CN101887780B - Multigroup lightning protection optical cable - Google Patents
Multigroup lightning protection optical cable Download PDFInfo
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- CN101887780B CN101887780B CN 200910140717 CN200910140717A CN101887780B CN 101887780 B CN101887780 B CN 101887780B CN 200910140717 CN200910140717 CN 200910140717 CN 200910140717 A CN200910140717 A CN 200910140717A CN 101887780 B CN101887780 B CN 101887780B
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- cable
- lightning
- optical cable
- coat
- ground plane
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- 230000003287 optical effect Effects 0.000 title claims abstract description 35
- 238000004891 communication Methods 0.000 claims abstract description 14
- 239000004020 conductor Substances 0.000 claims description 33
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 28
- 239000000835 fiber Substances 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 16
- 230000002787 reinforcement Effects 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 11
- 230000004888 barrier function Effects 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 239000011241 protective layer Substances 0.000 claims description 8
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 7
- 229920000098 polyolefin Polymers 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000010410 layer Substances 0.000 abstract description 6
- 239000011247 coating layer Substances 0.000 abstract 2
- 230000005672 electromagnetic field Effects 0.000 description 8
- 239000000779 smoke Substances 0.000 description 7
- 230000007613 environmental effect Effects 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 239000011490 mineral wool Substances 0.000 description 3
- 238000012856 packing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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- Insulated Conductors (AREA)
Abstract
The invention discloses a multigroup lightning protection optical cable which comprises cables and a coating layer covering the cables, wherein the cables are made of multigroup cable cores covered by an inside liner; and the coating layer comprises a shielding layer for shielding the cables, an outer jacket covering the shielding layer and a grounding layer arranged between the inside liner and the shielding layer. The multigroup lightning protection optical cable can prevent lightning from damaging communication equipment, and can effectively shield the interference of an electric magnetic field generated by the cables on other communication cable signals and the interference of an external magnetic field on the cables.
Description
Technical field
The present invention relates to the electric wire technology, particularly a kind of can lightning protection and the multigroup lightning protection optical cable of transmitting optical signal and electric power.
Background technology
Addressing mostly is spaciousness, highland or mountain area based on base station construction, with a varied topography and work under bad environment, the equipment of base station easily suffers the infringement of thunder and lightning weather, the cable of base station outdoor is especially low at the northern area winter temperature and directly be subject to ultraviolet ray irradiation, easily aging and damaged, thus base station work affected.And as the cable that communication base station uses, certain shielding anti-interference should be arranged, the electromagnetic field of guaranteeing itself does not cause other signals and disturbs and not by the interference of external electromagnetic field to cable core.
In addition, because cable might be struck by lightning, in case the thunderbolt event occurs, will cause the heavy losses of communications facility.
In addition, communication base station need to use respectively cable and optical cable to transmit electric power and signal of communication at present, not only lays trouble, and has increased the expense of communication base station use cable.
Summary of the invention
The purpose of this invention is to provide a kind of can lightning protection and the multigroup lightning protection optical cable of transmission light, the signal of telecommunication.
Multigroup lightning protection optical cable of the present invention can also satisfy the required special climate requirement of communication base station of working out of doors.
According to a first aspect of the invention, above-mentioned multigroup lightning protection optical cable comprises:
Coat by inner covering the cable that many group cable cores consist of; And
The coating of the described cable of coating;
Wherein, described coating comprises:
Shield the screen of described cable;
Coat the oversheath of described screen; With
Be arranged on the ground plane between described inner covering and described screen.
Wherein, described ground plane is configured to: by the oblique wrapped described inner covering of bundle strand copper wire of stranded copper wire bundle strand, its lay of lapping is 18～28 times of described cable external diameter.
