CN114005581A - Single-core submarine cable armored grounding structure and armored grounding method - Google Patents
Single-core submarine cable armored grounding structure and armored grounding method Download PDFInfo
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- CN114005581A CN114005581A CN202111092611.XA CN202111092611A CN114005581A CN 114005581 A CN114005581 A CN 114005581A CN 202111092611 A CN202111092611 A CN 202111092611A CN 114005581 A CN114005581 A CN 114005581A
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- 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
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- 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
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
- H01B7/324—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising temperature sensing means
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- 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
- H01B7/40—Insulated conductors or cables characterised by their form with arrangements for facilitating mounting or securing
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- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a single-core submarine cable armor grounding structure and an armor grounding method, relates to the technical field of cables, and solves the problems or achieves the aim of realizing the isolation of mechanical fixing and electrical grounding of a submarine cable, realizing more reliable grounding of armor, realizing real-time monitoring of temperature and current, facilitating operation and maintenance personnel to master the operation condition of the submarine cable in time, reducing accidents and improving the reliability of submarine cable operation. The main technical scheme is that the armor layer; the anchoring device is used for fixedly supporting an armor layer, an insulating lining layer is arranged on the contact surface of the armor layer and the anchoring device, the insulating lining layer wraps the armor layer, and the anchoring device is clamped on the insulating lining layer; a grounding device connected with the armor layer. The invention is mainly used for the armored grounding of the submarine cable.
Description
Technical Field
The invention relates to the technical field of cables, in particular to an armor grounding structure, namely an armor grounding method, of a single-core submarine cable.
Background
When the core section of the submarine cable is large, many high-voltage and ultrahigh-voltage submarine cables mostly adopt a single-core form for the convenience of manufacture and construction. The submarine cable line is limited by a laying environment, measures such as metal sheath cross interconnection, cable body transposition and the like are not convenient to carry out on the submarine cable line, a mode that the metal sheath and the armor are directly grounded at two ends of the submarine cable is adopted, the circulating current of the protective sheath and the armor is large at the moment, and the numerical value of the protective sheath and the armor is close to the core current. Since the grounding current of the armor is large, the grounding resistance of the armor must be small and the contact should be reliable. At present, the grounding of a submarine cable armor of an offshore wind power plant generally adopts a hoop form, but poor contact of a steel wire armor grounding hoop often occurs, and under the condition of armor circulation, the main insulation is damaged due to overhigh temperature, and finally the main insulation of a cable is broken down, so that the original armor mounting and mounting mode is necessarily improved, the grounding resistance of a grounding wire is smaller, and the length and the trend of the grounding wire are more standard.
Many snap-ins of present submarine cable anchor are on the steel structure of ground connection, and anchor had both had the fixed action to the submarine cable, had undertaken the grounding current of armor again, and the staple bolt ground connection on the steel structure is passed through to the armor, is not convenient for detect grounding current, as shown in fig. 1. And only one grounding wire is led out from each phase of armor, so that the effective grounding section is small, no standby is available, and the reliability is not high. And there is not buffer material between armor and the ground connection staple bolt, and the easy not hard up contact resistance that leads to of contact surface increases under the condition of expend with heat and contract with cold, causes staple bolt department to generate heat and even destroys inside insulating properties, leads to the submarine cable to take place the insulation breakdown trouble, and the risk of generating heat is higher for the staple bolt position, but this position does not generally install temperature monitoring device.
At the electrical connection part of the armor layer and the anchoring device, the ground wire and the armor layer are mostly compressed by a constant force spring in the prior art, and some ground wires and armor layers are compressed by a hose clamp. The two modes can meet the operation requirement under the condition of small armored circulation, but for the single-core high-voltage submarine cable, the two methods have obvious defects because the circulation is large. Above two kinds of modes are all direct to compress tightly the earth connection on the armor, at the operation in-process, along with the change of submarine cable electric current, can arouse the temperature variation of the inside each layer of armor, and then take place expend with heat and contract with cold. The contact performance of the armor and the grounding wire is gradually reduced due to long-term thermal barrier contraction, the contact resistance is increased, the temperature is further increased under the action of the circulating current of the armor, and the fault of overheating and burning can be seriously caused.
Disclosure of Invention
In view of the above, the invention provides an armored grounding structure and an armored grounding method for a single-core submarine cable, and mainly aims to realize the isolation between the mechanical fixation and the electrical grounding of a submarine cable and the more reliable grounding of the armor through the separated design of an anchoring device and a grounding device, realize the real-time monitoring of temperature and current, facilitate operation and maintenance personnel to master the operation condition of the submarine cable in time, reduce the occurrence of accidents, and improve the operation reliability of the submarine cable.
In order to achieve the purpose, the invention mainly provides the following technical scheme:
in one aspect, embodiments of the present invention provide a single core submarine cable armored grounding structure. Which comprises the following steps:
an armor layer;
the anchoring device is used for fixedly supporting an armor layer, an insulating lining layer is arranged on the contact surface of the armor layer and the anchoring device, the insulating lining layer wraps the armor layer, and the anchoring device is clamped on the insulating lining layer;
a grounding device connected with the armor layer.
As mentioned above, the insulating liner is made of polyvinyl chloride material, or is made of insulating materials such as rubber, latex, plastic and the like.
As mentioned above, the grounding device includes the hoop device hooped on the armor layer, at least one grounding wire, a grounding box and a grounding bar electrically connected with the grounding box; one end of the at least one grounding wire is connected with the hoop device, and the other end of the at least one grounding wire is connected with the grounding box; the grounding bar is connected with the ground net or the offshore booster station platform.
As mentioned above, the hoop device comprises the clamp, the first fastener and the second fastener; the clamp is hooped on the armor layer through a first fastener; the both ends of at least one earth connection all adopt the copper nose crimping, be furnished with on the anchor clamps with the supporting mounting hole of earth connection copper nose, the copper nose of the one end of at least one earth connection passes through the second fastener crimping is in the mounting hole.
As previously mentioned, the inner surface of the clamp is a rough structure;
the clamp is a clamp with the relative magnetic permeability less than 1.5.
As mentioned above, the contact surface between the hoop device and the armor layer is provided with a buffer layer.
As mentioned above, the buffer layer is made of a tinned copper woven tape, and the tinned copper woven tape is uniformly wound on the surface of the armor layer steel wire.
As mentioned above, a current monitoring device is further arranged in the grounding box and used for monitoring the current of the grounding wire in real time.
As mentioned above, the grounding device further comprises a temperature measuring device, and the temperature measuring device is installed on the armor layer steel wire exposed beside the hoop device and used for monitoring the temperature of the hoop device in real time.
In another aspect, an embodiment of the present invention further provides a method for grounding an armor of an ocean bottom cable, including:
the method comprises the following steps: stripping out steel wires of the armor layer;
step two: clearing asphalt on the surface of the steel wire of the armor layer;
step three: laying a buffer layer;
step four: installing the hoop device;
step five: mounting a grounding wire;
step six: installing a temperature measuring device;
step seven: installing a grounding box;
step eight: and (6) mounting an anchoring device.
By the technical scheme, the invention at least has the following advantages:
1. according to the single-core submarine cable armored grounding structure, the anchoring device and the grounding device are installed separately, so that mechanical fixing and electrical grounding isolation of a submarine cable are realized, and by arranging the temperature measuring device and the current monitoring device, accurate measurement and real-time monitoring of armored grounding circulation are realized, operation and maintenance personnel can master the submarine cable operation condition in time conveniently, accidents are reduced, and the submarine cable operation reliability is improved;
2. the single-core submarine cable armored grounding structure comprises the hoop device with the hoop on the armor layer through the grounding device, grounding in the hoop mode is designed, the buffer layer is arranged on the contact surface of the hoop device and the armor layer, and the service life of the hoop device in the use environment with large current, expansion with heat and contraction with cold is effectively prolonged.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Drawings
FIG. 1 is a schematic structural diagram of a submarine cable armored grounding structure in the prior art;
fig. 2 is a schematic view of an armored grounding structure of a single-core submarine cable according to an embodiment of the present invention;
fig. 3 is a schematic diagram of an armor layer structure in an armored grounding structure of a single core submarine cable according to an embodiment of the present invention;
fig. 4 is a first schematic structural diagram of a hoop holding device in an armored grounding structure of a single-core submarine cable according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a hoop holding device in an armored grounding structure of a single-core submarine cable according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a buffer layer and armor layer installation structure in an armored grounding structure of a single-core submarine cable according to an embodiment of the present invention;
fig. 7 is a schematic view of an armor layer and hoop device installation structure in an armored grounding structure of a single-core submarine cable according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a connection structure of a hoop device and a grounding wire in an armored grounding structure of a single-core submarine cable according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a connection structure of an armor layer and a temperature measuring device in an armored grounding structure of a single-core submarine cable provided by an embodiment of the invention.
Detailed Description
To further explain the technical means and effects of the present invention adopted to achieve the intended purpose, the following detailed description of the embodiments, structures, features and effects according to the present invention will be given with reference to the accompanying drawings and preferred embodiments.
As shown in fig. 2, an embodiment of the present invention provides a single core submarine cable armored grounding structure, which includes: armor 1, anchor 2 and grounding means 3.
As shown in fig. 3, the armor layer 1 is made of steel wires.
As shown in fig. 2 and 3, the anchoring device 2 is used for fixedly supporting the armor layer 1, the anchoring device 2 only has a mechanical fixing and supporting function, the contact surface of the armor layer 1 and the anchoring device 2 is provided with an insulating lining 4, the insulating lining 4 is wrapped on the armor layer 1, and the anchoring device 2 is clamped on the insulating lining 4; the setting of insulating lining 4 has cut off the electrical connection of armor with anchor 2, and insulating lining 4 can be polyvinyl chloride material, also can select for use insulating class materials such as rubber, latex, plastics, separates armor 1 and anchor through insulating lining 4, plays insulating and buffering effect. If the submarine cable is a new submarine cable 5, the insulating lining 4 can be directly wrapped on the outer layer of the PP rope without peeling off the PP rope on the outer side of the armor layer when the armor layer 1 is fixedly supported by the anchoring device 2.
As shown in fig. 2 to 5, 7 and 8, the grounding device 3 comprises a hoop device 31 hooped on the armor layer 1, at least one grounding wire 32, a grounding box 33 and a grounding bar 34 electrically connected with the grounding box 33; one end of the at least one grounding wire 32 is connected with the hoop device 31, and the other end of the at least one grounding wire 32 is connected with the grounding box 33; the grounding bar 34 is connected with the ground grid, and if the platform is an offshore booster station platform, the grounding bar 34 is connected with a platform steel structure. The hoop device 31 is made of 316L stainless steel materials, meets the corrosion prevention requirement of C5-M grade, and the stainless steel materials used by the hoop device 31Is 10 mm; the hoop holding device 31 comprises a clamp 311, a first fastener (not shown in the figure) and a second fastener (not shown in the figure); the clamp 311 is hooped on the armor layer 1 through a first fastener; copper nose crimping is all adopted at the both ends of earth connection 32, and in order to distinguish conveniently, sequence number 2 and 3 copper nose crimping are adopted respectively at the both ends of earth connection 32, the copper nose is tin-plated copper nose, be furnished with on the anchor clamps 311 with the supporting mounting hole of earth connection 32 copper nose, the copper nose of the one end of an at least earth connection 32 passes through the second fastener crimping is in the mounting hole 312. The clamp 311 is demagnetized by using a demagnetizing machine, so that the relative permeability is ensured to be less than 1.5, the inner surface of the clamp 311 is in a rough structure, and the inner surface of the clamp 311 needs to be subjected to rough treatment. The first fastener is an M12 80 bolt, and the single core submarine cable needs at least 6 sets of M12 80 bolts. The second fasteners are M16 x 35 bolts, and the single core submarine cable requires at least 2 sets of M16 x 35 bolts. The grounding wire 32 adopts YJRV-0.6/1kV 1 x 240mm2The type of cable, the section of which is selected according to the circulation size of the armor layer 1. Preferably, there are two grounding wires 32, the single core submarine cable needs 4 sets of M16 x 35 bolts, the copper noses at one end of the two grounding wires 32 are respectively pressed into the mounting holes 312 at two sides of the clamp 311 through the second fastener, that is, the M16 x 35 bolts, and the two grounding wires 32 are led out from the hoop device 31, so that the effective grounding metal section is improved, and the two grounding wires 32 are mutually spare to a certain extent. The grounding box 33 is made of 304 stainless steel, is provided with fastening bolts and is installed at a position as small as possible away from the hoop device 31, and the grounding wires 32 are led out from the grounding box 43 and then are neatly and regularly arranged; a current monitoring device (not shown in the figure) is also arranged in the grounding box 33, the range of the current monitoring device is 0-550A, and the use environment is-40-70 ℃; the current monitoring device is a current sensor with a passive wireless and wireless transmission distance not less than 200m, the current monitoring data receiving device is a 220V integrated control computer, the monitored current data are transmitted to the integrated control computer beyond 200m to be displayed by the current monitoring device, and then are wirelessly transmitted to the cloud end through the DTU, so that the cloud end can be conveniently checked. Due to the fact thatThe service life of the current monitoring device and the integrated control computer is required to be not less than 5 years, so that the current monitoring device and the integrated control computer need to be installed at a designated place or be guided to be installed. In practical use, the insulating lining layer 4 is manufactured into a rectangle with a proper size, the width of the rectangle is slightly wider than the width of the hoop sea floor cable part clamped by the hoop device 31, and the length of the rectangle can ensure that two circles are wrapped on the armor layer 1.
According to the single-core submarine cable armored grounding structure provided by the embodiment of the invention, the anchoring device and the grounding device are separately installed, so that the mechanical fixation and electrical grounding isolation of a submarine cable is realized, and the accurate measurement and real-time monitoring of the armored grounding circulation are realized by arranging the temperature measuring device and the current monitoring device, so that operation and maintenance personnel can master the submarine cable operation condition in time, the occurrence of accidents is reduced, and the reliability of submarine cable operation is improved.
Further, in order to reduce the contact resistance of the contact surface between the armor layer 1 and the hoop device 31 and to achieve the buffering effect, as shown in fig. 6, a buffer layer 35 is disposed on the contact surface between the hoop device 31 and the armor layer 1, the buffer layer 35 is made of a tin-plated copper braided ribbon, the tin-plated copper braided ribbon is wound on the surface of the steel wire of the armor layer 1, and during the specific installation, a 12-square tin-plated copper braided ribbon is required to be uniformly wound on the steel wire of the armor layer 1 as the buffer layer 35, of course, the buffer layer 35 may be made of other materials, for example, the buffer layer 35 may also be a constant-force spring copper braided ribbon, or other materials, and the specific invention is not limited in this respect, as long as it can be used as the buffer layer, and during the specific use, the constant-force spring copper braided ribbon may be uniformly wound on the steel wire of the armor layer 1 as the buffer layer 35, the arrangement of the buffer layer 35 effectively prolongs the service life of the hoop device 31 in the use environment of high current and expansion with heat and contraction with cold.
Further, in order to improve the service life of the submarine cable, as shown in fig. 9, the grounding device 3 further includes a temperature measuring device 36, which is installed on the exposed steel wire of the armor layer 1 beside the hoop device 31 and is used for monitoring the temperature of the hoop device 31 in real time; the use environment of the temperature measuring device 36 is-40-70 ℃, the temperature measuring device 36 is a passive wireless temperature sensor with a wireless transmission distance not less than 200m, the temperature measuring device 36 transmits the monitored temperature data to an integrated control computer with a distance not less than 200m for display, and the temperature data are transmitted to the cloud end through a DTU in a wireless mode, so that the cloud end can conveniently check the temperature data.
In another aspect, an embodiment of the present invention provides a method for grounding an armor of an ocean bottom cable, which includes:
the method comprises the following steps: stripping steel wires of the armor layer 1; after confirming the power failure of the submarine cable, a cutter is used for stripping a PP rope with the length of 300mm on the outer layer of the armor layer 1 to expose a steel wire of the armor layer 1, and in the stripping process, attention is paid to the protection of the optical fiber and the cable core, so that the optical memory cable and the cable core cannot be damaged.
Step two: asphalt cleaning is carried out on the surface of the steel wire of the armor layer 1; the method comprises the steps of firstly paving waste cloth below a submarine cable to prevent asphalt from dropping into a cable trench, spraying the surface of a steel wire for multiple times by using an asphalt cleaning agent, erasing the asphalt from the upper side to the two sides, properly heating by using a flame thrower, and removing the asphalt at an accelerated speed to ensure that the natural color of the steel wire is completely exposed until no asphalt exists, wherein the continuous flame throwing time of the flame thrower is not more than 30s, and the distance between the flame center of the flame thrower and the steel wire is not less than 50 mm.
Step three: laying a buffer layer 35; the 12 square tinned copper braided belt is uniformly wound on the surface of the steel wire of the armor layer 1, and the steel wire is pre-fixed by using an adhesive tape after being ensured not to be loosened.
Step four: installing the hoop device 31; the grounding hoop device 31 is arranged in the range of the tinned copper braided strap, and the tinned copper braided strap is ensured not to fall off in the installation process.
Step five: a ground line 32 is installed; two ground wires 32 are taken out, and one ends of the two ground wires 32 are respectively pressed into the mounting holes 312 on both sides of the clamp 311 by M16 × 35 bolts, so that the clamp 311 is connected to the ground wires 32.
Step six: mounting a temperature measuring device 36; the temperature measuring device 36 is installed on the armor layer 1 steel wire exposed beside the hoop device 31, monitoring data monitored by the temperature measuring device 36 are transmitted to the integrated control computer in a wireless mode to be displayed, and then transmitted to the cloud end through the DTU, so that the cloud end can be conveniently checked.
Step seven: installing a grounding box 33; fixedly mounting the grounding box 33 toThe other ends of the two grounding wires 32 are connected into the grounding box 33 at proper positions, and the grounding box 33 is connected with a 240mm ground wire2The cable is connected out to the main grounding grid, the grounding wire 32 is monitored through the current monitoring device, the current monitoring device transmits monitored current data to the integrated control computer to be displayed, the current data are uploaded to the cloud end through the DTU, and the current data can be checked through the cloud end.
Step eight: installation of the anchoring device 2; firstly, an insulating lining layer 4 is arranged on an armor layer 1, then the armor layer 1 is fixedly supported by an anchoring device 2, and the installation of the armor grounding structure of the single-core submarine cable is finished.
According to the submarine cable armored grounding method, the anchoring device and the grounding device are installed separately, so that mechanical fixing and electrical grounding isolation of a submarine cable is achieved, accurate measurement and real-time monitoring of armored grounding circulation are achieved through the arrangement of the temperature measuring device and the current monitoring device, operation and maintenance personnel can master operation conditions of the submarine cable in time conveniently, accidents are reduced, operation reliability of the submarine cable is improved, and the service life of the hoop device in a large-current and expansion and contraction use environment is effectively prolonged through arrangement of the buffer layer.
The foregoing is a preferred embodiment of the present invention, and is not intended to limit the invention in any way, and any simple modification, equivalent changes and modifications made to the foregoing embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a single core submarine cable armor ground structure which characterized in that: it includes:
an armor layer;
the anchoring device is used for fixedly supporting an armor layer, an insulating lining layer is arranged on the contact surface of the armor layer and the anchoring device, the insulating lining layer wraps the armor layer, and the anchoring device is clamped on the insulating lining layer;
a grounding device connected with the armor layer.
2. The single core submarine cable armored grounding structure of claim 1,
the insulating lining layer is made of polyvinyl chloride materials or insulating materials such as rubber, latex and plastics.
3. The single core submarine cable armored grounding structure of claim 1,
the grounding device comprises a hoop device hooped on the armor layer, at least one grounding wire, a grounding box and a grounding bar electrically connected with the grounding box; one end of the at least one grounding wire is connected with the hoop device, and the other end of the at least one grounding wire is connected with the grounding box; the grounding bar is connected with the ground net or the offshore booster station platform.
4. The single core submarine cable armored grounding structure of claim 3,
the hoop device comprises a clamp, a first fastener and a second fastener; the clamp is hooped on the armor layer through a first fastener; the both ends of at least one earth connection all adopt the copper nose crimping, be furnished with on the anchor clamps with the supporting mounting hole of earth connection copper nose, the copper nose of the one end of at least one earth connection passes through the second fastener crimping is in the mounting hole.
