CN208874266U - A kind of twisted polyethylene cable multilayer fusion transition joint - Google Patents
A kind of twisted polyethylene cable multilayer fusion transition joint Download PDFInfo
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- CN208874266U CN208874266U CN201821957013.8U CN201821957013U CN208874266U CN 208874266 U CN208874266 U CN 208874266U CN 201821957013 U CN201821957013 U CN 201821957013U CN 208874266 U CN208874266 U CN 208874266U
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- 230000007704 transition Effects 0.000 title claims abstract description 35
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 22
- -1 polyethylene Polymers 0.000 title claims abstract description 22
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 22
- 230000004927 fusion Effects 0.000 title claims description 14
- 239000004020 conductor Substances 0.000 claims abstract description 43
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229910052802 copper Inorganic materials 0.000 claims abstract description 42
- 239000010949 copper Substances 0.000 claims abstract description 42
- 238000009413 insulation Methods 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims abstract description 7
- 229910052751 metal Inorganic materials 0.000 claims abstract description 7
- 238000003032 molecular docking Methods 0.000 claims abstract description 5
- 238000003466 welding Methods 0.000 claims abstract description 4
- 239000000853 adhesive Substances 0.000 claims description 16
- 230000001070 adhesive effect Effects 0.000 claims description 16
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000000465 moulding Methods 0.000 claims description 12
- 238000005253 cladding Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000007592 spray painting technique Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims 2
- 235000015110 jellies Nutrition 0.000 claims 1
- 239000008274 jelly Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 abstract description 106
- 238000011084 recovery Methods 0.000 abstract description 3
- 239000011241 protective layer Substances 0.000 abstract description 2
- 239000011162 core material Substances 0.000 description 15
- 238000007789 sealing Methods 0.000 description 9
- 239000002390 adhesive tape Substances 0.000 description 5
- 238000009826 distribution Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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- Cable Accessories (AREA)
Abstract
The utility model discloses a kind of twisted polyethylene cable multilayers to fuse transition joint, two sections of cable connections are restored using welding, including being molded over interior semi-conductive layer that outside conductor thread core and both ends combine with two sections of exposed conductor shields respectively, being molded over outside interior semi-conductive layer, and both ends combined respectively with two sections of exposed main insulating layers insulating layer, be molded over outside insulating layer and outer semiconducting layer that both ends are combined with two sections of exposed insulation screens respectively, be coated on outside outer semiconducting layer and metal screen layer that both ends are connected with two sections of exposed copper shields respectively;It is coated on the protective layer that outside inner sheath, oversheath and both ends are connect with two sections of exposed sheaths respectively.The utility model is a kind of novel cable connector connection and insulation recovery form, and structure is similar with cable body structure, can effectively realize docking for cable and cable.
Description
Technical field
The utility model belongs to cable connector technical field more particularly to a kind of fusion of twisted polyethylene cable multilayer is intermediate
Connector.
Background technique
Cable connector is applied very extensive in power cable operation, it is mounted between cable and cable, has
Certain insulation and sealing function is a kind of attachment that two cables can be made to form continuous circuits, be in cable run not
The component part that can lack.The design of cable connector is answered structurally reasonable, is adapted to environment etc. and is required, if poor sealing, will make
Insulating performance of cable decline is obtained, the stability of cable run operation is influenced.
Ratio of the cable and junction malfunction in all kinds of failures can not be ignored, it not only will affect normal circuit operation, together
When will also result in the losses of manpower and material resources during repairing, therefore improve joint quality, reduce joint fault rate, be to reduce
Quantity is repaired, extends cable service life, the important means of operation of power networks reliability is provided.
Patent 201620010061.0 discloses one kind around packet mode transition joint cable, including two sections of cables, two sections of cables
It is provided with conductor thread core, main insulating layer, shielded layer from inside to outside, one end of each section of cable has stripped shielded layer, main semi-conductive layer
And main insulating layer, main semi-conductive layer, main insulating layer and conductor thread core are successively exposed outside, the adapter lead further include: conductor connection
Pipe, the both ends of conductor connecting tube are respectively sleeved at outside two sections of exposed conductor thread cores;First semi-conductive layer, the first semi-conductive layer packet
It overlays on outside conductor connecting tube;Second semi-conductive layer, the second semi-conductive layer are coated on outside two sections of exposed main semi-conductive layers;First absolutely
Edge layer, the first insulating layer are coated on outside the first semi-conductive layer, the second semi-conductive layer and exposed main insulating layer.The utility model mentions
What is supplied has good waterproof and insulate performance around packet mode transition joint cable.But still have conductive surface field distribution not
, there are the possibility of partial discharge.
Utility model content
The application aims to solve at least one of the technical problems existing in the prior art.For this purpose, the purpose of this utility model
One of be to provide a kind of twisted polyethylene cable multilayer fusion transition joint and preparation method thereof, which can effectively solve the problem that
Existing connector conductive surface field distribution is uneven, there are problems that partial discharge.
In order to solve the above technical problems, the utility model adopts the following technical solution:
A kind of twisted polyethylene cable multilayer fusion transition joint, including two sections of pre- docking cables, one end of each section of cable
Oversheath, armor, inner sheath, copper shield, insulation screen, main insulating layer, conductor shield have been stripped respectively, it is successively outer
Expose the armor being arranged in oversheath, the inner sheath being arranged in armor, copper shield, the copper being arranged in inner sheath
Insulation screen in shielded layer, the main insulating layer being arranged in insulation screen, the conductor shielding being arranged in main insulating layer
Layer and the conductor thread core being arranged in conductor shield, the conductor thread core melting welding docking of two sections of cables, it is characterised in that: in described
Between connector further include:
It is molded over outside conductor thread core and both ends is respectively the same as semiconductive in the connector that two sections of exposed conductor shields combine
Layer;
It is molded over outside interior semi-conductive layer, and the insulating layer that both ends are combined with two sections of exposed main insulating layers respectively;
It is molded over the outer semiconducting layer that outside insulating layer and both ends are combined with two sections of exposed insulation screens respectively;
It is molded over the metal screen layer that outside outer semiconducting layer and both ends are combined with two sections of exposed copper shields respectively.
Further, the shape of the interior semi-conductive layer is dolioform.
It further, further include being wrapped in that metal screen layer is outer and cable inner sheath of the both ends respectively with two sections of cables is mutually tied
The the first tack adhesive waterproof tape and the first PVC band outside the first tack adhesive waterproof tape closed.
It further, further include being wrapped in the first PVC mutually to tie with the cable jacket of two sections of cables respectively with outer and both ends
The the second tack adhesive waterproof tape and the 2nd PVC band outside the second tack adhesive waterproof tape closed.
Further, armor layer is wound in the 2nd PVC belt surface.
Further, two sections of cable metallic screens layers are connected to by the first tin-coated copper braid over braid and use the first constant force spring solid
It is scheduled on copper mesh and metal screen layer.
Further, the Steel armor of cable of two sections of cables is connected to by the second tin-coated copper braid over braid, and second tin-coated copper is compiled
The both ends of ribbon are fixed on exposed Steel armor of cable by the second constant force spring.
Further, the heating fusion molding of cladding insulating tape can be used in insulating layer or cladding insulating trip heating is fused into
Type.
Further, interior semiconductive is layer by layer using cladding semi-conductive tape or the fusion molding of semiconductive piece.
Further, the outer semiconducting layer coats semi-conductive tape or semiconductive sheetmolding using spraying semiconductive spray painting.
A kind of production method of twisted polyethylene cable multilayer fusion transition joint, includes the following steps:
(1) cable jacket, steel armour, inner sheath are stripped, coarse, cleaning oversheath fracture that steel armour surface is polished with file
Surface;
(2) two cables are handled: stripping cable of copper shield layer and insulation shield layer, is shelled since cable fracture site
It goes certain length cable floor to expose cable conductor, main insulating layer is processed into the pencil stub ramped shaped of smooth transition, is exposed simultaneously
The conductor shield of certain length, then two cables to be connected to are placed in same level, both threads core is set again later
In merging solder flux fixed in soldering appliance, welded;
(3) restore conductor shield: cleaning conductor shield port, the semiconductive of cladding and conductor shield same material
Band or semiconductive piece, it is at least isometrical with semi-conductive layer in cable body that semi-conductive tape forms outer diameter;
(4) restore main insulating layer: transition joint insulating layer is restored using insulating tape, and insulating layer and cable body insulating layer are flat
It slips over and crosses connection, surface of insulating layer installation insulation molding machine applies certain temperature and certain time is kept to carry out main insulating layer
Molding combine, polish after transition joint insulating layer is cooling its surface, remove tool marks, the pit on its surface etc. and lack
It falls into.Preferably, it can use laser and fusion connection successively carried out to insulating layer;
(5) restore insulation screen: the spray painting of connector surface of insulating layer spraying semiconductive or cladding semiconductive between in the cable
Piece heating molding coats semiconductive self-adhesive tape after dry, then on its surface;
(6) communication cable copper shield, recovery inner sheath: two cable of copper shield layers are connected to using copper mesh, recycle first
Tin-coated copper braid over braid and the first constant force spring fix copper mesh and the first tin-coated copper braid over braid, finally on the inner sheath of cable one end
It winds on tack adhesive waterproof tape to other end inner sheath and wrapped one layer of PVC band reinforces sealing, then will be indirect in threephase cable
Head bundled fixed;
(7) communication cable steel armour: Steel armor of cable is connected to using the second tin-coated copper braid over braid and the second constant force spring;
(8) restore oversheath: on one section of oversheath of cable wind tack adhesive waterproof tape to other end oversheath and around
It wraps one layer of PVC band and reinforces sealing, then in the fixed transition joint of its surface wrap armor layer.
Compared with prior art, the utility model has the beneficial effects that:
1, the utility model is since with multilayer joint protective layer, insulation performance and sealing waterproof performance are more preferable, use the longevity
Order that longer, applicable cable dimension range is bigger, and use is more flexible.And it can be used in some special occasions, such as electricity
The occasions such as the reserved insufficient or reducing cable butting of cable.
2, semi-conductive layer improves conductive surface field distribution in dolioform (arc is around shape layer) in the utility model,
Have the function of uniform electric field and drop bottom conductive surface field strength, improve the firing potential of cable local discharge, reduces hair
A possibility that raw partial discharge.
Detailed description of the invention
Fig. 1 is that the utility model twisted polyethylene cable multilayer fuses transition joint schematic diagram of internal structure;
Fig. 2 is that the utility model twisted polyethylene cable multilayer fuses transition joint interior waterproof schematic diagram;
Fig. 3 is that the utility model twisted polyethylene cable multilayer fuses waterproof schematic diagram outside transition joint.
Specific embodiment
The utility model is further described below in conjunction with the drawings and specific embodiments.
Referring to figures 1-3, a kind of twisted polyethylene cable transition joint, including two sections of cables, one end point of each section of cable
Oversheath 1, armor 2, inner sheath 3, copper shield 4, insulation screen 7, main insulating layer 8, conductor shield 9 have not been stripped,
Successively expose outside the insulation screen 7 being arranged in copper shield 4, the main insulating layer being arranged in insulation screen 78, setting
In the conductor shield 9 in main insulating layer 8 and the conductor thread core 11 being arranged in conductor shield 9, the conductor lines of two sections of cables
It is welded between core 11 by 10 butt-fusion of welding material identical with conductor thread core material, transition joint further includes interior semiconductive
Layer 18, insulating layer 12 and copper mesh.
Wherein, interior semi-conductive layer 18 be coated on that conductor thread core 11 is outer and both ends respectively with two sections of exposed conductor shields 9
It combines, exposed conductor thread core 11 is fully wrapped around in interior semi-conductive layer 18, so that conductor thread core surface be effectively reduced
Field strength keeps field distribution uniform.Especially, when interior 18 shape of semi-conductive layer is in dolioform, conductive surface electric field is not only improved
Distribution has the function of uniform electric field and drop bottom conductive surface field strength, and improves the initial discharge electricity of cable local discharge
Pressure reduces a possibility that partial discharge occurs.
The heating of insulating layer 12 be molded over that interior semi-conductive layer 18 is outer and both ends respectively with two sections of exposed 8 phase knots of main insulating layer
It closes, to play splendid insulation effect.
Preferably, even application has semiconductive to paint on 12 outer surface of insulating layer or heating is merged on surface of insulating layer
It is overmolded to have semiconductive piece, outer surface after shaping be coated with both ends respectively with two sections of exposed 7 phase knots of insulation screen
The semiconductive self-adhesive tape 13 of conjunction forms outer semiconducting layer, by painting or being coated partly in the outer even application semiconductive of insulating layer 12
Conductive sheet heating is molded over surface of insulating layer so that semiconductive self-adhesive tape 13 and 12 appearance face contact of insulating layer are good, avoid because
Conductive surface is rough and core is twisted the air gap generated and causes conductor and insulation that shelf depreciation occurs.
Copper mesh is coated on outside semiconductive self-adhesive tape 13 and both ends are combined with two sections of exposed copper shields 4 respectively, and two sections
Cable metallic screens layer is connected to by the first tin-coated copper braid over braid 6 and is fixed on copper mesh and metallic shield with the first constant force spring 5
On.
As a kind of preferred embodiment of the present embodiment, for the cable of outdoor laid, due to outdoor rugged environment, because
This, it is desirable that cable has good waterproof performance.In view of this, in twisted polyethylene cable multilayer fusion provided in this embodiment
Between connector further include being wrapped in that metal screen layer 4 is outer and both ends are combined with the cable inner sheath 3 of two sections of cables respectively first
Tack adhesive waterproof tape 16 and the first PVC band (not shown) outside the first tack adhesive waterproof tape.It is further
The waterproof sealing effect for enhancing connector can also wind the second tack adhesive waterproof tape with outer in the first PVC, and the second tack is anti-
16 both ends of glue band are combined with the cable jacket 1 of two sections of cables respectively, and is surrounded with outside the second tack adhesive waterproof tape
Two PVC band (not shown).
During laying, surface is easy to be worn cable.For avoid transition joint cable joint sealing
Waterproof layer wears and influences waterproof effect, and transition joint provided in this embodiment is on the basis of being arranged waterproof layer, then second
PVC belt surface winds one layer of armor layer 17 with excellent wear-resisting property and intensity.The Steel armor of cable of two sections of cables passes through second
Tin-coated copper braid over braid 15 is connected to, and the both ends of the second tin-coated copper braid over braid 15 are fixed on exposed cable by the second constant force spring 14
On steel armour.
It is envisioned that those skilled in the art, the transition joint of above-described embodiment is also applied to
Multicore cable connection.
It is as follows that the present embodiment twisted polyethylene cable multilayer fuses transition joint manufacturing process:
(1) cable jacket 1, steel armour 2, inner sheath 3 are stripped, coarse, cleaning oversheath that steel armour surface is polished with file
Fracture surface;
(2) two cables are handled: cable of copper shield layer 4 and insulation shield layer 7 are stripped, since cable fracture site
It peels off certain length cable floor and exposes cable conductor, main insulating layer 8 is processed into the pencil stub ramped shaped of smooth transition, is revealed simultaneously
The conductor shield 9 of certain length out, then two cables to be connected to are placed in same level, later again both threads core
11 are placed in soldering appliance fixed merging solder flux, are welded;Preferably, it can use laser to be welded.
(3) restore conductor shield 9: cleaning 9 port of conductor shield, cladding and the half of 9 same material of conductor shield
Conductive strips or semiconductive piece, it is at least isometrical with semi-conductive layer in cable body that semi-conductive tape forms outer diameter;
(4) restore main insulating layer 8: transition joint insulating layer is restored using insulating tape, and insulating layer 12 and cable body insulate
Layer is connected smoothly, and installation insulation molding machine in 12 surface of insulating layer applies certain temperature and certain time is kept to be led
The molding of insulating layer combines, and polishes after transition joint insulating layer is cooling its surface, removes tool marks, the pit on its surface
The defects of.Preferably, it can use laser and fusion connection successively carried out to insulating layer 12.
(5) restore insulation screen 7: the spray painting of connector surface of insulating layer spraying semiconductive or cladding semiconductive between in the cable
Piece heating molding coats semiconductive self-adhesive tape 13 after dry, then on its surface.
(6) communication cable copper shield 4, recovery inner sheath 3: by threephase cable transition joint bundled fixed, copper mesh is utilized
Two cable of copper shield layers are connected to, the first tin-coated copper braid over braid and the first constant force spring is recycled to weave copper mesh and the first tin-coated copper
Band is fixed, finally winds on the inner sheath of cable one end on tack adhesive waterproof tape 16 to other end inner sheath and one layer wrapped
PVC band reinforces sealing.
(7) communication cable steel armour: Steel armor of cable is connected to the second constant force spring 14 using the second tin-coated copper braid over braid 15.
(8) restore oversheath 1: on one section of oversheath 1 of cable wind tack adhesive waterproof tape to other end oversheath simultaneously
Wrapped one layer of PVC band reinforces sealing, then in the fixed transition joint of its surface wrap armor layer 17.
Above-described embodiment is only to clearly demonstrate examples for clearly illustrating the present invention, rather than the restriction to embodiment.
For those of ordinary skill in the art, other various forms of variations can also be made on the basis of the above description
Or it changes.Here without can not be also exhaustive to all embodiments.And the obvious variation thus amplified out
Or it changes among still in the protection scope of the utility model.
Claims (9)
1. a kind of twisted polyethylene cable multilayer fuses transition joint, including two sections of pre- docking cables, one end point of each section of cable
Oversheath, armor, inner sheath, copper shield, insulation screen, main insulating layer, conductor shield have not been stripped, it is successively exposed
The armor that is arranged in oversheath out, the inner sheath being arranged in armor, copper shield, the copper screen being arranged in inner sheath
Cover the insulation screen in layer, the main insulating layer being arranged in insulation screen, the conductor shield being arranged in main insulating layer
With the conductor thread core being arranged in conductor shield, the conductor thread core melting welding docking of two sections of cables, it is characterised in that: the centre
Connector further include:
It is molded over outside conductor thread core and both ends is respectively the same as semi-conductive layer in the connector that two sections of exposed conductor shields combine;
It is molded over outside interior semi-conductive layer, and the insulating layer that both ends are combined with two sections of exposed main insulating layers respectively;
It is molded over the outer semiconducting layer that outside insulating layer and both ends are combined with two sections of exposed insulation screens respectively;
It is molded over the metal screen layer that outside outer semiconducting layer and both ends are combined with two sections of exposed copper shields respectively;
The shape of the interior semi-conductive layer is dolioform.
