CN111077619A - Rodent-resistant optical cable and manufacturing method thereof - Google Patents
Rodent-resistant optical cable and manufacturing method thereof Download PDFInfo
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- CN111077619A CN111077619A CN202010167084.3A CN202010167084A CN111077619A CN 111077619 A CN111077619 A CN 111077619A CN 202010167084 A CN202010167084 A CN 202010167084A CN 111077619 A CN111077619 A CN 111077619A
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- rodent
- steel wire
- optical cable
- plastic
- steel
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- 230000003287 optical effect Effects 0.000 title claims abstract description 48
- 241000283984 Rodentia Species 0.000 title claims abstract description 39
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 142
- 239000010959 steel Substances 0.000 claims abstract description 142
- 229920003023 plastic Polymers 0.000 claims abstract description 45
- 239000004033 plastic Substances 0.000 claims abstract description 45
- 238000004804 winding Methods 0.000 claims abstract description 28
- 239000013307 optical fiber Substances 0.000 claims abstract description 21
- 229920000642 polymer Polymers 0.000 claims abstract description 17
- 229920000114 Corrugated plastic Polymers 0.000 claims description 9
- 238000004040 coloring Methods 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 9
- 238000007765 extrusion coating Methods 0.000 claims description 9
- 238000004049 embossing Methods 0.000 claims description 7
- 239000000835 fiber Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- 239000000155 melt Substances 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000035929 gnawing Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000010618 wire wrap Methods 0.000 description 1
Images
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
-
- 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
- G02B6/4432—Protective covering with fibre reinforcements
-
- 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
- G02B6/4479—Manufacturing methods of optical cables
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Insulated Conductors (AREA)
Abstract
The invention provides a rodent-resistant optical cable and a manufacturing method thereof, relates to the technical field of rodent-resistant optical cable manufacturing, and structurally adds a fixing measure for preventing the lap joint of a steel tape armor layer of GYTS and GYTS04 type optical cables from being stripped by rodents. The rodent-resistant optical cable comprises a polymer jacket, an embossed plastic-coated steel belt, a winding and binding steel wire, a cable core, a bonding hole and a steel belt lap joint seam. The invention simplifies the protection measures for preventing rodents from biting and breaking the optical fibers when the optical cable is laid overhead, simplifies the installation, protection, maintenance and the like of the optical cable, and reduces the production and use cost.
Description
Technical Field
The invention relates to the technical field of rodent-resistant optical cable manufacturing, in particular to a rodent-resistant optical cable and a manufacturing method thereof.
Background
The construction of optical fiber communication networks requires a large number of optical cable products with various performances, the environment for installing field optical cable lines is varied, and special requirements are provided for the design and processing of the optical cables. At present, the condition that optical cable aerial laying passes through mountain region forest zone is more, in optical fiber cable installation use, lay the route tortuous, the optical cable is in the curved state, to steel band armoured optical cable commonly used like the GYTS type, GYTS04 type, the stress that the curved state formed causes the separation of steel band overlap joint inside and outside layer easily, the key is that the optical cable of erectting in mountain region forest zone receives gnawing of rodent to sting easily and damages, after outer PE sheath is gnawed off by rodent, the separation of armoured steel band overlap joint, the steel band overlap joint can be peeled off easily to the rodent, the optical cable core will lose the protection of steel band armouring and be bitten by rodent, optical fiber loss increases or is directly bitten off in the optical cable, cause communication incident and great loss.
Typical safeguards taken by the parties to the cable in the case of rodent attack are as follows: a mode of additionally arranging a protective sleeve is adopted in a key area on the optical cable line to prevent the rodent from attacking; the optical cable structure is additionally provided with double armor layers to prevent rodents from biting the cable core; biological repellent substances are added into the optical cable protective layer to prevent rodents from approaching; repelling rodents using electromagnetic/electro-acoustic techniques; the protection measures increase the construction and maintenance cost, or the technology is complex, or the safety risk is caused to the human body, or the product cost is high.
