CN101630828A - Middle connector process of oil-immersed cable lapping - Google Patents
Middle connector process of oil-immersed cable lapping Download PDFInfo
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- CN101630828A CN101630828A CN200910023093A CN200910023093A CN101630828A CN 101630828 A CN101630828 A CN 101630828A CN 200910023093 A CN200910023093 A CN 200910023093A CN 200910023093 A CN200910023093 A CN 200910023093A CN 101630828 A CN101630828 A CN 101630828A
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- oversheath
- tube connector
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000003822 epoxy resin Substances 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims abstract description 13
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 13
- 239000011521 glass Substances 0.000 claims abstract description 11
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 10
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 9
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 9
- 238000002788 crimping Methods 0.000 claims abstract description 6
- 239000004020 conductor Substances 0.000 claims abstract description 5
- 230000007704 transition Effects 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 claims description 9
- 239000011888 foil Substances 0.000 claims description 8
- 230000000873 masking effect Effects 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000004593 Epoxy Substances 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229920006334 epoxy coating Polymers 0.000 claims description 5
- 239000012774 insulation material Substances 0.000 claims description 5
- 229950000845 politef Drugs 0.000 claims description 5
- 239000004952 Polyamide Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000000819 phase cycle Methods 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 229920000768 polyamine Polymers 0.000 claims description 4
- 229920002545 silicone oil Polymers 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 3
- 239000005977 Ethylene Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 238000006471 dimerization reaction Methods 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 150000004665 fatty acids Chemical class 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000005476 soldering Methods 0.000 claims description 3
- 235000013311 vegetables Nutrition 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000004804 winding Methods 0.000 abstract 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- 230000016507 interphase Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 239000004568 cement Substances 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 230000005684 electric field Effects 0.000 description 4
- 239000010426 asphalt Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000004567 concrete Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 201000001371 inclusion conjunctivitis Diseases 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 206010044325 trachoma Diseases 0.000 description 2
- 206010027439 Metal poisoning Diseases 0.000 description 1
- ARJGKFAHJAXZCC-UHFFFAOYSA-N N'-(2-aminoethyl)ethane-1,2-diamine ethene Chemical group NCCNCCN.C=C.C=C.C=C ARJGKFAHJAXZCC-UHFFFAOYSA-N 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 208000034189 Sclerosis Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000006735 epoxidation reaction Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 208000008127 lead poisoning Diseases 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 229960001124 trientine Drugs 0.000 description 1
Landscapes
- Cable Accessories (AREA)
Abstract
The invention discloses a middle connector process of oil-immersed cable lapping, which comprises the steps of reserving taped cable insulation 25mm, removing the redundant winding, and wrapping the reserved winding with 7-8 layers of a transparent PVC protective belt as the temporary protection; removing the redundant taped insulation and inter-phase stuffing, then wrapping a layer of transparent PVC on the insulated cable conductor in a half overlapping way as the temporary protection, and bending the wire core at 24-26 degrees; stripping the insulating layer at the end of each wire core, and threading the stripped wire core through a connecting pipe for crimping; lapping a polytetrafluoroethylene belt outside the silver paper of the connecting pipe, and then lapping an epoxy resin glass tape in a half overlapping way on the polytetrafluoroethylene belt. The middle connector process of the invention can be operated safely and reliably. With simplicity, convenience and reliable performance, the middle connector process decreases the labor intensity, shortens the power-failure time and improves the economic benefit, the construction technological level of cables and the work efficiency when in manufacture.
Description
Technical field
The present invention relates to the improvement of process for power cable, particularly the wrapped transition joint technology of oil compression cable.
Background technology
Did the wrapped transition joint technology of cable in the past: this complex process, require staff's technical ability height, when pounding lead pipe, require evenly, two people must carry out simultaneously, if mismate, cause off-centre easily, comparatively difficult to end socket, require the technology height during end socket, sealing lead easily produces trachoma, causes that moisture and moisture enter.Dielectric strength is reduced, and asphalt insulating cement leaks outside.The sealing lead overlong time makes cable body sheath temperature too high, burns out insulation, and operation is caused a hidden trouble.Often carry out this work, easily cause lead poisoning, when enduring asphalt insulating cement, the asphalt insulating cement temperature requirement is higher, and when temperature was too high, it is partially carbonized that insulating cement is caused, its dielectric strength is reduced.
Summary of the invention
The objective of the invention is to overcome above-mentioned prior art deficiency, provide a kind of oil compression cable wrapped transition joint technology, can reduce labour intensity greatly, increase work efficiency, shorten working hours.Also improve the pollution of stove to environment.Concrete processing step is as follows:
1) put well in the cable joint installation site and make head bracket, it is overlapping that the butt joint cable is reserved 200mm, amputates unnecessary cable;
2) length 500mm is respectively measured at a cable center two ends, peels off outer jacket, measures length 450mm binding, divests armouring, cleaning sheath surface;
3) oversheath in the pyrocondensation is inserted in the cable alignment;
4) positive cable is put in alignment, respectively measures length 300mm from a cable center two ends and cuts open lead, divests shielding paper behind the lead that expands;
5) keep cable full packaged insulation materials 25mm, remove unnecessary turnkey, wrapped transparent PVC boundary belt 7-8 layer is made temporary protection on the reservation turnkey, takes down unnecessary full packaged insulation materials and alternate filler, with the transparent PVC band cable conductor first overlapping one deck that holds that insulate is made temporary protection, with the crooked 24-26 degree of core;
6) check the cable phase sequence, the horn mouth spacing behind the bloated lead in cable sheath both sides is 600mm;
7) divest each core overhang insulation layer, the length that divests is the 1/2+5mm of tube connector length, and the core after will divesting then penetrates the tube connector crimping, destroys burr;
8) remove the PVC boundary belt, fill in load mould on the tube connector, wrap one deck masking foil on the tube connector surface with masking foil;
9) the wrapped again politef band of tube connector masking foil skin, use the half overlapping method that holds, wrapped thickness adds 8mm for the tube connector external diameter, wrapped 4-5 layer, the wrapped 4-6 layer of other core insulation parts, in the wrapped process politef band is evenly smeared silicone oil, the polytetrafluoroethylene tape thickness is the 0.02-0.1 millimeter;
10) be that 100 parts of No. 6101 epoxy resin mix with No. 651 kymene 5-45 parts and mix well by weight, be epoxy coating, epoxy resin after the proportioning is coated on the glass tape, on the polytetrafluoroethylene band wrapped glass epoxy silk ribbon with 1/2 overlapping carry out wrapped;
11) 2 layers of wrapped tapes on the glass epoxy silk ribbon;
12) the heat-shrink tube inner sheath is pulled out two ends spliced cables sheath 50mm, be coated with PUR and carry out pyrocondensation;
13) welding of the flat copper ground wire of two ends sheath armouring is connected, in 3 minutes soldering and sealing time, torch flame with miter angle to the sheath direct baking;
14) the heat-shrink tube oversheath that is inserted in is pulled out, two ends spliced cables oversheath, the lap of splice is 50mm, is coated with PUR and carries out pyrocondensation;
15) after the pyrocondensation, hold each spliced cables oversheath of two layers of water blocking tape two ends on pyrocondensation oversheath pipe, the lap of splice is 50mm;
16) on water blocking tape, hold two layers of armoring tape, each spliced cables oversheath of the two ends of armoring tape, the lap of splice is 50mm.
Described polyamide: contain intermingle with by dimerization vegetable fatty acids and ethylene polyamine series and to form.
The present invention can be safe and reliable operation.At work, because simple and practical, the dependable performance of this joint technology, therefore in manufacturing process, both reduced labour intensity, shortened interruption duration, again to increasing economic efficiency and improving the cable construction technological level and operating efficiency plays a good role.
Embodiment
Concrete steps are as follows:
1) check material, whether complete, the cleaning of instrument, whether specification is consistent, checks the cable line title.Put the concrete pedestal plate well in the joint installation site, it is overlapping that the butt joint cable is reserved 200mm, amputates unnecessary cable.
2) in the cable end in the heart two ends respectively measure length 500mm, peel off outer jacket, measure length 450mm and prick the second road binding, divest armouring, cleaning sheath surface.
3) oversheath in the pyrocondensation is inserted in the cable alignment.
4) positive cable is put in alignment, from the heart two ends respectively measure length 300mm and cut open lead, bloated lead divests shielding paper.
Bloated lead mainly is to improve Electric Field Distribution, so the section behind the lead that expands should be smooth, and must not be jagged.In the making of cable end owing to need metal protection protector and original insulation are cut off; the cross section of core junction is strengthened; the not equal reason of the original insulation of the thickness of supplementary insulation, dielectric constant and cable, bigger variation has taken place in the Electric Field Distribution in the transition joint.10KV and following cable generally are all-round, Electric Field Distribution more complicated in terminal and transition joint, also there is one in this to the disadvantageous positive tangential stress that insulate in textural cable except that having radial stress, and after cutting off, sheath produced an axial stress, this moment, the axial stress of insulating surface was very big at the sheath gap.For wrapped type cable, bloated lead is the effective measures of improving Electric Field Distribution on the sheath.
5) stay turnkey apart from 25mm, remove unnecessary turnkey, wrapped transparent PVC band 7-8 layer is made temporary protection on the reservation turnkey, takes down unnecessary full packaged insulation materials and alternate filler, with the transparent PVC band each core half overlapping one deck that holds is made temporary protection, with the core bending forming.
6) the check and correction phase sequence is carried out mark, and the both sides horn mouth is at a distance of 600mm.
7) divest each heart yearn overhang insulation.Take over 1/2+5mm, penetrate the tube connector crimping, burr is destroyed.(annotate: phase sequence is correct).Crimping is required: the contact resistance of joint should be little and stable; Enough mechanical strengths are arranged; Corrosion-resistant.Crimping tool is required: pressing mold is made up of formpiston and former.Different compression bonding methods, different conductor materials, different conductor cross-sections has different crimps, can not mix use, in order to avoid influence crimp quality.
8) remove the PVC boundary belt, fill in load mould on the tube connector, wrap one deck masking foil on the tube connector surface with masking foil.
9) wrapped politef band uses the half overlapping method that holds.Wrapped thickness is reserved wrapped 4-5 layer on the turnkey for the tube connector external diameter adds 8mm, other core insulation parts 4-6 layer (annotating: should evenly smear silicone oil in the wrapped process).During wrapped teflin tape, should be even, fold does not have, the limit bound edge is smeared silicone oil to get rid of the air-gap between insulating barrier, to reach filling effect, polytetrafluoroethylene has good electric property, has dwindled joint dimension with it as the insulating material of transition joint, make its compact conformation, the polytetrafluoroethylene tape thickness is generally the 0.02-0.1 millimeter.
The polytetrafluoroethylene film performance
| Classification | Tensile strength (kilogram/millimeter 2) | Alternating current breakdown intensity (kvolts/millimeter) |
| Non-directional film orientation film | ????1-3 ????3-10 | ????20 ????25-100 |
10) be coated with the bag glass tape, wrapped glass epoxy silk ribbon overlappingly carries out wrappedly with 1/2, evenly smears.The matching method of epoxy coating: mix with No. 651 kymene 5-45 parts (weight ratio) with 100 parts of No. 6101 epoxy resin and to mix well, (note: No. 6101 epoxy resin can be heated to 40-50 ℃ earlier in the winter time to be epoxy coating, then needn't heat summer), by one deck epoxy coating and one deck glass tape, be combined as one deck " epoxidation zone ".Promptly increase the sealing of cable end, also increased certain mechanical strength simultaneously.
Epoxy resin: the molecular formula two ends have the material of two or more epoxy radicals to be called epoxy resin, itself makes the resin of thermoplasticity line style structure, after adding the curing agent chemically reactive, make the linear epoxy resin molecule be unified into cancellated giant molecule, become and meet the insoluble not molten thermosetting resin of heat of meeting of water.
Polyamide: be a kind of modified adhesive class curing agent that extensively adopts, it is contained intermingle with by dimerization vegetable fatty acids and ethylene polyamine series and forms.Be oily liquids at normal temperatures, along with decrease of temperature, viscosity increases to some extent.Toxicity is small, and consumption needn't strict control, can from 30% to 100% as: 651 amount ranges with the weight ratio of epoxy resin, and the more its pliability is just more greatly for consumption.Fine with the cohesive force of metal, functional with the epoxy resin composite matter after the sclerosis of 651 polyamides, be to make the comparatively ideal a kind of curing agent of cable end.
The amine type hardeners scale
| Kind | Consumption (is 100% by epoxy resin) |
| Diethylenetriamine triethylene tetramine TEPA polyethylene polyamine | ????6-8％ ????11-13％ ????12-15％ ????16-18％ |
11) wrapped tape, wrapped tape is 2 layers on the online core insulation glass tape.
12) the heat-shrink tube inner sheath is pulled out two ends, be coated with PUR and carry out pyrocondensation.
13) two ends sheath armouring is communicated with the welding of flat copper ground wire.
Require: (1) time must not be long, must not be above 3 minutes.(2) torch flame must not preferably be operated with miter angle the sheath direct baking.(3) sealing lead of soldering and sealing must not have trachoma, contacts well with armouring, sheath sheath.
14) the outdoor cover of two pyrocondensations is pulled out, be coated with PUR at cable jacket 30mm place, two heat-shrink tube lap-joints also should be coated with PUR and carry out pyrocondensation.
15) after the pyrocondensation, on pyrocondensation oversheath pipe, hold each spliced cables oversheath 50mm of two layers of water blocking tape two ends.
16) hold two layers of armoring tape on water blocking tape, two ends respectively overlap power supply oversheath 50m.
17) last, install transition joint protection box additional.
Claims (2)
1, the wrapped transition joint technology of oil compression cable is characterized in that, may further comprise the steps:
1) put well in the cable joint installation site and make head bracket, it is overlapping that the butt joint cable is reserved 200mm, amputates unnecessary cable;
2) length 500mm is respectively measured at a cable center two ends, peels off outer jacket, measures length 450mm binding, divests armouring, cleaning sheath surface;
3) oversheath in the pyrocondensation is inserted in the cable alignment;
4) positive cable is put in alignment, respectively measures length 300mm from a cable center two ends and cuts open lead, divests shielding paper behind the lead that expands;
5) keep cable full packaged insulation materials 25mm, remove unnecessary turnkey, wrapped transparent PVC boundary belt 7-8 layer is made temporary protection on the reservation turnkey, takes down unnecessary full packaged insulation materials and alternate filler, with the transparent PVC band cable conductor first overlapping one deck that holds that insulate is made temporary protection, with the crooked 24-26 degree of core;
6) check the cable phase sequence, the horn mouth spacing behind the bloated lead in cable sheath both sides is 600mm;
7) divest each core overhang insulation layer, the length that divests is the 1/2+5mm of tube connector length, and the core after will divesting then penetrates the tube connector crimping, destroys burr;
8) remove the PVC boundary belt, fill in load mould on the tube connector, wrap one deck masking foil on the tube connector surface with masking foil;
9) the wrapped again politef band of tube connector masking foil skin, use the half overlapping method that holds, wrapped thickness adds 8mm for the tube connector external diameter, wrapped 4-5 layer, the wrapped 4-6 layer of other core insulation parts, in the wrapped process politef band is evenly smeared silicone oil, the polytetrafluoroethylene tape thickness is the 0.02-0.1 millimeter;
10) be that 100 parts of No. 6101 epoxy resin mix with No. 651 kymene 5-45 parts and mix well by weight, be epoxy coating, epoxy resin after the proportioning is coated on the glass tape, on the polytetrafluoroethylene band wrapped glass epoxy silk ribbon with 1/2 overlapping carry out wrapped;
11) 2 layers of wrapped tapes on the glass epoxy silk ribbon;
12) the heat-shrink tube inner sheath is pulled out two ends spliced cables sheath 50mm, be coated with PUR and carry out pyrocondensation;
13) welding of the flat copper ground wire of two ends sheath armouring is connected, in 3 minutes soldering and sealing time, torch flame with miter angle to the sheath direct baking;
14) the heat-shrink tube oversheath that is inserted in is pulled out, two ends spliced cables oversheath, the lap of splice is 50mm, is coated with PUR and carries out pyrocondensation;
15) after the pyrocondensation, hold each spliced cables oversheath of two layers of water blocking tape two ends on pyrocondensation oversheath pipe, the lap of splice is 50mm;
16) on water blocking tape, hold two layers of armoring tape, each spliced cables oversheath of the two ends of armoring tape, the lap of splice is 50mm.
2, the wrapped transition joint technology of oil compression cable according to claim 1 is characterized in that described polyamide: contained intermingle with by dimerization vegetable fatty acids and ethylene polyamine series and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100230939A CN101630828B (en) | 2009-06-26 | 2009-06-26 | Middle connector process of oil-immersed cable lapping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100230939A CN101630828B (en) | 2009-06-26 | 2009-06-26 | Middle connector process of oil-immersed cable lapping |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101630828A true CN101630828A (en) | 2010-01-20 |
| CN101630828B CN101630828B (en) | 2011-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100230939A Active CN101630828B (en) | 2009-06-26 | 2009-06-26 | Middle connector process of oil-immersed cable lapping |
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| Country | Link |
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| CN (1) | CN101630828B (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916955A (en) * | 2010-07-23 | 2010-12-15 | 湖南威铭能源科技有限公司 | Waterproof connection method for signal lines or wires |
| CN102063970A (en) * | 2010-11-05 | 2011-05-18 | 上海德力西集团有限公司 | Connecting method of wrapping steel strips for armored cables |
| CN101752938B (en) * | 2010-02-02 | 2011-06-15 | 山西天波制泵有限公司 | Joint protective structure of deep diving electric pump cable and making method thereof |
| CN102299496A (en) * | 2010-06-22 | 2011-12-28 | 宝山钢铁股份有限公司 | Oil leakage repairing method of high-voltage oil filled cable terminal |
| CN102780197A (en) * | 2012-06-29 | 2012-11-14 | 彩虹彩色显像管总厂 | Constant voltage oil sealing method for thermal shrinkage cable head |
| CN103107498A (en) * | 2012-11-20 | 2013-05-15 | 叶香竹 | Cable head manufacture construction method |
| CN103390528A (en) * | 2012-05-08 | 2013-11-13 | 南京恒士丹电气设备有限公司 | Breaker connecting device and manufacturing method thereof |
| CN104157999A (en) * | 2014-08-25 | 2014-11-19 | 中国电建集团北京勘测设计研究院有限公司 | Waterproof connection method for equipment in hole and gummed wire |
| CN104184078A (en) * | 2014-07-07 | 2014-12-03 | 江苏海纬集团有限公司 | Manufacturing of intermediate joint of high-voltage cable |
| CN104518446A (en) * | 2013-09-30 | 2015-04-15 | 中铁六局集团有限公司 | Railway communication cable construction method |
| CN105048173A (en) * | 2015-08-17 | 2015-11-11 | 深圳市沃尔核材股份有限公司 | Clustered port-sealed cable and port sealing method thereof |
| CN105161944A (en) * | 2015-08-18 | 2015-12-16 | 中国石油天然气集团公司 | Gas-preventing and corrosion-preventing connection method for lead sheath oil-submersible cable |
| 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 |
| CN107732803A (en) * | 2017-10-19 | 2018-02-23 | 中国水利水电第十四工程局有限公司 | A kind of restorative procedure of heavy in section low voltage single core flexible cable |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2074281T3 (en) * | 1990-10-25 | 1995-09-01 | Minnesota Mining & Mfg | TRANSITION JOINT FOR CABLES FILLED WITH OIL. |
| CN2137828Y (en) * | 1992-07-15 | 1993-07-07 | 能源部武汉高压研究所 | Transition connector of resin-casted for three-core power cable under 15 kv |
| CN2192968Y (en) * | 1993-08-16 | 1995-03-22 | 深圳长园应用化学有限公司 | Heating expanding type intermediate joint for oil soaking cable |
| CN2277133Y (en) * | 1996-09-06 | 1998-03-25 | 董磊 | Intermediate joint of cable |
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2009
- 2009-06-26 CN CN2009100230939A patent/CN101630828B/en active Active
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| CN101752938B (en) * | 2010-02-02 | 2011-06-15 | 山西天波制泵有限公司 | Joint protective structure of deep diving electric pump cable and making method thereof |
| CN102299496A (en) * | 2010-06-22 | 2011-12-28 | 宝山钢铁股份有限公司 | Oil leakage repairing method of high-voltage oil filled cable terminal |
| CN102299496B (en) * | 2010-06-22 | 2013-04-24 | 宝山钢铁股份有限公司 | Oil leakage repairing method of high-voltage oil filled cable terminal |
| CN101916955A (en) * | 2010-07-23 | 2010-12-15 | 湖南威铭能源科技有限公司 | Waterproof connection method for signal lines or wires |
| CN102063970A (en) * | 2010-11-05 | 2011-05-18 | 上海德力西集团有限公司 | Connecting method of wrapping steel strips for armored cables |
| CN103390528A (en) * | 2012-05-08 | 2013-11-13 | 南京恒士丹电气设备有限公司 | Breaker connecting device and manufacturing method thereof |
| CN103390528B (en) * | 2012-05-08 | 2015-06-17 | 南京恒士丹电气设备有限公司 | Breaker connecting device and manufacturing method thereof |
| CN102780197A (en) * | 2012-06-29 | 2012-11-14 | 彩虹彩色显像管总厂 | Constant voltage oil sealing method for thermal shrinkage cable head |
| CN103107498A (en) * | 2012-11-20 | 2013-05-15 | 叶香竹 | Cable head manufacture construction method |
| CN104518446A (en) * | 2013-09-30 | 2015-04-15 | 中铁六局集团有限公司 | Railway communication cable construction method |
| CN104184078A (en) * | 2014-07-07 | 2014-12-03 | 江苏海纬集团有限公司 | Manufacturing of intermediate joint of high-voltage cable |
| CN104157999A (en) * | 2014-08-25 | 2014-11-19 | 中国电建集团北京勘测设计研究院有限公司 | Waterproof connection method for equipment in hole and gummed wire |
| CN105048173A (en) * | 2015-08-17 | 2015-11-11 | 深圳市沃尔核材股份有限公司 | Clustered port-sealed cable and port sealing method thereof |
| CN105161944A (en) * | 2015-08-18 | 2015-12-16 | 中国石油天然气集团公司 | Gas-preventing and corrosion-preventing connection method for lead sheath oil-submersible cable |
| CN105161944B (en) * | 2015-08-18 | 2018-02-02 | 中国石油天然气集团公司 | A kind of lead sheath oil-submersible cable gas-tight anticorrosion connection method |
| 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 |
| CN106329268B (en) * | 2016-08-17 | 2017-11-28 | 长园电力技术有限公司 | The wrapped molding preparation method of power cable with cross-linked polyethylene insulation transition joint |
| CN107732803A (en) * | 2017-10-19 | 2018-02-23 | 中国水利水电第十四工程局有限公司 | A kind of restorative procedure of heavy in section low voltage single core flexible cable |
| CN111106573A (en) * | 2018-10-26 | 2020-05-05 | 苏州中明光电有限公司 | Cable joint insulation waterproof connection method |
| CN113252742A (en) * | 2021-03-09 | 2021-08-13 | 浙江新图维电子科技有限公司 | Lead sealing damage detection device and method based on distributed capacitance detection technology |
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| CN101630828B (en) | 2011-06-15 |
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