According to a second aspect of the invention, above-mentioned multigroup lightning protection optical cable comprises:
The outer cable core that covers inner sheath of many groups;
Coat described many group cable cores to form the inner covering of cable;
Be used for shielding the screen of described cable; With
Coat the oversheath of described screen;
Characterized by further comprising:
Be arranged on the ground connection outer conductor between described inner covering and described screen.
Wherein, described ground connection outer conductor is the bundle strand copper wire of stranded copper wire bundle strand, and oblique wrapped described inner covering, and its lay of lapping is 18～28 times of described cable external diameter.
In aspect above-mentioned first and second, described cable core comprises:
At least two thoroughly do away with the edge core;
At least one fiber unit; And
Coat the inner sheath of described insulated wire cores and fiber unit.
Wherein said fiber unit comprises: tight tube fiber; Reinforcement; Strengthen steel core; And the protective layer that coats described tight tube fiber, reinforcement and described reinforcement steel core; Described tight tube fiber and described reinforcement are stranded on the described reinforcement steel core that is positioned at the center.
The conductor of wherein said insulated wire cores is the bundle strand copper wire of stranded copper wire bundle strand.
Wherein said screen adopts the wrapped described outer conductor of copper strips to form, and wrapped Duplication is more than 25%.
Wherein said insulated wire cores comprises conductor and coats the insulating barrier of described conductor, described insulating barrier employing polyolefine material.
Wherein said inner sheath, inner covering and oversheath all adopt the TPO material.
Described reinforcement, protective layer are high density PE, and wherein protective layer inside also is surrounded with polyester belt.
Ground plane of the present invention or ground connection outer conductor have good conductivity, can effectively avoid thunder and lightning to the infringement of cable.
Screen of the present invention can make cable obtain electromagnetism antijamming capability preferably.
The insulating barrier of cable core of the present invention, inner sheath adopt low-smoke halogen-free polyolefin class material, have flame-proof environmental protection.
Oversheath of the present invention adopts cold-resistant low-smoke halogen-free polyolefin class material, can guarantee that cable works under low temperature environment.
The wrapped cable of the polyester material with environmental-protecting performance is all adopted in the inboard of the oversheath of the inner sheath of cable core of the present invention and pass cable.
In addition, the present invention also fills the packing material such as PP fiber or mineral wool rope with feature of environmental protection in cable core and cable.
Compared with prior art, the outer conductor that plays the earth connection effect of the present invention is rearranged by the oblique bag of stranded copper wire between inner sheath and screen, has effectively conducted instantaneous high pressure, avoids thunder and lightning that communication equipment is caused damage.And described outer conductor is with the copper strip shielding layer outward, the effectively interference of the electromagnetic field of shielded type cable generation to other telecommunication cable signals, and external electromagnetic field is to the interference of cable.Having added in cable inside has the fiber unit of strengthening steel core, has improved the ability of the anti-mechanical stretch of optical cable part, and and need not separately that erecting optical cables solves the needs of base station, alleviate laid down cost.Described oversheath adopts cold-resistant low-smoke halogen-free polyolefin class material, and its low smoke and zero halogen is environmental, and uvioresistant is also cold-resistant, and therefore a kind of lightning-proof optical cable of the present invention can satisfy communication base station in the abominable workplace normal operation of environment, and its adaptive capacity to environment is strong, many performances, low cost.
Below in conjunction with accompanying drawing, details of the present invention is specifically described.
Description of drawings
Fig. 1 is the schematic diagram that shows lightning-proof optical cable the first embodiment of the present invention; And
Fig. 2 is the schematic diagram that shows lightning-proof optical cable the second embodiment of the present invention.
Drawing reference numeral explanation: 1-light unit; The 11-tight tube fiber; The 12-reinforcement; 13-strengthens steel core; The 14-protective layer; The 2-insulated wire cores; The 21-conductor; The 22-insulating barrier; 31-cable filler; 32-cable core filler; The 4-inner covering; 5-ground plane or outer conductor; The 6-screen; The 7-inner sheath; The 8-oversheath.
Embodiment
Lightning-proof optical cable of the present invention is a kind of optical cable of lightning protection, in other words conj.or perhaps a kind of lightning protection and the optical cable of transmitting optical signal and the signal of telecommunication simultaneously.
Fig. 1 has shown lightning-proof optical cable the first embodiment of the present invention, and Fig. 2 has shown lightning-proof optical cable the second embodiment of the present invention.In the first embodiment, lightning-proof optical cable has two groups of cable cores 9.In a second embodiment, lightning-proof optical cable has three groups of cable cores 9.
Put it briefly, lightning-proof optical cable of the present invention comprises: the cable that is consisted of by inner covering 4 a plurality of cable cores 9 of coating and the coating of coating cable, and wherein said coating comprises:
Shield the screen 6 of described cable;
Coat the oversheath 8 of described screen 6; And
Be arranged on the ground plane 5 that is used for lightning protection between described inner covering 4 and described screen 6.
In specific embodiment illustrated in figures 1 and 2, multigroup lightning protection optical cable of the present invention comprises:
Cover the cable core 9 of inner sheath 7 outward, cable core 9 of the present invention can have many groups, such as two groups or shown in Figure 3 three groups shown in Figure 1, perhaps more groups;
Coat many group cable cores 9 to form the inner covering 4 of cable, inner covering 4 only is used to form cable at this;
Be used for shielding the screen 6 of described cable, this screen 6 not only can shield electromagnetic field that cable core 9 produces itself in order to avoid to the interference of other telecommunication cable signal, but also can shield external electromagnetic field to the interference of cable core 9; With
Coat the oversheath 8 of described screen 6, oversheath 8 adopts the TPO material with low smoke and zero halogen characteristic, not only is conducive to environmental protection, and cold-resistant and uvioresistant.
An important feature of the present invention is also to comprise: be arranged on the ground connection outer conductor 5 between described inner covering 4 and described screen 6.
In theory, ground connection outer conductor 5 is ground connection in any place, but in actual conditions, ground connection outer conductor 5 has been preferably in people or unmanned machine room ground connection.Outer conductor 5 can effectively conduct instantaneous high pressure, thereby can avoid thunder and lightning that communication equipment is caused damage.
Ground connection outer conductor 5 can be the bundle strand copper wire of stranded copper wire bundle strand, and oblique wrapped described inner covering 4, and for example the left-hand wrapping lining-layer 4, tiltedly wrap in order to form stranded copper wire on inner covering 4.The lay of lapping of ground connection outer conductor 5 is 18～28 times of described cable external diameter preferably.
Wherein cable core 9 comprises: at least two thoroughly do away with edge core 2, and in Fig. 1 and Fig. 2, insulated wire cores 2 is two; At least one fiber unit 1, in Fig. 1 and Fig. 2, described fiber unit 1 only has one; And the inner sheath 7 that coats described insulated wire cores 2 and fiber unit 1.
Characteristics of the present invention are, fiber unit 1 is set in cable core 9, need not so separately that erecting optical cables solves the communication needs of base station, and can alleviate laid down cost.
Adding reinforcement steel core 13 in fiber unit 1 is characteristics of the present invention, and it can improve the ability of the anti-mechanical stretch of optical cable part.
The conductor 21 of insulated wire cores of the present invention can be also the bundle strand copper wire by stranded copper wire bundle strand.For the ease of making, the conductor 2 of insulated wire cores is preferably identical with the wire diameter of ground connection outer conductor 5.
On the other hand, due to the screen 6 of being made by copper strips direct wrapped institute outer conductor 5, make screen 6 and outer conductor 5 connect into earthing conductor, thereby strengthened the ability that instantaneous thunder and lightning high pressure is conducted in the present invention.That is to say, owing to utilizing screen 6 and outer conductor 5 these two earthing conductors to draw thunder, greatly reduced to draw the resistivity of thunder earthing conductor, thereby improved lightning protection effect.
In addition, inner sheath 7 of the present invention, inner covering 4 and oversheath 8 all can adopt the TPO material, have flame-proof environmental protection.。
Described reinforcement 12, protective layer 14 are high density PE, and protective layer 14 inside also are surrounded with polyester belt.
The wrapped cable of polyester material with environmental-protecting performance is adopted in inboard at inner covering 4 and oversheath 8.
In order to strengthen the intensity of cable, fill the packing material 31 such as PP fiber or mineral wool rope in cable.
Equally, in order to strengthen the intensity of cable core 9, fill the packing material 32 such as PP fiber or mineral wool rope in cable core 9.
Although above the present invention is had been described in detail, the invention is not restricted to this, those skilled in the art of the present technique can carry out various modifications according to principle of the present invention.Therefore, all modifications of doing according to the principle of the invention all should be understood to fall into protection scope of the present invention.
Claims (7)
1. multigroup lightning protection optical cable comprises:
Coat by inner covering (4) cable that many group cable cores (9) consist of; And
The coating of the described cable of coating;
Wherein, described coating comprises:
Shield the ground shield (6) of described cable;
Coat the oversheath (8) of described ground shield (6); With
Be arranged on and be used for the ground plane (5) of lightning protection between described inner covering (4) and described ground shield (6);
Wherein, described ground plane (5) is configured to: by the bundle strand oblique wrapped described inner covering of copper wire (4) of stranded copper wire bundle strand, its lay of lapping is 18～28 times of described cable external diameter;
Wherein, described ground shield (6) adopts the wrapped described ground plane of copper strips (5), and wrapped Duplication is more than 25%;
Wherein, ground plane (5) causes damage to communication equipment to avoid thunder and lightning people or unmanned machine room ground connection are arranged.
2. multigroup lightning protection optical cable comprises:
Many groups comprise the cable core (9) of the outer inner sheath (7) that covers;
Coat described many group cable cores (9) to form the inner covering (4) of cable;
Be used for shielding the ground shield (6) of described cable; With
Coat the oversheath (8) of described ground shield (6);
Also comprise:
Be arranged on and be used for the ground plane (5) of lightning protection between described inner covering (4) and described ground shield (6);
Wherein, described ground plane (5) is the bundle strand copper wire of stranded copper wire bundle strand, and oblique wrapped described inner covering (4), and its lay of lapping is 18～28 times of described cable external diameter;
Wherein, described ground shield (6) adopts the wrapped described ground plane of copper strips (5), and wrapped Duplication is more than 25%;
Wherein, ground plane (5) causes damage to communication equipment to avoid thunder and lightning people or unmanned machine room ground connection are arranged.
3. lightning-proof optical cable according to claim 1 and 2, wherein said cable core (9) comprising:
At least two thoroughly do away with edge core (2); And
At least one fiber unit (1); And
Coat the inner sheath (7) of described insulated wire cores (2) and fiber unit (1).
4. lightning-proof optical cable according to claim 3, wherein said fiber unit (1) comprising:
Tight tube fiber (11);
Reinforcement (12);
Strengthen steel core (13); And
Coat the protective layer (14) of described tight tube fiber (11), reinforcement (12) and described reinforcement steel core (13);
Wherein said tight tube fiber (11) and described reinforcement (12) are stranded on the described reinforcement steel core (13) that is positioned at the center.
5. lightning-proof optical cable according to claim 4, wherein said insulated wire cores (2) comprise conductor (21) and coat the insulating barrier (22) of described conductor (21), and described insulating barrier (22) adopts polyolefine material.
6. lightning-proof optical cable according to claim 5, the conductor of wherein said insulated wire cores (21) are the bundle strand copper wires of stranded copper wire bundle strand.
7. lightning-proof optical cable according to claim 6, wherein said inner sheath (7), inner covering (4) and oversheath (8) all adopt the TPO material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910140717 CN101887780B (en) | 2009-05-11 | 2009-05-11 | Multigroup lightning protection optical cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910140717 CN101887780B (en) | 2009-05-11 | 2009-05-11 | Multigroup lightning protection optical cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101887780A CN101887780A (en) | 2010-11-17 |
| CN101887780B true CN101887780B (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910140717 Active CN101887780B (en) | 2009-05-11 | 2009-05-11 | Multigroup lightning protection optical cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101887780B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102093738B (en) * | 2010-12-08 | 2013-01-02 | 兴乐集团宁夏电缆有限公司 | High-performance carbon fiber reinforced coating material and optical cable adopting same |
| CN103794288B (en) * | 2014-01-16 | 2016-06-01 | 安徽国华电缆集团有限公司 | A kind of lightning-proof power cable |
| CN104900316A (en) * | 2015-06-02 | 2015-09-09 | 苏州携旅网络技术有限公司 | Lightning protection cable for communication vehicle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2127500Y (en) * | 1992-07-01 | 1993-02-24 | 天津电子线缆公司 | Fan type strength optical cable |
| CN200986832Y (en) * | 2006-09-20 | 2007-12-05 | 青岛汉缆集团有限公司 | Photoelectric combination type subsea cable |
| CN201174272Y (en) * | 2008-07-31 | 2008-12-31 | 上海快鹿电线电缆有限公司 | Soft conductor flame-retardant protective sleeve shielded power cable |
| CN201408605Y (en) * | 2009-05-11 | 2010-02-17 | 中利科技集团股份有限公司 | Multi-group lightning protection optical cable |
-
2009
- 2009-05-11 CN CN 200910140717 patent/CN101887780B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2127500Y (en) * | 1992-07-01 | 1993-02-24 | 天津电子线缆公司 | Fan type strength optical cable |
| CN200986832Y (en) * | 2006-09-20 | 2007-12-05 | 青岛汉缆集团有限公司 | Photoelectric combination type subsea cable |
| CN201174272Y (en) * | 2008-07-31 | 2008-12-31 | 上海快鹿电线电缆有限公司 | Soft conductor flame-retardant protective sleeve shielded power cable |
| CN201408605Y (en) * | 2009-05-11 | 2010-02-17 | 中利科技集团股份有限公司 | Multi-group lightning protection optical cable |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2002-75077A 2002.03.15 |
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| Publication number | Publication date |
|---|---|
| CN101887780A (en) | 2010-11-17 |
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Owner name: JIANGSU CHANGFEI ZHONGLI OPTICAL FIBRE + OPTICAL C Free format text: FORMER OWNER: ZHONGLI SCIENCE + TECHNOLOGY GROUP CO., LTD. Effective date: 20150407 |
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Effective date of registration: 20150407 Address after: 215542 Changshou City, Guangdong Province, Chang Kun Industrial Park, Suzhou Road, No. 1 li Patentee after: YANGTZE ZHONGLI OPTICAL FIBRE AND CABLE (JIANGSU) Co.,Ltd. Address before: 215542 Changshou City Southeast Economic Development Zone, Jiangsu Patentee before: ZHONGLI SCI-TECH GROUP Co.,Ltd. |
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Effective date of registration: 20170414 Address after: 215542 Changshu Southeast Economic Development Zone, Jiangsu Patentee after: JIANGSU ZHONGLI GROUP Co.,Ltd. Address before: 215542 Changshou City, Guangdong Province, Chang Kun Industrial Park, Suzhou Road, No. 1 li Patentee before: YANGTZE ZHONGLI OPTICAL FIBRE AND CABLE (JIANGSU) Co.,Ltd. |
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Effective date of registration: 20180205 Address after: 215542 Changshu Southeast Economic Development Zone, Jiangsu Co-patentee after: JIANGSU FAVOUR AUTOMOTIVE NEW STUFF SCI-TECH Co.,Ltd. Patentee after: JIANGSU ZHONGLI GROUP Co.,Ltd. Co-patentee after: YANGTZE ZHONGLI OPTICAL FIBRE AND CABLE (JIANGSU) Co.,Ltd. Co-patentee after: CHANGSHU ZHONGLIAN PHOTOELECTRICITY NEW STUFF Co.,Ltd. Co-patentee after: QINGHAI ZHONGLI OPTICAL FIBER TECHNOLOGY Co.,Ltd. Address before: 215542 Changshu Southeast Economic Development Zone, Jiangsu Patentee before: JIANGSU ZHONGLI GROUP Co.,Ltd. |
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Effective date of registration: 20220129 Address after: 215500 Changshu Southeast Economic Development Zone, Suzhou City, Jiangsu Province Patentee after: JIANGSU ZHONGLI GROUP Co.,Ltd. Patentee after: YANGTZE ZHONGLI OPTICAL FIBRE AND CABLE (JIANGSU) Co.,Ltd. Patentee after: CHANGSHU ZHONGLIAN PHOTOELECTRICITY NEW STUFF Co.,Ltd. Patentee after: QINGHAI ZHONGLI OPTICAL FIBER TECHNOLOGY Co.,Ltd. Address before: 215542 Southeast Economic Development Zone, Jiangsu, Changshu Patentee before: JIANGSU ZHONGLI GROUP Co.,Ltd. Patentee before: JIANGSU FAVOUR AUTOMOTIVE NEW STUFF SCI-TECH Co.,Ltd. Patentee before: YANGTZE ZHONGLI OPTICAL FIBRE AND CABLE (JIANGSU) Co.,Ltd. Patentee before: CHANGSHU ZHONGLIAN PHOTOELECTRICITY NEW STUFF Co.,Ltd. Patentee before: QINGHAI ZHONGLI OPTICAL FIBER TECHNOLOGY Co.,Ltd. |
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Address after: 215500 Changshu Southeast Economic Development Zone, Suzhou City, Jiangsu Province Patentee after: JIANGSU ZHONGLI GROUP Co.,Ltd. Patentee after: Changfei photoelectric cable (Suzhou) Co.,Ltd. Patentee after: CHANGSHU ZHONGLIAN PHOTOELECTRICITY NEW STUFF Co.,Ltd. Patentee after: QINGHAI ZHONGLI OPTICAL FIBER TECHNOLOGY Co.,Ltd. Address before: 215500 Changshu Southeast Economic Development Zone, Suzhou City, Jiangsu Province Patentee before: JIANGSU ZHONGLI GROUP Co.,Ltd. Patentee before: YANGTZE ZHONGLI OPTICAL FIBRE AND CABLE (JIANGSU) Co.,Ltd. Patentee before: CHANGSHU ZHONGLIAN PHOTOELECTRICITY NEW STUFF Co.,Ltd. Patentee before: QINGHAI ZHONGLI OPTICAL FIBER TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20220325 Address after: 215500 Changshu Southeast Economic Development Zone, Suzhou City, Jiangsu Province Patentee after: JIANGSU ZHONGLI GROUP Co.,Ltd. Patentee after: CHANGSHU ZHONGLIAN PHOTOELECTRICITY NEW STUFF Co.,Ltd. Patentee after: QINGHAI ZHONGLI OPTICAL FIBER TECHNOLOGY Co.,Ltd. Address before: 215500 Changshu Southeast Economic Development Zone, Suzhou City, Jiangsu Province Patentee before: JIANGSU ZHONGLI GROUP Co.,Ltd. Patentee before: Changfei photoelectric cable (Suzhou) Co.,Ltd. Patentee before: CHANGSHU ZHONGLIAN PHOTOELECTRICITY NEW STUFF Co.,Ltd. Patentee before: QINGHAI ZHONGLI OPTICAL FIBER TECHNOLOGY Co.,Ltd. |