5. The single core submarine cable armored grounding structure of claim 3,
the inner surface of the clamp is of a rough structure;
the clamp is a clamp with the relative magnetic permeability less than 1.5.
6. The single core submarine cable armored grounding structure of claim 3,
and a buffer layer is arranged on the contact surface of the hoop device and the armor layer.
7. The single core submarine cable armored grounding structure of claim 6,
the buffer layer is made of a tinned copper woven belt, and the tinned copper woven belt is uniformly wound on the surface of the armor layer steel wire.
8. The single core submarine cable armored grounding structure of claim 3,
and a current monitoring device is also arranged in the grounding box and used for monitoring the current of the grounding wire in real time.
9. The single core submarine cable armored grounding structure of claim 3,
the grounding device further comprises a temperature measuring device, and the temperature measuring device is installed on the armor layer steel wire exposed beside the hoop device and used for monitoring the temperature of the hoop device in real time.
10. A single-core submarine cable armored grounding method is characterized by comprising the following steps:
the method comprises the following steps: stripping out steel wires of the armor layer;
step two: clearing asphalt on the surface of the steel wire of the armor layer;
step three: laying a buffer layer;
step four: installing the hoop device;
step five: mounting a grounding wire;
step six: installing a temperature measuring device;
step seven: installing a grounding box;
step eight: and (6) mounting an anchoring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111092611.XA CN114005581B (en) | 2021-09-17 | 2021-09-17 | Single-core submarine cable armored grounding structure and armored grounding method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111092611.XA CN114005581B (en) | 2021-09-17 | 2021-09-17 | Single-core submarine cable armored grounding structure and armored grounding method |
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| Publication Number | Publication Date |
|---|---|
| CN114005581A true CN114005581A (en) | 2022-02-01 |
| CN114005581B CN114005581B (en) | 2023-01-24 |
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| CN (1) | CN114005581B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114694884A (en) * | 2022-03-29 | 2022-07-01 | 中国科学院合肥物质科学研究院 | Fully-insulated bipolar laminated bus |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB742331A (en) * | 1953-07-08 | 1955-12-21 | Standard Telephones Cables Ltd | Improvements in or relating to terminating arrangements for armoured electric cables particularly suitable for submarine cable repeater housings |
| US20110155459A1 (en) * | 2009-12-30 | 2011-06-30 | Schlumberger Technology Corporation | Connection system and method for subsea cables in severe environments |
| CN105655963A (en) * | 2014-11-10 | 2016-06-08 | 东名电力股份有限公司 | Fixed flange assembly and construction method for fixed flange assembly |
| CN210608504U (en) * | 2019-11-08 | 2020-05-22 | 江苏亨通高压海缆有限公司 | Submarine cable is with middle joint of strong ground connection |
| CN211183331U (en) * | 2019-12-23 | 2020-08-04 | 中天海洋系统有限公司 | Sealing and fixing device for dynamic submarine cable |
-
2021
- 2021-09-17 CN CN202111092611.XA patent/CN114005581B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB742331A (en) * | 1953-07-08 | 1955-12-21 | Standard Telephones Cables Ltd | Improvements in or relating to terminating arrangements for armoured electric cables particularly suitable for submarine cable repeater housings |
| US20110155459A1 (en) * | 2009-12-30 | 2011-06-30 | Schlumberger Technology Corporation | Connection system and method for subsea cables in severe environments |
| CN105655963A (en) * | 2014-11-10 | 2016-06-08 | 东名电力股份有限公司 | Fixed flange assembly and construction method for fixed flange assembly |
| CN210608504U (en) * | 2019-11-08 | 2020-05-22 | 江苏亨通高压海缆有限公司 | Submarine cable is with middle joint of strong ground connection |
| CN211183331U (en) * | 2019-12-23 | 2020-08-04 | 中天海洋系统有限公司 | Sealing and fixing device for dynamic submarine cable |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114694884A (en) * | 2022-03-29 | 2022-07-01 | 中国科学院合肥物质科学研究院 | Fully-insulated bipolar laminated bus |
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| Publication number | Publication date |
|---|---|
| CN114005581B (en) | 2023-01-24 |
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