CN113889303A - Photoelectric hybrid cable for smart city road pole and matched construction method - Google Patents
Photoelectric hybrid cable for smart city road pole and matched construction method Download PDFInfo
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- CN113889303A CN113889303A CN202111131180.3A CN202111131180A CN113889303A CN 113889303 A CN113889303 A CN 113889303A CN 202111131180 A CN202111131180 A CN 202111131180A CN 113889303 A CN113889303 A CN 113889303A
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- 238000010276 construction Methods 0.000 title claims abstract description 28
- 230000003287 optical effect Effects 0.000 claims abstract description 47
- 239000013307 optical fiber Substances 0.000 claims abstract description 24
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 14
- 229920006231 aramid fiber Polymers 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- 239000000779 smoke Substances 0.000 claims description 6
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 5
- 239000003063 flame retardant Substances 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 239000003566 sealing material Substances 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005622 photoelectricity Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/005—Power cables including optical transmission elements
-
- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/22—Cables including at least one electrical conductor together with optical fibres
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
- H01B7/183—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of an outer sheath
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/221—Longitudinally placed metal wires or tapes
- H01B7/225—Longitudinally placed metal wires or tapes forming part of an outer sheath
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/14—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention relates to a photoelectric hybrid cable for a smart city road pole and a matched construction method, wherein the photoelectric hybrid cable comprises a plurality of groups of optical units and electric units, each optical unit comprises 2 or 4 tightly sleeved optical fibers, each tightly sleeved optical fiber comprises a plurality of optical fibers and a tightly covered layer coated outside the optical fibers, an armor layer is coated outside each tightly sleeved optical fiber, a metal braid layer is coated outside each armor layer, aramid fiber yarns are coated outside each metal braid layer, and an optical unit sheath layer is coated outside each aramid fiber yarn; the electric unit comprises an electric stranded wire and an electric unit sheath layer coated outside the electric stranded wire; the optical units and the electric units are arranged in a flat support mode, an outer sheath is extruded outside to form a cable, and a reinforcing piece is arranged in the outer sheath; during construction, a main cable and branch cables are separated, branch nodes are arranged at the positions, close to the road rods, of the main cables, and the main cables are connected with the road rods through the branch cables; the number of the optical units and the electric units in the photoelectric hybrid cable can be flexibly changed according to actual requirements, the structure is simple, and the construction cost can be reduced and the construction difficulty can be reduced by matching a matched construction method.
Description
Technical Field
The invention relates to the technical field of photoelectric hybrid cables, in particular to a photoelectric hybrid cable for a smart city road pole and a matched construction method.
Background
The street lamp network is a carrier of smart city application facilities, can integrate public infrastructure facilities such as wireless communication, smart lighting, video monitoring, traffic management, environmental monitoring and the like, realizes multifunction, and can carry monitoring probes of public security and traffic management systems to carry out video monitoring on public safety of roads; one or more micro base stations, an auxiliary framework wireless communication network and the like can be simultaneously carried;
however, when a street lamp network is built at the present stage, an independent signal cable and a cable need to be erected for each pole from the comprehensive cabinet end, so that the construction cost is high, and the construction period is long.
Therefore, there is a need for a new optical/electrical hybrid cable for road poles and a method for constructing the same.
Disclosure of Invention
Therefore, the invention aims to solve the technical problems that in the prior art, when a street lamp network is established, an independent signal cable and a cable need to be erected for each pole from the comprehensive cabinet end, the construction cost is high, and the construction period is long.
In order to solve the technical problems, the invention provides a photoelectric hybrid cable for a smart city road pole and a matched construction method, wherein the photoelectric hybrid cable comprises a plurality of groups of optical units and electric units, each optical unit comprises 2 or 4 tightly sleeved optical fibers, each tightly sleeved optical fiber comprises a plurality of optical fibers and a tight covering layer coated outside the optical fibers, an armor layer is coated outside each tightly sleeved optical fiber, a metal braid layer is coated outside each armor layer, aramid fiber yarns are coated outside each metal braid layer, and an optical unit sheathing layer is coated outside each aramid fiber yarn; the electric unit comprises an electric stranded wire and an electric unit sheath layer coated outside the electric stranded wire; the optical units and the electric units are arranged in a flat support mode, an outer sheath is extruded outside to form a cable, and a reinforcing piece is arranged in the outer sheath.
In one embodiment of the invention, the reinforcing members are provided in plural numbers, and the reinforcing members are arranged in parallel symmetrically or irregularly in the outer sheath.
In one embodiment of the invention, the cross-sectional area of the outer sheath accounts for 60-85% of the cross-sectional area of the whole cable, and the wall thickness of the outer sheath is 1-3 mm.
In one embodiment of the invention, the reinforcement is a non-metallic reinforcement.
In one embodiment of the present invention, the outer sheath is a low smoke zero halogen outer sheath or a polyethylene outer sheath.
In one embodiment of the present invention, the optical unit sheath layer is a low smoke zero halogen flame retardant outer sheath layer.
A matched construction method of a photoelectric hybrid cable for a smart city road pole comprises the following steps,
step 1: laying a photoelectric mixed main cable between the comprehensive cabinet and the lamp post;
step 2: in the section of the photoelectric mixed main cable close to each lamp post, a special stripping knife is used for stripping a small skylight on the outer sheath to serve as a node for drawing and connecting the cables;
and step 3: shearing the needed electric unit and optical unit at the next node of the target node, and drawing out the electric unit and the optical unit from the target node;
and 4, step 4: after the electric unit and the optical unit are drawn out, plugging the small skylight;
and 5: and then the optical unit and the electric unit are connected with terminal equipment on the lamp post through branch cables, and waterproof protection is well performed.
In one embodiment of the invention, the small skylight is a square small skylight with the width of 20-30 cm.
In one embodiment of the present invention, the branch cable is a hybrid optical/electrical cable with both ends prefabricated as ends.
In one embodiment of the invention, the small skylight is plugged with a waterproof sealing material.
Compared with the prior art, the technical scheme of the invention has the following advantages:
according to the photoelectric hybrid cable for the road poles of the smart city and the matched construction method, the whole photoelectric hybrid cable is simple in structure, high in tensile strength and good in flame retardant effect, the number of the optical units and the electric units in the photoelectric hybrid cable can be set according to actual use requirements, the matched construction scheme is matched, a main cable and branch cables are separated, branch nodes are arranged at positions, close to the road poles, of the main cable, and the branch cables are connected with the road poles, so that in the construction process, the whole line can meet the use requirements of a plurality of road poles only by laying the photoelectric hybrid cable once, the construction difficulty is reduced, and meanwhile the construction cost is saved.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference is now made to the following detailed description of the embodiments of the present disclosure taken in conjunction with the accompanying drawings, in which
Fig. 1 is a schematic structural view of an optical-electrical hybrid cable according to the present invention;
FIG. 2 is a schematic diagram of the structure of a light unit of the present invention;
FIG. 3 is a schematic view of the overall construction configuration of the present invention.
The specification reference numbers indicate: 1. a light unit; 11. tightly sleeving the optical fiber; 12. an optical fiber; 13. a tight wrapping layer; 14. an armor layer; 15. a metal braid layer; 16. aramid fiber yarn; 17. an optical unit jacket layer; 2. an electrical unit; 21. electrically stranding; 22. an electrical unit jacket layer; 3. an outer sheath; 31. a small skylight; 4. a reinforcement; 5. a comprehensive cabinet; 6. a road rod.
Detailed Description
The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.
Referring to fig. 1 and 2, the photoelectric hybrid cable for the smart city road pole of the invention comprises a plurality of groups of optical units 1 and electric units 2, wherein each optical unit 1 comprises 2 or 4 tight-sleeved optical fibers 11, each tight-sleeved optical fiber 11 comprises a plurality of optical fibers 12 and a tight-covering layer 13 covering the optical fibers 12, an armor layer 14 covers the tight-sleeved optical fibers 11, a metal braid layer 15 covers the armor layer 14, an aramid fiber yarn 16 covers the metal braid layer 15, and an optical unit sheath layer 17 covers the aramid fiber yarn 16; the electric unit 2 comprises an electric stranded wire 21 and an electric unit sheath layer 22 coated outside the electric stranded wire 21; the optical units 1 and the electric units 2 are arranged in a flat support mode, an outer sheath 3 is extruded outside to form a cable, and a reinforcing piece 4 is arranged in the outer sheath 3; according to the requirement that 2 optical units and 2 electrical units are used by an antenna arranged on each road rod 6, and the number of the road rods 6 on the circuit is combined, the number of the optical units 1 and the electrical units 2 in the cable can be adjusted, wherein the optical units 1 adopt 2 cores or 4 cores, the 2 cores can meet the use requirement of the existing equipment, and the 4 cores can reserve a group of circuits for standby when meeting the use requirement of the equipment; the electric unit 2 selects power lines with different grades according to actual working conditions for use.
Meanwhile, it is conceivable that the extra length of the optical fiber is a key factor determining the final performance of the optical cable, and therefore, in the processing process, attention needs to be paid to ensuring the consistency of the extra lengths of the inner and outer sheath optical fibers.
Further, the reinforcing members 4 are provided with a plurality of reinforcing members 4, the reinforcing members 4 are symmetrically arranged in parallel or irregularly arranged in the outer sheath 3, and the reinforcing members 4 can be made of steel wires, FRP or KFRP materials.
Furthermore, the cross-sectional area of the outer sheath 3 accounts for 60% -85% of the cross-sectional area of the whole cable, the wall thickness of the outer sheath 3 is 1mm-3mm, the outer sheath 3 can enhance the insulating property of the cable and simultaneously protect the interior of the cable from being damaged, the outer sheath 3 is provided with proper thickness, the protective property is guaranteed, the weight of the cable is not too heavy, and the overall use performance of the cable is guaranteed.
Furthermore, the reinforcing part 4 is a nonmetal reinforcing part, so that the tensile strength of the cable is improved, the weight of the photoelectric hybrid cable can be reduced, and the construction difficulty is reduced.
Further, the outer sheath 3 is a low smoke zero halogen outer sheath or a polyethylene outer sheath.
Further, the optical unit sheath layer 17 is a low-smoke halogen-free flame-retardant outer sheath layer, and can achieve good flame-retardant and protective effects.
Referring to fig. 3, a method for constructing a photoelectric hybrid cable for a smart city road pole includes the following steps,
step 1: laying a photoelectric mixed main cable between the comprehensive cabinet 5 and the road rod 6;
step 2: in the section of the photoelectric mixed main cable close to each road pole 6, a special stripping knife is used for stripping a small skylight 31 on the outer sheath 3 to serve as a node for drawing and connecting cables, a main cable and a branch cable are separated, a branch node is arranged at the position of the main cable close to the road pole 6, a needed electric unit 2 and an optical unit 1 are led out from the branch node and are connected with the road poles 6 through the branch cable, and in the construction process, the whole line can meet the use requirements of a plurality of road poles 6 only by laying the photoelectric mixed cable once, so that the construction difficulty is reduced, and the construction cost is saved;
and step 3: cutting off the needed electric unit 2 and optical unit 1 at the next node of the target node, and drawing out the electric unit 2 and the optical unit 1 from the target node; the needed optical unit 1 and the needed electric unit 2 are cut off at the next node of the target node, so that the electric unit 2 and the optical unit 1 have enough surplus length, and the optical unit is conveniently drawn out from the target node and connected with a road rod end;
and 4, step 4: after the electric unit 2 and the optical unit 1 are drawn out, the small skylight 31 is plugged;
and 5: and then the optical unit 1 and the electric unit 2 are connected with terminal equipment on the road pole 6 through branch cables, and waterproof protection is well performed.
Furthermore, the small skylight 31 is a square small skylight with the width of 20-30cm, and under the condition that the cable is conveniently cut and fished by constructors, the size of the small skylight 31 is not too large, so that the small skylight 31 is conveniently plugged after the operation is finished, and foreign matters and water are prevented from entering the inside of the cable to influence the use.
Furthermore, branch cable is the mixed cable of photoelectricity that both ends were prefabricated into the end, and branch cable is according to different length demands, and the prefabricated end that both ends can the high-speed joint is prefabricated into in the mill to the branch cable, and the one end and the equipment connection on the way pole 6 of branch cable, the other end and the mixed main push-towing rope of photoelectricity are connected.
Furthermore, the small skylight 31 is sealed by waterproof sealing materials, so that water and other foreign matters are prevented from entering the cable to influence the normal use of the cable.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. The photoelectric hybrid cable for the smart city road pole is characterized by comprising a plurality of groups of optical units and electric units, wherein each optical unit comprises 2 or 4 tight-sleeved optical fibers, each tight-sleeved optical fiber comprises a plurality of optical fibers and a tight covering layer coated outside the optical fibers, an armor layer is coated outside each tight-sleeved optical fiber, a metal braid layer is coated outside the armor layer, aramid fiber yarns are coated outside the metal braid layer, and an optical unit sheath layer is coated outside the aramid fiber yarns; the electric unit comprises an electric stranded wire and an electric unit sheath layer coated outside the electric stranded wire; the optical units and the electric units are arranged in a flat support mode, an outer sheath is extruded outside to form a cable, and a reinforcing piece is arranged in the outer sheath.
2. The hybrid cable of claim 1, wherein: the reinforcing piece is provided with many, just the reinforcing piece parallel symmetry sets up or irregularly sets up in the oversheath.
3. The hybrid cable of claim 1, wherein: the cross-sectional area of the outer sheath accounts for 60% -85% of the cross-sectional area of the whole cable, and the wall thickness of the outer sheath is 1mm-3 mm.
4. The hybrid cable of claim 1, wherein: the reinforcement is a non-metallic reinforcement.
5. The hybrid cable of claim 1, wherein: the outer sheath is a low-smoke halogen-free outer sheath or a polyethylene outer sheath.
6. The hybrid cable of claim 1, wherein: the optical unit sheath layer is a low-smoke halogen-free flame-retardant outer sheath layer.
7. A matched construction method of a photoelectric hybrid cable for a smart city road pole is characterized by comprising the following steps: comprises the following steps of (a) carrying out,
step 1: laying a photoelectric mixed main cable between the comprehensive cabinet and the lamp post;
step 2: in the section of the photoelectric mixed main cable close to each lamp post, a special stripping knife is used for stripping a small skylight on the outer sheath to serve as a node for drawing and connecting the cables;
and step 3: shearing the needed electric unit and optical unit at the next node of the target node, and drawing out the electric unit and the optical unit from the target node;
and 4, step 4: after the electric unit and the optical unit are drawn out, plugging the small skylight;
and 5: and then the optical unit and the electric unit are connected with terminal equipment on the lamp post through branch cables, and waterproof protection is well performed.
8. The construction method of the smart city road pole optical/electrical hybrid cable according to claim 7, wherein: the small skylight is a square small skylight with the width of 20-30 cm.
9. The construction method of the smart city road pole optical/electrical hybrid cable according to claim 7, wherein: the branch cable is a photoelectric mixed cable with two ends prefabricated into ends.
10. The construction method of the smart city road pole optical/electrical hybrid cable according to claim 7, wherein: and (3) plugging the small skylight by using a waterproof sealing material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111131180.3A CN113889303A (en) | 2021-09-26 | 2021-09-26 | Photoelectric hybrid cable for smart city road pole and matched construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111131180.3A CN113889303A (en) | 2021-09-26 | 2021-09-26 | Photoelectric hybrid cable for smart city road pole and matched construction method |
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| Publication Number | Publication Date |
|---|---|
| CN113889303A true CN113889303A (en) | 2022-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111131180.3A Pending CN113889303A (en) | 2021-09-26 | 2021-09-26 | Photoelectric hybrid cable for smart city road pole and matched construction method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494005A (en) * | 2018-12-27 | 2019-03-19 | 通鼎互联信息股份有限公司 | Communication base station RRU embossing armouring photoelectric mixed cable |
| CN110908056A (en) * | 2019-12-28 | 2020-03-24 | 江苏亨通光电股份有限公司 | High-low temperature resistant remote optical cable and manufacturing process thereof |
| CN112201400A (en) * | 2020-09-28 | 2021-01-08 | 深圳市特发信息股份有限公司 | Photoelectric composite optical cable easy to branch |
| CN212809900U (en) * | 2020-07-27 | 2021-03-26 | 长飞光纤光缆深圳有限公司 | Direct-buried novel photoelectric hybrid cable and connector |
-
2021
- 2021-09-26 CN CN202111131180.3A patent/CN113889303A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109494005A (en) * | 2018-12-27 | 2019-03-19 | 通鼎互联信息股份有限公司 | Communication base station RRU embossing armouring photoelectric mixed cable |
| CN110908056A (en) * | 2019-12-28 | 2020-03-24 | 江苏亨通光电股份有限公司 | High-low temperature resistant remote optical cable and manufacturing process thereof |
| CN212809900U (en) * | 2020-07-27 | 2021-03-26 | 长飞光纤光缆深圳有限公司 | Direct-buried novel photoelectric hybrid cable and connector |
| CN112201400A (en) * | 2020-09-28 | 2021-01-08 | 深圳市特发信息股份有限公司 | Photoelectric composite optical cable easy to branch |
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Application publication date: 20220104 |