CN110610774B - Dynamic submarine cable assembly for deep water - Google Patents
Dynamic submarine cable assembly for deep water Download PDFInfo
- Publication number
- CN110610774B CN110610774B CN201910881330.9A CN201910881330A CN110610774B CN 110610774 B CN110610774 B CN 110610774B CN 201910881330 A CN201910881330 A CN 201910881330A CN 110610774 B CN110610774 B CN 110610774B
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- Prior art keywords
- sheath
- sealing sleeve
- steel wire
- oil
- dynamic
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 44
- 239000010959 steel Substances 0.000 claims abstract description 44
- 230000000903 blocking effect Effects 0.000 claims abstract description 17
- 239000011248 coating agent Substances 0.000 claims abstract 6
- 238000000576 coating method Methods 0.000 claims abstract 6
- 238000007789 sealing Methods 0.000 claims description 50
- 239000013535 sea water Substances 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims description 3
- 230000001502 supplementing effect Effects 0.000 claims description 3
- 238000005253 cladding Methods 0.000 description 8
- 238000001125 extrusion Methods 0.000 description 3
- 230000002706 hydrostatic effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 240000005572 Syzygium cordatum Species 0.000 description 1
- 235000006650 Syzygium cordatum Nutrition 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
-
- 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
- H01B7/14—Submarine cables
-
- 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
- H01B7/1805—Protections not provided for in groups H01B7/182 - H01B7/26
-
- 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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
-
- 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
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention discloses a dynamic submarine cable assembly for deep water, which comprises a dynamic submarine cable body, wherein the dynamic submarine cable body comprises a cable core, an inner sheath is arranged on the outer coating of the cable core, a steel wire armor layer is arranged on the outer coating of the inner sheath, and an outer sheath is arranged on the outer coating of the steel wire armor layer. The dynamic submarine cable has the advantages that insulating oil is filled between the inner sheath and the outer sheath, and the pressure balancing device is arranged on the dynamic submarine cable body, so that the dynamic submarine cable has good water blocking performance and long service life.
Description
Technical Field
The invention relates to the field of ocean engineering, in particular to a dynamic submarine cable assembly for deep water.
Background
At present, a lead sheath is usually arranged in the existing deepwater submarine cable and is used for playing a role in water blocking, the dynamic submarine cable needs to bear the motion from an upper platform and the wind, wave and current loads in deepwater in the specific use process, the dynamic submarine cable is repeatedly bent in water, the lead sheath arranged in the dynamic submarine cable and used for playing a role in water blocking is difficult to bear long-term bending loads and is easy to fatigue and crack to cause failure, and therefore, the problem of water blocking of the dynamic submarine cable is solved and becomes a great technical difficulty in the current dynamic submarine cable manufacturing field; in addition, the dynamic submarine cable applied to the deep water environment is extruded inwards by the action of the hydrostatic seawater pressure on the outer sheath, extrusion force is transmitted to the steel wire armor of the dynamic submarine cable, friction stress of the steel wire armor under repeated bending is greatly increased, fatigue cracks appear on the steel wire armor to break, in order to reduce the influence of the hydrostatic seawater pressure on the steel wire armor, the outer sheath can be perforated to balance internal and external pressure, but the outer sheath is perforated, seawater easily enters the submarine cable through the holes in the outer sheath, the problem that the steel wire armor is corroded by seawater is caused, and the service life of the dynamic submarine cable is influenced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a dynamic submarine cable assembly for deep water, which has better water blocking performance and longer service life.
The technical scheme adopted for solving the technical problems is as follows:
the utility model provides a dynamic sea cable subassembly for deep water, includes the dynamic sea cable body, the dynamic sea cable body include the cable core, the outside cladding of cable core be provided with the inner sheath, the outside cladding of inner sheath be provided with the steel wire armor, the outside cladding of steel wire armor be provided with the oversheath, the inner sheath with the oversheath between pack and be equipped with insulating oil, insulating oil pack and set up in the clearance of steel wire armor, the dynamic sea cable body on be provided with the pressure balancing device that is used for balancing the inside and outside pressure of dynamic sea cable body.
