CN108242778A - Outlet insulating sleeve and its application method - Google Patents
Outlet insulating sleeve and its application method Download PDFInfo
- Publication number
- CN108242778A CN108242778A CN201810213363.1A CN201810213363A CN108242778A CN 108242778 A CN108242778 A CN 108242778A CN 201810213363 A CN201810213363 A CN 201810213363A CN 108242778 A CN108242778 A CN 108242778A
- Authority
- CN
- China
- Prior art keywords
- outlet
- insulating sleeve
- silicon rubber
- section
- main body
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims description 8
- 238000009413 insulation Methods 0.000 claims abstract description 45
- 239000004593 Epoxy Substances 0.000 claims abstract description 35
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 35
- 238000009434 installation Methods 0.000 claims abstract description 14
- 239000000203 mixture Substances 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000011218 segmentation Effects 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims 1
- 238000009422 external insulation Methods 0.000 abstract description 3
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 9
- 239000010959 steel Substances 0.000 description 9
- 238000003466 welding Methods 0.000 description 9
- 239000002184 metal Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000012946 outsourcing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/035—Gas-insulated switchgear
-
- 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
Abstract
The invention discloses a kind of outlet insulating sleeves, it includes outlet casing tube main body, increases section, silicon rubber insulation part, fastening-connecting device and silicon rubber umbrella skirt.Increasing section can splice with outlet casing tube main body, so as to increase outlet casing tube external insulation height.Silicon rubber insulation part and outlet casing tube main body and increase section and be interference fitted, form stable insulating layer, prevent stitching portion electrical body from externally discharging.Silicon rubber umbrella skirt is segmented the epoxy insulation layer surface for being wrapped in outlet insulating sleeve.The present invention provides a kind of outlet insulating sleeve, it is a kind of outlet insulating sleeve of combined and spliced formula, can need to configure suitable casing external insulation height according to different.It can reduce the cost of raw material and alleviate product weight, increase installation strength, be hardly damaged product full skirt, while facilitate the installation positioning of outlet insulating sleeve.
Description
Technical field
The present invention relates to a kind of outlet insulating sleeves, belong to high, medium voltage switchgear equipment field.
Background technology
At present in high, medium voltage switchgear equipment field, the main function of outlet insulating sleeve is by overhead line or cable
High-voltage potential is introduced into the GIS switchgears of metal all-closed formula, the operations such as switching on and off, isolation so as to complete paired transmission line.
Outlet insulating sleeve is in high altitude localities in use, exposed aerial part needs to increase electric clearance, institute
Increased with insulating sleeve needs.The present invention conveniently solves this problem using combined and spliced formula method.
Conductive rod is the component of outlet insulating sleeve current-carrying, and usual conductive rod is process by solid bar, according to electricity
Flow the bar of size selection suitable cross-section size.But the bigger kelvin effect of electric current is bigger, so being made of solid bar
Conductive rod is uneconomical, causes the wasting of resources.
Meanwhile full skirt, the outlet insulating sleeve meeting of conventional epoxy casting is usually distributed in the outside of outlet insulating sleeve
Using the molding full skirt of the epoxy casting of integral type, since entire casing volume is big, weight is big, and being easy in handling process will be convex
The full skirt gone out collides with damage, influences normal use.
The outlet insulating sleeve that GIS switchgears use usually in the female inserts of casing upper, passes through bolt
It is connect with gas tank, once sleeve upper end, by lateral pulling force, the steel plate at the place of being bolted can generate local deformation, serious meeting
Influence sealing performance.
CN203232764U discloses a kind of insulating sleeve, which includes conductive rod, cylindric metallic shield
Net and epoxy body；Metallic shield net is cast in together with conductive rod in epoxy body around conductive rod.
Invention content
For overcome the deficiencies in the prior art, the present invention provides a kind of outlet insulation sleeve for being easy to split and combine installation
Pipe, there are two types of composite assembly forms for it, meet the requirement of low altitude area and high altitude localities respectively；Reduce the cost of raw material simultaneously
And alleviate product weight；Installation strength is increased, the silicon rubber umbrella skirt using elasticity is hardly damaged product full skirt, while side
Outlet insulating sleeve installation positioning.
In order to solve the above-mentioned technical problem, the technical scheme is that：
A kind of outlet insulating sleeve, it includes outlet casing tube main body, increases section, silicon rubber insulation part, fastening-connecting device
And silicon rubber umbrella skirt.
Further, the outlet casing tube main body includes conductive rod, epoxy insulation layer and inner shield ring, and the conductive rod includes
Upper end tubing and lower end bar are cast with epoxy insulation layer on the outside of the conductive rod, be provided in the epoxy insulation layer in
Shading ring, the conductive rod, epoxy insulation layer and inner shield ring are an integral molding structure.
Further, the section that increases includes contact tube and epoxy insulation layer.
Further, the fastening-connecting device includes fastener, right-handed thread set, left hand thread set.
Further, the conductive rod upper end is machined with dextrorotation internal thread, and screw thread is matched with the external screw thread that right-handed thread covers.
Further, the contact tube upper end is machined with dextrorotation internal thread, and screw thread is matched with the external screw thread that right-handed thread covers；
Lower end is machined with levogyrate inner thread, and screw thread is matched with the external screw thread that left hand thread covers.
Further, the right-handed thread set external screw thread is right-handed thread, and set is intermediate to be machined with fastening threaded hole.The left side
It is left hand thread to revolve thread bush external screw thread, and set is intermediate to be machined with through-hole.
Further, silicon rubber insulation part and outlet casing tube main body and increase section contact portion and be interference fitted, silicon rubber insulation
Part outer diameter exceeds the epoxy insulation layer outer diameter for increasing section, part full skirt of the part exceeded as outlet casing tube.
Further, the silicon rubber umbrella skirt interference fit segmentation is wrapped in outlet casing tube main body and increases the epoxy insulation of section
Layer surface.
Further, the conductive rod lower end is provided with the threaded hole of connection.
Further, the outer surface of the epoxy insulation layer includes shielding pit, curved surface, seal groove, determines successively from the bottom up
Position installation groove, small full skirt, circular protrusions face and silicon rubber umbrella skirt mounting surface.
Further, the shielding pit is arranged on the intersection of epoxy insulation layer and conductive rod.
Further, the lower end of the inner shield ring is less than the mounting surface of the outlet insulating sleeve, the inner shield ring
Upper end extends to the circular protrusions face of epoxy insulation layer.
Further, described increase is connected in multistage.
Technical solution of the invention further is：
A kind of application method of outlet insulating sleeve, described sleeve pipe include outlet casing tube main body, increase section, silicon rubber insulation
Part, fastening-connecting device and silicon rubber umbrella skirt composition, in low altitude area in use, only needing outlet casing tube main body, silicon rubber umbrella
Skirt and right-handed thread set it is combined and spliced into outlet insulating sleeve；In high altitude localities in use, needing in outlet casing tube main body
Top increase by one section increase section to increase electric clearance, to meet requirement, can also be arranged as required to increase multistage increase
Gao Jie.
Above-mentioned technical proposal is employed, the present invention has following advantageous effect：
1st, the present invention is adapted to the requirement of different altitude height.In low altitude area, insulating sleeve does not need to install additional
Increase section with regard to requirement can be met；It has been installed additional in high altitude localities and has increased the insulating sleeve of section and disclosure satisfy that requirement.Absolutely
Edge casing uses composite assembly mode, makes parts machining and casting simpler, transports more convenient.
2nd, conductive rod of the invention is used in tubing and bar welded structure form, and welding is using planar friction welding side
Formula can form complete, fine and close weld seam between the entire end face of tubing and bar, ensure that the through-current capability of conductive rod and welding are strong
Degree reduces the cost of raw material, mitigates the weight of product.
3rd, the present invention increases external insulation creep distance by the way of segmented outsourcing silicon rubber umbrella skirt, can be according to filth etc.
The quantity of grade increase and decrease outsourcing silicon rubber umbrella skirt, when being collided with by hard object, outsourcing silicon rubber umbrella skirt will not fragmentation, while can
To serve as casing protection set, protection epoxy insulating layer is injury-free.
4th, the mounting means that the present invention is fixed using fixation clip, while gas tank steel plate connects with outlet insulating sleeve
The tapping connect is welded with metal flange and increases installation strength, and metal flange can install casing with locating sleeve and sealing ring
It is more convenient.
5th, the present invention is using setting shading ring inside epoxy insulation layer, can effectively shield verge of opening on mounting surface,
The concentration field strength of fixation clip and fastener, improves insulation performance.
6th, the present invention can not only use in GIS switchgears, moreover it is possible to be widely used in various switchgears and transformer
Design in, have Social benefit and economic benefit.
Description of the drawings
Fig. 1 is two kinds of composite assembly schematic diagrams of outlet insulating sleeve of the present invention；
Fig. 2 is the sectional view of the insulating sleeve main part of the present invention；
Fig. 3 is the sectional view of the conductive rod of the present invention；
Fig. 4 is the sectional view for increasing section part of the present invention；
Fig. 5 is the mounting structure schematic diagram of the present invention.
Specific embodiment
In order that the present invention can be more clearly and readily understood, it is right below according to specific embodiment and with reference to attached drawing
The present invention is described in further detail.
As shown in Figure 1, a kind of outlet insulating sleeve for being easy to split and combine installation, it includes outlet casing tube main body 1, increases
Height section 2, silicon rubber insulation part 3, fastening-connecting device and silicon rubber umbrella skirt 7.
As shown in Fig. 2, the outlet casing tube main body 1 includes conductive rod 1-1, epoxy insulation layer 1-2 and inner shield ring 1-3,
The conductive rod 1-1 includes upper end tubing 1-1-1 and lower end bar 1-1-2, the upper end tubing 1-1-1 and lower end bar 1-1-
2 using the welding of planar friction welding manner, and the conductive rod 1-1 and inner shield ring 1-3 are integral by poured with epoxy resin, ring
Epoxy insulation layer 1-2 is formed after the molding of oxygen resin solidification.
As shown in figure 4, the section 2 that increases includes contact tube 2-1 and epoxy insulation layer 2-2.
As shown in Figure 1, the fastening-connecting device includes fastener 4, right-handed thread set 5, left hand thread set 6.
As shown in figure 3, the conductive rod 1-1 upper ends are machined with dextrorotation internal thread, the external screw thread of screw thread and right-handed thread set 5
It matches.
As shown in figure 4, the contact tube 2-1 upper ends are machined with dextrorotation internal thread, the external screw thread of screw thread and right-handed thread set 5
It matches；Lower end is machined with levogyrate inner thread, and screw thread is matched with the external screw thread of left hand thread set 6.
As shown in Figure 1, it is right-handed thread that the right-handed thread, which covers 5 external screw threads, set is intermediate to be machined with fastening threaded hole.Institute
It is left hand thread to state left hand thread to cover 6 external screw threads, and set is intermediate to be machined with through-hole.
As shown in Figure 1, the silicon rubber insulation part 3 and outlet casing tube main body 1 and increase 2 contact portions of section and be interference fitted,
Form stable interfacial insulator.3 outer diameter of silicon rubber insulation part exceeds the epoxy insulation layer 2-2 outer diameters for increasing section 2, the part exceeded
Part full skirt as outlet casing tube.
As shown in Figure 1, the silicon rubber umbrella skirt 7 is segmented, according to outlet casing tube main body and the length for increasing 2 parts of section
It spends to set, by being interference fitted the epoxy insulation layer table for being segmented and being wrapped in 1 part of outlet casing tube main body and increasing 2 parts of section
Face.The quantity of silicon rubber umbrella skirt 4 can be increased and decreased according to gradation for surface pollution.
As shown in Figures 1 to 3, the conductive rod 1-1 lower ends are provided with the threaded hole of connection.
As shown in Fig. 2, the outer surface of the epoxy insulation layer 1-2 includes shielding pit 1-2-1, curved surface successively from the bottom up
1-2-2, seal groove 1-2-3, location and installation groove 1-2-4, small full skirt 1-2-5, circular protrusions face 1-2-6 and silicon rubber umbrella skirt peace
Dress face 1-2-7, the small full skirt 1-2-5 are provided with 2.
During installation, the outlet insulating sleeve is placed on vertically on gas tank steel plate 8, the outlet insulating sleeve and gas tank
Metal flange 8-1 is welded in the tapping being connect with outlet insulating sleeve equipped with sealing ring 9, gas tank steel plate 8 between steel plate 8, is increased
Installation strength is added, metal flange 8-1 can position outlet insulating sleeve and sealing ring 9, make the installation of outlet insulating sleeve more square
Just；
Hole among fixation clip 10 passes through the welding screw 8-2 on gas tank steel plate 8, and one end of fixation clip 10 is against gas
On case steel plate 8, the other end of fixation clip 10 is pressed at the location and installation groove 1-2-4 of outlet insulating sleeve, on the outside of gas tank
4~8 welding screw 8-2 uniformly are welded with, by fixation clip 10, nut assembly 11 and welding screw 8-2 by outlet insulation sleeve
Pipe is fixed on gas tank steel plate 8, and ensures air-tightness；
The circular protrusions face 2-6 is used for uniform field strength；
As shown in Fig. 2, the shielding pit 1-2-1 is arranged on the intersection of epoxy insulation layer 1-2 and conductive rod 1-1.
As shown in Fig. 1,2,5, the lower end of the inner shield ring 1-3 is less than the mounting surface of the outlet insulating sleeve, described
The upper end of inner shield ring 1-3 extends to the circular protrusions face 1-2-6 of epoxy insulation layer 1-2.The inner shield ring 1-3 is used to shield
Verge of opening on 8 mounting surface of gas tank steel plate, fixation clip 10, welding screw 8-2 and nut assembly 11 concentration field strength.
As shown in Figure 1, the silicon rubber umbrella skirt 7 includes small one and large one two full skirts, the full skirt for making entire outlet casing tube is high
It is low straggly, prevent full skirt extension and slide sudden strain of a muscle.
In low altitude area in use, only needing outlet casing tube main body 1, silicon rubber umbrella skirt 7 and right-handed thread set 5 combined and spliced
Into outlet insulating sleeve.
In high altitude localities in use, needs, which increase by one section on the top of outlet casing tube main body 1, increases section 2 to increase electrically
Gap, to meet requirement.Also can be arranged as required to, which increases multistage, increases section 2.
Particular embodiments described above, pair present invention solves the technical problem that, technical solution and advantageous effect carry out
It is further described, it should be understood that the above is only a specific embodiment of the present invention, is not limited to this
Invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this hair
Within bright protection domain.
Claims (15)
1. a kind of outlet insulating sleeve, it is characterised in that：Described sleeve pipe includes outlet casing tube main body (1), increases section (2), silicon rubber
Glue insulating part (3), fastening-connecting device and silicon rubber umbrella skirt (7) composition.
2. outlet insulating sleeve according to claim 1, it is characterised in that：The outlet casing tube main body (1) is including conduction
Stick (1-1), epoxy insulation layer (1-2) and inner shield ring (1-3), the conductive rod (1-1) including upper end tubing (1-1-1) and under
Bar (1-1-2) is held, epoxy insulation layer (1-2), the epoxy insulation layer (1-2) are cast on the outside of the conductive rod (1-1)
Inner shield ring (1-3) is inside provided with, the conductive rod (1-1), epoxy insulation layer (1-2) and inner shield ring (1-3) are integrated into
Type structure.
3. outlet insulating sleeve according to claim 1, it is characterised in that：The section (2) that increases includes contact tube (2-1)
With epoxy insulation layer (2-2).
4. outlet insulating sleeve according to claim 1, it is characterised in that：The fastening-connecting device includes fastener
(4), right-handed thread set (5), left hand thread set (6).
5. outlet insulating sleeve according to claim 2, it is characterised in that：Conductive rod (1-1) upper end is machined with the right side
Medial rotation screw thread, screw thread are matched with the external screw thread of right-handed thread set (5).
6. outlet insulating sleeve according to claim 3, it is characterised in that：Contact tube (2-1) upper end is machined with the right side
Medial rotation screw thread, screw thread are matched with the external screw thread of right-handed thread set (5)；Lower end is machined with levogyrate inner thread, screw thread and left-handed spiral shell
The external screw thread of line set (6) matches.
7. outlet insulating sleeve according to claim 4, it is characterised in that：Right-handed thread set (5) external screw thread is right
Screw thread is revolved, set is intermediate to be machined with fastening threaded hole.Left hand thread set (6) external screw thread is left hand thread, covers intermediate process
There is through-hole.
8. outlet insulating sleeve according to claim 1, it is characterised in that：The silicon rubber insulation part (3) and lead collar
Pipe main body (1) and increase section (2) contact portion interference fit, silicon rubber insulation part (3) outer diameter exceed increase section (2) epoxy it is exhausted
Edge layer (2-2) outer diameter, part full skirt of the part exceeded as outlet casing tube.
9. outlet insulating sleeve according to claim 1, it is characterised in that：Silicon rubber umbrella skirt (7) the sectional combination,
It is interference fitted segmentation and is wrapped in outlet casing tube main body (1) and increases the epoxy insulation layer surface of section (2).
10. outlet insulating sleeve according to claim 5, it is characterised in that：Conductive rod (1-1) lower end is provided with connection and uses
Threaded hole.
11. outlet insulating sleeve according to claim 2, characteristic are：The outer surface of the epoxy insulation layer (1-2)
Include shielding pit (1-2-1), curved surface (1-2-2), seal groove (1-2-3), location and installation groove (1-2- successively from the bottom up
4), small full skirt (1-2-5), circular protrusions face (1-2-6) and silicon rubber umbrella skirt mounting surface (1-2-7).
12. outlet insulating sleeve according to claim 11, it is characterised in that：The shielding pit (1-2-1) is arranged on
The intersection of epoxy insulation layer (1-2) and conductive rod (1-1).
13. outlet insulating sleeve according to claim 12, it is characterised in that：The lower end of the inner shield ring (1-3) is low
In the mounting surface of the outlet insulating sleeve, the upper end of the inner shield ring (1-3) extends to the circle of epoxy insulation layer (1-2)
Crowning (1-2-6).
14. outlet insulating sleeve according to claim 1, it is characterised in that：The section (2) that increases is multistage.
15. a kind of application method of the outlet insulating sleeve as described in claim 1~14, described sleeve pipe includes outlet casing tube main body
(1), increase section (2), silicon rubber insulation part (3), fastening-connecting device and silicon rubber umbrella skirt (7) composition, make in low altitude area
Used time, only need outlet casing tube main body (1), silicon rubber umbrella skirt (7) and right-handed thread set (5) it is combined and spliced into outlet insulation sleeve
Pipe；In high altitude localities in use, needs, which increase by one section on the top of outlet casing tube main body (1), increases section (2) to increase electrically
Gap, to meet requirement, can also be arranged as required to, which increases multistage, increases section (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810213363.1A CN108242778B (en) | 2018-03-15 | 2018-03-15 | Outgoing line insulating sleeve and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810213363.1A CN108242778B (en) | 2018-03-15 | 2018-03-15 | Outgoing line insulating sleeve and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108242778A true CN108242778A (en) | 2018-07-03 |
| CN108242778B CN108242778B (en) | 2023-12-05 |
Family
ID=62699977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810213363.1A Active CN108242778B (en) | 2018-03-15 | 2018-03-15 | Outgoing line insulating sleeve and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108242778B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065294A (en) * | 2018-07-04 | 2018-12-21 | 安徽迪康电力科技有限公司 | A kind of wall bushing and its processing technology |
| CN109378177A (en) * | 2018-12-06 | 2019-02-22 | 四川星脉电子科技有限责任公司 | Oil-immersed transformer |
| CN113284681A (en) * | 2021-05-31 | 2021-08-20 | 江西尚高电瓷电气有限公司 | High mountain anti-freezing high-strength porcelain insulator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206301645U (en) * | 2016-12-30 | 2017-07-04 | 厦门唯胜电气有限公司 | A kind of Spliced type insulating sleeve |
-
2018
- 2018-03-15 CN CN201810213363.1A patent/CN108242778B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206301645U (en) * | 2016-12-30 | 2017-07-04 | 厦门唯胜电气有限公司 | A kind of Spliced type insulating sleeve |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109065294A (en) * | 2018-07-04 | 2018-12-21 | 安徽迪康电力科技有限公司 | A kind of wall bushing and its processing technology |
| CN109378177A (en) * | 2018-12-06 | 2019-02-22 | 四川星脉电子科技有限责任公司 | Oil-immersed transformer |
| CN113284681A (en) * | 2021-05-31 | 2021-08-20 | 江西尚高电瓷电气有限公司 | High mountain anti-freezing high-strength porcelain insulator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108242778B (en) | 2023-12-05 |
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