CN107688218A - A kind of microbeam tubular type anti-rat-bite optical cable and preparation method thereof - Google Patents
A kind of microbeam tubular type anti-rat-bite optical cable and preparation method thereof Download PDFInfo
- Publication number
- CN107688218A CN107688218A CN201710739429.6A CN201710739429A CN107688218A CN 107688218 A CN107688218 A CN 107688218A CN 201710739429 A CN201710739429 A CN 201710739429A CN 107688218 A CN107688218 A CN 107688218A
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- China
- Prior art keywords
- lszh
- microbeam
- optical cable
- inner sheath
- steel wire
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 56
- 239000010959 steel Substances 0.000 claims abstract description 56
- 239000002184 metal Substances 0.000 claims abstract description 32
- 229910052751 metal Inorganic materials 0.000 claims abstract description 32
- 239000013307 optical fiber Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003365 glass fiber Substances 0.000 claims abstract description 9
- 125000006850 spacer group Chemical group 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 29
- 239000000779 smoke Substances 0.000 claims description 16
- 239000004698 Polyethylene Substances 0.000 claims description 12
- 230000002708 enhancing effect Effects 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- 238000004040 coloring Methods 0.000 claims description 8
- 229910052736 halogen Inorganic materials 0.000 claims description 8
- 150000002367 halogens Chemical class 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- -1 polyethylene Polymers 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 239000000835 fiber Substances 0.000 claims description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 235000019353 potassium silicate Nutrition 0.000 claims description 4
- 238000007639 printing Methods 0.000 claims description 4
- 239000011241 protective layer Substances 0.000 claims description 4
- 238000004080 punching Methods 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- 238000005452 bending Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 6
- 241000283984 Rodentia Species 0.000 description 5
- 238000005336 cracking Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000002674 ointment Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 241000606750 Actinobacillus Species 0.000 description 1
- 206010002515 Animal bite Diseases 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification 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
-
- 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
Abstract
The invention discloses a kind of microbeam tubular type anti-rat-bite optical cable, including light unit, the light unit is wrapped with metal armor layers, inner sheath is set outside the metal armor layers, oversheath is set outside the inner sheath, between the oversheath and inner sheath, between inner sheath and metal armor layers, waterstop is equipped between metal armor layers and light unit, some steel wires of ring-like spacer arrangement are embedded with the inner sheath, the light unit includes LSZH sleeve pipes, more LSZH microbeam pipes are provided with the LSZH sleeve pipes, the glass fibre yarn that blocks water is provided between the LSZH microbeams pipe and LSZH sleeve pipes, water-blocking element is provided between some optical fiber in the LSZH microbeams pipe.For the optical cable on steel wire armoured architecture basics, steel wire takes spaced mode to carry out armouring, and steel wire is smaller than 2mm, reaches the performance that anti-rodent bites.Further, since steel wire is spaced, the bending property of optical cable is more preferable, lighter, easily laying.
Description
Technical field
The present invention relates to a kind of optical cable, specifically a kind of microbeam tubular type anti-rat-bite optical cable and preparation method thereof.
Background technology
Rodent-resistant cable strengthens the rodent-proof characteristic of optical cable by increasing metal armor layers.Steel-tape armouring optical cable and wire armoring
The metal armouring such as optical cable optical cable all has preferable protection against rodents effect, but after cable outer sheath is broken by the teeth by muroid, steel band, steel wire
Deng metal among air, easily it is oxidized and gets rusty, lose protection against rodents effect.
The content of the invention
Therefore, to solve the above problems, the present invention provides a kind of microbeam tubular type anti-rat-bite optical cable, own wt is relatively
Gently, there is certain bending property and cost is relatively low, lighter, easily laying, while also there is good protection against rodents to bite the function of stinging.
The technical solution adopted by the present invention is：A kind of microbeam tubular type anti-rat-bite optical cable, including light unit, outside the light unit
Metal armor layers are enclosed with, inner sheath is set outside the metal armor layers, oversheath, the oversheath are set outside the inner sheath
Between inner sheath, between inner sheath and metal armor layers, be equipped with waterstop between metal armor layers and light unit, it is described in
Some enhancing pole stocks of ring-like spacer arrangement are embedded with sheath, the light unit includes LSZH sleeve pipes, the LSZH sleeve pipes
It is interior to be provided with more LSZH microbeam pipes, the glass fibre yarn that blocks water, the LSZH microbeams are provided between the LSZH microbeams pipe and LSZH sleeve pipes
Water-blocking element is provided between some optical fiber in pipe.