The pressure balancing device is an elastic oil bag used for supplementing oil to the steel wire armor, insulating oil is filled in an inner cavity of the elastic oil bag, a center hole which is communicated left and right and used for enabling the dynamic submarine cable body to penetrate through is formed in the elastic oil bag, the elastic oil bag comprises an annular oil outlet part, an installation part and a stress part which are sequentially arranged left and right, an oil outlet channel used for enabling the insulating oil filled in the elastic oil bag to be output outwards is formed in the oil outlet part from left to right, the oil outlet channel is communicated with the inner cavity of the elastic oil bag, the oil outlet part is matched with the steel wire armor and stretches into the steel wire armor, and the elastic oil bag is provided with a sealing structure used for preventing external seawater from entering into the steel wire armor. The elastic oil bag is adopted as a pressure balancing device, the structure is simple, the cost is low, when the elastic oil bag is subjected to the action of the hydrostatic pressure of the seawater, the stress part of the elastic oil bag can be subjected to certain extrusion force, insulating oil filled in the inner cavity of the elastic oil bag enters the steel wire armor layer through the oil outlet channel, the pressure inside the dynamic submarine cable is increased to resist the external pressure, so that the balance of the internal pressure and the external pressure is realized, the steel wire armor is protected, in addition, the sealing structure arranged on the elastic oil bag can effectively prevent the external seawater from entering the steel wire armor layer, thereby effectively avoiding the corrosion of the external seawater to the steel wire armor, effectively prolonging the service life of the steel wire armor, and effectively ensuring the service life of the whole dynamic submarine cable.
The sealing structure comprises an outer sealing sleeve and an inner sealing sleeve which are coaxial with the central hole, the outer sealing sleeve is sleeved and coated on the oil outlet part and the mounting part, the outer diameter of the oil outlet part is smaller than that of the mounting part, the outer sealing sleeve is fixedly mounted on the mounting part, an annular gap for the outer sheath to extend into is arranged between the outer sealing sleeve and the oil outlet part, the outer sheath extends into the annular gap, the outer wall of the outer sheath is tightly attached to the inner wall of the outer sealing sleeve, and the inner wall of the outer sheath is tightly attached to the outer wall of the oil outlet part; the inner sealing sleeve is arranged in the central hole and is positioned in the mounting part, a mounting hole which is used for the inner sheath to extend into the mounting and is penetrated left and right is formed in the inner sealing sleeve, the inner sheath extends into the mounting hole, the outer wall of the inner sealing sleeve is fixedly arranged on the inner wall of the central hole, the inner end face of the inner sealing sleeve is tightly attached to the outer wall of the inner sheath, the left end face of the inner sealing sleeve is attached to the right end face of the steel wire armor layer, and the stress part is arranged outside the inner sheath in a surrounding mode. The sealing structure is simple, the cost is low, the sealing effect is good, external seawater can be effectively prevented from entering the steel wire armor layer from the outer sheath through the installation of the outer sealing sleeve, external seawater can be effectively prevented from entering the steel wire armor layer through the inner sheath through the installation of the inner sealing sleeve, and therefore effective isolation protection is formed on the steel wire armor layer, the service life of the steel wire armor is effectively prolonged, and the service life of the whole dynamic submarine cable is effectively guaranteed. When the dynamic submarine cable is specifically installed and used, the outer sheath and the steel wire armor on the dynamic submarine cable body can be partly stripped, the inner sheath is exposed, the inner sheath stretches into the inner sealing sleeve and is tightly attached to the inner sealing sleeve, the oil outlet part stretches into the steel wire armor layer, and the right end of the outer sheath stretches into the annular gap in a tightly-matched mode to achieve tight attachment and installation between the outer sealing sleeve and the outer sheath.
The outer sealing sleeve is internally provided with a limiting convex ring, the limiting convex ring is arranged in the annular gap, the right end face of the limiting convex ring is fixedly connected with the left end face of the mounting part, the inner wall of the outer sheath is fixedly connected with the outer wall of the oil outlet part, and the right end face of the outer sheath is attached to the left end face of the limiting convex ring. The limiting convex ring plays a limiting role in the extending installation of the outer sheath and the oil outlet part.
The insulating oil is low-viscosity insulating oil. The insulating oil adopts low-viscosity insulating oil, the consumption is small, the insulating performance of the cable is not affected, and the low-viscosity insulating oil is easy to fill into the steel wire armor layer.
