CN109343184A - An optical cable junction box - Google Patents
An optical cable junction box Download PDFInfo
- Publication number
- CN109343184A CN109343184A CN201811245406.0A CN201811245406A CN109343184A CN 109343184 A CN109343184 A CN 109343184A CN 201811245406 A CN201811245406 A CN 201811245406A CN 109343184 A CN109343184 A CN 109343184A
- Authority
- CN
- China
- Prior art keywords
- base
- junction box
- upper chassis
- cable junction
- sealing
- 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.)
- Granted
Links
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
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
- G02B6/4446—Cable boxes, e.g. splicing boxes with two or more multi fibre cables
-
- 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
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Cable Accessories (AREA)
Abstract
The present invention provides a kind of cable junction box, which includes: housing, fiber management tray and pedestal；Wherein, housing covers on pedestal, to form seal cavity；Fiber management tray is set in seal cavity, the welding tail optical fiber for the fixed optical fiber that spirals；Top bottom-disc is equipped in seal cavity between pedestal and fiber management tray, top bottom-disc and pedestal interval are arranged, to form water area in seal cavity between top bottom-disc and pedestal, for that will infiltrate into the intracorporal water of seal chamber from pedestal or ice is partitioned in water area.The present invention passes through in the seal cavity formed between housing and pedestal and top bottom-disc is arranged between pedestal and fiber management tray, water area is formed between top bottom-disc and pedestal, the ice generated under water or low temperature to be partitioned in water area, it avoids water and ice from infiltrating into the winding displacement plate cabin above top bottom-disc, avoids ponding or freeze causing damage metal component in i.e. seal cavity to fiber management tray and occurring corroding or the phenomenon that icing ion electrolysis water causes hydrogen damage to fiber management tray inner fiber.
Description
Technical Field
The invention relates to the technical field of communication transmission of power transmission lines, in particular to an optical cable junction box.
Background
An Optical Fiber Composite Overhead Ground (OPGW) of a power transmission line for a long time is not only used as a Ground wire, but also mainly undertakes communication core services of a power system. Because the OPGW optical cable joint box is arranged on a transmission tower, the OPGW optical cable joint box is mostly in severe environments such as the open air, rivers, mountains and the like, and in the design of line products, the joint box usually requires the operation life to be not less than 25 years, so the requirement on the sealing property is extremely high.
In recent years, the fault of the OPGW optical cable joint box optical cable shows an increasing trend. The optical cable joint box fault directly affects the optical channel signal attenuation increase, the error rate of the transformer substation communication transmission equipment is increased, communication service interruption is caused in serious conditions, and huge risks are brought to the safety and stability of the power communication network. Actual line operation and maintenance data shows that the following problems often occur in the optical cable joint box: poor sealing of the splice box causes water to be accumulated in the splice box easily, metal components in the splice box are corroded, and the frozen ion electrolyzed water causes hydrogen damage to the optical fibers in the fiber coiling box.
Disclosure of Invention
In view of this, the invention provides an optical cable junction box, which aims to solve the problem of poor sealing of the existing optical cable junction box.
The invention provides an optical cable junction box, comprising: the device comprises a housing, a fiber coiling box and a base; the cover shell is covered on the base to form a sealed cavity; the fiber coiling box is arranged in the sealed cavity and used for coiling and fixing the fusion splicing tail fiber of the optical fiber; an upper chassis is arranged between the base and the fiber coiling box in the sealed cavity, and the upper chassis and the base are arranged at intervals so as to form a water storage area between the upper chassis and the base in the sealed cavity and isolate water or ice permeating into the sealed cavity from the base into the water storage area.
Further, in the optical cable junction box, the upper chassis is provided with a sealing structure along the circumferential direction thereof for sealing the water storage area.
Further, in the optical cable junction box, the sealing structure includes: a chassis sealing ring and an elastic ring; the elastic ring and the chassis sealing ring are arranged between the upper chassis and the housing in parallel along the thickness direction of the upper chassis, and the elastic ring is clamped in a groove formed in the circumferential direction of the upper chassis.
Further, in the optical cable junction box, the groove is circumferentially arranged along the entire circumference of the outer wall of the upper chassis.