The enhancing pole stock is the nonmetallic pole stocks of FRP or steel wire, and 2mm is smaller than between the steel wire.
The section of the enhancing pole stock is circular, rectangle or sector.
Tear rope is embedded between the light unit and metal armor layers.
The outside of the oversheath is connected with lifting rope by suspender belt.
The steel wire uses stainless steel wire or zinc-coated wire, and the metal armor layers use steel band.It can play effective anti-
Corrosive effect.
The preparation method of above-mentioned microbeam tubular type anti-rat-bite optical cable, comprises the following steps：
（1）Optical fiber coloring：It is using UV ultraviolet lights curing apparatus that coloring printing ink is thin by coating, ultraviolet light formation solid
Film, it is therefore an objective to increase intensity, it is easily distinguishable, be easy to continue；
（2）Secondary coated formation low smoke and zero halogen microbeam pipe：Extrusion low-smoke halogen-free material forms protective layer outside optical fiber, and it is slow to play machinery
Punching acts on, and protects coated fiber；
（3）Sheath process：Low smoke and zero halogen microbeam pipe, the glass fibre yarn that blocks water are twisted, and extrudes low-smoke halogen-free material and forms LSZH
Sleeve pipe, bag waterstop+steel band is indulged outside LSZH sleeve pipes, then coat one layer of waterstop, be spaced braided wires, extruded in polyethylene and protect
Set；Bag waterstop is indulged outside inner sheath, extrudes polyethylene outer sheath, messenger section（When having messenger wire）Extrude simultaneously.
The beneficial effects of the invention are as follows：Traditional compact arranged mode of steel wire armoring cable steel wire is different from, the optical cable exists
On steel wire armoured architecture basics, steel wire takes spaced mode to carry out armouring, and steel wire is smaller than 2mm, reaches anti-and nibbles
The performance that tooth animal bites.Because steel wire is spaced, quality is relatively light, possesses certain pliability and bending resistance,
It is lighter, easily laying, and relatively conventional steel wire armoring cable cost is relatively low, while also there is good protection against rodents to bite the work(stung
Energy.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment 1；
Fig. 2 is the structural representation of embodiment 2；
Fig. 3 is the structural representation of embodiment 3；
Fig. 4 is the structural representation of embodiment 4；
Wherein：1st, lifting rope, 2, suspender belt, 3, oversheath, 4, enhancing pole stock, 5, metal armor layers, 6, LSZH sleeve pipes, 7, block water glass
Yarn, 8, LSZH microbeam pipes, 9, optical fiber, 10, tear rope, 11, waterstop, 12, inner sheath.
Embodiment
In order to deepen the understanding of the present invention, the present invention is described in further detail below in conjunction with embodiment and accompanying drawing,
The embodiment is only used for explaining the present invention, does not form the restriction to protection scope of the present invention.
Embodiment 1
As shown in figure 1, a kind of microbeam tubular type anti-rat-bite optical cable, including light unit, light unit are wrapped with metal armor layers 5, gold
Belong to and inner sheath 12 is set outside armor 5（Midst density PE sheaths）, oversheath 3 is set outside inner sheath 12（High density PE sheaths）, no
Only there is preferably rigidity, toughness, and larger tensile strength, and modulus is big, and wearability is good, has preferable resistance to environment should
Power cracking performance.
Between oversheath 3 and inner sheath 12, between inner sheath 12 and metal armor layers 5, metal armor layers 5 and light unit it
Between be equipped with waterstop 11, there is skidproof effect, prevent steel wire from sliding, it is ensured that moistureproof and block-water effect.In addition, using without ointment
The mode that blocks water, can effectively block water, prevent metal rusting, extend optical cable service life, and with convenient, environmental protection etc. of constructing
Advantage.
