CN111313167A - Intermediate connection restoration body of cable body and application method thereof - Google Patents

Intermediate connection restoration body of cable body and application method thereof Download PDF

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Publication number
CN111313167A
CN111313167A CN202010248858.5A CN202010248858A CN111313167A CN 111313167 A CN111313167 A CN 111313167A CN 202010248858 A CN202010248858 A CN 202010248858A CN 111313167 A CN111313167 A CN 111313167A
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China
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layer
cable
sleeved
restoration
connecting block
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CN202010248858.5A
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Chinese (zh)
Inventor
肖李军
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Shenzhen Yitong Power Technology Co ltd
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Individual
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Priority to CN202010248858.5A priority Critical patent/CN111313167A/en
Publication of CN111313167A publication Critical patent/CN111313167A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/03—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations
    • H01R11/09—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts characterised by the relationship between the connecting locations the connecting locations being identical
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/14—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions

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  • Cable Accessories (AREA)

Abstract

The invention relates to a middle connection restoration body of a cable body and an application method thereof. The prosthesis comprises a conductor connecting part and a double-layer part. The multi-layer part is sleeved on the conductor connecting part, and the length of the conductor connecting part is smaller than that of the multi-layer part. The novel intermediate connection restoration of the cable body is used, so that the cable can be restored by connecting or welding the copper core of the cable with the first connecting block or the second connecting block of the conductor connecting part in the intermediate connection restoration of the cable body, and the problems of long operation time and complex restoration process in the cable restoration in the prior art are solved. The intermediate connection restoration of the cable body provided by the invention also has the characteristics of simple structure and convenience in use.

Description

Intermediate connection restoration body of cable body and application method thereof
Technical Field
The invention relates to the technical field of cable repair, in particular to a middle connection restoration of a cable body and an application method thereof.
Background
The cable is a transmission carrier of electric energy from a first place to a second place, along with the acceleration of urban construction and the improvement of the requirement on the whole environment, a plurality of newly-built urban areas and residential areas all adopt the cable, and the sheath of the cable is mainly made of a cross-linked polyethylene material with better moisture-proof and waterproof performances. The cable is used underground for a long time, so that damage caused by external force damage and overload operation is inevitable, the cable at the damaged fault point is cut off in the traditional method, and the cut-off part is repaired and connected by using a traditional cable middle accessory; however, there are many potential safety hazards in the way of connecting the traditional accessories, for example, after the cold-shrink cable intermediate accessory and the heat-shrink cable intermediate accessory are installed and powered off for operation, because the cable is operated underground for a long time, the middle head installed in the traditional intermediate accessory can be penetrated by water bubbles and moisture, which often causes breakdown and causes power failure accidents, the reasons are all the results caused by the poor sealing performance of the traditional cable intermediate accessory, and the cable intermediate connector accessories are subjected to failure reasons, so that the cable intermediate connection technology is researched and developed.
Disclosure of Invention
The invention aims to provide a middle connection restoration body of a cable body and an application method thereof, so as to meet the requirement that the cable normally runs in a severe underground environment for a long time and rarely has non-artificial faults, and effectively solve the defects and potential safety hazards existing in cable restoration in the existing cable connection technology.
In order to achieve the purpose, the invention provides the following scheme:
a mid-connection prosthesis of a cable body, comprising: a conductor connecting portion and a clad portion;
the multi-layer part is sleeved on the conductor connecting part and recovers from the inner layer to the outer layer according to the structure of the cable body, and the used material is consistent with the material of the cable body.
Optionally, the conductor connecting part includes a first connecting block, a second connecting block and an intermediate block;
an intermediate block is arranged between the first connecting block and the second connecting block, and the length of the first connecting block and the length of the second connecting block are both smaller than the length of the intermediate block.
Optionally, the intermediate block comprises a first inner semiconducting restoring layer, a first insulation restoring layer, a first semiconducting layer, a first copper mesh layer, a first insulation layer and a first protection layer;
one surface of the first inner semi-conductive recovery layer is attached to the second connecting block; the other surface of the first inner semi-conductive restoration layer is attached to one surface of the first insulation restoration layer; the other surface of the first insulation recovery layer is attached to one surface of the first semiconductor layer; the other surface of the first semi-conductive layer is attached to one surface of the first copper mesh layer; the other surface of the first copper mesh layer is attached to one surface of the first insulating layer; the other surface of the first insulating layer is attached to one surface of the first protective layer; the other surface of the first protective layer is attached to the first connecting block.
Optionally, the multiple layer part includes: a second inner semiconductive recovery layer, a second insulation recovery layer, a second semiconductive layer, a second copper mesh layer, and a second insulation layer;
the second inner semi-conductive restoration layer is sleeved on the conductor connecting part and is tightly attached to the conductor connecting part; the second insulation restoration layer is sleeved on the second inner semi-conductive restoration layer; the second semi-conducting layer is sleeved on the second insulation recovery layer; the second copper mesh layer is sleeved on the semi-conducting layer; the second insulating layer is sleeved on the second copper mesh layer.
Optionally, the cladding portion further includes: the heat-shrinkable layer is arranged on the first copper mesh layer;
the second protective layer is sleeved on the second insulating layer; the first waterproof layer is sleeved on the second protective layer; the third copper mesh layer is sleeved on the first waterproof layer; the third insulating layer is sleeved on the third copper mesh layer; the thermal shrinkage layer is sleeved on the third insulating layer; the second waterproof layer is sleeved on the heat-shrinkable layer; the armor layer is sleeved on the second waterproof layer; the third protective layer is sleeved on the armor layer.
Optionally, the material of the first protection layer, the material of the second protection layer, or the material of the third protection layer is polyvinyl chloride.
An application method of a middle connection prosthesis of a cable body comprises the following steps:
obtaining the model of a broken cable;
acquiring a middle connection restoration of the cable body according to the cable model; wherein the diameters of the first connecting block and the second connecting block in the conductor connecting part of the intermediate connection prosthesis of the cable body are equal to the diameter of the copper core of the broken cable;
and placing welding flux in the conductor connecting part of the middle connecting restoration of the cable body to weld the copper core of the broken cable.
Another application method of the intermediate connection prosthesis of the cable body comprises
Obtaining the model of the damaged cable;
acquiring a middle connection restoration of the cable body according to the cable model; wherein the diameters of the first connecting block and the second connecting block in the conductor connecting part of the intermediate connection prosthesis of the cable body are equal to the diameter of the copper core of the broken cable;
and inserting the copper core of the damaged cable into the conductor connecting part of the intermediate connection restoration of the cable body, bonding the copper core of the damaged cable with the first connecting block or the second connecting block in the conductor connecting part by adopting a conductive adhesive, and then wrapping the damaged cable and the intermediate connection restoration of the cable body by adopting polyvinyl chloride.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
