CN106848990B - A kind of docking calculation of 10kV twisted polyethylene cables - Google Patents
A kind of docking calculation of 10kV twisted polyethylene cables Download PDFInfo
- Publication number
- CN106848990B CN106848990B CN201710023513.8A CN201710023513A CN106848990B CN 106848990 B CN106848990 B CN 106848990B CN 201710023513 A CN201710023513 A CN 201710023513A CN 106848990 B CN106848990 B CN 106848990B
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- Prior art keywords
- cable
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- insulating layer
- peelled
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Classifications
-
- 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
- H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable
- H02G15/1806—Heat shrinkable sleeves
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/02—Soldered or welded connections
- H01R4/021—Soldered or welded connections between two or more cables or wires
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/02—Soldered or welded connections
- H01R4/023—Soldered or welded connections between cables or wires and terminals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
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- Processing Of Terminals (AREA)
Abstract
The present invention relates to a kind of docking calculation of 10kV twisted polyethylene cables, it is concretely comprised the following steps：First the two sections of cables that need to be docked are alignd, cable jacket, steel sheath, inner restrictive coating is peelled off successively from each port and removes cable filler；Radiation heat-shrinkable pipe is inserted in an end cable, used after cable butting has made；Copper shield, semi-conductive layer are shelled successively from each port again；The copper crimping length of tube of measurement connecting cable core simultaneously takes its 1/2 length to add 5mm as the foundation for needing strip cable major insulation to expose conductor wire core, cable main insulating layer is peelled off from port according to this length, and major insulation incision position is cut to long 60mm pencil head shapes, expose 5mm interior semi-conductive layer；Conductor wire core is attached；The radiant heat draw being inserted in finally is subjected to oversheath system bag pyrocondensation at transition joint.The present invention has more excellent moisture resistance, water proofing property, insulating properties compared with conventional method.
Description
Technical field
The invention belongs to field of electromechanical technology, more particularly to a kind of docking calculation of 10kV twisted polyethylene cables.
Background technology
In power industry, when carrying out cable butting, generally use high-voltage insulating tube carries out pyrocondensation or the processing of shrinkage overlap joint,
, can be in cable master in the situation of making moist through long charged operation but above-mentioned processing method is when there is air to be not easy to exclude in pipe
Insulating surface forms tree dsicharge, easily causes cable phase insulation puncture short and shorted to earth failure；Insulation tube simultaneously
With poorly sealed after aging at cable bond, the water of moisture or periphery in air immerses cable and causes cable phase insulation to puncture
Short circuit and shorted to earth failure；And the splice insulation performance handled with insulation tube is not high, easily causes potential safety hazard.
The content of the invention
It is an object of the invention to provide a kind of docking calculation for being used for 10kV twisted polyethylene cables easily to operate.
A kind of docking calculation of 10 kV twisted polyethylene cables, it is concretely comprised the following steps：
（1）The two sections of cables that need to be docked are alignd, 600mm cable jacket are peelled off from each port, from each port
550mm cable protection steel sheath is peelled off, 500mm inner restrictive coating is peelled off from each port and removes cable filler；
（2）Radiation heat-shrinkable pipe is inserted in an end cable, used after cable butting has made；
（3）300mm copper shield is peelled off from each port again, 250mm semi-conductive layer is peelled off from each port；Measurement
The copper of connecting cable core crimps length of tube and taking its 1/2 length to add 5mm to be used as needs strip cable major insulation to expose conductor wire
The foundation of core, cable main insulating layer is peelled off from port according to this length, and major insulation incision position is cut to long 60mm pencil capitiform
Shape, expose 5mm interior semi-conductive layer；
（4）Conductor wire core is attached：Connected mode has two kinds：The first is to dock cable by two sections with copper aluminium hydraulic pressed connecting pipe
Isopen core carries out crimping connection；The second way is to fix docking core with bonding die, and 100 grams of copper agent are reduced into welding powder adds
Enter in mould, sequentially add 20 grams of gunpowder, lighting gunpowder with burning torch allows docking core with welding powder through high caused by powder burning
Warm rapid melting is integrated, and is removed mould and is removed unnecessary melt body, fusion point is polished into the fusion point with core with circularity；
（5）The seamless winding parcel connection of semi-conductive layer semiconductor band in the 5mm that will expose at butted line pencil head；With
The main insulating layer of two sections of cables is carried out overlap joint winding parcel by radiant crosslinked polyethylene band；Radiation is wound with polyamide tape again to hand over
Connection polyethylene layer is fused；Need to use circulating chilled water soft tube winding original core main insulating layer before welding, in heating process
The middle heat passed on main insulating layer passes, and avoids damaging main insulating layer；
（6）The polishing of crosslinked polyethylene main insulating layer circularity is carried out after removing polyamide tape, and with half after high level of cleanliness
Semiconductor layer outside conductor band or the gapless connection main insulating layer of semiconductor liquid；With the inserts removed carry out three-phase core it
Between space fill, between carrying out both ends inner sheath with adhesive waterproof tape it is seamless winding overlap joint connect；Fixed with magnetism-free stainless steel snap ring
Copper braid over braid carries out the steel sheath connection of two end cables；Unified winding parcel at cable connector is carried out with pitch nylon tape, with solid
Determine cable molding shape, strengthen cable jacket mechanical strength；Treat to pull on the spoke being inserted in before after the completion of the solidification of pitch nylon tape
Penetrate heat-shrink tube and carry out oversheath system bag pyrocondensation at transition joint.
The welding carries out heating melt processed using 800 degree of heat guns to polyimide layer.
The welding is wrapped in outside polyimide layer using 200 degree of heating heating tapes, and bag heat-preservation cotton is powered 1 hour and carried out
The heated at constant temperature processing of 180 degree.
The present invention has advantages below compared with conventional method：（1）With more excellent humidity resistance；（2）Possess certain
Water proofing property；（3）Insulating resistance value is greatly improved.
Brief description of the drawings
Fig. 1 is the structural representation of PE cable docking calculation of the present invention；
Fig. 2 is the docking partial structural diagram of PE cable docking calculation of the present invention；
Fig. 3 is the overall structure diagram using cable after the completion of present invention docking.
Embodiment
The present invention is described in detail below in conjunction with the accompanying drawings.
As shown in Figures 1 to 3, a kind of docking calculation of 10 kV twisted polyethylene cables, it is concretely comprised the following steps：
（1）The two sections of cables that need to be docked are alignd, 600mm cable jacket 1 are peelled off from each port, from each port
550mm cable protection steel sheath 2 is peelled off, 500mm inner restrictive coating 3 is peelled off from each port and removes cable filler；
（2）Radiation heat-shrinkable pipe is first inserted in an end cable, used after cable butting has made；
（3）300mm copper shield 4 is shelled from each port again, 250mm semi-conductive layer 5 is peelled off from each port；Measurement
The copper crimping length of tube of connecting cable core, which takes its 1/2 length to add 5mm to be used as, needs strip cable major insulation to expose conductor wire core
Foundation, cable main insulating layer 6 is peelled off from port according to this length, and major insulation incision position is cut to long 60mm pencil head shapes
Expose 5mm interior semi-conductive layer 7；
（4）Conductor wire core is attached：Connected mode has two kinds：The first is to dock cable by two sections with copper aluminium hydraulic pressed connecting pipe
Isopen core carries out crimping connection；The second way is to fix docking core with bonding die, and 100 grams of copper agent are reduced into welding powder adds
Enter in mould, sequentially add 20 grams of gunpowder, lighting gunpowder with burning torch allows docking core with welding powder through high caused by powder burning
Warm rapid melting is integrated, and is removed mould and is removed unnecessary melt body, fusion point is polished into the fusion point with core with circularity；
（5）The seamless winding parcel connection of semiconductor band of semi-conductive layer 7 in the 5mm that will expose at butted line pencil head；
The main insulating layer 6 of two sections of cables is subjected to overlap joint winding parcel with radiant crosslinked polyethylene band；Again spoke is wound with polyamide tape
Crosslinked polyetylene insulated layer is penetrated to be fused；Welding method has two kinds：First method is：It is sub- to polyamides with 800 degree of heat guns
Amine layer carries out heating melt processed, and the method can intuitively see whether completely melting is integrated crosslinked polyethylene band very much, absolutely
Whether the bubble in edge layer excludes completely.Second of welding method be：Polyimide layer is wrapped in 200 degree of heating heating tapes
Outside, the heated at constant temperature processing that the energization of bag heat-preservation cotton carries out 180 degree in 1 hour.Time removes heat-insulation layer, heating heating tape after, gathered
Acid imide band, it is irradiated in the crosslinked polyetylene insulated layer for checking welding whether have bubble with strong-light torch, if there is bubble folder
It is miscellaneous to pinpoint heating expeling bubble with heat gun in insulating barrier.Above two method can all be produced in heating process high temperature from
And original cable main insulating layer is destroyed, therefore need before heating to use circulating chilled water soft tube winding original core main insulating layer 6, heating
During the heat that passes on main insulating layer 6 is passed, avoid damaging main insulating layer 6；
（6）The circularity polishing of crosslinked polyethylene main insulating layer 6 is carried out after removing polyamide tape, and with half after high level of cleanliness
Semiconductor layer 5 outside conductor band or the gapless connection main insulating layer 6 of semiconductor liquid；Three-phase core is carried out with the inserts removed
Between space fill, between carrying out both ends inner sheath with adhesive waterproof tape it is seamless winding overlap joint connect；Consolidated with magnetism-free stainless steel snap ring
Determine the steel sheath connection that copper braid over braid carries out two end cables；Unified winding parcel at cable connector is carried out with pitch nylon tape, with
Fixed cable molding shape, strengthens cable jacket mechanical strength.Treat to pull on what is be inserted in before after the completion of the solidification of pitch nylon tape
The radiant heat draw carries out oversheath system bag pyrocondensation at transition joint.
Using carrying out electrical test after the method for the invention cable connection：
（1）, the ac test voltage that can bear 35kV after 10 kV intermediate joint of electric cable do not puncture for 1 hour；
（2）, conductor resistance value is not more than 1.2 times of former whole piece cable resistance value at cable intermediate joint.
Using carrying out mechanical test after the method for the invention cable connection：
（1）, cable intermediate joint core junction does not occur when being in bending radius more than more than 10 times of cable size
Seminess；
（2）, cable intermediate joint do not have that the crosslinking that heat is melted occurs when being in bending radius more than more than 10 times of cable size
Polyethylene and former cable main insulating layer segregation phenomenon.
Using carrying out physical test after the method for the invention cable connection：The transition joint made is invaded and ducked in drink
Water is found no within 24 hours to immerse in oversheath and in major insulation.
Using progress operating mode operation after the method for the invention cable connection：In July, 2016 makes in Zunyi City, Guizhou Province
5 cable intermediate joint trial operations no exceptions situation so far.
Claims (3)
- A kind of 1. docking calculation of 10kV twisted polyethylene cables, it is characterised in that：The docking calculation concretely comprises the following steps：（1）The two sections of cables that need to be docked are alignd, 600mm cable jacket is peelled off from each port（1）, shelled from each port Go 550mm cable protection steel sheath（2）, 500mm inner restrictive coating is peelled off from each port（3）And remove cable filler；（2）Radiation heat-shrinkable pipe is inserted in an end cable, used after cable butting has made；（3）300mm copper shield is peelled off from each port again（4）, 300mm semi-conductive layer is peelled off from each port（5）；Survey The copper of amount connecting cable core crimps length of tube and taking its 1/2 length to add 5mm to be used as needs strip cable major insulation to expose conduction The foundation of core, cable main insulating layer is peelled off from port according to this length（6）, and major insulation incision position is cut to long 60mm pencil Head shapes, expose 5mm interior semi-conductive layer（7）；（4）Conductor wire core is attached：Connected mode has two kinds：The first is to dock the same phase of cable by two sections with copper aluminium hydraulic pressed connecting pipe Core carries out crimping connection；The second way is to fix docking core with bonding die, and 100 grams of copper agent are reduced into welding powder adds mould In tool, 20 grams of gunpowder are sequentially added, lighting gunpowder with burning torch makes docking core and welding powder fast through high temperature caused by powder burning Fast thawing is combined together, removes mould and removes unnecessary melt body, and fusion point is polished into the fusion point with core with circularity；（5）Semi-conductive layer in the 5mm that will expose at butted line pencil head（7）With the seamless winding parcel connection of semiconductor band；With Radiant crosslinked polyethylene band is by the main insulating layer of two sections of cables（6）Carry out overlap joint winding parcel；Again spoke is wound with polyamide tape Crosslinked polyetylene insulated layer is penetrated to be fused；Need to use circulating chilled water soft tube winding original core main insulating layer before welding（6）, adding Handle passes to main insulating layer in thermal process（6）On heat pass walk, avoid damage main insulating layer（6）；（6）Crosslinked polyethylene main insulating layer is carried out after removing polyamide tape（6）Circularity is polished, and with partly leading after high level of cleanliness Body band or the gapless connection main insulating layer of semiconductor liquid（6）Outer semiconductor layer（5）；Triple line is carried out with the inserts removed Space is filled between core, seamless winding overlap joint connection between carrying out both ends inner sheath with adhesive waterproof tape；With magnetism-free stainless steel snap ring Fixed copper braid over braid carries out the steel sheath connection of two end cables；Unified winding parcel at cable connector is carried out with pitch nylon tape, To fix cable molding shape, strengthen cable jacket mechanical strength；Treat that pitch nylon tape is inserted in before being pulled on after the completion of solidifying The radiant heat draw carry out transition joint at oversheath system bag pyrocondensation.
- 2. the docking calculation of twisted polyethylene cable according to claim 1, it is characterised in that：Welding uses 800 degree of hot blasts Rifle carries out heating melt processed to polyimide layer.
- 3. the docking calculation of twisted polyethylene cable according to claim 1, it is characterised in that：Welding is using 200 degree of heating Heating tape is wrapped in outside polyimide layer, the heated at constant temperature processing that the energization of bag heat-preservation cotton carries out 180 degree in 1 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710023513.8A CN106848990B (en) | 2017-01-13 | 2017-01-13 | A kind of docking calculation of 10kV twisted polyethylene cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710023513.8A CN106848990B (en) | 2017-01-13 | 2017-01-13 | A kind of docking calculation of 10kV twisted polyethylene cables |
Publications (2)
| Publication Number | Publication Date |
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| CN106848990A CN106848990A (en) | 2017-06-13 |
| CN106848990B true CN106848990B (en) | 2018-01-12 |
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| CN201710023513.8A Expired - Fee Related CN106848990B (en) | 2017-01-13 | 2017-01-13 | A kind of docking calculation of 10kV twisted polyethylene cables |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570374A (en) * | 2012-03-27 | 2012-07-11 | 齐齐哈尔电业局 | Connecting method of lengthened 10kV thermal shrinkable three-core cross-linked polyethylene cable intermediate joint |
| CN103904592A (en) * | 2014-01-23 | 2014-07-02 | 汕头市南帆电器有限公司 | Method for manufacturing 10 kV cross linked polyethylene insulated thermal shrinkage terminal |
| CN103944117A (en) * | 2014-03-11 | 2014-07-23 | 汕头市南帆电器有限公司 | Manufacturing method for intermediate connector of high voltage cable |
| CN105281260A (en) * | 2014-06-07 | 2016-01-27 | 国家电网公司 | 35kV heat shrink power cable intermediate connector manufacturing technology method |
| CN105552791A (en) * | 2015-12-09 | 2016-05-04 | 山东太阳纸业股份有限公司 | Method for making 10KV heat-shrinkable three-core cross-linked polyethylene cable intermediate joint |
| CN106329268A (en) * | 2016-08-17 | 2017-01-11 | 长园电力技术有限公司 | Wrapping and molding manufacturing method for middle connector of cross-linked polyethylene insulated power cable |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015142486A (en) * | 2014-01-30 | 2015-08-03 | 中部電力株式会社 | End structure of high voltage cable |
-
2017
- 2017-01-13 CN CN201710023513.8A patent/CN106848990B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570374A (en) * | 2012-03-27 | 2012-07-11 | 齐齐哈尔电业局 | Connecting method of lengthened 10kV thermal shrinkable three-core cross-linked polyethylene cable intermediate joint |
| CN103904592A (en) * | 2014-01-23 | 2014-07-02 | 汕头市南帆电器有限公司 | Method for manufacturing 10 kV cross linked polyethylene insulated thermal shrinkage terminal |
| CN103944117A (en) * | 2014-03-11 | 2014-07-23 | 汕头市南帆电器有限公司 | Manufacturing method for intermediate connector of high voltage cable |
| CN105281260A (en) * | 2014-06-07 | 2016-01-27 | 国家电网公司 | 35kV heat shrink power cable intermediate connector manufacturing technology method |
| CN105552791A (en) * | 2015-12-09 | 2016-05-04 | 山东太阳纸业股份有限公司 | Method for making 10KV heat-shrinkable three-core cross-linked polyethylene cable intermediate joint |
| CN106329268A (en) * | 2016-08-17 | 2017-01-11 | 长园电力技术有限公司 | Wrapping and molding manufacturing method for middle connector of cross-linked polyethylene insulated power cable |
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