CN106786217A - Distribution network cable failed terminals around packet mode emergency first-aid repair method - Google Patents
Distribution network cable failed terminals around packet mode emergency first-aid repair method Download PDFInfo
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- CN106786217A CN106786217A CN201611078517.8A CN201611078517A CN106786217A CN 106786217 A CN106786217 A CN 106786217A CN 201611078517 A CN201611078517 A CN 201611078517A CN 106786217 A CN106786217 A CN 106786217A
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- Prior art keywords
- wrapped
- tape
- cable
- semi
- insulating tape
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Classifications
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- 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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/14—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for joining or terminating cables
-
- 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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/16—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for repairing insulation or armouring of cables
Abstract
The invention provides a kind of distribution network cable failed terminals around packet mode emergency first-aid repair method.The method comprises the following steps：The wrapped step of first insulating tape, in outer wrapped first insulating tape of the insulating barrier of cable fault terminal, and forms around inclusion；The wrapped step of semi-conductive tape, wrapped semi-conductive tape outside the semi-conductive layer of cable fault terminal and outside the first insulating tape；The wrapped step of second insulating tape, wrapped second insulating tape outside the oversheath of cable fault terminal and outside semi-conductive tape；The wrapped step of water blocking tape, in the outer wrapped water blocking tape of the second insulating tape.Using the first insulating tape, semi-conductive tape, the second insulating tape and water blocking tape, these common cable accessories install auxiliary material to the method that the present invention is provided, and use artificial wrapped mode to set up similar to the Stress Control of cable termination and the hierarchy of insulation with the unfavorable factor for overcoming the cross-section of cable, running environment difference to be brought, improve operating efficiency.
Description
Technical field
The present invention relates to T ＆ D Technology field, should around packet mode in particular to a kind of distribution network cable failed terminals
Anxious emergency repair method.
Background technology
At present, 10kV and 35kV distribution network cables consumption in the urban distribution network of developed area is huge and directly to user
Power supply, the maintenance of its power failure O＆M and fault correction time directly affect the power quality of end user.But due to distribution mesolow
Cable is relatively early in China's developed area application, and its service life is general up to 15~20 years, in prolonged running
In have accumulated the cable and its type of attachment of complexity, therefore the standby redundancy of piece attachments is expired or even because its technology falls
It is eliminated afterwards, if running into the stress-controlling structure layer of such as cable termination and the layering knot of insulation during O＆M repairing
The problems such as damage of structure, then need to be replaced with existing cable accessory, but limited by the cross-section of cable and service condition, attached
Part type selecting, installation and debugging and handle goods and materials and call and increased certain difficulty, undesirably increase service restoration institute
The time for needing, inefficiency is in turn resulted in, economic results in society loss is big, is unfavorable for science, the efficiently maintenance of cable O＆M
The problems such as work is carried out.
The content of the invention
In consideration of it, the present invention propose a kind of distribution network cable failed terminals around packet mode emergency first-aid repair method, it is intended to solve
Limited and ineffective problem by the cross-section of cable caused by changing cable accessory to cable fault terminal in the prior art.
On one side, the present invention propose a kind of distribution network cable failed terminals around packet mode emergency first-aid repair method.The method
Comprise the following steps：The wrapped step of first insulating tape, in outer wrapped first insulating tape of the insulating barrier of cable fault terminal, and forms
Around inclusion；The wrapped step of semi-conductive tape, wrapped semi-conductive tape outside the semi-conductive layer of cable fault terminal and outside the first insulating tape；
The wrapped step of second insulating tape, wrapped second insulating tape outside the oversheath of cable fault terminal and outside semi-conductive tape；Water blocking tape
Wrapped step, in the outer wrapped water blocking tape of the second insulating tape.
Further, above-mentioned distribution network cable failed terminals in packet mode emergency first-aid repair method, the first insulating tape it is wrapped,
To be half overlap wrapped for semi-conductive tape wrapped, the second insulating tape wrapped and water blocking tape wrapped.
Further, above-mentioned distribution network cable failed terminals around packet mode emergency first-aid repair method, the wrapped step of the first insulating tape
In, around inclusion be fusiform around inclusion.
Further, above-mentioned distribution network cable failed terminals around packet mode emergency first-aid repair method, in the wrapped step of the first insulating tape
Also included before rapid：Polished and cleaned in process step, the port of port and semi-conductive layer to insulating barrier.
Further, above-mentioned distribution network cable failed terminals in packet mode emergency first-aid repair method, the wrapped step of semi-conductive tape,
Semi-conductive tape is coated the metal screen layer of cable fault terminal completely.
Further, above-mentioned distribution network cable failed terminals around packet mode emergency first-aid repair method, the wrapped step of the second insulating tape
In, the second insulating tape complete coated insulation layer and the first insulating tape.
Further, above-mentioned distribution network cable failed terminals in packet mode emergency first-aid repair method, the wrapped step of water blocking tape, prevent
Water band coats the second insulating tape completely.
Further, above-mentioned distribution network cable failed terminals around packet mode emergency first-aid repair method, the wrapped step of water blocking tape it
Also include afterwards：Test procedure, pressure test and Partial Discharge Detection experiment are carried out to completing wrapped cable fault terminal.
Further, above-mentioned distribution network cable failed terminals around packet mode emergency first-aid repair method, also wrapped after test procedure
Include：Power transmission step, cable run is accessed by the wrapped cable fault terminal of the completion after experiment.
The present invention these common cable accessory peaces using the first insulating tape, semi-conductive tape, the second insulating tape and water blocking tape
Dress auxiliary material, and using setting up the hierarchy of Stress Control and insulation similar to cable termination by the way of manually wrapped so that
When cable termination is without the standby redundancy changed, do not limited by the cross-section of cable and different running environment using the wrapped method
System, meanwhile, operating efficiency is improve, recover cable termination electric function, should when being not enough cable accessory standby redundancy or missing
Anxious repairing recovers distribution network cable line powering provided auxiliary technological means.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 is the flow chart around packet mode emergency first-aid repair method of distribution network cable failed terminals provided in an embodiment of the present invention；
Fig. 2 be distribution network cable failed terminals provided in an embodiment of the present invention in packet mode emergency first-aid repair method, cable end
The structural representation at end；
Fig. 3 be distribution network cable failed terminals provided in an embodiment of the present invention in packet mode emergency first-aid repair method, first is exhausted
The wrapped schematic diagram of marginal zone and semi-conductive tape；
Fig. 4 is the another flow around packet mode emergency first-aid repair method of distribution network cable failed terminals provided in an embodiment of the present invention
Figure；
Fig. 5 is the another flow around packet mode emergency first-aid repair method of distribution network cable failed terminals provided in an embodiment of the present invention
Figure；
Fig. 6 is the another flow around packet mode emergency first-aid repair method of distribution network cable failed terminals provided in an embodiment of the present invention
Figure.
Specific embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although showing the disclosure in accompanying drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
Limited.Conversely, there is provided these embodiments are able to be best understood from the disclosure, and can be by the scope of the present disclosure
Complete conveys to those skilled in the art.It should be noted that in the case where not conflicting, embodiment in the present invention and
Feature in embodiment can be mutually combined.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Referring to Fig. 1, Fig. 1 is distribution network cable failed terminals provided in an embodiment of the present invention around packet mode emergency first-aid repair method
Flow chart.As illustrated, the method comprises the following steps：
The wrapped step S1 of first insulating tape, in outer wrapped first insulating tape of the insulating barrier of cable fault terminal, and formed around
Inclusion.
Specifically, referring to Fig. 2 and Fig. 3.First, make cable out of service and not charged, then cable fault terminal is removed.
Outside the insulating barrier 2 of cable fault terminal, first insulation of wrapped certain length at a certain distance from the port of semi-conductive layer 3
Band 6, for example, starting wrapped first insulating tape 6 apart from the port 5mm of semi-conductive layer 3 at, it is wrapped to apart from insulating barrier 2 with lead
The position of the step 8cm~15cm of body 1 stops, and is formed around inclusion.During specific implementation, the first insulating tape 6 can insulate for 23#
Band, can be wrapped using continuous multilayer when the first insulating tape 6 is wrapped.First insulating tape 6 can be according to insulating barrier 2 around packet length
Length depending on, the present embodiment does not do any restriction to it.
The wrapped step S2 of semi-conductive tape, wrapped semiconductive outside the semi-conductive layer of cable fault terminal and outside the first insulating tape
Band.
Specifically, with continued reference to Fig. 3, since the port of metal screen layer 4 and semi-conductive layer 3, outside the first insulating tape 6
The semi-conductive tape 7 of wrapped certain length, for example, semi-conductive tape 7 is wrapped to around package surface 3cm~5cm.When wrapped, make partly to lead
Electricity forms cable termination stress-controlling structure layer, and then lifted with 7 ports for being close to metal screen layer 4 and semi-conductive layer 3
The insulating capacity on cable termination inner cable surface.During specific implementation, semi-conductive tape 7 can be 13# semi-conductive tapes 7, semi-conductive tape 7
When wrapped can using continuous multilayer it is wrapped, for example, wrapped 2~3 back and forth.
The wrapped step S3 of second insulating tape, insulate outside the oversheath of cable fault terminal with semi-conductive tape outer wrapped second
Band.
Specifically, in the second insulating tape (not shown) of the wrapped certain length of oversheath 5 and the outside of semi-conductive tape 7,
And then form cable termination external insulation layer.During specific implementation, the second insulating tape can also be 23# insulating tapes, the second insulating tape around
During bag can using continuous multilayer it is wrapped, for example, wrapped 3~5 back and forth.
The wrapped step S4 of water blocking tape, in the outer wrapped water blocking tape of the second insulating tape.
Specifically, the wrapped water blocking tape (not shown) on the outside of the second insulating tape, and then form cable termination outside machine
Tool is protected and stop water layer.During specific implementation, water blocking tape can be 2228# water blocking tapes, can be using company when water blocking tape is wrapped
Continuous multilayer is wrapped, for example, wrapped 2~3 back and forth.
In the present embodiment, using these common cables of the first insulating tape 6, semi-conductive tape 7, the second insulating tape and water blocking tape
Annex installs auxiliary material, and using setting up the layering knot of Stress Control and insulation similar to cable termination by the way of manually wrapped
Structure so that when cable termination is without the standby redundancy changed, the cross-section of cable and different running environment are not received using the wrapped method
Limited, meanwhile, operating efficiency is improve, recover cable termination electric function, it is not enough or scarce cable accessory standby redundancy
Emergency first-aid repair recovers distribution network cable line powering provided auxiliary technological means during mistake.
In above-described embodiment, wrapped, semi-conductive tape 7 wrapped, the second insulating tape the wrapped and waterproof of the first insulating tape 6
To be half overlap wrapped for band wrapped.That is, the first insulating tape 6, semi-conductive tape 7, the second insulating tape and water blocking tape are adopted
Coated with spiral surrounding, also, when carrying out wrapped, band will have the width of half or so to ride over a circle around the band wrapped
On, forward wound cladding is so overlapped, so that the cladding of each band is even closer, ensure the electric function of cable termination
Normally use.
In above-described embodiment, in the wrapped step S1 of the first insulating tape 6, around inclusion be fusiform around inclusion.That is, right
Near wrapped first insulating tape 6 of the outside more layers of insulating barrier 2 of semiconductive port, be conducive to ensureing the electric breathing exercise of cable termination
Energy.
Referring to Fig. 4, Fig. 4 is distribution network cable failed terminals provided in an embodiment of the present invention around packet mode emergency first-aid repair method
Another flow chart.As illustrated, the method comprises the following steps：
Process step S5, is polished and is cleaned to the port of insulating barrier and semi-conductive layer.
Specifically, first, the port to insulating barrier 2 and semi-conductive layer 3 is polished, and during specific implementation, can use sand
Paper is polished.Then, the port of insulating barrier 2 and semi-conductive layer 3 is cleaned using special cable accessory cleaning paper.Tool
When body is implemented, cable accessory cleaning paper can be that non-woven fabrics is combined with alcohol, or other kinds of cable accessory is clear
Clean articles for use, the present embodiment does not do any restriction to it.
The wrapped step S1 of first insulating tape, in outer wrapped first insulating tape of the insulating barrier of cable fault terminal, and formed around
Inclusion.
The wrapped step S2 of semi-conductive tape, wrapped semiconductive outside the semi-conductive layer of cable fault terminal and outside the first insulating tape
Band.
The wrapped step S3 of second insulating tape, insulate outside the oversheath of cable fault terminal with semi-conductive tape outer wrapped second
Band.
The wrapped step S4 of water blocking tape, in the outer wrapped water blocking tape of the second insulating tape.
It should be noted that the wrapped step S1 of the first insulating tape, the wrapped step S2 of semi-conductive tape, the wrapped step of the second insulating tape
Referring to above-described embodiment, the present embodiment will not be repeated here the specific implementation process of the rapid S3 and wrapped step S4 of water blocking tape.
In the present embodiment, the port of insulating barrier 2 and semi-conductive layer 3 is polished and cleaned, it is ensured that the table of insulating barrier 2
Face is smooth, no-sundries attachment and insulating barrier 2 and semi-conductive layer 3 port step at more smooth.
In above-described embodiment, in the wrapped step S2 of semi-conductive tape, semi-conductive tape 7 is coated the gold of cable fault terminal completely
Category screen layer 4, it is achieved thereby that metal screen layer 4 and the port of semi-conductive layer 3 and seamlessly transitting between inclusion.
In above-described embodiment, in the wrapped step S3 of the second insulating tape, the complete coated insulation layer 2 and first of the second insulating tape is exhausted
Marginal zone 6, has further ensured the insulating capacity of cable fault terminal.
In above-described embodiment, in the wrapped step S4 of water blocking tape, water blocking tape coats the second insulating tape completely, and then makes cable event
The machine capability and waterproof ability for hindering terminal are more preferable.
Referring to Fig. 5, Fig. 5 is distribution network cable failed terminals provided in an embodiment of the present invention around packet mode emergency first-aid repair method
Another flow chart.As illustrated, the method comprises the following steps：
Process step S5, is polished and is cleaned to the port of insulating barrier and semi-conductive layer.
The wrapped step S1 of first insulating tape, in outer wrapped first insulating tape 6 of the insulating barrier 2 of cable fault terminal, and forms
Around inclusion.
The wrapped step S2 of semi-conductive tape, it is wrapped with outside the first insulating tape 6 outside the semi-conductive layer 3 of cable fault terminal partly to lead
Electricity band 7.
The wrapped step S3 of second insulating tape, wrapped second is exhausted outside the oversheath 5 of cable fault terminal and outside semi-conductive tape 7
Marginal zone.
The wrapped step S4 of water blocking tape, in the outer wrapped water blocking tape of the second insulating tape.
Test procedure S6, pressure test and Partial Discharge Detection experiment are carried out to completing wrapped cable fault terminal.
Specifically, to completing, wrapped cable fault terminal carries out pressure test and Partial Discharge Detection is tested to have ensured
Into wrapped cable fault terminal zero defect.
It should be noted that the wrapped step S1 of process step S5, the first insulating tape, the wrapped step S2 of semi-conductive tape, second
Referring to above-described embodiment, the present embodiment exists the specific implementation process of the wrapped step S3 of insulating tape and the wrapped step S4 of water blocking tape
This is repeated no more.
In the present embodiment, pressure test and Partial Discharge Detection examination are carried out respectively to completing wrapped cable fault terminal
Test, it is ensured that complete wrapped cable fault terminal zero defect, so the cable run for ensureing security.
Referring to Fig. 6, Fig. 6 is distribution network cable failed terminals provided in an embodiment of the present invention around packet mode emergency first-aid repair method
Another flow chart.As illustrated, the method comprises the following steps：
Polished and cleaned in process step S5, the port of port and semi-conductive layer to insulating barrier.
The wrapped step S1 of first insulating tape, in outer wrapped first insulating tape of the insulating barrier of cable fault terminal, and formed around
Inclusion.
The wrapped step S2 of semi-conductive tape, wrapped semiconductive outside the semi-conductive layer of cable fault terminal and outside the first insulating tape
Band.
The wrapped step S3 of second insulating tape, insulate outside the oversheath of cable fault terminal with semi-conductive tape outer wrapped second
Band.
The wrapped step S4 of water blocking tape, in the outer wrapped water blocking tape of the second insulating tape.
Test procedure S6, pressure test and Partial Discharge Detection experiment are carried out to completing wrapped cable fault terminal.
Power transmission step S7, cable run is accessed by the wrapped cable fault terminal of the completion after experiment.
Specifically, it is thus identified that after the wrapped cable fault terminal zero defect of completion, it is possible to wrapped cable will be completed
Failed terminals are accessed in cable run, continue to convey electric energy.
It should be noted that the wrapped step S1 of process step S5, the first insulating tape, the wrapped step S2 of semi-conductive tape, second
The wrapped step S3 of insulating tape, the specific implementation process of water blocking tape wrapped step S4 and test procedure S6 are referring to above-described embodiment
Can, the present embodiment will not be repeated here.
In the present embodiment, will complete during wrapped and flawless cable fault terminal enters cable run, and then continue defeated
Power transmission energy, has ensured the power quality of user.
To sum up, the cable accessory that these are common using the first insulating tape, semi-conductive tape, the second insulating tape and water blocking tape is installed
Auxiliary material, and using it is artificial it is wrapped by the way of set up the hierarchy of Stress Control and insulation similar to cable termination so that when
When cable termination is without the standby redundancy changed, do not limited by the cross-section of cable and different running environment using the wrapped method,
Meanwhile, operating efficiency is improve, recover cable termination electric function, it is emergent when being not enough cable accessory standby redundancy or missing to rob
Repair recovery distribution network cable line powering provided auxiliary technological means.
Obviously, those skilled in the art can carry out various changes and modification without deviating from essence of the invention to the present invention
God and scope.So, if these modifications of the invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising these changes and modification.
Claims (9)
1. a kind of distribution network cable failed terminals around packet mode emergency first-aid repair method, it is characterised in that comprise the following steps：
In outer wrapped first insulating tape of the insulating barrier of cable fault terminal, and formed around inclusion；
Wrapped semi-conductive tape outside the semi-conductive layer of the cable fault terminal and outside first insulating tape；
Wrapped second insulating tape outside the oversheath of the cable fault terminal and outside the semi-conductive tape；
In the outer wrapped water blocking tape of second insulating tape.
2. distribution network cable failed terminals according to claim 1 around packet mode emergency first-aid repair method, it is characterised in that it is described
The wrapped and described water blocking tape of wrapped, described second insulating tape of wrapped, the described semi-conductive tape of the first insulating tape it is wrapped
It is wrapped partly to overlap.
3. distribution network cable failed terminals according to claim 1 around packet mode emergency first-aid repair method, it is characterised in that it is described
Around inclusion be fusiform around inclusion.
4. distribution network cable failed terminals according to claim 1 around packet mode emergency first-aid repair method, it is characterised in that in institute
Outer wrapped first insulating tape of insulating barrier in cable fault terminal is stated, and formation also included before inclusion：
The port of the insulating barrier and the semi-conductive layer is polished and cleaned.
5. distribution network cable failed terminals according to claim 1 around packet mode emergency first-aid repair method, it is characterised in that it is described
In the outer outer wrapped semi-conductive tape with first insulating tape of semi-conductive layer of the cable fault terminal, by the semi-conductive tape
The metal screen layer of the cable fault terminal is coated completely.
6. distribution network cable failed terminals according to claim 1 around packet mode emergency first-aid repair method, it is characterised in that it is described
In outer outer wrapped second insulating tape with the semi-conductive tape of oversheath of the cable fault terminal, second insulating tape is complete
The insulating barrier and first insulating tape are coated entirely.
7. distribution network cable failed terminals according to claim 1 around packet mode emergency first-aid repair method, it is characterised in that it is described
In the outer wrapped water blocking tape of second insulating tape, the water blocking tape coats second insulating tape completely.
8. distribution network cable failed terminals according to claim 1 around packet mode emergency first-aid repair method, it is characterised in that in institute
State also includes after the outer wrapped water blocking tape of second insulating tape：
Test procedure, pressure test and Partial Discharge Detection experiment are carried out to completing the wrapped cable fault terminal.
9. distribution network cable failed terminals according to claim 8 around packet mode emergency first-aid repair method, it is characterised in that in institute
State to completing also to include after the wrapped cable fault terminal carries out pressure test and Partial Discharge Detection experiment：
Power transmission step, the cable run is accessed by the wrapped cable fault terminal of the completion after experiment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611078517.8A CN106786217B (en) | 2016-11-29 | 2016-11-29 | Wrapping type emergency repair method for distribution network cable fault terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611078517.8A CN106786217B (en) | 2016-11-29 | 2016-11-29 | Wrapping type emergency repair method for distribution network cable fault terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106786217A true CN106786217A (en) | 2017-05-31 |
| CN106786217B CN106786217B (en) | 2020-07-28 |
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ID=58898907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611078517.8A Active CN106786217B (en) | 2016-11-29 | 2016-11-29 | Wrapping type emergency repair method for distribution network cable fault terminal |
Country Status (1)
| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107809097A (en) * | 2017-10-23 | 2018-03-16 | 中车长春轨道客车股份有限公司 | Rail vehicle cable insulation wrapper method for repairing damage |
| CN115065009A (en) * | 2022-06-13 | 2022-09-16 | 广东坚宝电缆有限公司 | Medium-high voltage crosslinked polyethylene insulation fault repair power cable and repair method |
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| US4545830A (en) * | 1982-09-17 | 1985-10-08 | Thomas & Betts Corporation | Method of sealing pressurized electrical cable while under pressure |
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| Publication number | Publication date |
|---|---|
| CN106786217B (en) | 2020-07-28 |
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