Furthermore, in the optical cable junction box, the upper chassis is provided with a plurality of optical unit inlet holes for installing the optical unit tubes of the optical fibers.
Further, in the optical cable junction box, a rubber cone is arranged in the optical unit inlet hole, and a sealing nut is arranged outside the conical section of the optical unit inlet hole and used for sealing a gap between the optical unit tube and the rubber cone.
Further, in the optical cable junction box, the upper chassis is connected with the base through a first connecting mechanism.
Further, in the optical cable junction box, a base sealing ring is arranged between the base and the housing and used for sealing the sealing cavity.
Further, in the optical cable junction box, the cover and the base are connected through a second connecting mechanism.
Further, in the optical cable junction box, the second connection mechanism includes: the connecting band is arranged along the outer wall of the housing and the connecting piece is arranged at the end part of the connecting band; wherein, the connecting band with the base passes through the connecting piece is connected.
According to the optical cable junction box provided by the invention, the upper chassis is arranged between the base and the fiber coiling box in the sealed cavity formed between the housing and the base, so that the water storage area is formed between the upper chassis and the base, water permeating into the sealed cavity from the base or ice generated at low temperature is separated into the water storage area, the defect that water vapor and condensation caused by the fact that an optical cable penetrates into and out of two holes and is not sealed tightly is overcome, the optical fiber of the fiber coiling box is not influenced by accumulated water or ice, namely, the water and the ice in the water storage area are prevented from permeating into the wire arranging plate cabin above the upper chassis, and the phenomenon that metal components in the sealed cavity are damaged by the accumulated water or the ice, namely, the phenomenon that the optical fiber in the fiber coiling box is damaged by corrosion or ice ion electrolyzed water is caused by the metal components in the sealed cavity is avoided. Further, go up the circumference on chassis and set up seal structure to sealed water storage area, and then further improve the leakproofness of water storage area, thereby further avoid water or the ice infiltration row line board under-deck of water storage area.
Particularly, the sealing structure provided by the embodiment improves the sealing property between the upper chassis and the housing through the chassis sealing ring; through the elastic ring partially clamped in the groove, the friction strength between the sealing structure and the housing is increased, so that the strength and the sealing property of the optical cable joint box are further improved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a first schematic structural view of a cable junction box according to an embodiment of the present invention;
FIG. 2 is a second schematic view of a cable closure according to an embodiment of the present invention;
FIG. 3 is a front view of a cable closure provided by embodiments of the present invention;
fig. 4 is a side view of a cable junction box provided by an embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 to 4, schematic structural views of a cable junction box according to an embodiment of the present invention are shown. As shown, the optical fiber junction box includes: the device comprises a housing 1, a fiber coiling box 2 and a base 3; wherein, the cover 1 is covered on the base 3 to form a sealed cavity. Specifically, the housing 1 is an aluminum housing, which is provided over the base 3. In order to ensure the stability of the connection between the cover 1 and the base 3, it is preferable that the cover 1 and the base 3 are connected by the second connecting mechanism 4, so as to further ensure the stability of the connection between the cover 1 and the base, and further ensure the sealing performance of the sealed cavity. In order to further improve the sealing performance of the sealed cavity, a base sealing ring 7 is preferably arranged between the base 3 and the housing 1 for sealing the sealed cavity so as to prevent external accumulated water from permeating into the sealed cavity. Wherein, the base sealing ring 7 is a silicon rubber ring. The base 3 is provided with a light unit through hole 31 for installing the light unit pipe of the optical fiber, so that the light unit pipe penetrates into the sealed cavity from the light unit through hole 31.
With continued reference to fig. 1 to 4, the fiber coiling box 2 is disposed in the sealed cavity and is used for coiling and fixing the fusion splicing tail fiber of the optical fiber. Specifically, the material of the fiber coiling box 2 is ABS (Acrylonitrile Butadiene Styrene), which is a box in which a terminal protection optical cable laid by an optical cable and a tail fiber are welded, so as to coil the tail fiber and protect a joint.
