CN109830337A - Three core overhead insulated cables and preparation method thereof are pressed in tension waterproof ice snow type - Google Patents
Three core overhead insulated cables and preparation method thereof are pressed in tension waterproof ice snow type Download PDFInfo
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- CN109830337A CN109830337A CN201910253523.XA CN201910253523A CN109830337A CN 109830337 A CN109830337 A CN 109830337A CN 201910253523 A CN201910253523 A CN 201910253523A CN 109830337 A CN109830337 A CN 109830337A
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- 238000002360 preparation method Methods 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 70
- 239000010959 steel Substances 0.000 claims abstract description 70
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 18
- 230000000903 blocking effect Effects 0.000 claims abstract description 13
- 239000004065 semiconductor Substances 0.000 claims abstract description 11
- 230000002194 synthesizing effect Effects 0.000 claims abstract description 6
- 239000004020 conductor Substances 0.000 claims description 44
- 229910052782 aluminium Inorganic materials 0.000 claims description 34
- 229920003023 plastic Polymers 0.000 claims description 33
- 239000004033 plastic Substances 0.000 claims description 33
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 30
- 239000002650 laminated plastic Substances 0.000 claims description 19
- 239000002131 composite material Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 10
- 239000004698 Polyethylene Substances 0.000 claims description 8
- -1 polyethylene Polymers 0.000 claims description 8
- 229920000573 polyethylene Polymers 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 230000004438 eyesight Effects 0.000 claims description 6
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 6
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 6
- 239000004576 sand Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000005253 cladding Methods 0.000 claims description 4
- 239000012774 insulation material Substances 0.000 claims description 4
- 239000004717 peroxide crosslinked polyethylene Substances 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 3
- 238000010382 chemical cross-linking Methods 0.000 claims description 3
- 238000004132 cross linking Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims 8
- 229920001684 low density polyethylene Polymers 0.000 claims 2
- 239000004702 low-density polyethylene Substances 0.000 claims 2
- 239000000835 fiber Substances 0.000 claims 1
- 229920001169 thermoplastic Polymers 0.000 claims 1
- 239000004416 thermosoftening plastic Substances 0.000 claims 1
- 238000009833 condensation Methods 0.000 abstract description 3
- 230000005494 condensation Effects 0.000 abstract description 3
- 230000008595 infiltration Effects 0.000 abstract description 3
- 238000001764 infiltration Methods 0.000 abstract description 3
- 238000003892 spreading Methods 0.000 abstract description 2
- 238000009826 distribution Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The invention discloses press three core overhead insulated cables and preparation method thereof in a kind of tension waterproof ice snow type, it includes the single-core cable and support frame of three equivalent specifications, the outer rim of support frame is uniformly distributed, and there are three grooves, three single-core cables are fixed in a groove, the center of support frame as described above is equipped with carrying steel core, the periphery for carrying steel core is uniformly distributed there are three steel core is heated by 120 °, and heating steel core and groove interval are arranged；Three single-core cable dextrad twisted synthesizing cables, laying up pitch are 55-75 times of single-core cable outer diameter.Carrying steel core is arranged at support frame center in the present invention, can enhance the tensile capacity of cable；Setting heating steel core, can melt the ice and snow of cable outer layer condensation, avoid shaft tower load-bearing overweight in support frame.Water blocking layer uses semiconductor waterstop, is overlapped on core, once encountering outside moisture infiltration, can expand rapidly, and then prevents moisture that spreading inside cable, cable longitudinal water-blocking performance further can be improved.
Description
Technical field
The present invention relates to technical field of electric wires and cables, press three cores aerial in specifically a kind of tension waterproof ice snow type
Insulated cable and preparation method thereof.
Background technique
Aerial insulated cable is the main component transmitted electricity in city and rural power grids, with the transformation of power grid, overhead insulating
Cable has the huge market demand and good development prospect.Existing aerial insulated cable is typically all single-core cable, by
Limited in the bearing capacity of cable itself, the number of shaft tower is more, and span is smaller, and construction cost is larger.
Do not have underground laying condition because the application place of cable limits in extremely frigid zones, needs aerial laying, for
Cable voltage class is the threephase cable of 10KV, needs to consider the drawing coefficient of cable in aerial laying, is blocked water and Anti-ice-and-snow
Performance avoids cable from gradually going deep into causing insulating layer punch-through occur inside insulating layer because of the erosion of rainwater.
Summary of the invention
The object of the present invention is to provide press three core overhead insulated cables and its preparation side in a kind of tension waterproof ice snow type
Method is stretched, the requirement of waterproof performance with meeting extremely frigid zones aerial cable, while cable surface icing being avoided to cause shaft tower load-bearing
It is overweight safe distribution of electric power accident occur.
In order to achieve the above objectives, the technical solution used in the present invention are as follows:
Three core overhead insulated cables are pressed in a kind of tension waterproof ice snow type, it includes the single-core cable and branch of three equivalent specifications
Support, the outer rim of support frame is uniformly distributed, and there are three grooves, and three single-core cables are fixed in a groove, and the center of support frame as described above is equipped with
Steel core is carried, the periphery for carrying steel core is uniformly distributed there are three steel core is heated by 120 °, and heating steel core and groove interval are arranged；Three lists
Core cable dextrad twisted synthesizing cable, laying up pitch are 55-75 times of single-core cable outer diameter.
Preferably, the single-core cable includes that conductor, conductor shielding layer, insulating layer, water blocking layer and plastic-aluminum are viscous from the inside to the outside
Sheath is tied, APL aluminum plastic laminate sheath is overlapped longitudinal heat-sealing using double-sided aluminum plastic composite band on core and coats, on the outside of aluminium-plastic tape
Layer of polyethylene sheath, sheath and aluminium-plastic tape excellent bonds are closely extruded, APL aluminum plastic laminate sheath is formed.
Preferably, the water blocking layer is overlapped on core by semiconductor waterstop, is put up width and is blocked water for semiconductive
20-30% with bandwidth.
Preferably, the carrying steel core and heating steel core are all made of 3 grades of intensity steel wires.
Preferably, the outer diameter of the carrying steel core is greater than the outer diameter of heating steel core.
Preferably, the aluminium-plastic tape puts up the 20-30% that width is aluminium-plastic tape bandwidth.
Preferably, the sheath is prepared using black linear low density polyethylene.
The preparation method of three core overhead insulated cables, the tension waterproof ice snow type are pressed in a kind of tension waterproof ice snow type
Three core overhead insulated cables of middle pressure be above-mentioned aerial insulated cable, it the following steps are included:
Step 1: the preparation of conductor: conductor is pressed by multiply aluminium single line is twisted, and tightening factor 90%, conductor strand is equal
It is even, close, any surface finish impulse- free robustness；
Step 2: the preparation of conductor shield and insulating layer: conductor shield and insulating layer use double-layer coextrusion technique, totally-enclosed
Chemical crosslinking；Conductor shield uses 10kV grades of cross-linking type semiconductive shieldin materials, and conductor shield is closely extruded in conductor outer wall
On, and be easily peeled off without damaging conductor, semiconductive shieldin material is not remained in connector slots after conductor shield removing；Insulating layer
Using 10kV grades of weather-proof water resistant tree-shaped peroxide crosslinked polyethylene Insulation Materials, insulating layer thinnest point is not less than nominal value × 90%
Mm, and the degree of eccentricity is not more than 10%；Without eyesight visible bubble in bubble and sand holes on insulating layer cross section, form wire wicking surface is smooth, without bright
Aobvious twisted wire burr；Coated between insulating layer and conductor shield it is closely knit, must not be with the presence of char particle, air gap or impurity；
Step 3: the preparation of water blocking layer: using semiconductor waterstop overlapping on core, putting up width and block water for semiconductive
20-30% with bandwidth；Wrapped rear surface must not have corrugation, flange, bottom pour ladle, flash stitch or outer diameter uneven, continuously wrapped partly to lead
Cable longitudinal water-blocking performance can be improved in electric waterstop；
Step 4: the preparation of APL aluminum plastic laminate sheath: APL aluminum plastic laminate sheath is overlapped on core longitudinal using double-sided aluminum plastic composite band
Heat-sealing cladding, aluminium-plastic tape nominal thickness are 0.2mm, the 20-30% that width is aluminium-plastic tape bandwidth are put up, using hot wind
Welding is secured；Sheath is closely extruded outside aluminium-plastic tape using black linear low density polyethylene protective cover material, makes itself and plastic-aluminum
Composite band reliable bond forms APL aluminum plastic laminate sheath, and sheath thinnest point is not less than nominal value × 85%mm, and cable core appearance rounding,
Out-of-roundness is not more than 10%；Jacket surface is smooth, smooth after single-core cable molding, should not have wedge angle, point, burn or abrasive
Trace, without the visible bubble of eyesight and sand holes on cross section；
Step 5: the preparation of support frame: 3 grades of intensity steel wires are twisted into as carrying steel core and heat steel core, it is low close with thermoplasticity
Degree polyethylene will carry steel core and heating steel core extrudes into shape of a saddle support frame, and the outer rim of support frame is uniformly distributed, and there are three grooves, hold
The center that steel core is located at support frame is carried, heating steel core is distributed in the outside of carrying steel core by 120 °, heats outside steel core and support frame
Groove arranged for interval on edge；
Step 6: stranding: three single-core cables being carried out marking mark, are sequentially fixed in three grooves of support frame, dextrad
Twisted synthesizing cable, laying up pitch are 55-75 times of single-core cable outer diameter.
Cable prepared by the present invention when in use, to avoid forming a large amount of icing phenomenons on cable, can be heated at three
Apply certain voltage on steel core, since the self-resistance of heating steel core is larger, the temperature of support frame can be improved moment, make cable
The ice dissolution on surface avoids shaft tower load-bearing is overweight from safe distribution of electric power accident occur.
Carrying steel core is arranged at support frame center in the present invention, can enhance the tensile capacity of cable；It is arranged in support frame
Steel core is heated, the ice and snow of cable outer layer condensation can be melted, avoid shaft tower load-bearing overweight.
Using double-sided aluminum plastic composite band, longitudinally heat-sealing coats APL aluminum plastic laminate sheath on cable core in the present invention, aluminium-plastic tape
Layer of polyethylene sheath is closely extruded outside, makes itself and aluminium-plastic tape excellent bonds, forms bonding sheath, cable is promoted and radially hinders
Water, humidity resistance avoid cable from gradually going deep into insulating inner because of the erosion of rainwater and insulation are caused punch-through occur.
Water blocking layer uses semiconductor waterstop in the present invention, is overlapped on core, once outside moisture infiltration is encountered,
It can expand rapidly, and then prevent moisture that spreading inside cable, cable longitudinal water-blocking performance further can be improved.
Conductor shield uses 10KV grades of Cross-linkable semiconductive shieldin materials in the present invention, and insulating layer inner surface is smooth connects
Touching can be played the role of being homogenized electric field；Insulating layer uses 10kV grades of weather-proof water resistant tree-shaped peroxide crosslinked polyethylene Insulation Materials,
The reliability and service life of cable can be improved.
Pe sheath uses black linear low density polyethylene in the present invention, and polyethylene, which includes, is distributed uniform carbon
It is black, antiultraviolet can be played the role of, enhance the anti-aging property of cable.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is preparation flow figure of the invention；
In figure: 1, conductor, 2, conductor shield, 3, insulating layer, 4, water blocking layer, 5, aluminium-plastic tape, 6, sheath, 7, support frame,
8, steel core, 9, carrying steel core, 10, single-core cable, 11, groove are heated.
Specific embodiment
The present invention will be further described in detail with reference to the accompanying drawing.
Three core overhead insulated cables are pressed in a kind of tension waterproof ice snow type, it includes the single-core cable of three equivalent specifications
10 and support frame 7, the outer rim of support frame 7 is uniformly distributed there are three groove 11, and three single-core cables 10 are fixed in groove 11, support frame
7 center is equipped with carrying steel core 9, and the periphery of carrying steel core 9 is uniformly distributed there are three steel core 8 is heated by 120 °, heats steel core 8 and groove
11 interval settings；Three 10 dextrad twisted synthesizing cables of single-core cable, laying up pitch are 55-75 times of 10 outer diameter of single-core cable.
Single-core cable 10 includes conductor 1, conductor shield 2, insulating layer 3, water blocking layer 4 and APL aluminum plastic laminate shield from the inside to the outside
Layer, APL aluminum plastic laminate sheath are overlapped longitudinal heat-sealing cladding using double-sided aluminum plastic composite band 5 on core, and it is plastic-aluminum combined for putting up width
20-30% with bandwidth, 5 outside of aluminium-plastic tape closely extrude layer of polyethylene sheath 6, and sheath 6 and aluminium-plastic tape 5 are good
Bonding forms APL aluminum plastic laminate sheath.
Water blocking layer 4 is overlapped on core by semiconductor waterstop, puts up the 20- that width is semiconductor waterstop bandwidth
30%。
Carrying steel core 9 and heating steel core 8 are all made of 3 grades of intensity steel wires.The outer diameter for carrying steel core 9 is greater than heating steel core 8
Outer diameter.
The preparation method of three core overhead insulated cables, the tension waterproof ice snow type are pressed in a kind of tension waterproof ice snow type
Three core overhead insulated cables of middle pressure be above-mentioned aerial insulated cable, it the following steps are included:
Step 1: the preparation of conductor: conductor 1 is pressed by multiply aluminium single line is twisted, and tightening factor 90%, conductor strand is equal
It is even, close, any surface finish impulse- free robustness；
Step 2: the preparation of conductor shield and insulating layer: conductor shield 2 and insulating layer 3 use double-layer coextrusion technique, complete to seal
Close chemical crosslinking；Conductor shield 2 uses 10kV grades of cross-linking type semiconductive shieldin materials, and conductor shield is closely extruded in conductor 1
It on outer wall, and is easily peeled off without damaging conductor, does not remain semiconductive shieldin material in 1 gap of conductor after conductor shield 2 is removed；
Insulating layer 3 uses 10kV grades of weather-proof water resistant tree-shaped peroxide crosslinked polyethylene Insulation Materials, and insulating layer thinnest point is not less than nominal
Value × 90%mm, and the degree of eccentricity is not more than 10%；Without eyesight visible bubble in bubble and sand holes, form wire wicking surface on 3 cross section of insulating layer
It is smooth, without obvious twisted wire burr；It coats closely knit between insulating layer 3 and conductor shield 2, must not there is char particle, air gap or impurity to deposit
?；
Step 3: the preparation of water blocking layer: using semiconductor waterstop overlapping on core, putting up width and block water for semiconductive
20-30% with bandwidth；Wrapped rear surface must not have corrugation, flange, bottom pour ladle, flash stitch or outer diameter uneven, continuously wrapped partly to lead
Cable longitudinal water-blocking performance can be improved in electric waterstop；
Step 4: the preparation of APL aluminum plastic laminate sheath: APL aluminum plastic laminate sheath is overlapped on core longitudinal using double-sided aluminum plastic composite band 5
Heat-sealing cladding, aluminium-plastic tape nominal thickness are 0.2mm, the 20-30% that width is aluminium-plastic tape bandwidth are put up, using hot wind
Welding is secured；Sheath 6 is closely extruded outside aluminium-plastic tape using black linear low density polyethylene protective cover material, makes itself and plastic-aluminum
Composite band reliable bond, forms APL aluminum plastic laminate sheath, and 6 thinnest point of sheath is not less than nominal value × 85%mm, and cable core appearance circle
Whole, out-of-roundness is not more than 10%；Single-core cable 10 form after 6 surface of sheath it is smooth, smooth, should not have wedge angle, point, burn or
Abrasive trace, without the visible bubble of eyesight and sand holes on cross section；
Step 5: the preparation of support frame: 3 grades of intensity steel wires are twisted into as carrying steel core 9 and heat steel core 8, it is low with thermoplasticity
Density polyethylene will carry steel core 9 and heating steel core 8 extrudes into shape of a saddle support frame 7, and the outer rim of support frame 7 is uniformly distributed, and there are three recessed
Slot 11, carrying steel core 9 are located at the center of support frame 7, and heating steel core 8 is distributed in the outside of carrying steel core 9 by 120 °, heat steel core
8 with 7 outer rim of support frame on 11 arranged for interval of groove；
Step 6: stranding: three single-core cables 10 are subjected to marking mark, are sequentially fixed in three grooves 11 of support frame 7,
Dextrad twisted synthesizing cable, laying up pitch are 55-75 times of 10 outer diameter of single-core cable.
Cable prepared by the present invention when in use, to avoid forming a large amount of icing phenomenons on cable, can be heated at three
Apply certain voltage on steel core 8, since the self-resistance of heating steel core 8 is larger, the temperature of support frame 7 can be improved moment, made
The ice dissolution of cable surface avoids shaft tower load-bearing is overweight from safe distribution of electric power accident occur.
Carrying steel core is arranged at support frame center in the present invention, can enhance the tensile capacity of cable；It is arranged in support frame
Steel core is heated, the ice and snow of cable outer layer condensation can be melted, avoid shaft tower load-bearing overweight.Water blocking layer uses semiconductor waterstop,
Overlapping, once encountering outside moisture infiltration, can expand rapidly on core, and then prevent moisture further to inside cable
Sprawling, can be improved cable longitudinal water-blocking performance.APL aluminum plastic laminate sheath using double-sided aluminum plastic composite band, longitudinally wrap on cable core by heat-sealing
It covers, closely extrudes layer of polyethylene sheath outside aluminium-plastic tape, make itself and aluminium-plastic tape excellent bonds, form bonding sheath,
Cable radial water-resisting, humidity resistance are promoted, avoids cable from gradually going deep into insulating inner because of the erosion of rainwater and insulation is caused to occur
Punch-through.
Claims (8)
1. pressing three core overhead insulated cables in a kind of tension waterproof ice snow type, it includes the single-core cable of three equivalent specifications
(10) it is evenly distributed with support frame (7), the outer rim of support frame (7) there are three groove (11), three single-core cables (10) are fixed on groove
(11) in, it is characterised in that: the center of support frame as described above (7) is equipped with carrying steel core (9), and the periphery of carrying steel core (9) presses 120 °
It is uniformly distributed that there are three heating steel core (8), heating steel core (8) and groove (11) intervals to be arranged；Three single-core cable (10) dextrad are twisted
Stranding, laying up pitch are 55-75 times of single-core cable (10) outer diameter.
2. pressing three core overhead insulated cables in tension waterproof ice snow type according to claim 1, it is characterised in that: described
Single-core cable (10) includes conductor (1), conductor shield (2), insulating layer (3), water blocking layer (4) and APL aluminum plastic laminate shield from the inside to the outside
Layer, APL aluminum plastic laminate sheath are overlapped longitudinal heat-sealing cladding using double-sided aluminum plastic composite band (5) on core, and aluminium-plastic tape (5) is outside
Side closely extrudes layer of polyethylene sheath (6), sheath (6) and aluminium-plastic tape (5) excellent bonds, forms APL aluminum plastic laminate sheath.
3. pressing three core overhead insulated cables in tension waterproof ice snow type according to claim 2, it is characterised in that: described
Water blocking layer (4) is overlapped on core by semiconductor waterstop, puts up the 20-30% that width is semiconductor waterstop bandwidth.
4. pressing three core overhead insulated cables in tension waterproof ice snow type according to claim 1 or 2 or 3, feature exists
In: the carrying steel core (9) and heating steel core (8) are all made of 3 grades of intensity steel wires.
5. pressing three core overhead insulated cables in tension waterproof ice snow type according to claim 4, it is characterised in that: described
The outer diameter for carrying steel core (9) is greater than the outer diameter of heating steel core (8).
6. pressing three core overhead insulated cables in tension waterproof ice snow type according to claim 5, it is characterised in that: described
Aluminium-plastic tape (5) puts up the 20-30% that width is aluminium-plastic tape (5) bandwidth.
7. pressing three core overhead insulated cables in tension waterproof ice snow type according to claim 6, it is characterised in that: described
Sheath (6) is prepared using black linear low density polyethylene.
8. the preparation method of three core overhead insulated cables is pressed in a kind of tension waterproof ice snow type, in the tension waterproof ice snow type
Pressing three core overhead insulated cables is any aerial insulated cable of claim 1 to 7, it the following steps are included:
Step 1: the preparation of conductor: conductor (1) is pressed by multiply aluminium single line is twisted, tightening factor 90%, conductor strand
Uniformly, closely, any surface finish impulse- free robustness；
Step 2: the preparation of conductor shield and insulating layer: conductor shield (2) and insulating layer (3) use double-layer coextrusion technique,
Totally-enclosed chemical crosslinking；Conductor shield (2) uses 10kV grades of cross-linking type semiconductive shieldin materials, and conductor shield is closely extruded in
It on conductor (1) outer wall, and is easily peeled off without damaging conductor, does not remain half in conductor (1) gap after conductor shield (2) removing
Conductive shield material；Insulating layer (3) uses 10kV grades of weather-proof water resistant tree-shaped peroxide crosslinked polyethylene Insulation Materials, and insulating layer is most thin
Point is not less than nominal value × 90%mm, and the degree of eccentricity is not more than 10%；Without eyesight visible bubble in bubble and sand on insulating layer (3) cross section
Eye, form wire wicking surface is smooth, without obvious twisted wire burr；Coated between insulating layer (3) and conductor shield (2) it is closely knit, must not
With the presence of char particle, air gap or impurity；
Step 3: the preparation of water blocking layer: using semiconductor waterstop overlapping on core, putting up width and block water for semiconductive
20-30% with bandwidth；Wrapped rear surface must not have corrugation, flange, bottom pour ladle, flash stitch or outer diameter uneven, continuously wrapped partly to lead
Cable longitudinal water-blocking performance can be improved in electric waterstop；
Step 4: the preparation of APL aluminum plastic laminate sheath: APL aluminum plastic laminate sheath is overlapped on core vertical using double-sided aluminum plastic composite band (5)
It is coated to heat-sealing, aluminium-plastic tape (5) nominal thickness is 0.2mm, puts up the 20-30% that width is aluminium-plastic tape bandwidth, uses
Hot jet welding is secured；Sheath (6) is closely extruded outside aluminium-plastic tape using black linear low density polyethylene protective cover material, makes it
With aluminium-plastic tape reliable bond, APL aluminum plastic laminate sheath is formed, sheath (6) thinnest point is not less than nominal value × 85%mm, and cable core
Appearance rounding, out-of-roundness are not more than 10%；Sheath (6) surface is smooth, smooth after single-core cable (10) molding, should not there is wedge angle, fiber crops
Point is burnt or abrasive trace, without the visible bubble of eyesight and sand holes on cross section；
Step 5: the preparation of support frame: 3 grades of intensity steel wires being twisted into as carrying steel core (9) and heat steel core (8), use thermoplastic
Property low density polyethylene (LDPE) will carry steel core (9) and heat steel core (8) extrude into shape of a saddle support frame (7), the outer rim of support frame (7)
Uniformly distributed there are three groove (11), carrying steel core (9) is located at the center of support frame (7), heats steel core (8) by 120 ° and is distributed in carrying
The outside of steel core (9), heating steel core (8) and groove (11) arranged for interval in support frame (7) outer rim；
Step 6: stranding: three single-core cables (10) being carried out marking mark, are sequentially fixed on three grooves of support frame (7)
(11) in, dextrad twisted synthesizing cable, laying up pitch is 55-75 times of single-core cable (10) outer diameter.
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| CN201910253523.XA CN109830337A (en) | 2019-03-30 | 2019-03-30 | Three core overhead insulated cables and preparation method thereof are pressed in tension waterproof ice snow type |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110578490A (en) * | 2019-09-27 | 2019-12-17 | 中煤科工集团西安研究院有限公司 | electromagnetic fishing system for large-diameter engineering well and special cable thereof |
| CN111430074A (en) * | 2020-04-01 | 2020-07-17 | 嘉兴奥亿普数据电缆有限公司 | Antistatic network line with good stability for rail transit |
| CN111751262A (en) * | 2020-07-18 | 2020-10-09 | 河南通达电缆股份有限公司 | Rapid test method for verifying longitudinal water resistance of conductor |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT303216B (en) * | 1969-07-10 | 1972-11-10 | Philips Nv | Electrical resistance heating cable |
| CN101527405A (en) * | 2008-03-04 | 2009-09-09 | 上海电缆研究所 | Cold end connecting device for heating cable and connecting method thereof |
| CN103428914A (en) * | 2012-05-17 | 2013-12-04 | 河南科信电缆有限公司 | Carbon fiber cable for oil well heating |
| CN204029449U (en) * | 2014-06-10 | 2014-12-17 | 辽宁宝林集团大连金州电缆有限公司 | A kind of bearing-type middle pressure aerial insulated cable that blocks water |
| CN104470009A (en) * | 2014-12-18 | 2015-03-25 | 邱有英 | Cable having heating function |
| CN105405515A (en) * | 2015-12-09 | 2016-03-16 | 江苏荣宜电缆有限公司 | Self-bearing type polyethylene-insulating waterproof power cable |
| CN107945930A (en) * | 2017-12-28 | 2018-04-20 | 无锡江南电缆有限公司 | A kind of pvc sheath braided wires conductor support water-resistant power cable |
| CN208189287U (en) * | 2018-05-24 | 2018-12-04 | 江苏长峰电缆有限公司 | A kind of non magnetic armored type medium-pressure power cable |
| CN209487186U (en) * | 2019-03-30 | 2019-10-11 | 兰州众邦电线电缆集团有限公司 | Three core overhead insulated cables are pressed in tension waterproof ice snow type |
-
2019
- 2019-03-30 CN CN201910253523.XA patent/CN109830337A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT303216B (en) * | 1969-07-10 | 1972-11-10 | Philips Nv | Electrical resistance heating cable |
| CN101527405A (en) * | 2008-03-04 | 2009-09-09 | 上海电缆研究所 | Cold end connecting device for heating cable and connecting method thereof |
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