CN106207935A - The insulation protecting device of distribution transmission line and electric power means of defence - Google Patents
The insulation protecting device of distribution transmission line and electric power means of defence Download PDFInfo
- Publication number
- CN106207935A CN106207935A CN201610702691.9A CN201610702691A CN106207935A CN 106207935 A CN106207935 A CN 106207935A CN 201610702691 A CN201610702691 A CN 201610702691A CN 106207935 A CN106207935 A CN 106207935A
- Authority
- CN
- China
- Prior art keywords
- thermal shrinkage
- shrinkage type
- full skirt
- stress tube
- type stress
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
- H01B17/58—Tubes, sleeves, beads, or bobbins through which the conductor passes
- H01B17/583—Grommets; Bushings
- H01B17/586—Grommets; Bushings with strain relief arrangements
-
- 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
- H02G15/007—Devices for relieving mechanical stress
Landscapes
- Insulating Bodies (AREA)
Abstract
The invention discloses insulation protecting device and the electric power means of defence of a kind of distribution transmission line.Described insulation protecting device includes: for being socketed in the first thermal shrinkage type stress tube at position to be protected of described distribution transmission line, the second thermal shrinkage type stress tube being socketed on described first thermal shrinkage type stress tube and being socketed in the full skirt parts on described second thermal shrinkage type stress tube.Apparatus of the present invention and method use double stress tube to control electric field stress, can effectively control shelf depreciation, it is ensured that electric wire and adnexa safe operation.
Description
Technical field
The present invention relates to cable accessory field, particularly relate to insulation protecting device and the electric power of a kind of distribution transmission line
Means of defence.
Background technology
Cable accessory is to connect cable and electric line and the product of relevant power distribution equipment, refers generally in cable run each
Planting the middle of cable to connect and terminal connection, it constitutes power delivery networks together with cable；Cable accessory is mainly according to electricity
The characteristic of cable structure, can recover the performance of cable, ensures again the prolongation of cable length and the connection of terminal.
The cable accessory of mesohigh mainly has thermal shrinkage type and cold-contraction type two kinds at present.Wherein, existing thermal shrinkage type cable accessory
Because enclasping force is inadequate, electric lines of force distortion is more serious, therefore can not control electric field stress very well, generally there is shelf depreciation and do not conform to
Lattice, antifouling work, anti-tracking performance are weak and electricity consumption exists the problems such as potential safety hazard.
Summary of the invention
In order to overcome the defect of above-mentioned prior art, the technical problem to be solved in the present invention is to provide a kind of distribution transmission line
The insulation protecting device on road and electric power means of defence.
For solving above-mentioned technical problem, the insulation protecting device of a kind of distribution transmission line in the present invention, including:
For being socketed in the first thermal shrinkage type stress tube at the position to be protected of described distribution transmission line, being socketed in described
The second thermal shrinkage type stress tube on one thermal shrinkage type stress tube and be socketed in the full skirt parts on described second thermal shrinkage type stress tube.
Further, the first insulation being provided with between described first thermal shrinkage type stress tube and described second thermal shrinkage type stress tube
Pipe.
Further, described full skirt parts include the second insulation tube being provided with full skirt；
Described full skirt and described second insulation tube are injection all-in-one-piece structure.
Further, the composition of described full skirt parts includes polyolefin, fire retardant and auxiliary agent.
Further, by mass percentage: described polyolefin 60-70%；Described fire retardant 25-35%；Described auxiliary agent 1-
10%.
For solving above-mentioned technical problem, the method that the employing said apparatus in the present invention carries out electric power protection, including step:
Described first thermal shrinkage type stress tube is socketed in the position to be protected of distribution transmission line；
First thermal shrinkage type stress tube described in heat shrink；
Described second thermal shrinkage type stress tube, and the second thermal shrinkage type stress tube described in heat shrink are set；
Described full skirt parts are socketed on described second thermal shrinkage type stress tube.
Further, the described step arranging described second thermal shrinkage type stress tube specifically includes:
First insulative pipe sleeve is connected on described first thermal shrinkage type stress tube；
First insulated sleeve described in heat shrink；
Described second thermal shrinkage type stress tube is socketed on described first insulated sleeve.
Further, described full skirt parts include the second insulation tube being provided with full skirt；Described full skirt parts use following side
Prepared by formula:
The masterbatch mixed is added into extrusion equipment, by described extrusion equipment described masterbatch is extruded and set to injection
Standby；
By described injection-moulding device by the full skirt component shape injection all-in-one-piece structure preset；
Injection all-in-one-piece structure is carried out cross-linking radiation and forms semi-finished product；
Carry out described semi-finished product heating, expanding and after cooling and shaping, form described full skirt parts.
Further, the composition of described masterbatch includes polyolefin, fire retardant and auxiliary agent.
Further, by mass percentage: described polyolefin 60-70%；Described fire retardant 25-35%；Described auxiliary agent 1-
10%.
The present invention has the beneficial effect that:
Apparatus of the present invention and method use double stress tube to control electric field stress, can effectively control shelf depreciation, it is ensured that
Electric wire and adnexa safe operation；Existing cold shrinking power cable adjunct electric field stress is controlled well, has again heat-shrink cable accessory intensity good, seals
The advantage of performance, is highly suitable under the adverse circumstances such as high ferro, motor-car, ironmaking running use.
Accompanying drawing explanation
Fig. 1 is the use view of the insulation protecting device of a kind of distribution transmission line in the embodiment of the present invention.
Detailed description of the invention
In order to solve problem of the prior art, the invention provides insulation protecting device and the electricity of a kind of distribution transmission line
Power means of defence, below in conjunction with accompanying drawing and embodiment, is further elaborated to the present invention.Should be appreciated that this place
The specific embodiment described, only in order to explain the present invention, does not limit the present invention.
Fig. 1 is mounted in the insulation protecting device of a kind of distribution transmission line at the position to be protected of distribution transmission line
Schematic diagram.As it is shown in figure 1, insulation protecting device (abbreviation preventer) bag of a kind of distribution transmission line in the embodiment of the present invention
Include:
For being socketed in the first thermal shrinkage type stress tube 11 at the position to be protected of described distribution transmission line 21, being socketed in institute
State the second thermal shrinkage type stress tube 12 on the first thermal shrinkage type stress tube 11 and be socketed on described second thermal shrinkage type stress tube 12
Full skirt parts.
Wherein full skirt parts include the second insulation tube 141 being provided with full skirt 142.
When using this preventer, this preventer is inserted in treating of the good distribution transmission line 21 of stripping in advance
Protection position, then adds heat fixation.Wherein the position to be protected of distribution transmission line 21 is specially as shown in right side in Fig. 1
The position of stripping insulation layer 22.
The insulation protecting device of the embodiment of the present invention controls electric field stress by double stress tubes, can effectively control local
Electric discharge, it is ensured that distribution transmission line and adnexa safe operation, and there is high dielectric property, there is good seal performance installation light soon
Victory, has preferable mechanical strength and weatherability, and installing space is little and has IV class B insulation gradation for surface pollution；Furtherly, double should
Solenoid effectively strengthens enclasping force, and the second stress tube effectively alleviates the distortion of distribution transmission line (such as high-voltage cable), effectively
Avoiding mesohigh heat-shrink cable accessory shelf depreciation and exceed standard-required, long-term office puts and exceeds standard and will cause asking of cable breakdown
Topic, has antifouling work, anti-tracking performance by force, reduces electricity consumption and there is potential safety hazard.
The insulation protecting device existing cold shrinking power cable adjunct electric field stress of the embodiment of the present invention is controlled well, the spy of integration
Point, has again heat-shrink cable accessory intensity good, and the advantage of sealing property is highly suitable under the adverse circumstances such as high ferro, motor-car, ironmaking
Run and use.
In an embodiment of the invention, described first thermal shrinkage type stress tube 11 and described second thermal shrinkage type stress tube
The first insulation tube 13 being provided with between 12.
By increasing by the first insulation tube 13 in present embodiment, increase enclasping force further.
In yet another embodiment of the present invention, described full skirt parts include the second insulation tube being provided with full skirt；
Described full skirt and described second insulation tube are injection all-in-one-piece structure.
Present embodiment is by rain skirt and insulation tube unitary design, it is ensured that creep age distance, meets little space mounting.And have
There is shelf depreciation little, good weather resisteant, creep resistance and have higher mechanical strength, good insulating properties is durable in use
Etc. advantage.If in the distribution transmission line for electric locomotive and electrical network, electric locomotive being provided with electric power netting safe running
Try hard to keep barrier.
In the further embodiment of the present invention, the composition of described full skirt parts includes polyolefin, fire retardant and auxiliary agent.
Furtherly, by mass percentage: described polyolefin 60-70%；Described fire retardant 25-35%；Described auxiliary agent 1-
10%.Such as, polyolefin 65%；Fire retardant 30%, other auxiliary agents 5%.
In full skirt, each composition is in the ratio in present embodiment, further enhancing the insulating protection effect of electric power, enters one
Step reduces shelf depreciation, has good weather resisteant, creep resistance and has higher mechanical strength, good insulating properties,
The advantage such as durable in use.
Based on the insulation protecting device shown in Fig. 1, present invention further propose that preventer shown in employing Fig. 1 carries out electric power
The method of protection, including step:
Step 1, is socketed in the position to be protected of distribution transmission line by described first thermal shrinkage type stress tube；
Step 2, the first thermal shrinkage type stress tube described in heat shrink；
Step 3, arranges described second thermal shrinkage type stress tube, and the second thermal shrinkage type stress tube described in heat shrink；Alleviation is joined
Electrical transmission lines (such as electric lines of force) distorts；
Described full skirt parts are socketed on described second thermal shrinkage type stress tube by step 4.
It is to say, as it is shown in figure 1, use insulation protecting device carry out electric power protection time, by this insulation protecting device
Being enclosed within the cable connecting part position needing protection, the most subsequently heat shrink is fixed.
In an embodiment of the invention, the described step arranging described second thermal shrinkage type stress tube specifically includes:
Step 31, is connected on the first insulative pipe sleeve on described first thermal shrinkage type stress tube；
Step 32, the first insulated sleeve described in heat shrink；For strengthening enclasping force；
Step 33, is socketed in described second thermal shrinkage type stress tube on described first insulated sleeve.
In yet another embodiment of the present invention, described full skirt parts include the second insulation tube being provided with full skirt；Institute
Stating full skirt parts uses following manner to prepare:
Step 41, is added into extrusion equipment by the masterbatch mixed, by described extrusion equipment described masterbatch extruded to
Injection-moulding device；
Step 42, by described injection-moulding device by the full skirt component shape injection all-in-one-piece structure preset；
Step 43, carries out injection all-in-one-piece structure cross-linking radiation and forms semi-finished product；
Described semi-finished product are carried out heating, expanding and after cooling and shaping, form described full skirt parts by step 44.
It is to say, the masterbatch pellet mixed is added into extruder and injection machine, through mould extrusion, it is molded into
Type, then carries out cross-linking radiation.Product after cross-linking radiation carries out heating, expands, be exactly finished product after cooling and shaping.
Furtherly, the composition of described masterbatch includes polyolefin, fire retardant and auxiliary agent.
Specifically, by mass percentage: described polyolefin 60-70%；Described fire retardant 25-35%；Described auxiliary agent 1-
10%.Such as, polyolefin 65%；Fire retardant 30%, other auxiliary agents 5%.
The inventive method uses double stress tube to control electric field stress, can effectively control shelf depreciation, it is ensured that distribution passes
Lines and adnexa safe operation, full skirt ensures creep age distance with insulation tube injection all-in-one-piece design, meets little space mounting.
In the present invention, method existing cold shrinking power cable adjunct electric field stress is controlled well, and the feature of integration has again pyrocondensation cable attached
Part intensity is good, the advantage of sealing property, is highly suitable under the adverse circumstances such as high ferro, motor-car, ironmaking running use.
Although This application describes the particular example of the present invention, but those skilled in the art can be general without departing from the present invention
Variant of the invention is designed on the basis of thought.Those skilled in the art, under the inspiration that the technology of the present invention is conceived, are not taking off
On the basis of present invention, it is also possible to the method for the present invention is made various improvement, this still falls at the protection model of the present invention
Within enclosing.
Claims (10)
1. the insulation protecting device of a distribution transmission line, it is characterised in that including:
For being socketed in the first thermal shrinkage type stress tube at the position to be protected of described distribution transmission line, being socketed in described first heat
The second thermal shrinkage type stress tube on contracting formula stress tube and be socketed in the full skirt parts on described second thermal shrinkage type stress tube.
2. device as claimed in claim 1, it is characterised in that described first thermal shrinkage type stress tube and described second thermal shrinkage type should
The first insulation tube being provided with between solenoid.
3. device as claimed in claim 1 or 2, it is characterised in that described full skirt parts include that be provided with full skirt second is exhausted
Edge pipe；
Described full skirt and described second insulation tube are injection all-in-one-piece structure.
4. device as claimed in claim 3, it is characterised in that the composition of described full skirt parts include polyolefin, fire retardant and
Auxiliary agent.
5. device as claimed in claim 4, it is characterised in that by mass percentage: described polyolefin 60-70%；Described resistance
Combustion agent 25-35%；Described auxiliary agent 1-10%.
6. use the device as claimed in claim 1 method that carries out electric power protection, it is characterised in that include step:
Described first thermal shrinkage type stress tube is socketed in the position to be protected of distribution transmission line；
First thermal shrinkage type stress tube described in heat shrink；
Described second thermal shrinkage type stress tube, and the second thermal shrinkage type stress tube described in heat shrink are set；
Described full skirt parts are socketed on described second thermal shrinkage type stress tube.
7. method as claimed in claim 6, it is characterised in that the described step arranging described second thermal shrinkage type stress tube is concrete
Including:
First insulative pipe sleeve is connected on described first thermal shrinkage type stress tube；
First insulated sleeve described in heat shrink；
Described second thermal shrinkage type stress tube is socketed on described first insulated sleeve.
Method the most as claimed in claims 6 or 7, it is characterised in that described full skirt parts include that be provided with full skirt second is exhausted
Edge pipe；Described full skirt parts use following manner to prepare:
The masterbatch mixed is added into extrusion equipment, by described extrusion equipment, described masterbatch is extruded to injection-moulding device；
By described injection-moulding device by the full skirt component shape injection all-in-one-piece structure preset；
Injection all-in-one-piece structure is carried out cross-linking radiation and forms semi-finished product；
Carry out described semi-finished product heating, expanding and after cooling and shaping, form described full skirt parts.
9. method as claimed in claim 8, it is characterised in that the composition of described masterbatch includes polyolefin, fire retardant and auxiliary agent.
10. method as claimed in claim 9, it is characterised in that by mass percentage: described polyolefin 60-70%；Described resistance
Combustion agent 25-35%；Described auxiliary agent 1-10%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610702691.9A CN106207935A (en) | 2016-08-22 | 2016-08-22 | The insulation protecting device of distribution transmission line and electric power means of defence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610702691.9A CN106207935A (en) | 2016-08-22 | 2016-08-22 | The insulation protecting device of distribution transmission line and electric power means of defence |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106207935A true CN106207935A (en) | 2016-12-07 |
Family
ID=57524655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610702691.9A Pending CN106207935A (en) | 2016-08-22 | 2016-08-22 | The insulation protecting device of distribution transmission line and electric power means of defence |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106207935A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107994536A (en) * | 2018-01-05 | 2018-05-04 | 长园电子（东莞）有限公司 | A kind of electric railway 27.5kV pyrocondensation tags and preparation method thereof |
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| CN205489427U (en) * | 2016-03-17 | 2016-08-17 | 沈阳艾克虎牌线缆有限公司 | Fire prevention cable terminal connectors |
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| CN201365095Y (en) * | 2009-01-16 | 2009-12-16 | 深圳市惠程电气股份有限公司 | 10 and 35 KV metal tube bus terminal insulated and shielded by vulcanized silicon rubber |
| CN101696296A (en) * | 2009-10-28 | 2010-04-21 | 江苏达胜热缩材料有限公司 | Semiconductor low-voltage flume-retardant single-wall thermal shrinkage pipe and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107994536A (en) * | 2018-01-05 | 2018-05-04 | 长园电子（东莞）有限公司 | A kind of electric railway 27.5kV pyrocondensation tags and preparation method thereof |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |
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| RJ01 | Rejection of invention patent application after publication |