according to the intermediate connection restoration of the cable body and the application method thereof provided by the invention, the intermediate connection restoration of the cable body with the same structure as the cable is prepared, so that the cable can be restored by only connecting or welding the copper core of the cable with the first connecting block or the second connecting block of the conductor connecting part in the intermediate connection restoration of the cable body, and the problems of long operation time and complex restoration process in the cable restoration in the prior art are further solved. The intermediate connection restoration of the cable body provided by the invention also has the characteristics of simple structure and convenience in use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural view of a cross-section of a mid-connection prosthesis of a cable body provided in an embodiment of the present invention;
FIG. 2 is a schematic structural view of a lateral section of a medial connection prosthesis of a cable body according to an embodiment of the present invention;
fig. 3 is a flowchart of an application method of the intermediate connection prosthesis of the cable body according to the embodiment of the present invention;
FIG. 4 is a flow chart of another method for applying a prosthesis connected between cables according to an embodiment of the present invention;
fig. 5 is a schematic diagram showing the result of repairing the cable by using the intermediate connection prosthesis of the cable body provided by the embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a middle connection restoration of a cable body and an application method thereof, and aims to solve the problems of long operation time and complex restoration process in cable restoration in the prior art.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Fig. 1 is a schematic structural view of a cross section of a medial connection prosthesis of a cable body provided in an embodiment of the present invention, fig. 2 is a schematic structural view of a lateral section of the medial connection prosthesis of the cable body provided in an embodiment of the present invention, and as shown in fig. 1 to 2, the medial connection prosthesis of the cable body includes: a conductor connecting part 1 and a multilayer part 2;
the double-layer part 2 is sleeved on the conductor connecting part 1, and the length of the conductor connecting part 1 is smaller than that of the double-layer part 2.
The conductor connecting part 1 comprises a first connecting block 11, a second connecting block 12 and an intermediate block 13;
an intermediate block 13 is arranged between the first connecting block 11 and the second connecting block 12, and the length of the first connecting block 11 and the length of the second connecting block 12 are both smaller than the length of the intermediate block 13.
In order to make the overall structure of the intermediate connection restoration of the cable body more similar to that of the cable, the intermediate block 13 comprises a first inner semi-conductive restoration layer, a first insulation restoration layer, a first semi-conductive layer, a first copper mesh layer, a first insulation layer and a first protection layer;
one surface of the first inner semi-conductive restoration layer is attached to the second connection block 12; the other surface of the first inner semi-conductive restoration layer is attached to one surface of the first insulation restoration layer; the other surface of the first insulation recovery layer is attached to one surface of the first semiconductor layer; the other surface of the first semi-conductive layer is attached to one surface of the first copper mesh layer; the other surface of the first copper mesh layer is attached to one surface of the first insulating layer; the other surface of the first insulating layer is attached to one surface of the first protective layer; the other surface of the first protection layer is attached to the first connection block 11.
As an embodiment of the present invention, the double layer part 2 may include: a second inner semiconductive recovery layer, a second insulation recovery layer, a second semiconductive layer, a second copper mesh layer, and a second insulation layer;
the second inner semi-conductive restoration layer is sleeved on the conductor connecting part 1 and is tightly attached to the conductor connecting part 1; the second insulation restoration layer is sleeved on the second inner semi-conductive restoration layer; the second semi-conducting layer is sleeved on the second insulation recovery layer; the second copper mesh layer is sleeved on the semi-conducting layer; the second insulating layer is sleeved on the second copper mesh layer.
The double layer part 2 may further include: the heat-shrinkable layer is arranged on the first copper mesh layer;
the second protective layer is sleeved on the second insulating layer; the first waterproof layer is sleeved on the second protective layer; the third copper mesh layer is sleeved on the first waterproof layer; the third insulating layer is sleeved on the third copper mesh layer; the thermal shrinkage layer is sleeved on the third insulating layer; the second waterproof layer is sleeved on the heat-shrinkable layer; the armor layer is sleeved on the second waterproof layer; the third protective layer is sleeved on the armor layer.
In order to reduce the cost of the intermediate connection restoration of the whole cable body, the material of the first protective layer, the material of the second protective layer or the material of the third protective layer in the invention can be polyvinyl chloride (PVC).
The specific functions of the layers of the intermediate connection prosthesis structure of the cable body provided by the invention are almost the same as the structure in the cable, and the specific introduction is as follows:
protective layer (black PVC is used in the invention): when the black PVC is coated on the outermost end of the cable, the black PVC mainly plays roles in protection, wear resistance and external force resistance. The black PVC plays a role in reinforcing between the waterproof layer and the insulating layer.
Armor: the invention adopts the armor belt to replace the steel armor of the cable, which is equivalent to the galvanized iron sheet of the cable body, and the efficacy of the invention is basically the same as that of the steel armor of the cable.
Waterproof layer: the cable has the important function of effectively preventing the outside water bubble cable from permeating into the cable structure to influence the operation of the cable.
Thermal shrinkage layer: the function effect on pyrocondensation layer plays the effect of holding fifth layer insulating tape after the shrink, can hold tightly, protect the function of not giving the pine off just simultaneously.
Insulating layer: the effect of enhancing the insulation level. Since the cable runs under heavy current and heavy current load, it is necessary to use multiple insulating layers to achieve multi-layer reinforcement.
Copper mesh layer: the function is to play a role in strengthening shielding and grounding protection.
Waterproof layer: the function is to reinforce the waterproofing action.
Semiconductive layer (including semiconductive tape and semiconductive paint): the function of the semiconducting tape is to equalize the electric field, in particular during operation, in order to achieve reduced losses and to prevent partial discharges. The semiconductive paint has the same function as the semiconductive tape and the application of this layer has a reinforcing effect.
Insulation recovery layer: according to the structure of the cable body, the material is the same as the raw material of the cable, and the function is the same.
First and second connecting blocks 12: the power transmission core part of the cable can butt joint two ends of a copper core of the cable, and the copper conductors are welded back in a seamless mode through materials reaching the melting point of copper at high temperature so as to meet the parameter requirement of current transmission in daily operation of the copper conductors.
Inner semi-conductive restoration layer: the effect is to reduce the loss and prevent partial discharge, playing a reinforcing role.
In addition, in order to be completely the same as the cable structure, the intermediate connection restoration of the cable body provided by the invention can further comprise an outer semi-conducting layer, a copper shield, an inner sheath, a steel armor and an outer sheath. All the above parts are the same parts as the parts on the damaged cable.
Wherein the outer semiconducting layer: this layer indicates that the layer is present on the body structure of the cable structure and is to be restored according to its structure.
Copper shielding: this is the original shielding layer on the cable structure, and the TMJ is restored by laying the copper mesh to meet the structural requirements.
An inner sheath: the layer is a structural layer in the cable body, and the function of the layer is a layer for protecting the internal structure on the structure of the cable body.
Steel armor: the second layer body structure from inside to outside of the cable mainly prevents the puncture and the impact of external force and achieves the buffering effect.
Outer sheath: the PVC material is the outermost layer of the cable structure layer, the body material is also the PVC material, the material used for recovering the layer is also the adhesive tape from PVC, and the effect of the original PVC material of the cable is achieved after the multi-layer coating.
Aiming at the provided intermediate connection prosthesis of the cable body, the invention also correspondingly provides an application method of the intermediate connection prosthesis of the cable body, as shown in fig. 3, the method comprises the following steps:
s31, obtaining the model of the broken cable;
s32, acquiring a middle connection restoration of the cable body according to the cable model; wherein the diameters of the first connecting block and the second connecting block in the conductor connecting part of the intermediate connection prosthesis of the cable body are equal to the diameter of the copper core of the broken cable;
s33, placing welding flux in the conductor connecting part of the middle connecting prosthesis of the cable body to weld the copper core of the broken cable.
The conductor of the existing traditional cable intermediate connector accessory adopts a copper connecting pipe for compression joint, and the degree and the size of a contact surface of the copper connecting pipe and the original conductor of the cable after compression joint and the material of the connecting pipe directly influence the current-carrying capacity; if the selection is not proper, the heating at the crimping part is caused, the insulation performance is damaged, and finally accidents are caused. And the copper core is pressed and connected, and cannot be bent, stressed and displaced. The direct welding Technology (TMJ) adopted by the invention adopts a heat release welding technology, and has the characteristics of equal diameter of conductors, low resistance, high strength, never aging of welding points and the like. Moreover, after the repair is finished, the cable at the repaired part can be bent, and the influence caused by cable dragging is not needed to be worried about.
In order to further reduce the complexity of cable repair, another method for applying the intermediate connection prosthesis to the cable body is provided, which specifically includes the steps of fig. 4
S41, obtaining the model of the damaged cable;
s42, acquiring a middle connection restoration of the cable body according to the cable model; wherein the diameters of the first connecting block and the second connecting block in the conductor connecting part of the intermediate connection prosthesis of the cable body are equal to the diameter of the copper core of the broken cable;
s43, inserting the copper core of the damaged cable into the conductor connecting part of the intermediate connection restoration of the cable body, bonding the copper core of the damaged cable with the first connecting block or the second connecting block in the conductor connecting part by using a conductive adhesive, and wrapping the damaged cable and the intermediate connection restoration of the cable body by using polyvinyl chloride.
In addition, the invention also provides a technology for repairing the intermediate connection of the cable body. The technology is a direct welding Technology (TMJ) of 10KV-20KV cables. The cable straight-through welding technology is based on the structural principle of crosslinked polyethylene cable, and is produced in the field of cut cable, and the cable is produced in the field by adopting cable raw materials and restoring connection according to the structural continuation layer. The cable straight-through welding technology is fused with a cable body structure to form a shielding body with consistent intrinsic characteristics, no stress cone and no movable interface.
The process of completing the intermediate connection repair of the cable body by adopting the cable straight-through welding technology specifically comprises the following steps:
the cable conductor is welded in an equal diameter mode by adopting a chemical heat release welding technology. In the welding process, a prepared cable conductor mold is adopted to fix a broken copper conductor, and welding flux is injected into the mold for welding. By adopting the exothermic welding technology, the welded copper conductor has the characteristics of low resistance, high strength and no aging of a welding point, can bear fault current impact and long-term heavy current operation, and is more durable and reliable. The cable at the repaired position can be bent through the welding of the copper core, so that the influence caused by cable dragging is not needed to be worried about.
Adopting a cable raw material, and recovering each layer of the cable layer by layer according to the original structure of the cable; in order to save raw materials and increase the flexibility of the repaired cable, the copper sheets of the copper shielding layer playing a role in shielding and grounding in the original cable are replaced by the copper net.
The concrete structure of the cable body repaired by the above technology is shown in fig. 5.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims (8)

1. A cable body intermediate connection repair technique, comprising: a conductor connecting portion and a clad portion;
the multi-layer part is sleeved on the conductor connecting part, and the length of the conductor connecting part is equal to that of the multi-layer part.
2. The cable body intermediate connection restoration according to claim 1, wherein the conductor connecting portion includes a first connecting block, a second connecting block, and an intermediate block;
an intermediate block is arranged between the first connecting block and the second connecting block, and the length of the first connecting block and the length of the second connecting block are both smaller than the length of the intermediate block.
3. The prosthesis of claim 2, wherein the intermediate piece comprises a first inner semi-conductive restoration layer, a first insulation restoration layer, a first semi-conductive layer, a first copper mesh layer, a first insulation layer, and a first protective layer;
one surface of the first inner semi-conductive recovery layer is attached to the second connecting block; the other surface of the first inner semi-conductive restoration layer is attached to one surface of the first insulation restoration layer; the other surface of the first insulation recovery layer is attached to one surface of the first semiconductor layer; the other surface of the first semi-conductive layer is attached to one surface of the first copper mesh layer; the other surface of the first copper mesh layer is attached to one surface of the first insulating layer; the other surface of the first insulating layer is attached to one surface of the first protective layer; the other surface of the first protective layer is attached to the first connecting block.
4. The prosthesis set forth in claim 1 wherein said multilayered portion comprises: a second inner semiconductive recovery layer, a second insulation recovery layer, a second semiconductive layer, a second copper mesh layer, and a second insulation layer;
the second inner semi-conductive restoration layer is sleeved on the conductor connecting part and is tightly attached to the conductor connecting part; the second insulation restoration layer is sleeved on the second inner semi-conductive restoration layer; the second semi-conducting layer is sleeved on the second insulation recovery layer; the second copper mesh layer is sleeved on the semi-conducting layer; the second insulating layer is sleeved on the second copper mesh layer.
5. The prosthesis set forth in claim 4 wherein said layered portion further comprises: the heat-shrinkable layer is arranged on the first copper mesh layer;
the second protective layer is sleeved on the second insulating layer; the first waterproof layer is sleeved on the second protective layer; the third copper mesh layer is sleeved on the first waterproof layer; the third insulating layer is sleeved on the third copper mesh layer; the thermal shrinkage layer is sleeved on the third insulating layer; the second waterproof layer is sleeved on the heat-shrinkable layer; the armor layer is sleeved on the second waterproof layer; the third protective layer is sleeved on the armor layer.
6. The prosthesis set forth in claim 3 or 5 wherein said material of said first protective layer, said material of said second protective layer, or said material of said third protective layer is polyvinyl chloride.
7. An application method of a middle connection prosthesis of a cable body is characterized by comprising the following steps:
obtaining the model of a broken cable;
obtaining a medial connectivity prosthesis of a cable body of any of claims 1-6 according to the cable model; wherein the diameters of the first connecting block and the second connecting block in the conductor connecting part of the intermediate connection prosthesis of the cable body are equal to the diameter of the copper core of the broken cable;
and placing welding flux in the conductor connecting part of the middle connecting restoration of the cable body to weld the copper core of the broken cable.
8. An application method of a middle connection prosthesis of a cable body is characterized by comprising the following steps
Obtaining the model of the damaged cable;
obtaining a medial connectivity prosthesis of a cable body of any of claims 1-6 according to the cable model; wherein the diameters of the first connecting block and the second connecting block in the conductor connecting part of the intermediate connection prosthesis of the cable body are equal to the diameter of the copper core of the broken cable;
and inserting the copper core of the damaged cable into the conductor connecting part of the intermediate connection restoration of the cable body, bonding the copper core of the damaged cable with the first connecting block or the second connecting block in the conductor connecting part by adopting a conductive adhesive, and then wrapping the damaged cable and the intermediate connection restoration of the cable body by adopting polyvinyl chloride.
CN202010248858.5A 2020-03-27 2020-03-27 Intermediate connection restoration body of cable body and application method thereof Pending CN111313167A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010248858.5A CN111313167A (en) 2020-03-27 2020-03-27 Intermediate connection restoration body of cable body and application method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010248858.5A CN111313167A (en) 2020-03-27 2020-03-27 Intermediate connection restoration body of cable body and application method thereof

Publications (1)

Publication Number Publication Date
CN111313167A true CN111313167A (en) 2020-06-19

Family

ID=71148268

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010248858.5A Pending CN111313167A (en) 2020-03-27 2020-03-27 Intermediate connection restoration body of cable body and application method thereof

Country Status (1)

Country Link
CN (1) CN111313167A (en)

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