CN106329268A - Wrapping and molding manufacturing method for middle connector of cross-linked polyethylene insulated power cable - Google Patents
Wrapping and molding manufacturing method for middle connector of cross-linked polyethylene insulated power cable Download PDFInfo
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- CN106329268A CN106329268A CN201610681847.XA CN201610681847A CN106329268A CN 106329268 A CN106329268 A CN 106329268A CN 201610681847 A CN201610681847 A CN 201610681847A CN 106329268 A CN106329268 A CN 106329268A
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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
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/005—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for making dustproof, splashproof, drip-proof, waterproof, or flameproof connection, coupling, or casing
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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
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/02—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for soldered or welded connections
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Abstract
The invention provides a wrapping and molding manufacturing method for a middle connector of a cross-linked polyethylene insulated power cable. The wrapping and molding manufacturing method comprises the following steps of step a, removing an outer sheath and a metal sleeve from a cable at two ends, and reserving a water-blocking buffer band; step b, performing cable preprocessing; step c, welding a wire core conductor; step d, recovering an inner semi-conductive layer: cleaning the port of the semi-conductive layer, and then wrapping the conductor with a semi-conductive layer wrapping band; step e, recovering an insulating layer; and step f, recovering an outer semi-conductive layer. The manufacturing method provided by the invention is convenient to operate; the manufactured middle connector and the cable body form an integrated structure; the electric field stress is uniform in distribution while the electric performance is stable; and the problem of a movable interface generated by different materials between the cable and the middle connector, and the problem of breakdown of the middle connector of the cable caused by partial electric field distortion of the insulating layer due to space accumulated charge are solved.
Description
Technical field
The present invention relates to the Technology set by cross-linked polyethylene insulated cable transition joint, it is adaptable to 500V to 48kV
The scene wrapped molding manufacture method of twisted polyethylene cable transition joint.
Background technology
The cable connector of tradition 500V to 48kV power cable with cross-linked polyethylene insulation middle part is transition joint, middle
Joint conductor uses conductor crimping and continues, and the mode of further insulating medium carries out the connection of cable and continues, and electric field can produce
Raw distortion, for the impact overcoming electric field distortion to be brought, need to carry out stress at cable intermediate joint main body cable conductor crimping
Pipe designs, and in cable, semi-conductive layer cut-off part needs to carry out stress cone design.
So far, the whole world in the cable between this technical field of joint have sizable achievement, respective design
Adnexa puts goods on the market the most, the Stress Control in these adnexaes, is to have been produced in advance in factory by specialized factory, the most prefabricated
Formula cable accessory, then scene combined complete at the scene is in cable main.This prefabricated type cable accessory, because of the knot of itself
Structure problem, can only weaken the distortion field intensity of uniform cable concentration and be unable to reach and the Electric Field Distribution state of former cable equivalence naturally
Eliminating the distortion of cable field intensity, and cannot solve to coordinate the problem of interfacial air gap between multiple dielectric, active interface includes
There are the complicated factors such as air gap, Wei Shui, impurity and insulation grease, easily cause air gap creeping discharge and spatial summation electric charge
And produce internal field's distortion, ultimately result in insulation breakdown, govern the safe operation of cable system.
For the problems referred to above, the present invention provide a kind of construct simple, with low cost, safe and reliable crosslinked polyetylene insulated
Cable intermediate joint wrapped molding manufacture method.
Summary of the invention
In order to solve problem in prior art, the invention provides a kind of power cable with cross-linked polyethylene insulation transition joint
Wrapped molding manufacture method, comprises the following steps:
Step a. removes the oversheath of two end cables, metallic sheath, retains the buffer strip that blocks water；
The cable pretreatment of step b.:
Process outer semiconducting layer: outer semiconducting layer fracture is vertical with cable axis, smooth, outer semiconducting layer incision position cutter
Cut out groove, the insulating barrier of adjacent outer semiconducting layer fracture is wound around pvc adhesive tape, is polishing to smooth by groove with sand paper, makes
Its even transition is the rounding conical surface, releases pvc adhesive tape；
Process insulating barrier: first insulating barrier fracture is exploited into pencil stub shape according to process, with the sand of different size
Cable insulation surface is polished flat smooth by paper, must not be with the defect such as cut and conductive particle；
Semiconductive layer in processing: semi-conductive layer position in exploitation sizing, retains semiconductive band position dimension, protects polishing
After good cable surface processing position, with blade of carving knife, conductor thread core is pricked limit paper and buckle and pull out, make exposed copper core section not have
Prick limit paper to exist, with the real good port of pvc adhesive tape reverse side bag, be inserted in parts: be inserted in heat-shrink tube, connector portions successively at two sections of cables
Part；
Step c. sealing wire core conductor；
Step d. recovers interior semi-conductive layer: clean semi-conductive layer port and conductor the most wrapped semiconductive band；
Step e. recovers insulating barrier；
Step f. recovers outer semiconducting layer.
As a further improvement on the present invention, described step a also includes the metallic sheath surface of cable is gone removing oxide layer, as
It is that armored cable need to remove steel armour and inner sheath, recovers metallic sheath and the armor of cable.
As a further improvement on the present invention, described step b, when processing outer semiconducting layer: outer semiconducting layer fracture cutter
Cutting out groove, edge of a knife direction, towards outer semiconducting layer, is wound around 3 layers of pvc adhesive tape on the insulating barrier of adjacent outer semiconducting layer fracture,
With 600# sand papering groove to flat smooth.
As a further improvement on the present invention, described step b, when processing insulating barrier: first by size exploitation sizing, then use
240# sand papering cable insulation surface makes it essentially smooth, then with 600# sand papering insulating barrier, should not in bruting process
Break axially and peripheral direction quickly moves sand paper, surface of insulating layer have bigger concavo-convex time, with sheet glass or wider sand paper elder generation
Polish again after doing partial trim.
As a further improvement on the present invention, described step b, semi-conductive layer in processing: first with 240# sand papering cable
Insulating barrier, may be seen indistinctly interior semi-conductive layer time use 600# sand papering again so that it is essentially smooth, without obvious cut and conduction
Granule.
As a further improvement on the present invention, described step c. sealing wire core conductor: make about two end cables, the most parallel
In same level, firm supporting does not walks, does not rocks, and two end cable concentric shafts differences can not be more than 0.2mm, is ready for
Good all soldering appliances, mould, welding powder, cooler, chiller, smog cap, after the distance of regulation core cross section, two ends mouth, and
Time install weld mold and be perpendicular on two end cable fractures of level, be evenly distributed fixing, lock weld mold, configuration is corresponding
The welding powder of cable specification, in weldering mould pod apertures upper ends sheet metal, igniting welding, cooling form removal, polishing cable conductor recover
Core is isometrical.
As a further improvement on the present invention, described step e. recovers insulating barrier: to semi-conductive layer in the cable processed
And the former cable insulation surface after exploitation process, use with cable insulation with the crosslinked polyetylene insulated sulfuration band of material, enter
After the wrapped recovery of row, installing insulation molding device and control instrument, preheating reaches to make crosslinked polyethylene vulcanize band melt temperature 170
DEG C time, maintain 45 minutes stipulated times to cross-link, make factory's insulation, interior semi-conductive layer and lapped insulation be melted into one absolutely
Edge is overall, removes, then cut type polishing after insulation molding device temperature cooling, and the type of cutting to be 6mm ＜ Φ according to outer insulation diameter Φ
The principle of ＜ 8mm carries out cutting type polishing, and insulating surface and outer semiconducting layer part finely to be polished, insulation and outer semiconducting layer
Transition to smooth out, and the trade mark of Sand paper for polishing must ascending use successively, if there being pit on insulating surface, it is necessary to by pit
Place expands polishing up and down, makes this depression seamlessly transit.
As a further improvement on the present invention, described step f. recovery outer semiconducting layer: the semiconductive of cable wherein one end
Layer port uniform application semiconductive varnish, then smear to the joint other end, after natural air drying, more uniformly painting touches semiconductive varnish, instead
Multiple uniformly painting is touched 3 times, and natural air drying waits that subsequent processing makes.
The invention has the beneficial effects as follows: the manufacture method of the present invention is easy to operate, made transition joint is with cable originally
The bodily form is into a single integrated structure；The electric performance stablity of electric field stress distribution, solves between cable and transition joint, because material is different
The active interface produced, it is to avoid hitting of the cable intermediate joint that space stored charge causes insulating barrier internal field to distort and causes
Wear problem.The present invention breaks through the world technical bottleneck in the industry of 500V to 48kV twisted polyethylene cable transition joint, it is adaptable to
500V to 48kV twisted polyethylene cable transition joint engineering site makes, the demand of breakdown repair.
Conductor uses exothermic weld, and the pull-off force of wire weld and the ratio of body are 91.2, its current capacity with
Wire is equal, and mechanical performance is similar to cable conductor, and pad is the most aging, can bear repeatability fault current impact；
Copper core welding, insulating body is melted to be combined into one, and molding joint cable is flexible, drag without having to worry about cable
Moving causes stress cone to shift；
Insulation uses the XLPE identical with cable insulation to recover, and makes molding insulation close without interface fused junction with cable insulation,
In structure formed the entirety consistent with cable and without obvious joint characteristic, dielectric strength is consistent with former cable, has higher
Electric insulation and stable endurance quality；
Insulating body is without interface, and water resistance is good；
Temperature humidity is required not limit by construction environment；
Overall dimensions and outside diameter of cable approximately equal, and the specific position of cable bend can be produced on, it is not take up too many sky
Between.
Accompanying drawing explanation
Fig. 1 is construction of cable schematic diagram of the present invention.
In figure, each component names is as follows:
Outer semiconductive layer 1, insulating barrier 2, interior semiconductive layer 3, conductor 4.
Detailed description of the invention
The present invention will be further described below in conjunction with the accompanying drawings.
The wrapped molding field fabrication method of 500V to 48kV twisted polyethylene cable transition joint, comprises the following steps:
Step a., according to processing technology requirement, removes the oversheath of two end cables, metallic sheath, retains the buffer strip that blocks water；Will
The metallic sheath surface clean of cable is clean, and metallic sheath port file file removes corner burr.
The cable pretreatment of step b.:
Outer semiconductive layer surface is managed: outer semiconductive layer fracture should be vertical with cable axis, smooth, outer semiconductive layer incision position 30mm
In the range of cut out groove (edge of a knife direction towards outer semiconductive layer, in order to avoid incised wound insulating barrier) with cutter, adjacent outer semiconductive layer fracture is absolutely
It is wound around 3 layers of pvc adhesive tape in edge layer, with 600# sand papering groove to smooth so that it is even transition is the rounding conical surface, releases pvc
Adhesive tape.
Surface of insulating layer processes: first by size exploitation sizing, then make its base with 240# sand papering cable insulation surface
This is smooth, then with 600# sand papering insulating barrier, makes surface of insulating layer without obvious cut and conductive particle.(bruting process
In should be constantly axially and peripheral direction quickly move sand paper, it is to avoid polishing for a long time at local location, to form insulating surface recessed
Fall into, as surface of insulating layer have bigger concavo-convex time, useable glass sheet or wider sand paper are polished after first doing partial trim again).Finally
Polishing insulating barrier is to flat smooth.
Interior semiconductive layer surface processes: semi-conductive layer position in exploitation sizing, retains semiconductive band position dimension.(note 3:
First with 240# sand papering cable insulation, may be seen indistinctly interior semi-conductive layer time make it essentially smooth with 600# sand papering again,
Without obvious cut and conductive particle) protect the cable surface processing position polished after, with blade of carving knife conductor lines
Core bundle limit paper is buckled and is pulled out, and makes exposed copper core section not prick limit paper, with the real good port of PVC tape reverse side bag.Intussusceptum
Part: be inserted in the heat-shrink tube of the specification of works that is consistent at two sections of cables successively, the joint component such as dust-proof barrier part.
Step c. core conductor welds: make about two end cables, the most parallel in same level, and firm supporting is not walked
Position, do not rock, two end cable concentric shafts difference can not be more than 0.2mm.It is then ready for all soldering appliances, mould, welding powder, fall
Temperature device, chiller, smog cap.After the distance of regulation core cross section, two ends mouth, install weld mold in time and be perpendicular to level
Two end cable fractures on, be evenly distributed fixing, lock weld mold.The welding powder of configuration respective cable specification, at weldering mould water conservancy diversion
Hole upper ends sheet metal.Igniting welding, cooling form removal, polishing cable conductor recover core isometrical.(note 5: weld metal should be thin
The defects such as close flawless, slag inclusion and surface pores)
Step d. is partly led in recovering: cleaning semiconductive port and conductor the most wrapped semiconductive band.
Step e. recovers insulating barrier: at factory's insulating surface of external screen at former cable inner shield and stripping, uses and cable
Insulate the crosslinked polyetylene insulated sulfuration band with material, after carrying out wrapped recovery, by filling insulation molding device and controlling instrument, and preheating
When reaching to make crosslinked polyethylene sulfuration band melt temperature 190 DEG C, maintain 1 hour stipulated time to cross-link, make factory exhausted
Edge, inner shield are melted into an insulation entirety with lapped insulation, remove after insulation molding device temperature cooling, and type of then cutting is beaten
Mill.The type of cutting to carry out cutting type polishing, insulating surface and external shield portion according to the principle that outer insulation diameter Φ is 6mm ＜ Φ ＜ 8mm
Dividing cable finely to polish, insulation and external shield transition to smooth out.The trade mark of Sand paper for polishing must ascending use successively.As
Really there is pit in insulating surfaces, it is necessary to pit is expanded up and down polishing, make this depression seamlessly transit.
Step f. is recovered outer half and is led (external screen): the semiconductive port uniform application semiconductive varnish of cable wherein one end, then
Uniformly it is coated with again after the joint other end smears natural air drying and touches semiconductive varnish and be the most uniformly coated with and touch 3 natural air dryings and wait next work
Sequence makes.
Above content is to combine concrete preferred implementation further description made for the present invention, it is impossible to assert
Being embodied as of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of present inventive concept, it is also possible to make some simple deduction or replace, all should be considered as belonging to the present invention's
Protection domain.
Claims (8)
1. a power cable with cross-linked polyethylene insulation transition joint wrapped molding manufacture method, it is characterised in that: include following
Step:
Step a. removes the oversheath of two end cables, metallic sheath, retains the buffer strip that blocks water；
The cable pretreatment of step b.:
Process outer semiconducting layer: outer semiconducting layer fracture is vertical with cable axis, smooth, and outer semiconducting layer incision position cutter cuts out
Groove, is wound around pvc adhesive tape on the insulating barrier of adjacent outer semiconducting layer fracture, is polishing to smooth by groove with sand paper so that it is all
Even transition is the rounding conical surface, releases pvc adhesive tape；
Process insulating barrier: first insulating barrier fracture is exploited into pencil stub shape according to process, will with the sand paper of different size
Cable insulation surface polishes flat smooth, must not be with the defect such as cut and conductive particle；
Semiconductive layer in processing: semi-conductive layer position in exploitation sizing, retains semiconductive band position dimension, protects and polished
After cable surface processing position, with blade of carving knife, conductor thread core is pricked limit paper and buckle and pull out, make exposed copper core section not prick limit
Paper exists, and with the real good port of pvc adhesive tape reverse side bag, is inserted in parts: be inserted in heat-shrink tube, joint component successively at two sections of cables；
Step c. sealing wire core conductor；
Step d. recovers interior semi-conductive layer: clean semi-conductive layer port and conductor the most wrapped semiconductive band；
Step e. recovers insulating barrier；
Step f. recovers outer semiconducting layer.
Power cable with cross-linked polyethylene insulation transition joint the most according to claim 1 wrapped molding manufacture method, it is special
Levying and be: described step a also includes the metallic sheath surface of cable is gone removing oxide layer, armored cable need to remove steel armour and interior in this way
Sheath, recovers metallic sheath and the armor of cable.
Power cable with cross-linked polyethylene insulation transition joint the most according to claim 1 wrapped molding manufacture method, it is special
Levy and be: described step b, when processing outer semiconducting layer: outer semiconducting layer fracture cutter cuts out groove, and edge of a knife direction is towards outer half
Conductive layer, is wound around 3 layers of pvc adhesive tape on the insulating barrier of adjacent outer semiconducting layer fracture, with 600# sand papering groove to smooth
Smooth.
Power cable with cross-linked polyethylene insulation transition joint the most according to claim 1 wrapped molding manufacture method, it is special
Levy and be: described step b, when processing insulating barrier: first by size exploitation sizing, then with 240# sand papering cable insulation table
Face makes it essentially smooth, then with 600# sand papering insulating barrier, should constantly axially quickly move with peripheral direction in bruting process
Dynamic sand paper, surface of insulating layer have bigger concavo-convex time, polish again after first doing partial trim with sheet glass or wider sand paper.
Power cable with cross-linked polyethylene insulation transition joint the most according to claim 1 wrapped molding manufacture method, it is special
Levy and be: described step b, semi-conductive layer in processing: first with 240# sand papering cable insulation, may be seen indistinctly interior semiconductive
600# sand papering is used again so that it is essentially smooth, without obvious cut and conductive particle during layer.
Power cable with cross-linked polyethylene insulation transition joint the most according to claim 1 wrapped molding manufacture method, it is special
Levy and be: described step c. sealing wire core conductor: make about two end cables, the most parallel in same level, support jail
Gu do not walk, do not rock, two end cable concentric shafts difference can not be more than 0.2mm, be then ready for all soldering appliances, mould,
Welding powder, cooler, chiller, smog cap, after the distance of regulation core cross section, two ends mouth, install weld mold vertical in time
On two end cable fractures of level, being evenly distributed fixing, lock weld mold, the welding powder of configuration respective cable specification, in weldering
Mould pod apertures upper ends sheet metal, igniting welding, cooling form removal, polishing cable conductor recover core isometrical.
Power cable with cross-linked polyethylene insulation transition joint the most according to claim 1 wrapped molding manufacture method, it is special
Levy and be: described step e. recovers insulating barrier: to the former cable insulation after semi-conductive layer in the cable processed and exploitation process
Surface, uses with cable insulation with the crosslinked polyetylene insulated sulfuration band of material, after carrying out wrapped recovery, installs insulation molding
Device and control instrument, when preheating reaches to make crosslinked polyethylene sulfuration band melt temperature 170 DEG C, maintain 45 minutes stipulated times to enter
Row crosslinking, makes factory's insulation, interior semi-conductive layer be melted into an insulation entirety with lapped insulation, and molding device temperature to be insulated is cold
Removing the most afterwards, then cut type polishing, the type of cutting to carry out cutting type polishing according to the principle that outer insulation diameter Φ is 6mm ＜ Φ ＜ 8mm,
Insulating surface and outer semiconducting layer part finely to be polished, and insulation and outer semiconducting layer transition to smooth out, the trade mark of Sand paper for polishing
Ascending must using successively, if there being pit on insulating surface, it is necessary to pit is expanded up and down polishing, making this depression put down
Slip over and cross.
Power cable with cross-linked polyethylene insulation transition joint the most according to claim 1 wrapped molding manufacture method, it is special
Levy and be: described step f. recovery outer semiconducting layer: the semi-conductive layer port uniform application semiconductive of cable wherein one end
Paint, then smear to the joint other end, after natural air drying, more uniformly semiconductive varnish is touched in painting, is repeatedly uniformly coated with and touches 3 times, natural air drying
Wait subsequent processing makes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610681847.XA CN106329268B (en) | 2016-08-17 | 2016-08-17 | The wrapped molding preparation method of power cable with cross-linked polyethylene insulation transition joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610681847.XA CN106329268B (en) | 2016-08-17 | 2016-08-17 | The wrapped molding preparation method of power cable with cross-linked polyethylene insulation transition joint |
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| CN106329268A true CN106329268A (en) | 2017-01-11 |
| CN106329268B CN106329268B (en) | 2017-11-28 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106848990A (en) * | 2017-01-13 | 2017-06-13 | 刘国晓 | A kind of docking calculation of 10kV twisted polyethylene cables |
| CN107123956A (en) * | 2017-05-15 | 2017-09-01 | 深圳科创新源新材料股份有限公司 | A kind of intermediate joint of electric cable welding and renovation technique |
| CN107465154A (en) * | 2017-08-24 | 2017-12-12 | 长园电力技术有限公司 | Crosslinking polyethylene-insulated cable insulation shields isolating joint and its is molded into manufacture craft |
| CN108988230A (en) * | 2018-07-31 | 2018-12-11 | 国网福建省电力有限公司 | Cable semi-conductive fracture chamfered method |
| CN109286083A (en) * | 2018-09-28 | 2019-01-29 | 乐清市华仪电缆附件有限公司 | A kind of three-core cable welded joint and its mounting process |
| CN109616962A (en) * | 2018-12-21 | 2019-04-12 | 吴江市华鼎热缩制品有限公司 | A kind of hot melten type cable centre connection mounting process |
| CN109818161A (en) * | 2019-01-14 | 2019-05-28 | 和瑞达(广州)电力服务有限公司 | A kind of recovery 10kV and 27.5kV cable body melt connection method |
| CN110350376A (en) * | 2019-07-16 | 2019-10-18 | 长园电力技术有限公司 | Cross-inked polyethylene power cable middle connector and production method |
| CN112234532A (en) * | 2020-11-04 | 2021-01-15 | 广东电网有限责任公司广州供电局 | Polypropylene 220kV molded cable connector and manufacturing method thereof |
| CN112952516A (en) * | 2021-01-29 | 2021-06-11 | 开封市欧迪电力设备工程有限公司 | High-voltage crosslinked polyethylene insulated cable joint modularization recovery method |
| CN113744932A (en) * | 2021-09-08 | 2021-12-03 | 黄石市深博电气有限公司 | Process method for recovering welding type cable outer semi-conductive layer |
| CN113937589A (en) * | 2021-11-05 | 2022-01-14 | 华能安阳能源有限责任公司 | Cable connection construction process |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106848990B (en) * | 2017-01-13 | 2018-01-12 | 刘国晓 | A kind of docking calculation of 10kV twisted polyethylene cables |
| CN106848990A (en) * | 2017-01-13 | 2017-06-13 | 刘国晓 | A kind of docking calculation of 10kV twisted polyethylene cables |
| CN107123956A (en) * | 2017-05-15 | 2017-09-01 | 深圳科创新源新材料股份有限公司 | A kind of intermediate joint of electric cable welding and renovation technique |
| CN107465154B (en) * | 2017-08-24 | 2023-01-24 | 长园电力技术有限公司 | Insulation shielding isolation joint of crosslinked polyethylene cable and injection molding manufacturing process thereof |
| CN107465154A (en) * | 2017-08-24 | 2017-12-12 | 长园电力技术有限公司 | Crosslinking polyethylene-insulated cable insulation shields isolating joint and its is molded into manufacture craft |
| CN108988230A (en) * | 2018-07-31 | 2018-12-11 | 国网福建省电力有限公司 | Cable semi-conductive fracture chamfered method |
| CN109286083A (en) * | 2018-09-28 | 2019-01-29 | 乐清市华仪电缆附件有限公司 | A kind of three-core cable welded joint and its mounting process |
| CN109616962A (en) * | 2018-12-21 | 2019-04-12 | 吴江市华鼎热缩制品有限公司 | A kind of hot melten type cable centre connection mounting process |
| CN109818161A (en) * | 2019-01-14 | 2019-05-28 | 和瑞达(广州)电力服务有限公司 | A kind of recovery 10kV and 27.5kV cable body melt connection method |
| CN110350376A (en) * | 2019-07-16 | 2019-10-18 | 长园电力技术有限公司 | Cross-inked polyethylene power cable middle connector and production method |
| CN112234532A (en) * | 2020-11-04 | 2021-01-15 | 广东电网有限责任公司广州供电局 | Polypropylene 220kV molded cable connector and manufacturing method thereof |
| CN112952516A (en) * | 2021-01-29 | 2021-06-11 | 开封市欧迪电力设备工程有限公司 | High-voltage crosslinked polyethylene insulated cable joint modularization recovery method |
| CN113744932A (en) * | 2021-09-08 | 2021-12-03 | 黄石市深博电气有限公司 | Process method for recovering welding type cable outer semi-conductive layer |
| CN113937589A (en) * | 2021-11-05 | 2022-01-14 | 华能安阳能源有限责任公司 | Cable connection construction process |
| CN113937589B (en) * | 2021-11-05 | 2024-03-19 | 华能安阳能源有限责任公司 | Cable connection construction process |
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