The cable core and the inner sheath between be provided with the water-blocking layer, the water-blocking layer for the cladding set up the outside semiconductor water-blocking strip of cable core, the inner sheath cladding set up the outside of water-blocking layer. Further water blocking is achieved through the water blocking layer.
The cable core is formed by twisting three insulating core wires.
The three insulating core wires are mutually circumscribed, and a filling body is arranged in a gap formed by mutually circumscribed three insulating core wires. The filler is convenient for the cable core wire to form a whole circle after being twisted.
Compared with the prior art, the invention has the advantages that: the insulating oil filled between the inner sheath and the outer sheath has a water blocking effect, so that the problems of water tree growth and failure of the dynamic submarine cable in a deep water environment for a long time can be effectively solved; the pressure balancing device for balancing the internal pressure and the external pressure of the dynamic submarine cable body is arranged on the dynamic submarine cable body, so that the problems of extrusion friction and fatigue fracture caused by unbalanced pressure of the steel wire armor can be effectively solved; through the dual functions of the insulating oil and the pressure balancing device, the steel wire armor layer in the dynamic submarine cable body is protected, so that the dynamic submarine cable of the structure has good water blocking performance and long service life.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic diagram of the dynamic submarine cable body according to the present invention;
fig. 3 is a schematic cross-sectional view of the pressure balancing apparatus of the present invention.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 3, a dynamic submarine cable assembly for deep water comprises a dynamic submarine cable body 1, wherein the dynamic submarine cable body 1 comprises a cable core, an inner sheath 101 is arranged on the outer cladding of the cable core, a steel wire armor layer 102 is arranged on the outer cladding of the inner sheath 101, an outer sheath 103 is arranged on the outer cladding of the steel wire armor layer 102, insulating oil (not shown in the figure) is filled between the inner sheath 101 and the outer sheath 103, the insulating oil is filled in a gap of the steel wire armor layer 102, and a pressure balancing device for balancing the internal pressure and the external pressure of the dynamic submarine cable body 1 is arranged on the dynamic submarine cable body 1.
In this embodiment, the pressure balancing device is an elastic oil bag 2 for supplementing oil to the steel wire armor layer 102, insulating oil (not shown in the figure) is filled in an inner cavity 201 of the elastic oil bag 2, a center hole 21 through which a dynamic submarine cable body passes is arranged in the elastic oil bag 2, the elastic oil bag 2 comprises an annular oil outlet part 202, an installation part 203 and a stress part 204 which are sequentially arranged from left to right, an oil outlet channel 2021 for outputting the insulating oil filled in the elastic oil bag 2 outwards is arranged on the oil outlet part 202 from left to right, the oil outlet channel 2021 is communicated with the inner cavity of the elastic oil bag 2, the oil outlet part 202 is matched with the steel wire armor layer 102 and stretches into the steel wire armor layer 102, and a sealing structure for preventing external seawater from entering the steel wire armor layer 102 is arranged on the elastic oil bag 2.
In this specific embodiment, the sealing structure includes an outer sealing sleeve 3 and an inner sealing sleeve 4 coaxial with the central hole 21, the outer sealing sleeve 3 is sleeved and coated on the oil outlet portion 202 and the mounting portion 203, the outer diameter of the oil outlet portion 202 is smaller than the outer diameter of the mounting portion 203, the outer sealing sleeve 3 is fixedly mounted on the mounting portion 203, an annular gap 205 for the outer sheath 103 to extend into and be mounted is arranged between the outer sealing sleeve 3 and the oil outlet portion 202, the outer sheath 103 extends into and is mounted in the annular gap 205, the outer wall of the outer sheath 103 is tightly attached to the inner wall of the outer sealing sleeve 3, and the inner wall of the outer sheath 103 is tightly attached to the outer wall of the oil outlet portion 202; the inner sealing sleeve 4 is arranged in the central hole 21 and is positioned in the mounting part 203, a mounting hole 41 which is used for the inner sheath 101 to extend into the mounting and is penetrated left and right is arranged in the inner sealing sleeve 4, the inner sheath 101 extends into the mounting hole 41, the outer wall of the inner sealing sleeve 4 is fixedly arranged on the inner wall of the central hole 21, the inner end surface of the inner sealing sleeve 4 is tightly attached to the outer wall of the inner sheath 101, the left end surface of the inner sealing sleeve 4 is attached to the right end surface of the steel wire armor layer 102, and the stress part 204 is arranged outside the inner sheath 101 in a surrounding manner.
In this specific embodiment, a limiting convex ring 301 is disposed in the outer sealing sleeve 3, the limiting convex ring 301 is disposed in the annular gap 205, the right end face of the limiting convex ring 301 is fixedly connected with the left end face of the mounting portion 203, the inner wall of the outer sheath 103 is fixedly connected with the outer wall of the oil outlet portion 202, and the right end face of the outer sheath 103 is attached to the left end face of the limiting convex ring 301.
In this embodiment, the insulating oil is a low viscosity insulating oil.
In this embodiment, a water blocking layer 104 is disposed between the cable core and the inner sheath 101, the water blocking layer 104 is a semiconducting water blocking tape wrapped outside the cable core, and the inner sheath 101 is wrapped outside the water blocking layer 104.
In this embodiment, the cable core is formed by twisting three insulating cores 105.
In this embodiment, three insulating cores 105 are circumscribed to each other, and a filler 106 is provided in a gap formed by the three insulating cores 105 circumscribed to each other.
Claims (7)
1. The dynamic submarine cable assembly for the deep water comprises a dynamic submarine cable body, wherein the dynamic submarine cable body comprises a cable core, an inner sheath is arranged on the outer coating of the cable core, a steel wire armor layer is arranged on the outer coating of the inner sheath, and an outer sheath is arranged on the outer coating of the steel wire armor layer; the pressure balancing device is an elastic oil bag used for supplementing oil to the steel wire armor, insulating oil is filled in an inner cavity of the elastic oil bag, a center hole which is communicated left and right and used for enabling the dynamic submarine cable body to penetrate through is formed in the elastic oil bag, the elastic oil bag comprises an annular oil outlet part, an installation part and a stress part which are sequentially arranged left and right, an oil outlet channel used for enabling the insulating oil filled in the elastic oil bag to be output outwards is formed in the oil outlet part from left to right, the oil outlet channel is communicated with the inner cavity of the elastic oil bag, the oil outlet part is matched with the steel wire armor and stretches into the steel wire armor, and the elastic oil bag is provided with a sealing structure used for preventing external seawater from entering into the steel wire armor.
2. The dynamic sea cable assembly for deep water as claimed in claim 1, wherein the sealing structure comprises an outer sealing sleeve and an inner sealing sleeve which are coaxial with the central hole, the outer sealing sleeve is sleeved and coated on the oil outlet part and the mounting part, the outer diameter of the oil outlet part is smaller than that of the mounting part, the outer sealing sleeve is fixedly mounted on the mounting part, an annular gap for the outer sheath to extend into and be mounted is arranged between the outer sealing sleeve and the oil outlet part, the outer sheath extends into and is mounted in the annular gap, the outer wall of the outer sheath is clung to the inner wall of the outer sealing sleeve, and the inner wall of the outer sheath is clung to the outer wall of the oil outlet part; the inner sealing sleeve is arranged in the central hole and is positioned in the mounting part, a mounting hole which is used for the inner sheath to extend into the mounting and is penetrated left and right is formed in the inner sealing sleeve, the inner sheath extends into the mounting hole, the outer wall of the inner sealing sleeve is fixedly arranged on the inner wall of the central hole, the inner end face of the inner sealing sleeve is tightly attached to the outer wall of the inner sheath, the left end face of the inner sealing sleeve is attached to the right end face of the steel wire armor layer, and the stress part is arranged outside the inner sheath in a surrounding mode.
3. The dynamic submarine cable assembly for deep water according to claim 2, wherein a limiting convex ring is arranged in the outer sealing sleeve, the limiting convex ring is arranged in the annular gap, the right end face of the limiting convex ring is fixedly connected with the left end face of the mounting part, the inner wall of the outer sheath is fixedly connected with the outer wall of the oil outlet part, and the right end face of the outer sheath is attached to the left end face of the limiting convex ring.
4. A dynamic sea cable assembly for deep water according to claim 1, wherein the insulating oil is a low viscosity insulating oil.
5. The dynamic sea cable assembly for deep water according to claim 1, wherein a water blocking layer is arranged between the cable core and the inner sheath, the water blocking layer is a semi-conductive water blocking tape coated outside the cable core, and the inner sheath is coated outside the water blocking layer.
6. The dynamic sea cable assembly for deep water according to claim 1, wherein the cable core is formed by twisting three insulating core wires.
7. The dynamic sea cable assembly for deep water according to claim 6, wherein three of the insulating core wires are circumscribed with each other, and a filler is provided in a gap formed by the three insulating core wires circumscribed with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910881330.9A CN110610774B (en) | 2019-09-18 | 2019-09-18 | Dynamic submarine cable assembly for deep water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910881330.9A CN110610774B (en) | 2019-09-18 | 2019-09-18 | Dynamic submarine cable assembly for deep water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110610774A CN110610774A (en) | 2019-12-24 |
| CN110610774B true CN110610774B (en) | 2024-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910881330.9A Active CN110610774B (en) | 2019-09-18 | 2019-09-18 | Dynamic submarine cable assembly for deep water |
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| CN (1) | CN110610774B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111243787A (en) * | 2020-02-28 | 2020-06-05 | 中天科技海缆有限公司 | Bunched submarine cable and preparation method thereof |
| CN111899925B (en) * | 2020-08-06 | 2021-11-26 | 徐垚 | Radio frequency cable assembly for deep sea |
| CN114156011B (en) * | 2021-05-19 | 2024-01-23 | 华海通信技术有限公司 | Balanced amplifying equipment for small submarine cable transmission signals |
| CN113488245B (en) * | 2021-07-06 | 2023-04-07 | 海盐爱德森特种线缆有限公司 | High-temperature-resistant color-changing cable and production process thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5577926A (en) * | 1994-12-05 | 1996-11-26 | Texaco, Inc. | Pressure equalization adapter for subsea cable termination or junction box |
| CN101241213A (en) * | 2008-02-13 | 2008-08-13 | 中天科技海缆有限公司 | Deep sea optic cable and its manufacture method |
| CN201156097Y (en) * | 2008-02-13 | 2008-11-26 | 中天科技海缆有限公司 | Deep sea optical fiber |
| CN104318991A (en) * | 2014-11-10 | 2015-01-28 | 成都冠禹科技有限公司 | Deep sea cable |
| CN105575511A (en) * | 2015-10-15 | 2016-05-11 | 长沙恒飞电缆有限公司 | Deep submersion pressure-resistant waterproof cable and preparation method thereof |
| KR20160088782A (en) * | 2015-01-16 | 2016-07-26 | 엘에스전선 주식회사 | umbilical cable for deep sea |
| CN109842085A (en) * | 2019-03-22 | 2019-06-04 | 中国科学院声学研究所 | A kind of pressure balance type seabed master base station photoelectric separating apparatus |
-
2019
- 2019-09-18 CN CN201910881330.9A patent/CN110610774B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5577926A (en) * | 1994-12-05 | 1996-11-26 | Texaco, Inc. | Pressure equalization adapter for subsea cable termination or junction box |
| CN101241213A (en) * | 2008-02-13 | 2008-08-13 | 中天科技海缆有限公司 | Deep sea optic cable and its manufacture method |
| CN201156097Y (en) * | 2008-02-13 | 2008-11-26 | 中天科技海缆有限公司 | Deep sea optical fiber |
| CN104318991A (en) * | 2014-11-10 | 2015-01-28 | 成都冠禹科技有限公司 | Deep sea cable |
| KR20160088782A (en) * | 2015-01-16 | 2016-07-26 | 엘에스전선 주식회사 | umbilical cable for deep sea |
| CN105575511A (en) * | 2015-10-15 | 2016-05-11 | 长沙恒飞电缆有限公司 | Deep submersion pressure-resistant waterproof cable and preparation method thereof |
| CN109842085A (en) * | 2019-03-22 | 2019-06-04 | 中国科学院声学研究所 | A kind of pressure balance type seabed master base station photoelectric separating apparatus |
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| Publication number | Publication date |
|---|---|
| CN110610774A (en) | 2019-12-24 |
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