With continued reference to fig. 1 to 4, an upper chassis 5 is arranged between the base 3 and the fiber coiling box 2 in the sealed cavity, the upper chassis 5 and the base 3 are arranged at intervals to form a water storage area between the upper chassis 5 and the base 3 in the sealed cavity, and the water or ice generated at low temperature penetrating from the base 3 into the sealed cavity is isolated into the water storage area, so that the defect that water vapor and condensation caused by the fact that the optical cable penetrates into and penetrates out of two holes and is not sealed tightly can be avoided, and the optical fiber of the fiber coiling box 2 is not affected by accumulated water or ice. Specifically, go up chassis 5 and set up between base 3 and housing 1 in the sealed cavity, its external diameter and housing 1 looks adaptation to realize going up the sealed of depositing the water district between chassis 5 and the base 3, improve the leakproofness of this terminal box, avoid depositing water and ice in the water district and permeate the interior of the calandria board cabin of 5 tops in the upper chassis, thereby avoid ponding or freeze and bring destruction for the fine box of dish promptly metal component in the sealed cavity corruption appears or the phenomenon that the ion electrolysis water that freezes caused the hydrogen damage to optic fibre in the fine box of dish. To ensure the stability of the upper chassis 5, it is preferable that the upper chassis 5 and the base 3 are connected by the first connecting mechanism 6 so as to fix the upper chassis 5 above the base 3 while ensuring the strength of the upper chassis 5. Further preferably, the first connecting mechanism 6 is a plurality of bolts uniformly arranged along the circumference of the upper chassis 5, so as to further ensure the strength of the upper chassis 5 and avoid non-uniform stress on the upper chassis 5.
With continued reference to fig. 1 to 4, the upper chassis 5 is provided with a sealing structure 8 along its circumference for sealing the water storage area. Specifically, the sealing structure 8 is arranged along the whole circumference of the upper chassis 5 so as to completely seal the gap between the upper chassis 5 and the housing 1, further improve the sealing performance of the water storage area, and prevent water or ice in the water storage area from permeating into the wire arranging plate cabin.
It can be obviously understood that the optical cable junction box provided by the embodiment is characterized in that the upper chassis 5 is arranged between the base 3 and the fiber coiling box 2 in the sealed cavity formed between the housing 1 and the base 3, so that the water storage area is formed between the upper chassis 5 and the base 3, water permeating into the sealed cavity from the base 3 or ice generated at low temperature is isolated into the water storage area, the defects that water vapor and condensation which are caused by the fact that an optical cable penetrates into and penetrates out of two holes and are not sealed tightly are overcome, the optical fiber of the fiber coiling box 2 is not affected by accumulated water or ice, namely, the water and the ice in the water storage area are prevented from permeating into the wire arranging board cabin above the upper chassis 5, and the phenomenon that the accumulated water or the ice damages the fiber coiling box, namely, corrosion of metal components in the sealed cavity or the phenomenon that the ionized electrolyzed water causes hydrogen damage to the optical fiber in the fiber coiling box is avoided. Further, go up the circumference of chassis 5 and set up seal structure 8 to sealed water storage area, and then further improve the leakproofness of water storage area, thereby further avoid water or the ice infiltration row line board under-deck of water storage area.
With continued reference to fig. 1-4, the second connection mechanism 4 includes: a connecting band 41 and a connecting piece 42; wherein, the connecting band 41 is arranged along the outer wall of the housing 1 so as to bind the housing 1. Specifically, the connection band 41 is a stainless steel band that covers the housing 1 on the base 3 along the outer wall of the housing 1. In order to enhance the stability of the connection between the connection strap 41 and the base 3, it is preferable that the ends of the connection strap 41 are each provided with a connector 42 so as to be connected with the base 3 through the connector 42, i.e. the cover 1 is fixed to the base 3 through the connection strap 41 and the connector 42. Wherein, the connecting band 41 is a stainless steel band, and the connecting piece 42 is a connecting piece such as a screw.
With continued reference to fig. 1 to 4, in order to enable the optical unit tubes of the optical fibers to pass through, preferably, a plurality of optical unit access holes 51 are formed in the upper chassis 5 for installing the optical unit tubes of the optical fibers, so that the optical unit tubes pass through the optical unit access holes 51 into the ceiling module. To facilitate the penetration of the light unit pipes, it is further preferred that a rubber cone (not shown) is provided in the light unit inlet hole 51, and a sealing nut 52 is provided outside the conical section thereof for compressing the rubber cone to seal the gap between the light unit pipes and the rubber cone so as to seal the water storage area. The light unit tube is not limited by rubber with a small hole and penetrates into the wiring board cabin from a hole position in the center of the rubber cone. In order to further improve the sealing performance of the water storage area, the sidewall of the upper chassis 5 is preferably provided with a groove (not shown) along the circumferential direction thereof for clamping the chassis sealing ring 81. Further preferably, the groove is provided along the entire circumference of the outer wall circumference of the upper chassis 5. Wherein, the groove is arranged at the middle position of the upper chassis 5 in the thickness direction.
With continued reference to fig. 1-4, the sealing structure 8 includes: a chassis seal 81 and an elastic ring 82; the elastic ring 82 and the chassis sealing ring 81 are arranged in parallel between the upper chassis 5 and the housing 1 along the thickness direction of the upper chassis 5, and part of the elastic ring 82 is clamped in a groove formed in the periphery 5 direction of the upper chassis. Specifically, the chassis seal 81 is a silicone rubber seal, and is disposed between the upper chassis 5 and the housing 1 so as to improve the sealing property therebetween. The elastic ring 82 and the chassis sealing ring 81 are arranged in parallel along the thickness direction of the upper chassis 5, part of the elastic ring and the chassis sealing ring are clamped in the groove, and part of the elastic ring and the chassis sealing ring are arranged between the upper chassis 5 and the housing 1, so that the friction strength between the sealing structure 8 and the housing 1 is increased through the friction between the elastic ring 82 and the inner wall of the housing 1, and the strength and the sealing property of the optical cable joint box are further improved. Preferably, the pan seal 81 is disposed above the elastomeric ring 82. The chassis sealing ring 81 is a silicone rubber ring, and the elastic ring 82 is an annular structure surrounded by silicon steel sheets.
It should be noted that the housing 1, the fiber coiling box 2, the base 3, the upper chassis 5 and the sealing structure 8 need to be processed by controlling the processing technology and reducing the positive tolerance, i.e. controlling the processing precision thereof to ensure the tightness of the optical cable junction box.
In conclusion, the optical cable junction box provided by the embodiment is characterized in that the upper chassis 5 is arranged between the base 3 and the fiber coiling box 2 in the sealed cavity formed between the housing 1 and the base 3, so that a water storage area is formed between the upper chassis 5 and the base 3, water permeating into the sealed cavity from the base 3 or ice generated at low temperature is isolated into the water storage area, the defects that water vapor and condensation caused by the fact that an optical cable penetrates into and penetrates out of two holes and is not sealed tightly can be overcome, the optical fiber of the fiber coiling box 2 is not affected by accumulated water or ice, namely, the water and the ice in the water storage area are prevented from permeating into the wire arranging plate cabin above the upper chassis 5, and the phenomenon that metal components in the sealed cavity are damaged due to the accumulated water or the ice, namely, the phenomenon that the hydrogen damage is caused to the optical fiber in the fiber coiling box by corrosion or the ice ion electrolyzed water is avoided. Further, go up the circumference of chassis 5 and set up seal structure 8 to sealed water storage area, and then further improve the leakproofness of water storage area, thereby further avoid water or the ice infiltration row line board under-deck of water storage area. In addition, the optical cable junction box is low in cost, high in processing technology controllability and easy to achieve high sealing performance.
In particular, in the sealing structure 8 provided in this embodiment, the sealing performance between the upper chassis 5 and the housing 1 is improved by the chassis sealing ring 81; the friction strength between the sealing structure 8 and the housing 1 is increased by the elastic ring 82 partially clamped in the groove, so that the strength and the sealing performance of the optical cable joint box are further improved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A cable junction box, comprising: the device comprises a housing, a fiber coiling box and a base; wherein,
the cover shell is covered on the base to form a sealed cavity;
the fiber coiling box is arranged in the sealed cavity and used for coiling and fixing the fusion splicing tail fiber of the optical fiber;
an upper chassis is arranged between the base and the fiber coiling box in the sealed cavity, and the upper chassis and the base are arranged at intervals so as to form a water storage area between the upper chassis and the base in the sealed cavity and isolate water or ice permeating into the sealed cavity from the base into the water storage area.