Some enhancing pole stocks 4 of ring-like spacer arrangement are embedded with inner sheath 12 along its inwall（The nonmetallic pole stocks of FRP or
Steel wire, the present embodiment middle section are circular, can also be rectangle or sector）, 2mm is smaller than between adjacent wires 4.Cast aside
The design concept of traditional steel wire armoring cable, using the spaced mode armouring of steel wire, steel wire is smaller than 2mm, reached
The performance that anti-rodent bites.
Light unit includes LSZH sleeve pipes 6, is provided with more LSZH microbeams pipes 8 in LSZH sleeve pipes 6, LSZH microbeams pipe 8 and
It is provided with and blocks water glass fibre yarn 7 between LSZH sleeve pipes 6, water-blocking element is provided between some optical fiber 9 in LSZH microbeams pipe 8.Light unit
The tear rope 10 of stripping fiber optic cables is embedded between metal armor layers 5.
Wherein, steel wire 4 uses stainless steel wire or zinc-coated wire, and metal armor layers 5 use steel band.Effective anti-corrosion can be played
Lose effect.
The preparation method of above-mentioned microbeam tubular type anti-rat-bite optical cable, comprises the following steps：
（1）Optical fiber coloring：It is using UV ultraviolet lights curing apparatus that coloring printing ink is thin by coating, ultraviolet light formation solid
Film, it is therefore an objective to increase intensity, it is easily distinguishable, be easy to continue；
（2）Secondary coated formation low smoke and zero halogen microbeam pipe：Extrusion low-smoke halogen-free material forms protective layer outside optical fiber, and it is slow to play machinery
Punching acts on, and protects coated fiber；
（3）Sheath process：Low smoke and zero halogen microbeam pipe, the glass fibre yarn that blocks water are twisted, and extrudes low-smoke halogen-free material and forms LSZH
Sleeve pipe, bag waterstop+steel band is indulged outside LSZH sleeve pipes, then coat one layer of waterstop, be spaced braided wires, extruded in polyethylene and protect
Set；Bag waterstop is indulged outside inner sheath, extrudes polyethylene outer sheath.
Embodiment 2
As shown in Fig. 2 a kind of microbeam tubular type anti-rat-bite optical cable, including light unit, light unit are wrapped with metal armor layers 5, gold
Belong to and inner sheath 12 is set outside armor 5（Midst density PE sheaths）, oversheath 3 is set outside inner sheath 12（High density PE sheaths）, no
Only there is preferably rigidity, toughness, and larger tensile strength, and modulus is big, and wearability is good, has preferable resistance to environment should
Power cracking performance.
Between oversheath 3 and inner sheath 12, between inner sheath 12 and metal armor layers 5, metal armor layers 5 and light unit it
Between be equipped with waterstop 11, there is skidproof effect, prevent steel wire from sliding, it is ensured that moistureproof and block-water effect.In addition, using without ointment
The mode that blocks water, can effectively block water, prevent metal rusting, extend optical cable service life, and with convenient, environmental protection etc. of constructing
Advantage.
Some enhancing pole stocks 4 of ring-like spacer arrangement are embedded with inner sheath 12 along its inwall（The nonmetallic pole stocks of FRP or
Steel wire, the present embodiment middle section are circular）, 2mm is smaller than between adjacent wires 4.Traditional steel wire armoring cable is cast aside
Design concept, using the spaced mode armouring of steel wire, steel wire is smaller than 2mm, reaches the property that anti-rodent bites
Energy.
Light unit includes LSZH sleeve pipes 6, is provided with more LSZH microbeams pipes 8 in LSZH sleeve pipes 6, LSZH microbeams pipe 8 and
It is provided with and blocks water glass fibre yarn 7 between LSZH sleeve pipes 6, water-blocking element is provided between some optical fiber 9 in LSZH microbeams pipe 8.Light unit
The tear rope 10 of stripping fiber optic cables is embedded between metal armor layers 5.
The outside of oversheath 3 is connected with lifting rope 1 by suspender belt 2（Galvanized strand wires）.
Wherein, steel wire 4 uses stainless steel wire or zinc-coated wire, and metal armor layers 5 use steel band.Effective anticorrosion can be played
Effect.
Preparation method is the same as embodiment 1.
Embodiment 3
As shown in figure 3, the section for strengthening pole stock 4 as different from Example 2 is flattened rectangular, other structures are identical.
The preparation method of above-mentioned microbeam tubular type anti-rat-bite optical cable, comprises the following steps：
（1）Optical fiber coloring：It is using UV ultraviolet lights curing apparatus that coloring printing ink is thin by coating, ultraviolet light formation solid
Film, it is therefore an objective to increase intensity, it is easily distinguishable, be easy to continue；
（2）Secondary coated formation low smoke and zero halogen microbeam pipe：Extrusion low-smoke halogen-free material forms protective layer outside optical fiber, and it is slow to play machinery
Punching acts on, and protects coated fiber；
（3）Sheath process：Low smoke and zero halogen microbeam pipe, the glass fibre yarn that blocks water are twisted, and extrudes low-smoke halogen-free material and forms LSZH
Sleeve pipe, bag waterstop+steel band is indulged outside LSZH sleeve pipes, then coat one layer of waterstop, be spaced braided wires, extruded in polyethylene and protect
Set；Bag waterstop is indulged outside inner sheath, extrudes polyethylene outer sheath, messenger section extrudes simultaneously.
Embodiment 4
As shown in figure 4, the section for strengthening pole stock 4 as different from Example 2 is fan-shaped, other structures are identical.
Preparation method is the same as embodiment 3.
Above-mentioned production technology is compared with the steel wire armoring cable of routine, main difference is that steel wire armoured production work
Skill, it is mainly reflected in the following aspects：1st, conventional production stage is that the vertical bag of waterstop+steel band is directly entered twisted mould afterwards
Sheath is extruded, and this mode of production is to need to indulge one layer of waterstop of bag again after the vertical bag of waterstop+steel band, in order that steel wire interval
Arrangement shaping is more preferable.2nd, steel wire despooling tension：In order to ensure properties of optical fiber cable, it is necessary to strictly control the unwrapping wire of steel wire in production process
Tension force, original actinobacillus device is transformed, make the laying tension in production process stable within the specific limits.3rd, it is twisted mould
Tool：In order to coordinate steel wire pay-off device, mould is twisted using special steel wire, steel wire pay-off device can be coordinated to carry out unwrapping wire,
The interval shaping of and can control steel wire.
The optical cable of the present invention does not use traditional steel wire all standing armouring mode, but employs enhancing pole stock（Such as steel
Silk）Spaced mode, and it is smaller than 2mm between steel wire.Use steel wire spaced arrangement armouring advantage have with
Lower 3 points：1）Because steel wire uses spaced mode, quality is relatively light, and easily laying, lateral pressure resistant ability are strong, and optical cable possesses
Certain pliability and bending resistance, and relatively conventional steel wire armoring cable cost is relatively low；2）Can be as needed, flexibly
Various infrastructure products are designed on ground, to meet requirement, product can be made to have good globality；3）Spaced steel
Silk, can effectively prevent biting for muroid to sting, can reach the effect of mouse bite preventing.In addition, self-bearing type laying tensile strength is high, anti-extraneous ring
Border ability is strong, and optical cable pliability and bending resistance are strong, and can meet the performance of mouse bite preventing.
The above described is only a preferred embodiment of the present invention, it is not the limit for making any other form to the present invention
System, and any modification made according to technical spirit of the invention or equivalent variations, still fall within present invention model claimed
Enclose.
Claims (7)
1. a kind of microbeam tubular type anti-rat-bite optical cable, it is characterised in that including light unit, the light unit is wrapped with metal armouring
Layer, the metal armor layers set inner sheath, oversheath are set outside the inner sheath outside, between the oversheath and inner sheath,
Between inner sheath and metal armor layers, waterstop is equipped between metal armor layers and light unit, is embedded with the inner sheath
Some enhancing pole stocks of ring-like spacer arrangement, the light unit include LSZH sleeve pipes, more are provided with the LSZH sleeve pipes
LSZH microbeam pipes, it is provided with and blocks water glass fibre yarn between the LSZH microbeams pipe and LSZH sleeve pipes, it is some in the LSZH microbeams pipe
Water-blocking element is provided between optical fiber.
2. a kind of microbeam tubular type anti-rat-bite optical cable according to claim 1, it is characterised in that the enhancing pole stock is FRP
Nonmetallic pole stock or steel wire, 2mm is smaller than between the steel wire.