2. twisted polyethylene cable multilayer according to claim 1 fuses transition joint, it is characterised in that: further include winding
Outside metal screen layer and the first tack adhesive waterproof tape that both ends are combined with the cable inner sheath of two sections of cables respectively and around
Wrap the first PVC band outside the first tack adhesive waterproof tape.
3. twisted polyethylene cable multilayer according to claim 2 fuses transition joint, it is characterised in that: further include winding
Outer and both ends are combined with the cable jacket of two sections of cables respectively in the first PVC band the second tack adhesive waterproof tape and wrapped
The 2nd PVC band outside the second tack adhesive waterproof tape.
4. twisted polyethylene cable multilayer according to claim 3 fuses transition joint, it is characterised in that: in the 2nd PVC
Belt surface is wound with armor layer.
5. twisted polyethylene cable multilayer according to claim 1-4 fuses transition joint, it is characterised in that: two
Section cable metallic screens layer is connected to by the first tin-coated copper braid over braid and is fixed on copper mesh and metallic shield with the first constant force spring
On layer.
6. twisted polyethylene cable multilayer according to claim 1-4 fuses transition joint, it is characterised in that: two
The Steel armor of cable of section cable is connected to by the second tin-coated copper braid over braid, and the both ends of the second tin-coated copper braid over braid are permanent by second
Power spring is fixed on exposed Steel armor of cable.
7. twisted polyethylene cable multilayer according to claim 1 fuses transition joint, it is characterised in that: the insulating layer
Using the heating fusion molding of cladding insulating tape or cladding insulating trip heating fusion molding.
8. twisted polyethylene cable multilayer according to claim 1 fuses transition joint, it is characterised in that: partly led in described
Electric layer is using cladding semiconductive film piece or the heating fusion molding of semiconductive jelly block.
9. twisted polyethylene cable multilayer according to claim 1 fuses transition joint, it is characterised in that: partly led outside described
Electric layer coats semi-conductive tape molding using spraying semiconductive spray painting, surface.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201821957013.8U CN208874266U (en) | 2018-11-26 | 2018-11-26 | A kind of twisted polyethylene cable multilayer fusion transition joint |
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Application Number | Priority Date | Filing Date | Title |
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CN201821957013.8U CN208874266U (en) | 2018-11-26 | 2018-11-26 | A kind of twisted polyethylene cable multilayer fusion transition joint |
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Publication Number | Publication Date |
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CN208874266U true CN208874266U (en) | 2019-05-17 |
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CN201821957013.8U Active CN208874266U (en) | 2018-11-26 | 2018-11-26 | A kind of twisted polyethylene cable multilayer fusion transition joint |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114050517A (en) * | 2021-09-24 | 2022-02-15 | 宁波东方电缆股份有限公司 | Manufacturing process of middle wrapping fusion type soft joint of three-core cable |
CN114825195A (en) * | 2021-01-21 | 2022-07-29 | 深圳市亿通电力科技有限公司 | Cross-linked polyethylene insulated cable connection method |
-
2018
- 2018-11-26 CN CN201821957013.8U patent/CN208874266U/en active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114825195A (en) * | 2021-01-21 | 2022-07-29 | 深圳市亿通电力科技有限公司 | Cross-linked polyethylene insulated cable connection method |
CN114825195B (en) * | 2021-01-21 | 2023-12-12 | 深圳市亿通电力科技有限公司 | Crosslinked polyethylene insulated cable connection method |
CN114050517A (en) * | 2021-09-24 | 2022-02-15 | 宁波东方电缆股份有限公司 | Manufacturing process of middle wrapping fusion type soft joint of three-core cable |
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CP03 | Change of name, title or address |
Address after: 410000 No. 223, tongzipo West Road, Lugu Industrial Park, high tech Development Zone, Changsha, Hunan Patentee after: Long Cable Technology Group Co.,Ltd. Country or region after: China Address before: No. 223 Tongzipo West Road, Lugu Industrial Park, High tech Zone, Changsha City, Hunan Province, 410205 Patentee before: CHANGLAN CABLE ACCESSORIES Co.,Ltd. Country or region before: China |