2. The cable junction box of claim 1,
and the upper chassis is provided with a sealing structure along the circumferential direction of the upper chassis and used for sealing the water storage area.
3. The cable junction box of claim 2, wherein the sealing structure comprises: a chassis sealing ring and an elastic ring; wherein,
the elastic ring and the chassis sealing ring are arranged between the upper chassis and the housing in parallel along the thickness direction of the upper chassis, and the elastic ring is clamped in a groove formed in the circumferential direction of the upper chassis.
4. The cable junction box of claim 3, wherein the groove is circumferentially disposed around the outer wall of the upper tray.
5. The cable junction box of any one of claims 1 to 4,
and the upper chassis is provided with a plurality of optical unit inlet holes for installing optical unit tubes of the optical fibers.
6. The cable junction box of claim 5,
and a rubber cone is arranged in the light unit inlet hole, and a sealing nut is arranged outside the conical section of the light unit inlet hole and used for sealing a gap between the light unit tube and the rubber cone.
7. The cable junction box of any one of claims 1 to 4,
the upper chassis is connected with the base through a first connecting mechanism.
8. The cable junction box of any one of claims 1 to 4,
and a base sealing ring is arranged between the base and the housing and used for sealing the sealing cavity.
9. The cable junction box of any of claims 1 to 4, wherein the cover and the base are connected by a second connection mechanism.
10. The cable junction box of claim 9, wherein the second connection mechanism comprises: the connecting band is arranged along the outer wall of the housing and the connecting piece is arranged at the end part of the connecting band; wherein,
the connecting band is connected with the base through the connecting piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811245406.0A CN109343184B (en) | 2018-10-24 | 2018-10-24 | An optical cable junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811245406.0A CN109343184B (en) | 2018-10-24 | 2018-10-24 | An optical cable junction box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109343184A true CN109343184A (en) | 2019-02-15 |
| CN109343184B CN109343184B (en) | 2022-04-29 |
Family
ID=65311632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811245406.0A Active CN109343184B (en) | 2018-10-24 | 2018-10-24 | An optical cable junction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109343184B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111679390A (en) * | 2020-07-15 | 2020-09-18 | 国网湖北省电力有限公司鄂州供电公司 | An intelligent optical fiber junction box |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1160608A2 (en) * | 2000-05-29 | 2001-12-05 | Fibot Holding Ltd. | Connection container for optical and/or copper mixed cables |
| CN101533134A (en) * | 2009-04-28 | 2009-09-16 | 江苏中天科技股份有限公司 | Terminal connection box for optical phase conductor |
| CN103984072A (en) * | 2014-05-23 | 2014-08-13 | 国家电网公司 | Self-healing waterproof electric aerial optical cable connector box |
| CN103995327A (en) * | 2014-01-10 | 2014-08-20 | 杭州华宏通信设备有限公司 | Optical cable splice box |
| CN104052013A (en) * | 2014-06-23 | 2014-09-17 | 江苏中天科技股份有限公司 | Junction box for through-flow wires |
| CN104765112A (en) * | 2014-11-17 | 2015-07-08 | 宁波余大通信技术有限公司 | Double-sealing optical cable joint box |
| CN205982780U (en) * | 2016-08-22 | 2017-02-22 | 江苏亨通海洋光网系统有限公司 | Can monitor extra large land cable splice box of electrical property |
| CN107167890A (en) * | 2017-06-29 | 2017-09-15 | 深圳市特发信息股份有限公司 | One kind can ice-melt cable splice closure |
| CN207718032U (en) * | 2017-12-06 | 2018-08-10 | 中国电力科学研究院有限公司 | A kind of insulating splice closure for line feeder fiber composite overhead ground wire |
| CN108565703A (en) * | 2018-06-11 | 2018-09-21 | 蒋莲莲 | Waterproof power distribution cabinet |
-
2018
- 2018-10-24 CN CN201811245406.0A patent/CN109343184B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1160608A2 (en) * | 2000-05-29 | 2001-12-05 | Fibot Holding Ltd. | Connection container for optical and/or copper mixed cables |
| CN101533134A (en) * | 2009-04-28 | 2009-09-16 | 江苏中天科技股份有限公司 | Terminal connection box for optical phase conductor |
| CN103995327A (en) * | 2014-01-10 | 2014-08-20 | 杭州华宏通信设备有限公司 | Optical cable splice box |
| CN103984072A (en) * | 2014-05-23 | 2014-08-13 | 国家电网公司 | Self-healing waterproof electric aerial optical cable connector box |
| CN104052013A (en) * | 2014-06-23 | 2014-09-17 | 江苏中天科技股份有限公司 | Junction box for through-flow wires |
| CN104765112A (en) * | 2014-11-17 | 2015-07-08 | 宁波余大通信技术有限公司 | Double-sealing optical cable joint box |
| CN205982780U (en) * | 2016-08-22 | 2017-02-22 | 江苏亨通海洋光网系统有限公司 | Can monitor extra large land cable splice box of electrical property |
| CN107167890A (en) * | 2017-06-29 | 2017-09-15 | 深圳市特发信息股份有限公司 | One kind can ice-melt cable splice closure |
| CN207718032U (en) * | 2017-12-06 | 2018-08-10 | 中国电力科学研究院有限公司 | A kind of insulating splice closure for line feeder fiber composite overhead ground wire |
| CN108565703A (en) * | 2018-06-11 | 2018-09-21 | 蒋莲莲 | Waterproof power distribution cabinet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111679390A (en) * | 2020-07-15 | 2020-09-18 | 国网湖北省电力有限公司鄂州供电公司 | An intelligent optical fiber junction box |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109343184B (en) | 2022-04-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101556792B1 (en) | Cryostat of superconducting cable | |
| CN103003610A (en) | An assembly and a method for providing in an opening sealing system | |
| CN101174010A (en) | Optical Fiber Composite Phase Line Splice Box and Its Connection Process | |
| WO2019237456A1 (en) | Multi-functional photoelectric separator for underwater terminal of submarine cable | |
| CN109343184B (en) | An optical cable junction box | |
| CN113608310B (en) | Splice Box | |
| US20210324973A1 (en) | Support devices for drop cables | |
| CN109944158A (en) | A cable-stayed beam end sealing structure | |
| RU2174638C1 (en) | Current insulation joint for pipe-line | |
| CN110212485A (en) | Three core high-voltage undersea cable connector boxs of one kind and its installation method | |
| CN214118142U (en) | Subsea housing assemblies and subsea sensors | |
| US11194110B2 (en) | Cable support devices and assemblies | |
| CN205787260U (en) | A kind of Large Copacity armored submarine optical cable fast connecting joint box | |
| US5727100A (en) | Device for connecting two electric aerial cables | |
| KR100693869B1 (en) | Arcinghorn Bonded Polymer Insulator | |
| CN102147514B (en) | Insulated compression resistant cylinder body of submarine optical cable facility, submarine optical cable facility and manufacturing method thereof | |
| CN212872997U (en) | Optical cable joint box | |
| CN118962910B (en) | A deep-sea optical cable dry-wet transition terminal joint and operation method thereof | |
| KR20170039671A (en) | Optical fiber penetration | |
| CN209248089U (en) | A kind of water proof type optical patchcord | |
| US12104724B2 (en) | Optimized connection assembly between two portions of a cryogenic line, comprising a double sealing barrier, a fluid expansion chamber and a detector for detecting the presence of the fluid in said chamber | |
| CN115308867B (en) | Down conductor of OPGW and method of adopting the down conductor insulated optical unit | |
| CN105629412A (en) | Submarine cable and land cable connecting device and connecting method thereof | |
| CN108957672A (en) | A kind of fixed fitting of optical cable | |
| JPS60262104A (en) | Insulator device for power transmission line |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |