon optical cable capable of preventing lightning comprises a central reinforcing part (3), a loose tube (5) stranded or vertically placed outside the central reinforcing part, a belting layer (2) coated outside the loose tube and an outer protective layer (1) extruded outside the belting layer (2), wherein an optical fiber belt body (4) is arranged in each loose tube (5), the optical fiber belt body (4) is composed of at least one optical fiber belt (41), the optical fiber belt is composed of a plurality of optical fibers (411) and an optical fiber belt bonding layer (412) bonded outside the optical fibers (411), and the optical fiber cable is characterized in that a plurality of first ribbon isolation parts (53) are arranged on the inner wall of the loose tube (5) along the circumference, a first clamping groove is formed at the top end of each first ribbon isolation part (53), a second ribbon isolation part base (54) is arranged in the middle of the loose tube (5), and a second ribbon isolation part (56) corresponding to the first ribbon isolation part (53) is arranged on the periphery of the second ribbon isolation part base (54), a second clamping groove is formed at the top end of each second strip body isolation component (56), the wall body of the loose tube (5) is connected with the base (54) of the second strip body isolation component through two connecting parts (55), a corresponding first clamping groove and a corresponding second clamping groove respectively clamp two ends of the optical fiber ribbon (41), the depth between the first clamping groove and the second clamping groove is smaller than the distance d between the outer edge of the outermost optical fiber of the optical fiber ribbon and the outer edge of the optical fiber ribbon where the outermost optical fiber is located, the distance between the first strip body isolation component (53) and the corresponding second strip body isolation component (56) is smaller than the width of the optical fiber ribbon (41), and the distance between the bottom of the first clamping groove and the corresponding second clamping groove is larger than the width of the optical fiber ribbon (41); the central reinforcing part (3), the loose tube (5), the wrapping layer (2), the outer protective layer (1) and the optical fiber belt body (4) are all made of non-metal materials.
4. A lightning protected stranded ribbon cable according to claim 3, wherein said loose tube (5), first ribbon separator (53), second ribbon separator base (54), joining means (55), second ribbon separator (56) are integrally formed.
5. A lightning protection stranded optical ribbon cable according to claim 3, wherein the material of said outer sheath (1) is low density polyethylene or medium density polyethylene or high density polyethylene or low smoke zero halogen polyethylene or nylon.
6. A lightning protection stranded optical ribbon cable according to claim 3, characterized in that the material of said strength members (3) is glass fiber reinforced plastic.
7. A lightning protection stranded optical ribbon cable according to claim 3, characterized in that the material of said tape layer (2) is a glass fiber tape or a water-blocking tape or a non-woven fabric.
8. A lightning protection stranded ribbon cable according to claim 3, characterized in that said optical fibers (411) are of g.652 type or g.653 type or g.654 type or g.655 type or g.656 type or g.657 type or A1a type or A1b type or A1c type.
9. A lightning protection stranded optical ribbon cable according to claim 3, characterized in that the material of said loose tube (5) is modified polypropylene or polybutylene terephthalate.
10. A lightning protected stranded ribbon cable according to claim 3, wherein said ribbon bond layer (412) material is a resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922096902.0U CN210626742U (en) | 2019-11-29 | 2019-11-29 | Lightning-proof layer stranded ribbon optical cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922096902.0U CN210626742U (en) | 2019-11-29 | 2019-11-29 | Lightning-proof layer stranded ribbon optical cable |
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| CN210626742U true CN210626742U (en) | 2020-05-26 |
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| CN201922096902.0U Active CN210626742U (en) | 2019-11-29 | 2019-11-29 | Lightning-proof layer stranded ribbon optical cable |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112186700A (en) * | 2020-09-27 | 2021-01-05 | 秦锦峰 | Lightning protection method for power transmission line |
| CN113534382A (en) * | 2021-07-28 | 2021-10-22 | 常熟共益信息科技有限公司 | Layer-stranded optical cable with pressure-resistant loose sleeve, ribbon optical cable and manufacturing method thereof |
-
2019
- 2019-11-29 CN CN201922096902.0U patent/CN210626742U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112186700A (en) * | 2020-09-27 | 2021-01-05 | 秦锦峰 | Lightning protection method for power transmission line |
| CN113534382A (en) * | 2021-07-28 | 2021-10-22 | 常熟共益信息科技有限公司 | Layer-stranded optical cable with pressure-resistant loose sleeve, ribbon optical cable and manufacturing method thereof |
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Address after: 215542 No.1 Zhongli Road, Changkun Industrial Park, Shajiabang Town, Changshu City, Suzhou City, Jiangsu Province Patentee after: Changfei photoelectric cable (Suzhou) Co.,Ltd. Address before: 215542 No.1 Zhongli Road, Changkun Industrial Park, Shajiabang Town, Changshu City, Suzhou City, Jiangsu Province Patentee before: YANGTZE ZHONGLI OPTICAL FIBRE AND CABLE (JIANGSU) Co.,Ltd. |
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