Disclosure of Invention
The invention aims to provide a rodent-resistant optical cable, wherein a winding and binding steel wire and a binding hole are added on the structure of GYTS and GYTS04 type optical cables, and an embossed plastic-coated steel strip is adopted. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a rodent-resistant optical cable which comprises a cable core, an embossed plastic-coated steel belt, a polymer jacket and a steel belt lap joint seam, wherein the embossed plastic-coated steel belt is arranged on the cable core; wherein:
optionally or preferably, the cable core comprises a reinforcing core, an optical fibre, a sleeve and a binder;
optionally or preferably, the sleeve is disposed around the core;
optionally or preferably, an embossed plastic-coated steel belt is arranged outside the binding yarns;
optionally or preferably, the outer layer of the embossed plastic-coated steel belt is wrapped with wrapped steel wires;
optionally or preferably, the outer layer of the steel belt lap joint seam of the embossed plastic-coated steel belt is provided with bonding holes;
alternatively or preferably, the polymeric outer jacket is wrapped around the outer layer of the embossed coated steel strip.
Optionally or preferably, the cable core further comprises a possible filler, which is also arranged around the core reinforcement.
Alternatively or preferably, the bonding holes can be circular or elliptical, and the diameter of the bonding holes is 0.8-1.2 mm.
Alternatively or preferably, the embossed coated steel strip is coated on one or both sides with a film that can be thermally bonded to the polymer jacket.
Alternatively or preferably, the wrapped steel wire may be a single strand of steel wire or a double strand of steel wire.
Optionally or preferably, the winding pitch of the single-strand steel wire is 20-60 mm; the winding and binding pitch of the double-strand steel wires is 40-120 mm; and the distance between the adjacent steel wires is 20-60 mm when the double-strand steel wires are wound and bundled.
Optionally or preferably, the outer diameter of the wrapped steel wire is 0.12-0.25 mm.
Alternatively or preferably, the wound steel wire can be a stainless steel wire, a steel wire with a phosphated surface, a steel wire with a surface coated with an anticorrosive resin, a galvanized nickel-plated copper-plated steel wire and the like.
Optionally or preferably, the embossed plastic-coated steel strip is rolled into a corrugated pattern, and the corrugation depth of the embossed plastic-coated steel strip is 0.4-0.6 mm.
Based on the technical scheme, the following technical effects can be generated:
the rodent-resistant optical cable provided by the embodiment of the invention is suitable for an optical cable route arranged in the field. According to the rodent-resistant optical cable, the embossed plastic-coated steel belt is arranged, the film capable of being thermally bonded with the polymer jacket is coated on the steel belt, the bonding holes are formed in the outer layer of the lap joint of the embossed plastic-coated steel belt, and the winding steel wire is wound and bundled on the outer layer of the embossed plastic-coated steel belt, so that the overall tightness and the stripping-resistant strength of the optical cable are improved. The invention has simple structure, prevents rodent from biting and breaking the optical fiber when being laid in the overhead, simplifies the installation, protection, maintenance and the like of the optical cable, and reduces the production and use cost.
The invention also provides a manufacturing method of the rodent-resistant optical cable, which is suitable for manufacturing the optical cable suitable for being laid in the field.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method of manufacturing a rodent resistant fiber optic cable, comprising: the method comprises the steps of optical fiber coloring, secondary sleeve, SZ stranding cabling, longitudinal hole-wrapped plastic-coated steel belt, steel wire winding and bundling, melt extrusion coating and finished optical cable production; the method comprises the following steps:
s1, coloring the optical fiber, and coloring the optical fiber;
s2 secondary sleeve, to cover the colored fiber;
s3 SZ stranding and cabling, and performing cabling treatment on the optical fiber subjected to sleeve processing by using a stranding and cabling machine;
s4 longitudinal wrapping of the plastic-coated steel belt with the hole pattern outside the cabled cable core;
s5, winding and binding the steel wire, and winding and binding the steel wire after longitudinally wrapping the plastic-coated steel belt with the holes;
s6 melt extrusion coating, after winding, extrusion coating is carried out by using an extrusion molding die;
s7 finishing the optical cable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic side view of an embodiment of the present invention;
FIG. 2 is another schematic structural diagram of an embodiment of the present invention;
FIG. 3 is a schematic view of an extrusion die used in the present invention;
in the figure: 1. a reinforcing core; 2. an optical fiber; 3. a sleeve; 4. yarn binding; 5. winding and binding the steel wire; 6. embossing the plastic-coated steel strip; 7. a polymer jacket; 8. a steel strip lap joint; 9. and (5) bonding holes.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The invention will be further described with reference to the accompanying drawings, but the scope of the invention is not limited to the following.
As shown in fig. 1-3:
the invention provides a rodent-resistant optical cable which comprises a cable core, an embossed plastic-coated steel belt 6, a polymer jacket 7 and a steel belt lap joint seam 8, wherein the corrugated plastic-coated steel belt is a plastic-coated steel belt; wherein:
the cable core comprises a reinforced core 1, an optical fiber 2, a sleeve 3 and a binding yarn 4;
the sleeve 3 is arranged around the reinforcing core 1;
the outside of the binding yarn 4 is provided with an embossing plastic-coated steel belt 6;
the outer layer of the corrugated plastic-coated steel belt 6 is wrapped with a wrapped steel wire 5;
the outer layer of the steel strip lap joint seam 8 of the embossing plastic-coated steel strip 6 is provided with a bonding hole 9;
the polymer outer sleeve 7 is wrapped on the outer layer of the embossed plastic-coated steel belt 7.
As an alternative embodiment, the bonding hole 9 may be circular or oval, and the diameter of the bonding hole 9 is 0.8-1.2 mm.
As an alternative embodiment, the embossed plastic-coated steel strip 6 is coated with a thin film on one side or both sides thereof, which can be thermally bonded to the polymer jacket 7, and the embossed plastic-coated steel strip 6 and the polymer jacket 7 form a stronger bonding force to enhance the external force resistance of the cable jacket.
Alternatively, the wrapped steel wire 5 may be a single-strand steel wire or a double-strand steel wire.
In an optional embodiment, the winding pitch of the single-strand steel wire is 20-60 mm; the winding and binding pitch of the double-strand steel wires is 40-120 mm; and the distance between the adjacent steel wires is 20-60 mm when the double-strand steel wires are wound and bundled.
In an optional embodiment, the outer diameter of the wound and rolled steel wire 5 is 0.12-0.25 mm.
In alternative embodiments, the wound steel wire 5 may be a stainless steel wire, a phosphated steel wire, a steel wire coated with an anticorrosive resin, a galvanized nickel-plated copper-plated steel wire, or the like.
In an alternative embodiment, the embossed plastic-coated steel strip 6 is rolled into a corrugated pattern; the corrugation depth of the corrugated plastic-coated steel strip 6 is 0.4-0.6 mm.
In an alternative embodiment, the winding pitch of the single-strand steel wire or the double-strand steel wire is preferably 46-54 mm; the preferred value of the distance between the adjacent steel wires is 46-54 mm; therefore, the anti-stripping strength of the steel strip lap joint seam 8 is ensured, and the production speed of the product and the rotating speed adaptability of the special steel wire winding and binding equipment are also considered.
As an alternative embodiment, the coiled and rolled steel wire is preferably made of stainless steel wire, and the outer diameter of the steel wire is preferably 0.2mm, so that the technical reliability of the total coiling and rolling process in the production process of the product can be ensured, and the stripping force at the steel belt lap joint 8 with the aid of the coiled and rolled steel wire can be ensured to be not less than 10N.
As an alternative embodiment, each of said bonding holes 9 has a certain pitch.
In an alternative embodiment, the outer layer of the steel belt lap seam 8 of the embossed plastic-coated steel belt 6 is provided with a bonding hole 9; fashioned steel band parcel cable core gets into 7 fuse-element extrusion molding moulds of polymer overcoat, 7 fuse-elements of polymer overcoat are injected into the pass under the effect of extrusion molding high pressure in, 7 fuse-elements of polymer overcoat bond with the steel band coating film on inlayer, the cooling is stereotyped the back, the polymer in 6 passes of the outer bonding hole of overlap joint bonds the inlayer and the skin of steel band overlap joint 8, form the rivet structure, the structural strength of steel band overlap joint 8 department has been strengthened, and, the polymer that is in the pass is difficult to gnaw and sting by rodent, when the optical cable is destroyed by rodent, steel band overlap joint 8 forms the further harm that rodent can be resisted to the rivet structure.
As an alternative embodiment, the corrugated plastic-coated steel strip 6 is spirally wound with the wound steel wire 5 immediately after the longitudinal wrapping and forming, the wound steel wire 5 and the corrugated plastic-coated steel strip immediately enter a melting extrusion molding die to coat the plastic outer protective layer, and the melting plastic has a certain pressure to completely coat the wound steel wire and the corrugated plastic-coated steel strip without gaps, so that the structure of the protective layer meets the requirements of product standards.
The invention also provides a manufacturing method of the rodent-resistant optical cable, which comprises the steps of coloring the optical fiber, sleeving a secondary sleeve, SZ stranding into a cable, longitudinally wrapping a hole-type plastic-coated steel belt, winding and bundling a steel wire, extruding and wrapping a melt and obtaining the finished optical cable; the method comprises the following steps:
s1, coloring the optical fiber, and coloring the optical fiber;
s2 secondary sleeve, to cover the colored fiber;
s3 SZ stranding and cabling, and performing cabling treatment on the optical fiber subjected to sleeve processing by using a stranding and cabling machine;
s4 longitudinal wrapping of the plastic-coated steel belt with the hole pattern outside the cabled cable core;
s5, winding and binding the steel wire, and winding and binding the steel wire after longitudinally wrapping the plastic-coated steel belt with the holes;
s6 melt extrusion coating, after winding, extrusion coating is carried out by using an extrusion molding die;
s7 finishing the optical cable.
As an alternative embodiment, the sizing length of the die needs to be properly reduced when the strip with the hole type embossing coating steel strip is subjected to longitudinal covering forming, and strip breakage or edge warping is prevented.
As an alternative embodiment, the melt extrusion coating die is a plastic extrusion processing extrusion die, and the melt plastic can be extruded into the hole type to form plastic bonding at the steel belt overlapping seam 8, so that the steel belt overlapping seam 8 is not easy to separate.
As an alternative embodiment, the apparatus for winding the wire is a coaxial wire-wrapping machine.
As an alternative embodiment, after the steel wire is wound on the embossed plastic-coated steel belt longitudinally wrapped with holes, the steel wire is extruded and wrapped by melt, the embossed plastic-coated steel belt 6 and the wound steel wire 5 are bonded with plastic into a whole, and the steel belt lap seam 8 has better anti-stripping performance under the combined action of plastic bonding and steel wire bundling.
Claims (10)
1. An anti-rodent optical cable, comprising: comprises a cable core, an embossed plastic-coated steel belt (6), a polymer jacket (7) and a steel belt lap joint seam (8); wherein:
the cable core comprises a reinforced core (1), optical fibers (2), a sleeve (3) and a binding yarn (4);
the sleeve (3) is arranged around the reinforcing core (1);
the outside of the binding yarn (4) is provided with an embossing plastic-coated steel belt (6);
the outer layer of the corrugated plastic-coated steel belt (6) is wrapped with a wrapped steel wire (5);
the outer layer of the steel strip lap joint seam (8) of the embossing plastic-coated steel strip (6) is provided with a bonding hole (9);
the polymer outer sleeve (7) is wrapped on the outer layer of the embossing plastic-coated steel belt (7).
2. The rodent-resistant fiber optic cable of claim 1, wherein: the cable core also comprises a possible filler, which is also arranged around the reinforcing core (1).
3. The rodent-resistant optical cable of claim 2 wherein: the bonding holes (9) can be circular or oval, and the diameter of the bonding holes (9) is 0.8-1.2 mm.
4. The rodent-resistant optical cable of claim 3 wherein: the embossed plastic-coated steel strip (6) is coated on one side or both sides with a film which can be thermally bonded to the polymer jacket (7).
5. The rodent-resistant optical cable of claim 4 wherein: the winding and binding steel wire (5) can be a single-strand steel wire or a double-strand steel wire.
6. The rodent-resistant optical cable of claim 5 wherein: the winding and binding pitch of the single-stranded steel wire is 20-60 mm; the winding and binding pitch of the double-strand steel wires is 40-120 mm; and the distance between the adjacent steel wires is 20-60 mm when the double-strand steel wires are wound and bundled.
7. The rodent-resistant optical cable of claim 6 wherein: the outer diameter of the winding and binding steel wire (5) is 0.12-0.25 mm.
8. The rodent-resistant optical cable of claim 7 wherein: the winding and binding steel wire (5) can be a stainless steel wire, a steel wire with a phosphated surface, a steel wire with a surface coated with anticorrosive resin, a zinc-plated nickel-plated copper-plated steel wire and the like.
9. The rodent-resistant fiber optic cable of claim 8, wherein: the corrugated plastic-coated steel strip (6) is rolled into a corrugated sample, and the corrugation depth of the corrugated plastic-coated steel strip (6) is 0.4-0.6 mm.
10. A method of manufacturing a rodent resistant fiber optic cable, comprising: the method comprises the steps of optical fiber coloring, secondary sleeve, SZ stranding cabling, longitudinal tape hole type plastic-coated steel tape, winding and bundling steel wires, melt extrusion coating and finished optical cable production; the method comprises the following steps:
s1, coloring the optical fiber, and coloring the optical fiber;
s2 secondary sleeve, to cover the colored fiber;
s3 SZ stranding and cabling, and performing cabling treatment on the optical fiber subjected to sleeve processing by using a stranding and cabling machine;
s4 longitudinal wrapping of the plastic-coated steel belt with the hole pattern outside the cabled cable core;
s5, winding and binding the steel wire, and winding and binding the steel wire after longitudinally wrapping the plastic-coated steel belt with the holes;
s6 melt extrusion coating, after winding, extrusion coating is carried out by using an extrusion molding die;
s7 finishing the optical cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010167084.3A CN111077619A (en) | 2020-03-11 | 2020-03-11 | Rodent-resistant optical cable and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010167084.3A CN111077619A (en) | 2020-03-11 | 2020-03-11 | Rodent-resistant optical cable and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN111077619A true CN111077619A (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010167084.3A Pending CN111077619A (en) | 2020-03-11 | 2020-03-11 | Rodent-resistant optical cable and manufacturing method thereof |
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| CN (1) | CN111077619A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113820809A (en) * | 2021-11-05 | 2021-12-21 | 江苏亨通光电股份有限公司 | Enhanced optical cable for preventing squirrels from biting and preparation process thereof |
| CN115291346A (en) * | 2022-08-26 | 2022-11-04 | 江苏亨通光电股份有限公司 | Temperature difference-resistant three-unit biological-bite-preventing optical cable and manufacturing process thereof |
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| US20040050584A1 (en) * | 2002-09-18 | 2004-03-18 | Hager Thomas P. | Low cost, high performance, rodent resistant, flexible reinforcement for communications cable |
| CN2713491Y (en) * | 2004-07-09 | 2005-07-27 | 成都康宁光缆有限公司 | Optical cable protective layer having rodent gnawing resistant structure |
| US20080247717A1 (en) * | 2007-01-02 | 2008-10-09 | Teldor Wires & Cables Ltd. | Highly flexible water-proof, rodent-proof cables particulary useful as optical communication cables |
| CN107656342A (en) * | 2017-08-25 | 2018-02-02 | 江苏中天科技股份有限公司 | A kind of Novel anti-mouse stings optical cable and preparation method thereof |
| CN108614340A (en) * | 2018-07-19 | 2018-10-02 | 北京亨通斯博通讯科技有限公司 | LA light armor is anti-biological anti-to denude cable |
| CN211577511U (en) * | 2020-03-11 | 2020-09-25 | 成都亨通光通信有限公司 | Rodent-resistant optical cable |
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2020
- 2020-03-11 CN CN202010167084.3A patent/CN111077619A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20040050584A1 (en) * | 2002-09-18 | 2004-03-18 | Hager Thomas P. | Low cost, high performance, rodent resistant, flexible reinforcement for communications cable |
| CN2713491Y (en) * | 2004-07-09 | 2005-07-27 | 成都康宁光缆有限公司 | Optical cable protective layer having rodent gnawing resistant structure |
| US20080247717A1 (en) * | 2007-01-02 | 2008-10-09 | Teldor Wires & Cables Ltd. | Highly flexible water-proof, rodent-proof cables particulary useful as optical communication cables |
| CN107656342A (en) * | 2017-08-25 | 2018-02-02 | 江苏中天科技股份有限公司 | A kind of Novel anti-mouse stings optical cable and preparation method thereof |
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| CN113820809A (en) * | 2021-11-05 | 2021-12-21 | 江苏亨通光电股份有限公司 | Enhanced optical cable for preventing squirrels from biting and preparation process thereof |
| CN115291346A (en) * | 2022-08-26 | 2022-11-04 | 江苏亨通光电股份有限公司 | Temperature difference-resistant three-unit biological-bite-preventing optical cable and manufacturing process thereof |
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