3. a kind of microbeam tubular type anti-rat-bite optical cable according to claim 1 or 2, it is characterised in that the enhancing pole stock
Section is circular, rectangle or sector.
4. a kind of microbeam tubular type anti-rat-bite optical cable according to claim 1, it is characterised in that the light unit and metal armour
Tear rope is embedded between dress layer.
5. a kind of microbeam tubular type anti-rat-bite optical cable according to claim 1, it is characterised in that the outside of the oversheath leads to
Cross suspender belt and be connected with lifting rope.
6. a kind of microbeam tubular type anti-rat-bite optical cable according to claim 1, it is characterised in that the metal armor layers use
Stainless steel wire or zinc-coated wire.
7. a kind of preparation method of microbeam tubular type anti-rat-bite optical cable as claimed in claim 1, it is characterised in that including following step
Suddenly：
（1）Optical fiber coloring：It is using UV ultraviolet lights curing apparatus that coloring printing ink is thin by coating, ultraviolet light formation solid
Film；
（2）Secondary coated formation low smoke and zero halogen microbeam pipe：Extrusion low-smoke halogen-free material forms protective layer outside optical fiber, and it is slow to play machinery
Punching acts on, and protects coated fiber；
（3）Sheath process：Low smoke and zero halogen microbeam pipe, the glass fibre yarn that blocks water are twisted, and extrudes low-smoke halogen-free material and forms LSZH
Sleeve pipe, vertical bag waterstop adds steel band outside LSZH sleeve pipes, then coats one layer of waterstop, is spaced braided wires, extrudes in polyethylene
Sheath；Bag waterstop is indulged outside inner sheath, extrudes polyethylene outer sheath, messenger section extrudes simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710739429.6A CN107688218A (en) | 2017-08-25 | 2017-08-25 | A kind of microbeam tubular type anti-rat-bite optical cable and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710739429.6A CN107688218A (en) | 2017-08-25 | 2017-08-25 | A kind of microbeam tubular type anti-rat-bite optical cable and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107688218A true CN107688218A (en) | 2018-02-13 |
Family
ID=61155078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710739429.6A Pending CN107688218A (en) | 2017-08-25 | 2017-08-25 | A kind of microbeam tubular type anti-rat-bite optical cable and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107688218A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111796373A (en) * | 2020-07-20 | 2020-10-20 | 江苏中天科技股份有限公司 | Optical cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6788858B1 (en) * | 2001-11-19 | 2004-09-07 | Lg Cable Ltd. | Bundle tube type optical cable |
| CN204178022U (en) * | 2014-10-15 | 2015-02-25 | 广东亨通光电科技有限公司 | Environment-friendly type all dielectric Anti-mouse ant-proof optical cable |
| CN106019509A (en) * | 2016-07-18 | 2016-10-12 | 江苏中天科技股份有限公司 | Novel nonmetallic armored enhanced self-supporting optical cable |
| CN205750015U (en) * | 2016-05-04 | 2016-11-30 | 通鼎互联信息股份有限公司 | A kind of lightweight rodent-resistant cable |
| CN207198414U (en) * | 2017-08-25 | 2018-04-06 | 江苏中天科技股份有限公司 | A kind of microbeam tubular type anti-rat-bite optical cable |
-
2017
- 2017-08-25 CN CN201710739429.6A patent/CN107688218A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6788858B1 (en) * | 2001-11-19 | 2004-09-07 | Lg Cable Ltd. | Bundle tube type optical cable |
| CN204178022U (en) * | 2014-10-15 | 2015-02-25 | 广东亨通光电科技有限公司 | Environment-friendly type all dielectric Anti-mouse ant-proof optical cable |
| CN205750015U (en) * | 2016-05-04 | 2016-11-30 | 通鼎互联信息股份有限公司 | A kind of lightweight rodent-resistant cable |
| CN106019509A (en) * | 2016-07-18 | 2016-10-12 | 江苏中天科技股份有限公司 | Novel nonmetallic armored enhanced self-supporting optical cable |
| CN207198414U (en) * | 2017-08-25 | 2018-04-06 | 江苏中天科技股份有限公司 | A kind of microbeam tubular type anti-rat-bite optical cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111796373A (en) * | 2020-07-20 | 2020-10-20 | 江苏中天科技股份有限公司 | Optical cable |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180213 |
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