CN106058734B - Reparation structure and method between military service insulated conductor and support insulator - Google Patents
Reparation structure and method between military service insulated conductor and support insulator Download PDFInfo
- Publication number
- CN106058734B CN106058734B CN201610615429.0A CN201610615429A CN106058734B CN 106058734 B CN106058734 B CN 106058734B CN 201610615429 A CN201610615429 A CN 201610615429A CN 106058734 B CN106058734 B CN 106058734B
- Authority
- CN
- China
- Prior art keywords
- insulated conductor
- support insulator
- reparation
- periphery
- layer
- 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.)
- Active
Links
- 239000004020 conductor Substances 0.000 title claims abstract description 81
- 239000012212 insulator Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 24
- 230000004888 barrier function Effects 0.000 claims abstract description 19
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 30
- 239000007788 liquid Substances 0.000 claims description 19
- 235000019441 ethanol Nutrition 0.000 claims description 9
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 7
- 239000002390 adhesive tape Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000007062 hydrolysis Effects 0.000 claims description 4
- 238000006460 hydrolysis reaction Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims 2
- 230000008439 repair process Effects 0.000 abstract description 6
- 230000006698 induction Effects 0.000 abstract description 4
- 239000000853 adhesive Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 240000005572 Syzygium cordatum Species 0.000 description 5
- 235000006650 Syzygium cordatum Nutrition 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- -1 siloxanes Chemical class 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000002429 anti-coagulating effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008263 repair mechanism Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
Landscapes
- Insulating Bodies (AREA)
- Processing Of Terminals (AREA)
Abstract
The present invention relates to the reparation structure between a kind of insulated conductor of military service and support insulator, including support insulator, insulated conductor, insulated conductor is arranged in the groove on support insulator top, insulated conductor two ends are located at outside support insulator, insulated conductor is bundled through band and support insulator and fixed, insulated conductor periphery is provided with reparation, between reparation periphery and band, at least provided with one layer of enhancement layer between insulated conductor periphery and groove, enhancement layer includes the hydrophobic layer for being arranged at reparation periphery, it is arranged on the insulating barrier of hydrophobic layer periphery, insulating self-adhesive band is provided with outside enhancement layer, the present invention is simple in construction, it is simple in construction, set reasonable, repair operating process simple, enhancing has been carried out to insulated conductor of being on active service to repair, obtain the suspended insulated guide wire that can continue to be on active service, improve military service insulated conductor and support insulator, intensity and hydrophobic ability between bandage, reduce thunder and lightning induction voltage, prevent insulated overhead conductor from breaking.
Description
Technical field
The present invention relates to the reparation structure between a kind of insulated conductor of military service and support insulator and method.
Background technology
Aerial insulated wire (Aerial insulation line) under arms during, before broken string, often led in insulation
The fixing point gap location of line and support insulator turns into weak link, and water, dust etc. is accumulated between binding strap and insulated conductor, entered
One step promotes insulating barrier aging, ultimately results in the corrosion of aluminium strand, and the movement of corrosion product and dielectric meeting anti-coagulating action electric arc makes arc
Root, which rests on breakdown point burning, causes ablation.The ageing resistace of insulating barrier is at least 70 years in theory.Because technology for binding, absolutely
Spacing between edge etc. have impact on the penalty of fixing point, and service life is substantially reduced.With the continuous deterioration of running environment
With increasingly frequently occurring for extreme weather, the problem of insulated overhead conductor exposes increasingly causes everybody attention, wherein, thunder and lightning
Induced overvoltage is the main cause for causing insulated overhead conductor to break.Produce after thunder and lightning induction voltage reason and send out by analysis
It is existing：The main cause for causing thunder and lightning induction voltage is in the formation generation local damage of insulating barrier most weakness under the effect of certain factor
（Pin hole) caused by.Therefore, can before insulating barrier is also without broken string completely in order to improve the service ability of military service insulated conductor
To extend its life-span by repairing and increasing hydrophobic layer, the water-treeing problem for running cable is external once using a kind of past
Cable core is blown into the mode of dry gas（N2）To dispel the moisture in insulating barrier, then toward cable core inject a kind of dielectric liquid.Later again
Develop a kind of organosilicon and repair liquid, make it into water tree region, occur hydrolysis and condensation reaction consumption moisture with water, and generate
Organic matter fills water tree cavity, so as to suppress water tree growth.In recent years in material synthesis processes, using Nano filling to exhausted
Edge material is modified extensively using inorganic nano metal oxide filler such as nanoscale TiO2、A12O3, MgO, ZnO etc., not
Relate to repair water-treeing cable insulation using inorganic nano-filler.Week, triumphant grade received siloxanes recovery technique with inorganic
Rice technology of preparing is combined, and a kind of reparation liquid of alkoxide using siloxanes and Titanium as main component is made, it is diffused into
Water tree region carries out insulation reparation, generation Organic-inorganic composite filler filling water tree cavity（Week is triumphant etc., XLPE cable insulations
The inorganic repair mechanisms and analysis of experiments of water-treeing, High-Voltage Technology, 2014,40（1）：67-73）, preferable effect is obtained,
Although these reparations can improve the performance of insulating barrier, the intensity and hydrophobic between binding strap and insulator fixing point can not be improved
Property, and composite filled thing is essentially powdered, can come off in the air, influences performance.
The content of the invention
In order to overcome the deficiencies in the prior art, there is provided the reparation between a kind of insulated conductor of military service and support insulator
Structure and method.
The technical scheme is that, the reparation structure between a kind of insulated conductor of military service and support insulator, including
Support insulator, insulated conductor, the insulated conductor are arranged in the groove on support insulator top, and insulated conductor two ends are located at
Outside support insulator, insulated conductor is bundled through band and support insulator and fixed, and the insulated conductor periphery is provided with reparation and applied
Layer, the length of reparation is contacted not less than band with insulated conductor outside the interval length of the colligation to be formed, the reparation
At least provided with one layer of enhancement layer between week and band, between insulated conductor periphery and groove, the enhancement layer includes being arranged at
Insulating self-adhesive band is provided with outside the hydrophobic layer of reparation periphery, the insulating barrier for being arranged on hydrophobic layer periphery, enhancement layer.
Further, the hydrophobic layer coats or is wrapped in insulated conductor periphery, and insulating barrier is wrapped in hydrophobic layer periphery.
Further, the insulating barrier is electro-insulating rubber.
Further, enhancement layer two ends exceed insulated conductor and the colligation position of band or insulated conductor and support insulator
Each 30 mm in both sides at the position of contact.
Further, groove footpath big 1-10 mm of the diameter of enhancement layer than groove.
Further, the reparation is the mixed coating of organotin, silester and butyl titanate.
Restorative procedure between a kind of insulated conductor of military service and support insulator, comprises the following steps：
（1）Band is untied, insulated conductor is separated with support insulator；
（2）Liquid is repaired in configuration：Machine tin liquor body, silester liquid, butyl titanate liquid are taken, by volume fraction 1:3 difference
Absolute ethyl alcohol is dissolved in, by the ethanol solution of the ethanol solution of obtained organotin and silester, the ethanol solution of butyl titanate
One or both of mixing, organic Theil indices are no more than metallic atom percentage 20% in mixed liquor, and mixed liquor is placed on sealedly
24h is stood in vial, intense hydrolysis is prevented；
（3）Liquid is repaired to the coating of insulated conductor periphery, liquid to be repaired is hydrolyzed naturally becomes solid, forms reparation；
（4）Enhancement layer is set in insulated conductor and band colligation position, insulated conductor and support insulator contact site, first
One layer of hydrophobic material of first coating or colligation constitutes hydrophobic layer, then wraps up one layer of abrasive rubber and constitutes insulating barrier, enhancement layer two ends
Each 30 mm in both sides at the position contacted beyond the colligation position or insulated conductor of insulated conductor and band with support insulator；
（5）The colligation rubber self-adhesive tape outside enhancement layer, completes the reparation of insulated conductor；
（6）The insulated conductor after reparation and support insulator are bundled by band and fixed.
Compared with prior art, the invention has the advantages that：It is simple in construction, set reasonable, repair operating process
Simply, enhancing has been carried out to insulated conductor of being on active service to repair, the insulating materials after reparation has preferable insulating properties, anti-aging energy
Power, obtains the suspended insulated guide wire that can continue to be on active service, improves strong between military service insulated conductor and support insulator, bandage
Degree and hydrophobic ability, reduce thunder and lightning induction voltage, prevent insulated overhead conductor from breaking, and solve reparation product in running
In the problem of come off.
Brief description of the drawings
Make further details of elaboration to the present invention with reference to the accompanying drawings and detailed description.
Fig. 1 is the attachment structure schematic diagram of insulated conductor and support insulator；
Fig. 2 is the reparation structural representation of insulated conductor.
In figure：
1- insulated conductors；2- support insulators；3- bands；4- enhancement layers；401- hydrophobic layers；402- insulating barriers；5- insulate
Self-adhesive tape；6- reparations.
Embodiment
As shown in Figure 1-2, the reparation structure between a kind of insulated conductor of military service and support insulator, including post insulator
Son 2, insulated conductor, insulated conductor described in 1 are arranged in the groove on the top of support insulator 2, and the two ends of insulated conductor 1 are located at pillar
Outside insulator 2, insulated conductor 1 is bundled through band 3 and support insulator 2 and fixed, and the periphery of insulated conductor 1 is provided with reparation and applied
Layer 6, the length of reparation 6 contacts the interval length of the colligation formed not less than band 3 with insulated conductor 1, and the reparation is applied
Wrapped between 6 periphery of layer and band 3, between the periphery of insulated conductor 1 and groove at least provided with one layer of enhancement layer 4, the enhancement layer 4
The insulating barrier 402 for include and be arranged at the hydrophobic layer 401 of the periphery of reparation 6, being arranged on the periphery of hydrophobic layer 401, to further enhance
Structural behaviour improves and is provided with insulating self-adhesive band 5 outside service life, enhancement layer 4.
In the present embodiment, the hydrophobic layer 401 coats or is wrapped in the periphery of insulated conductor 1, and insulating barrier 402 is wrapped in thin
The periphery of water layer 401.
In the present embodiment, the insulating barrier 402 is electro-insulating rubber.
In the present embodiment, the two ends of enhancement layer 4 are beyond insulated conductor 1 and the colligation position of band 3 or insulated conductor 1 and branch
Each 30 mm in both sides at the position that post insulator 2 is contacted, to improve rubbing between insulator and suspended insulated guide wire caused by fine motion
Wipe, improve service life.
In the present embodiment, to ensure after colligation fixation more firmly, groove footpath big 1-10 of the diameter than groove of enhancement layer 4
mm。
In the present embodiment, the reparation is the mixed coating of organotin, silester and butyl titanate.
Restorative procedure between a kind of insulated conductor of military service and support insulator, comprises the following steps：
（1）Band is untied, insulated conductor is separated with support insulator；
（2）Liquid is repaired in configuration：Machine tin liquor body, silester liquid, butyl titanate liquid are taken, by volume fraction 1:3 difference
Absolute ethyl alcohol is dissolved in, by the ethanol solution of the ethanol solution of obtained organotin and silester, the ethanol solution of butyl titanate
One or both of mixing, organic Theil indices are no more than metallic atom percentage 20% in mixed liquor, and mixed liquor is placed on sealedly
24h is stood in vial, intense hydrolysis is prevented；
（3）Liquid is repaired to the coating of insulated conductor periphery, liquid to be repaired is hydrolyzed naturally becomes solid, forms reparation；
（4）Enhancement layer is set in insulated conductor and band colligation position, insulated conductor and support insulator contact site, first
One layer of hydrophobic material of first coating or colligation constitutes hydrophobic layer, then wraps up one layer of abrasive rubber and constitutes insulating barrier, enhancement layer two ends
Each 30 mm in both sides at the position contacted beyond the colligation position or insulated conductor of insulated conductor and band with support insulator；
（5）The colligation rubber self-adhesive tape outside enhancement layer, completes the reparation of insulated conductor；
（6）The insulated conductor after reparation and support insulator are bundled by band and fixed.
The foregoing is only presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, should all belong to the covering scope of the present invention.
Claims (1)
1. the restorative procedure between a kind of insulated conductor of military service and support insulator, it is characterised in that：The insulation of being on active service
Reparation structure between wire and support insulator includes support insulator, insulated conductor, and the insulated conductor is arranged at pillar
In the groove on insulator top, insulated conductor two ends are located at outside support insulator, and insulated conductor is tied through band and support insulator
Strapped fixed, the insulated conductor periphery is provided with reparation, and the length of reparation is contacted not less than band with insulated conductor
The interval length of the colligation of formation, at least sets between the reparation periphery and band, between insulated conductor periphery and groove
One layer of enhancement layer is equipped with, the enhancement layer includes being arranged at the hydrophobic layer of reparation periphery, is arranged on the exhausted of hydrophobic layer periphery
Rubber self-adhesive tape is provided with outside edge layer, enhancement layer, the hydrophobic layer is coated or is wrapped in insulated conductor periphery, and insulating barrier is wrapped in
Hydrophobic layer periphery, the insulating barrier is abrasive rubber, and enhancement layer two ends exceed insulated conductor and the colligation position of band or insulation
Each 30 mm in both sides at the position that wire is contacted with support insulator, groove footpath big 1-10 mm of the diameter than groove of enhancement layer；
Restorative procedure comprises the following steps：
（1）Band is untied, insulated conductor is separated with support insulator；
（2）Liquid is repaired in configuration：Organotin liquid, silester liquid, butyl titanate liquid are taken, by volume fraction 1:3 difference are molten
Enter absolute ethyl alcohol, by the ethanol solution of the ethanol solution of obtained organotin and silester, the ethanol solution of butyl titanate
One or two kinds of mixing, organic Theil indices are no more than metallic atom percentage 20% in mixed liquor, and mixed liquor is placed on sealed glass
24h is stood in glass bottle, intense hydrolysis is prevented；
（3）Liquid is repaired to the coating of insulated conductor periphery, liquid to be repaired is hydrolyzed naturally becomes solid, forms reparation；
（4）Enhancement layer is set in insulated conductor and band colligation position, insulated conductor and support insulator contact site, first coated
Or one layer of hydrophobic material of colligation constitutes hydrophobic layer, then wrap up one layer of abrasive rubber and constitute insulating barrier, enhancement layer two ends are beyond exhausted
Each 30 mm in both sides at the position that the colligation position or insulated conductor of edge wire and band are contacted with support insulator；
（5）The colligation rubber self-adhesive tape outside enhancement layer, completes the reparation of insulated conductor；
（6）The insulated conductor after reparation and support insulator are bundled by band and fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610615429.0A CN106058734B (en) | 2016-08-01 | 2016-08-01 | Reparation structure and method between military service insulated conductor and support insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610615429.0A CN106058734B (en) | 2016-08-01 | 2016-08-01 | Reparation structure and method between military service insulated conductor and support insulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106058734A CN106058734A (en) | 2016-10-26 |
| CN106058734B true CN106058734B (en) | 2017-10-20 |
Family
ID=57197080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610615429.0A Active CN106058734B (en) | 2016-08-01 | 2016-08-01 | Reparation structure and method between military service insulated conductor and support insulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106058734B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106910577A (en) * | 2017-04-20 | 2017-06-30 | 华北电力大学（保定） | A kind of changeable type composite suspension type insulators arc-blowing device |
| CN109728559B (en) * | 2019-01-31 | 2024-02-09 | 国网福建省电力有限公司 | Overhead insulated cable fixing device and fixing method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4332849A (en) * | 1980-11-28 | 1982-06-01 | Amp Incorporated | Cold shrink cable repair device |
| CN101728792A (en) * | 2010-01-21 | 2010-06-09 | 四川大学 | Electrified repair device for cross-inked polyethylene power cable and electrified repair method thereof |
| CN102427210A (en) * | 2011-08-12 | 2012-04-25 | 大连联合高分子材料有限公司 | Quick repair piece for external insulation breakage of non-thermal-shrinkage electrical wire and cable |
| CN104009421A (en) * | 2014-06-10 | 2014-08-27 | 国家电网公司 | Aerial insulation wire electrification repairing method |
| CN104134954A (en) * | 2014-08-23 | 2014-11-05 | 永济新时速电机电器有限责任公司 | Traction motor outgoing line cable insulation damage repair method |
| CN105119208A (en) * | 2015-09-16 | 2015-12-02 | 广东韶钢松山股份有限公司 | High-voltage cable insulation breakage repairing process |
| CN205944889U (en) * | 2016-08-01 | 2017-02-08 | 国网福建省电力有限公司 | Repair structure between insulated wire and post insulators has been on active service |
-
2016
- 2016-08-01 CN CN201610615429.0A patent/CN106058734B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4332849A (en) * | 1980-11-28 | 1982-06-01 | Amp Incorporated | Cold shrink cable repair device |
| CN101728792A (en) * | 2010-01-21 | 2010-06-09 | 四川大学 | Electrified repair device for cross-inked polyethylene power cable and electrified repair method thereof |
| CN102427210A (en) * | 2011-08-12 | 2012-04-25 | 大连联合高分子材料有限公司 | Quick repair piece for external insulation breakage of non-thermal-shrinkage electrical wire and cable |
| CN104009421A (en) * | 2014-06-10 | 2014-08-27 | 国家电网公司 | Aerial insulation wire electrification repairing method |
| CN104134954A (en) * | 2014-08-23 | 2014-11-05 | 永济新时速电机电器有限责任公司 | Traction motor outgoing line cable insulation damage repair method |
| CN105119208A (en) * | 2015-09-16 | 2015-12-02 | 广东韶钢松山股份有限公司 | High-voltage cable insulation breakage repairing process |
| CN205944889U (en) * | 2016-08-01 | 2017-02-08 | 国网福建省电力有限公司 | Repair structure between insulated wire and post insulators has been on active service |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106058734A (en) | 2016-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106058734B (en) | Reparation structure and method between military service insulated conductor and support insulator | |
| CN101436449B (en) | High voltage, ultra-high voltage power cable capable of suppressing electrical tree generation inside the insulating layer | |
| CN205944889U (en) | Repair structure between insulated wire and post insulators has been on active service | |
| CN204391657U (en) | A kind of transmission line insulator sheath | |
| CN103997007B (en) | The inclined to one side arc protection device of a kind of power transmission line wind | |
| CN105788775A (en) | Needle type composite insulator for 10 kV transmission line | |
| CN102982883A (en) | Insulation water retaining aerial cable and manufacture method thereof | |
| CN104065020B (en) | A kind of midium voltage cable adnexa defect model based on RTV coating | |
| CN101329935B (en) | External insulation casing pipe for 500 kv sulfur hexafluoride current mutual inductor | |
| CN209675829U (en) | A kind of 10kV insulator crossarm conducting wire installation pulley bracket | |
| CN102938278A (en) | Lightning protection insulator used for 10KV insulated wire | |
| CN207459685U (en) | A kind of shrinkage cable outdoor terminal | |
| CN101807458A (en) | Epoxy glass fiber lining porcelain composite hollow insulator for high-voltage electrical appliances | |
| CN205595141U (en) | Compound column type anti -broken thread insulator of fault indication type | |
| CN201629188U (en) | Epoxy glass fiber bush and porcelain composite hollow insulator for high-voltage electric appliances | |
| CN203951135U (en) | The inclined to one side arc protection device of a kind of power transmission line wind | |
| CN207690575U (en) | A kind of composite rod insulator | |
| CN107331480A (en) | Indicating fault type composite column-type wire-break prevention insulator | |
| CN201629187U (en) | Lightning prevention insulator of power transmission lines | |
| CN206976937U (en) | It is a kind of isolating the seal of pin insulator | |
| CN106448947B (en) | A kind of method for improving transmission line of electricity the air gap coverage | |
| CN206429030U (en) | Many Lei Yuchongwu areas tangent suspension towers used for transmission line | |
| CN205881593U (en) | Reinforcing structure between insulated wire and post insulators | |
| CN204216538U (en) | 10kV insulated overhead line | |
| CN204696630U (en) | 110kV dry type silicone rubber for cable terminal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |