CN205989354U - A kind of microsection manufacture device of power distribution network cable cross-linking polyethylene layer - Google Patents
A kind of microsection manufacture device of power distribution network cable cross-linking polyethylene layer Download PDFInfo
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- CN205989354U CN205989354U CN201620561656.5U CN201620561656U CN205989354U CN 205989354 U CN205989354 U CN 205989354U CN 201620561656 U CN201620561656 U CN 201620561656U CN 205989354 U CN205989354 U CN 205989354U
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- Prior art keywords
- bracing frame
- cable
- cushion block
- screw rod
- central authorities
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- 238000004132 cross linking Methods 0.000 title claims abstract description 16
- 238000009826 distribution Methods 0.000 title claims abstract description 15
- 239000004698 Polyethylene Substances 0.000 title claims abstract description 14
- -1 polyethylene Polymers 0.000 title claims abstract description 14
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 13
- 238000005520 cutting process Methods 0.000 claims abstract description 44
- 238000003780 insertion Methods 0.000 claims abstract description 6
- 230000037431 insertion Effects 0.000 claims abstract description 6
- 210000004247 hand Anatomy 0.000 claims 1
- 229920003020 cross-linked polyethylene Polymers 0.000 abstract description 21
- 239000004703 cross-linked polyethylene Substances 0.000 abstract description 21
- 238000012360 testing method Methods 0.000 abstract description 17
- 238000009413 insulation Methods 0.000 abstract description 14
- 230000032683 aging Effects 0.000 abstract description 9
- 238000005259 measurement Methods 0.000 abstract description 8
- 230000003595 spectral effect Effects 0.000 abstract description 8
- 238000003745 diagnosis Methods 0.000 abstract description 4
- 240000005572 Syzygium cordatum Species 0.000 description 6
- 235000006650 Syzygium cordatum Nutrition 0.000 description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 3
- 239000005977 Ethylene Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 150000001336 alkenes Chemical class 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
This utility model is related to a kind of microsection manufacture device of power distribution network cable cross-linking polyethylene layer, belongs to the diagnosis of cross-inked polyethylene power cable major insulation Hidden fault and life cycle management ageing state assessment technology field.The bracing frame of this device is fixed on base, lower pressure screw rod is arranged on the central authorities of bracing frame, the upper end of lower pressure screw rod is provided with and pushes handle, the lower end of lower pressure screw rod is provided with and pushes circular cushion block, cutting knife insertion pushes in the mounting groove of circular cushion block lower surface, and cutting knife is maintained at the central authorities of bracing frame by upper screw handle and upper arc cushion block；Cable to be cut is placed on described base, and cable to be cut is located at the central authorities of bracing frame, and is maintained at the central authorities of bracing frame by arc lower cushion block and lower screw handle.This device not only meets the test product size requirements of crosslinked polyethylene dielectric loss spectral characteristic measurement, also greatly improves test product make efficiency, and once cutting can meet 2～4 measurements, and multiple test also can improve the accuracy of test result.
Description
Technical field
This utility model is related to a kind of microsection manufacture device of power distribution network cable cross-linking polyethylene layer, belongs to crosslinked poly-
The diagnosis of ethylene power cable major insulation Hidden fault and life cycle management ageing state assessment technology field.
Background technology
With developing rapidly of city and modern industry, crosslinked polyethylene (XLPE) power cable is excellent electric due to it
Performance and transmission capacity are big, heat-resist, be readily bent, be widely used the advantages of attachment tab is simple, mounting and installation facilitates
In city transmission line of electricity and power distribution network.In dry environment, the electric property of cable insulation is very superior, but cable puts into
After operation, the effect of the factor such as electric, hot, moist, mechanical, chemical will be subject to occur aging.Research shows, water tree is aging to be
There is the main inducing of insulation breakdown in wet condition in XLPE cable.The formation of water tree is relevant with factors, and exopathogenic factor is main
It is the joint effect of electric field and moisture, be substantially to be determined by the characteristic of material itself.Also all with cable in practical situations both
Many use conditions are inseparable, and such as water tree forms soluble ion in the size being subject to electric field and action time, temperature, hydraulic pressure and water
Impact etc. factor.Once generating water tree in running, it can be continuous with its tip field intensity in growth course
Concentrate and be converted into electric branch, electric branch then may make cable insulation breakdown in a short time, thus having an accident.Water tree
The XLPE insulated power cable circuit that to be transformed into electric branch be after operation 15～20 years occurs cable body to puncture operation troubles
Main cause.
Gather in order to timely grasp distribution XLPE cable water tree, electrical tree aging process degree, effectively assessment cable cross-linking
The ageing state of ethylene major insulation, State Grid Corporation of China Q/GDW 1168-2013《Power transmission and transformation equipment state overhauling testing regulationss》、
International Electrical Electronic Engineering Association standard IEEE 400.2-2001 prevailing for the time being in force《IEEE Guide for FieldTesting
And Evaluation of the Insulation of Shielded Power Cable System has shielding power cable
System insulation layer field test is guided with evaluating》, International Electrical Electronic Engineering Association issued for approval standard IEEE P400.2/D9-
2010《IEEE Guide for Field Testing of Shielded Power Cable Systems Using Very
Low Frequency (VLF) Revision Sep 2010 has shielding power cable system ultralow frequency method field test to guide》
All the aging of power cable major insulation is evaluated with the dielectric dissipation factor of crosslinked polyethylene major insulation material Deng national and foreign standards
State, the Hidden fault of diagnosis power cable.Dielectric loss spectral characteristic refers to the dielectric loss value of material with applying outward exchange
The Changing Pattern of electric voltage frequency, different dielectric loss spectrum curves can effectively reflect power cable cross-linking polyethylene materials not
Same degree of aging.
The Novo Control Wide-band dielectric of measurement crosslinked polyethylene dielectric loss spectral characteristic curve general at present damages
Consumption Frequency tester a size of diameter 30mm, thickness 1mm it is desirable to crosslinked polyethylene test product is cut into slices.And power distribution network electric power is electric at present
Cable center area includes 150,240,300,400,500,630 square millimeters of several regular sizes according to through-current capability design.
Content of the invention
The purpose of this utility model is to propose a kind of microsection manufacture device of power distribution network cable cross-linking polyethylene layer, fits
Survey that Frequency tester carry out crosslinked polyethylene dielectric loss spectral characteristic curve is lost for Novo Control Wide-band dielectric
Amount, in order to evaluate the ageing state of power cable major insulation, the Hidden fault of diagnosis power cable.
The utility model proposes power distribution network cable cross-linking polyethylene layer microsection manufacture device, including：Base,
Support, lower pressure screw rod and cutting knife；Described bracing frame is fixed on base, and described lower pressure screw rod is arranged in bracing frame
Centre, the upper end of lower pressure screw rod is provided with and pushes handle, and the lower end of lower pressure screw rod is provided with and pushes circular cushion block, and described cutting knife inserts
Push in the mounting groove of circular cushion block lower surface, cutting knife is maintained in bracing frame by upper screw handle and upper arc cushion block
Centre；Cable to be cut is placed on described base, and cable to be cut is located at the central authorities of bracing frame, and passes through arc lower cushion block and lower screw rod
Handle is maintained at the central authorities of bracing frame.
The utility model proposes power distribution network cable cross-linking polyethylene layer microsection manufacture device, cutting knife is made as
Circle, during cutting cable cross-linking polyethylene major insulation, cutting knife is along cable major insulation week long axis side for energy Reliable guarantee
To cutting, after the completion of once cutting, the coaxial cutting knife changing the little 2mm of diameter is cut again, and maximum can get crosslinked poly- second
Alkene major insulation external diameter is circumference, thickness is the annular crosslinked polyethylene thin slice of 1mm.Cut along conductor axis direction at an arbitrary position
Cyclotomy annular crosslinked polyethylene thin slice, cleavable go out crosslinked polyethylene major insulation external diameter be circumference, thickness be 1mm the poly- second of crosslinking
Alkene rectangular tab, with the cutting of 30mm round cutter, can make the crosslinked polyethylene Thin Rectangular of 2～4 30mm thickness 1mm simultaneously
Piece, not only meets the test product size requirements of crosslinked polyethylene dielectric loss spectral characteristic measurement, also greatly improves test product and makes
Efficiency, once cutting can meet 2～4 measurements, and multiple test also can improve the accuracy of test result.
Brief description
Fig. 1 be the utility model proposes the microsection manufacture device of power distribution network cable cross-linking polyethylene layer solid
Figure.
Fig. 2 is the annexation schematic diagram pushing circular cushion block and cutting knife in the microsection manufacture device shown in Fig. 1.
In Fig. 1 and Fig. 2,1 it is base, 2 is bracing frame, 3 is upper screw handle, 4 is lower screw handle, 5 is upper arc-shaped pad
Block, 6 arc lower cushion blocks, 7 be cable to be cut, 8 be cutting knife, 9 be lower pressure screw rod, 10 be push handle, 11 be to push circular cushion block,
12 is mounting groove.
Specific embodiment
The utility model proposes power distribution network cable cross-linking polyethylene layer microsection manufacture device, its structure such as Fig. 1
Shown, including：Base 1, bracing frame 2, lower pressure screw rod 9 and cutting knife 8.Bracing frame 2 is fixed on base 1, and lower pressure screw rod 9 is arranged on
The central authorities of bracing frame 2, the upper end of lower pressure screw rod 9 is provided with and pushes handle 10, and the lower end of lower pressure screw rod 9 is provided with and pushes circular cushion block
11.Cutting knife 8 insertion pushes in the mounting groove 12 of circular cushion block 11 lower surface, as shown in Figure 2.Cutting knife 8 is by upper screw handle 3 He
Upper arc cushion block 5 is maintained at the central authorities of bracing frame 2.Cable 7 to be cut is placed on base 1, and passes through arc lower cushion block 6 and lower screw rod
Handle 4 is maintained at the central authorities of bracing frame.
Below in conjunction with accompanying drawing, the work process of this utility model microsection manufacture device is discussed in detail：
Power distribution network cable cross-linking polyethylene slicing device is placed on testing stand, cable 7 to be cut is placed on base 1, and
By arc lower cushion block 6 with graduated lower screw handle 4, cable to be cut is fixed on the central authorities of bracing frame 2 bottom, provides
The pressure in 90 ° of directions of mutual deviation, clamps cable to be cut.Select the cutting knife 8 being relatively large in diameter in one group of cutting knife, cutting knife 8 insertion is pushed
In the mounting groove 12 of circular cushion block 11 lower surface, cutting knife 8 is maintained at bracing frame 2 by upper screw handle 3 and upper arc cushion block 5
Central authorities, during so that cutting knife 8 is moved downward its center all the time with cable 7 central coaxial to be cut.Under rotating down pressing screw rod 9 upper end
Pressure handle 10, pushes circular cushion block 11 and will push cutting knife 8 and cut cable 7 to be cut, as illustrated by the arrows in fig. 1, until cutting knife 8 knife
Mouth is contacted with base 1, completes to cut for the first time.
It is placed in crosslinked polyetylene insulated for cable to be cut 7 center completing to cut for the first time on base 1 again, and by lower arc
Shape cushion block 6 and the central authorities with graduated lower screw handle 4, cable to be cut being fixed on bracing frame 2 bottom.Select one group of cutting knife
The less cutting knife 8 of middle diameter, cutting knife 8 insertion is pushed in the mounting groove 12 of circular cushion block 11 lower surface, cutting knife 8 is by upper screw rod
Handle 3 and upper arc cushion block 5 are maintained at the central authorities of bracing frame 2, be maintained at during cutting knife 8 moves downward its center all the time with treat
Cut cable 7 center crosslinked polyetylene insulated coaxial.Rotating down pressing screw rod 9 upper end push handle 10, push circular cushion block 11
Cutting knife 8 will be pushed, and to cut cable 7 center to be cut crosslinked polyetylene insulated, until cutting knife 8 edge of a knife is contacted with base 1, completes second
Secondary cutting, takes out the crosslinked polyetylene insulated annular thin slice that cable 7 thickness to be cut is 1mm, at an arbitrary position along cable center
Axial a shearing annulus shape crosslinked polyethylene thin slice, can get with one group of cutting knife diameter smaller's circumference as the length of side, thickness is as 1mm
Crosslinked polyethylene rectangular tab.
The crosslinked polyethylene rectangular tab completing second cutting is placed on base, changes the cutting knife 8 of diameter 30mm, will
Cutting knife 8 insertion pushes in the mounting groove 12 of circular cushion block 11 lower surface, and cutting knife 8 is protected by upper screw handle 3 and upper arc cushion block 5
Hold the central authorities in bracing frame 2, rotating down pressing screw rod 9 upper end push handle 10, push circular cushion block 11 and will push cutting knife 8 and cut
Crosslinked polyethylene rectangular tab, until cutting knife 8 edge of a knife is contacted with base 1, obtains a diameter of 30mm, the crosslinking for 1mm for the thickness gathers
The test product of ethylene dielectric loss spectral characteristic measurement.Repeat this process, for different size distribution cable, can get 2～4 directly
Footpath is 30mm, thickness be 1mm crosslinked polyethylene dielectric loss spectral characteristic measurement test product it is adaptable to Novo Control width
Frequency dielectric loss Frequency tester carries out the measurement of crosslinked polyethylene dielectric loss spectral characteristic curve, and test product microsection manufacture is complete
Become.
Claims (1)
1. a kind of microsection manufacture device of power distribution network cable cross-linking polyethylene layer is it is characterised in that include：Base, support
Frame, lower pressure screw rod and cutting knife；Described bracing frame is fixed on base, and described lower pressure screw rod is arranged on the central authorities of bracing frame,
The upper end of lower pressure screw rod is provided with and pushes handle, and the lower end of lower pressure screw rod is provided with and pushes circular cushion block, under described cutting knife insertion
In the mounting groove of the circular cushion block lower surface of pressure, cutting knife is maintained at the central authorities of bracing frame by upper screw handle and upper arc cushion block；
Cable to be cut is placed on described base, and cable to be cut is located at the central authorities of bracing frame, and passes through arc lower cushion block and lower screw rod handss
Handle is maintained at the central authorities of bracing frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620561656.5U CN205989354U (en) | 2016-06-12 | 2016-06-12 | A kind of microsection manufacture device of power distribution network cable cross-linking polyethylene layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620561656.5U CN205989354U (en) | 2016-06-12 | 2016-06-12 | A kind of microsection manufacture device of power distribution network cable cross-linking polyethylene layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205989354U true CN205989354U (en) | 2017-03-01 |
Family
ID=58102492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620561656.5U Expired - Fee Related CN205989354U (en) | 2016-06-12 | 2016-06-12 | A kind of microsection manufacture device of power distribution network cable cross-linking polyethylene layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205989354U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105922310A (en) * | 2016-06-12 | 2016-09-07 | 国家电网公司 | Cut sheet manufacturing device of cable crosslinked polyethylene insulation layer of power distribution network |
| CN108362515A (en) * | 2018-01-29 | 2018-08-03 | 华南理工大学 | A kind of slicing improvement method based on crosslinked cable slicer |
-
2016
- 2016-06-12 CN CN201620561656.5U patent/CN205989354U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105922310A (en) * | 2016-06-12 | 2016-09-07 | 国家电网公司 | Cut sheet manufacturing device of cable crosslinked polyethylene insulation layer of power distribution network |
| CN108362515A (en) * | 2018-01-29 | 2018-08-03 | 华南理工大学 | A kind of slicing improvement method based on crosslinked cable slicer |
| CN108362515B (en) * | 2018-01-29 | 2020-01-14 | 华南理工大学 | Slicing improvement method based on crosslinked cable slicer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170301 Termination date: 20190612 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |