CN104517749B - Rainproof insulating bar and there is its brake pull-rod - Google Patents
Rainproof insulating bar and there is its brake pull-rod Download PDFInfo
- Publication number
- CN104517749B CN104517749B CN201310452598.3A CN201310452598A CN104517749B CN 104517749 B CN104517749 B CN 104517749B CN 201310452598 A CN201310452598 A CN 201310452598A CN 104517749 B CN104517749 B CN 104517749B
- Authority
- CN
- China
- Prior art keywords
- shielding portion
- rod
- insulation body
- installing
- tightly connected
- 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
- 238000009413 insulation Methods 0.000 claims abstract description 45
- 238000009434 installation Methods 0.000 claims abstract description 41
- 239000013536 elastomeric material Substances 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 4
- 238000005538 encapsulation Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000012216 screening Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 206010016766 flatulence Diseases 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
Landscapes
- Electric Cable Installation (AREA)
- Insulating Bodies (AREA)
Abstract
The invention provides a kind of rainproof insulating bar and have its brake pull-rod, including the insulation body of rod and the rain cover being set on the insulation body of rod, rain cover includes: above installs set, is set in the periphery of the insulation body of rod hermetically；Lower set of installing, is set in the periphery of the insulation body of rod, upper installation set and lower set interval of installing hermetically and arranges；Shielding portion, shielding portion covers at installs set and the bar segment periphery of the lower insulation body of rod installed between set, and the upper end of shielding portion is tightly connected with upper installation set, and the lower end of shielding portion and lower installation set are tightly connected so that shielding portion covers hermetically sets bar segment.According to the present invention it is possible to improve operator to carry out the safety of livewire work in sleet sky.
Description
Technical field
The present invention relates to power supply engineering field, in particular to a kind of rainproof insulating bar and the brake pull-rod with it.
Background technology
At present, the insulation body of rod on high-tension line brake pull-rod mostly is the smooth body of rod, outside overcast and rainy wet weather, the insulation body of rod
Wall is easily drenched or is condensed water smoke so that the outer wall of the insulation body of rod is charged, operator carry out operating a switch etc. livewire work time, easily
Personal safety to operator damages.
In prior art, sleety weather use umbrella shape rain cover prevent insulate the body of rod drenched, but will insulation body of rod traverse or
During dismounting, the bar segment part being positioned at the insulation body of rod below rain cover is easily wetted, and does not has due insulation effect, there is peace
Full hidden danger；On the other hand, the rain cover of prior art uses rigid plastics, and during improper use, rain cover is yielding or ruptures.
Summary of the invention
It is desirable to provide a kind of rainproof insulating bar and there is its brake pull-rod, operator can be improved and carry in sleet sky
The safety of electricity operation.
To achieve these goals, according to an aspect of the invention, it is provided a kind of rainproof insulating bar, including the insulation body of rod and
Being set in the rain cover on the insulation body of rod, rain cover includes: above installs set, is set in the periphery of the insulation body of rod hermetically；Lower peace
Encapsulation, is set in the periphery of the insulation body of rod, upper installation set and lower set interval of installing hermetically and arranges；Shielding portion, shielding portion cover sets
In the upper bar segment periphery installing set and the lower insulation body of rod installed between set, the upper end of shielding portion is tightly connected with upper installation set, hides
The lower end covering portion is tightly connected so that shielding portion covers hermetically sets bar segment with lower installation set.
Further, shielding portion includes: upper shielding portion, the upper end of upper shielding portion is tightly connected with upper installation set, upper shielding portion
Periphery is provided with the shirt rim extended downwardly and outwardly, and the outer of shirt rim is higher than the end face of the lower end of upper shielding portion；Lower shielding portion,
The upper end of lower shielding portion is sheathed on the lower end periphery of shielding portion, and the upper end end face of lower shielding portion is higher than the outer of shirt rim, lower screening
The lower end covering portion is tightly connected with lower installation set.
Further, upper shielding portion includes the multiple first loudspeaker sections the most sequentially coaxially connected, wherein the first of bottom
The stub end of loudspeaker section is arranged upward, and the little head end of remaining the first loudspeaker section is arranged upward, and the first loudspeaker section topmost
Little head end is tightly connected with upper installation set, and the little head end of the first loudspeaker section of bottom forms the lower end of shielding portion, with bottom
The stub end of adjacent the first loudspeaker section of the first loudspeaker section form shirt rim.
Further, lower shielding portion is the second loudspeaker section, and the little head end of the second loudspeaker section is tightly connected with lower installation set, the second loudspeaker
The stub end of section is sheathed on the periphery of the little head end of the first loudspeaker section of bottom.
Further, shielding portion includes shield ring, and the upper end of shield ring is tightly connected with upper installation set, the lower end of shield ring with under
Installation set is tightly connected.
Further, shielding portion also includes the expansion segment downwardly extended being positioned at shield ring bottom and being wholely set with shield ring, expands
Open section to arrange with being gradually increased relative to lower set diameter of installing.
Further, upper installation set and lower set of installing are made up of elastomeric material, and/or shielding portion is made up of elastomeric material.
Further, upper installation set and/or lower installation set are fixed with the insulation body of rod by the way of shrinkage and are connected.
According to another aspect of the present invention, it is provided that a kind of brake pull-rod for transmission line of electricity, brake pull-rod includes rainproof insulating bar,
Rainproof insulating bar is aforesaid rainproof insulating bar.
Application technical scheme, owing to having upper installation set, lower set and the shielding portion installed, upper installation set and lower installation set
Being set in the periphery of the insulation body of rod hermetically, the upper end of shielding portion is tightly connected with upper installation set, the lower end of shielding portion and lower installation
Set is tightly connected, and shielding portion covers at installs set and the bar segment periphery of the lower insulation body of rod installed between set, the bar of the insulation body of rod
It is interior to keep this bar segment to be in drying regime that section can be sealingly arranged in shielding portion, it is ensured that the insulating properties of the insulation body of rod, therefore
Operator can be improved and carry out the safety of livewire work in sleet sky.
Accompanying drawing explanation
The Figure of description of the part constituting the application is used for providing a further understanding of the present invention, and the present invention's is schematic real
Execute example and illustrate for explaining the present invention, being not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the structural representation of rainproof insulating bar according to embodiments of the present invention；
Fig. 2 shows the structural representation of the rain cover of the rainproof insulating bar according to alternate embodiment of the present invention.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.
Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As it is shown in figure 1, the rainproof insulating bar of the embodiment of the present invention includes insulating the body of rod 2 and be set on the insulation body of rod 2 rainproof
Cover 1.Rain cover 1 includes installation set 11, lower installation set 12 and shielding portion 13.
Wherein, upper set 11 of installing is set in the periphery of the insulation body of rod 2 hermetically；Lower set 12 of installing is set in the insulation body of rod hermetically
The periphery of 2, upper installation set 11 and lower set 12 interval of installing are arranged.Shielding portion 13 covers at installation set 11 and lower installation set 12
Between the bar segment periphery of the insulation body of rod 2, the upper end of shielding portion 13 with upper install to overlap 11 be tightly connected, the lower end of shielding portion 13
It is tightly connected so that shielding portion 13 covers hermetically sets above-mentioned bar segment with lower set 12 of installing.
By above-mentioned setting, when this rain cover 1 supports the use with the insulation body of rod 2, the part bar segment of the insulation body of rod 2 can be close
It is internal to keep this bar segment to be in drying regime that feud is arranged at shielding portion 13, even if other position of the insulation body of rod 2 is drenched,
Insulation body of rod entirety also will not be charged, so that it is guaranteed that the insulating properties of rainproof insulating bar, therefore can improve operator at sleet
It carries out the safety of livewire work.
In the present embodiment specifically, upper set 11 of installing has upper installing hole, and lower installation set 12 has lower installing hole.Wherein, upper peace
Dress hole, lower installing hole diameter all with insulate the body of rod 2 outside diameter seal coordinate.Above-mentioned arrange, during to prevent the rainy day, rainwater
The bar segment of the insulation body of rod within entrance shielding portion 13.
As it is shown in figure 1, in embodiments of the invention, the upper end of the insulation body of rod 2 has operating head.Operator utilize this operation
Outdoor high pressure equipment such as is operated a switch at the livewire work by head.
As it is shown in figure 1, in embodiments of the invention, shielding portion 13 includes shielding portion 131 and lower shielding portion 132.Shielding portion
13 use the structure that above-mentioned split is arranged, and can be easily installed and dismantle.
Wherein, the upper end of upper shielding portion 131 11 is tightly connected with upper set of installing, the periphery of upper shielding portion 131 be provided with downwards and
Outward extending shirt rim, and the outer of shirt rim is higher than the end face of the lower end of upper shielding portion 131.The upper end of lower shielding portion 132 is sheathed
In the lower end periphery of upper shielding portion 131, and the upper end end face of lower shielding portion 132 is higher than the outer of shirt rim, lower shielding portion 132
Lower end is tightly connected with lower set 12 of installing.
In embodiments of the invention, it is preferable that upper shielding portion 131 includes multiple first loudspeaker the most sequentially coaxially connected
Section.
Wherein, the stub end of the first loudspeaker section 1312 being positioned at bottom is arranged upward, the little head end court of remaining the first loudspeaker section
Upper setting, and the little head end of the first loudspeaker section 1311 topmost overlaps 11 be tightly connected with upper installation, the first loudspeaker section of bottom
The little head end of 1312 forms the lower end of shielding portion 131, the stub end of the first loudspeaker section adjacent with the first loudspeaker section of bottom
The shirt rim of shielding portion 131 in formation.
As shown in Figure 2, it is preferable that lower shielding portion 132 is the second loudspeaker section.The little head end of the second loudspeaker section and lower installation set 12
Being tightly connected, the stub end of the second loudspeaker section is sheathed on the periphery of the little head end of the first loudspeaker section of bottom.
By above-mentioned setting, (contrary with the structure shown in Fig. 1 when the rainproof insulating bar shown in Fig. 1 is in inversion state
Direction), form counterflow-preventing portion between shirt rim and the first loudspeaker section 1312 of bottom of upper shielding portion 131, during the rainy day, as
During the periphery of the little head end covering at the first loudspeaker section of bottom for the stub end of the second loudspeaker section of lower shielding portion 132, second
The end face of the stub end of loudspeaker section contacts the liquid-tight envelope of formation with the liquid being positioned at counterflow-preventing portion, prevents the impurity such as rainwater from entering and covers
In the annular seal space that portion 131 and lower shielding portion 132 are formed, so that it is guaranteed that the insulating properties of rainproof insulating bar, therefore can improve behaviour
Make personnel and carry out the safety of livewire work in sleet sky.
In order to strengthen water-resistant performance, can be as required at the sheathed multiple spaced rain covers 1 on the body of rod 2 that insulate.Wherein, many
The volume of individual rain cover can be different.
Fig. 2 shows the structural representation of the rain cover of alternate embodiment of the present invention.As in figure 2 it is shown, the replacement in the present invention is real
Executing in example, shielding portion 13 includes shield ring.The upper end of shield ring is tightly connected with upper set 11 of installing, the lower end of shield ring and lower peace
Encapsulation 12 is tightly connected.
As in figure 2 it is shown, in the alternate embodiment of the present invention, it is preferable that shielding portion also include being positioned at shield ring bottom and with cover
The expansion segment downwardly extended that ring is wholely set.Expansion segment is arranged relative to lower set 12 diameters of installing with being gradually increased.Specifically,
Expansion segment has horn opening, and this horn opening is directed away from lower one end installing set 12.
By above-mentioned setting, the globule can be easy to and flow down along expansion segment, prevent water from flowing into the inside of shielding portion 13, it is ensured that to be positioned at screening
Cover in portion 13 insulation the body of rod 2 bar segment be dried.
In the present embodiment, rain cover is preferably made up of elastomeric material.In a preferred embodiment, the upper installation of rain cover
Set 11 and/or lower installation set 12 are fixed with the insulation body of rod 2 by the way of shrinkage and are connected.
Above-mentioned arrange, rain cover elastic preferably, no matter in the environment of flatulence of heat type or shrinkage, the upper installation set 11 of rain cover
And/or lower set 12 of installing can seal with the insulation body of rod 2 and coordinate, thus strengthen water-resistant performance.Further, the covering of rain cover
Portion 13 uses elastomeric material to make, and is not susceptible to deformation or ruptures, thus increasing the service life.
Present invention also offers a kind of brake pull-rod for transmission line of electricity, this brake pull-rod includes that rainproof insulating bar, rainproof insulating bar are
Aforesaid rainproof insulating bar.
It can be seen from the above that embodiments of the invention achieve techniques below effect: due to have upper install set, under
Set and shielding portion, upper installation set and lower set of installing are installed and are set in the periphery of the insulation body of rod, the upper end of shielding portion and upper peace hermetically
Encapsulation is tightly connected, and the lower end of shielding portion is tightly connected with lower installation set, and shielding portion covers between installation set and lower installation set
The bar segment periphery of the insulation body of rod, the bar segment of the insulation body of rod can be sealingly arranged in shielding portion dry to keep this bar segment to be in
State, it is ensured that the insulating properties of the insulation body of rod, therefore can improve operator and carry out the safety of livewire work in sleet sky.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art
For, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of being made, etc.
With replacement, improvement etc., should be included within the scope of the present invention.
Claims (7)
1. a rainproof insulating bar, including the insulation body of rod (2) and the rain cover (1) that is set on the described insulation body of rod, its feature exists
In, described rain cover (1) including:
Upper installation overlaps (11), is set in the periphery of the described insulation body of rod (2) hermetically；
Lower installation overlaps (12), is set in the periphery of the described insulation body of rod (2) hermetically, and described upper installation overlaps (11) and institute
State lower set (12) interval of installing to arrange；
Shielding portion (13), described shielding portion (13) covers at described upper set (11) of installing and overlaps (12) with described lower installation
Between the bar segment periphery of the described insulation body of rod (2), set (11) upper is installed with described in the upper end of described shielding portion (13)
Being tightly connected, the lower end of described shielding portion (13) is tightly connected so that described shielding portion (13) with described lower set (12) of installing
Cover sets described bar segment hermetically；
Described shielding portion (13) including: upper shielding portion (131), the upper end of described upper shielding portion (131) and described upper peace
Encapsulation (11) is tightly connected, and the periphery of described upper shielding portion (131) is provided with the shirt rim extended downwardly and outwardly, and institute
State the outer end face higher than the lower end of described upper shielding portion (131) of shirt rim；
Lower shielding portion (132), the upper end of described lower shielding portion (132) is sheathed on outside the lower end of described upper shielding portion (131)
Week, and the upper end end face of described lower shielding portion (132) is higher than the outer of described shirt rim, described lower shielding portion (132)
Lower end is tightly connected with described lower set (12) of installing；
Described upper shielding portion (131) includes the multiple first loudspeaker sections the most sequentially coaxially connected, wherein bottom
The stub end of the first loudspeaker section (1312) is arranged upward, and the little head end of remaining the first loudspeaker section is arranged upward, and goes up most
The little head end of the first loudspeaker section (1311) of end is tightly connected with described upper set (11) of installing, the first loudspeaker section of bottom
(1312) little head end forms the lower end of described upper shielding portion (131), first adjacent with the first loudspeaker section of bottom
The stub end of loudspeaker section forms described shirt rim.
Rainproof insulating bar the most according to claim 1, it is characterised in that described lower shielding portion (132) is the second loudspeaker section,
The little head end of described second loudspeaker section is tightly connected with described lower set (12) of installing, the stub end set of described second loudspeaker section
It is located at the periphery of the little head end of the described first loudspeaker section of bottom.
Rainproof insulating bar the most according to claim 1, it is characterised in that described shielding portion (13) includes shield ring, described
The upper end of shield ring is tightly connected with described upper set (11) of installing, and (12) are overlapped with described lower installation in the lower end of described shield ring
It is tightly connected.
Rainproof insulating bar the most according to claim 3, it is characterised in that described shielding portion (13) also includes being positioned at described screening
Covering ring bottom and the expansion segment downwardly extended being wholely set with described shield ring, described expansion segment is relative to described lower installation
Set (12) diameter is arranged with being gradually increased.
Rainproof insulating bar the most according to any one of claim 1 to 4, it is characterised in that described upper install set (11) and
Described lower set (12) of installing is made up of elastomeric material, and/or described shielding portion (13) is made up of elastomeric material.
Rainproof insulating bar the most according to any one of claim 1 to 4, it is characterised in that described upper install set (11) and/
Or described lower install set (12) by the way of shrinkage with the described insulation body of rod (2) fix be connected.
7., for a brake pull-rod for transmission line of electricity, described brake pull-rod includes rainproof insulating bar, it is characterised in that described rainproof insulation
Bar is according to the rainproof insulating bar according to any one of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310452598.3A CN104517749B (en) | 2013-09-27 | 2013-09-27 | Rainproof insulating bar and there is its brake pull-rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310452598.3A CN104517749B (en) | 2013-09-27 | 2013-09-27 | Rainproof insulating bar and there is its brake pull-rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104517749A CN104517749A (en) | 2015-04-15 |
| CN104517749B true CN104517749B (en) | 2016-08-24 |
Family
ID=52792909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310452598.3A Active CN104517749B (en) | 2013-09-27 | 2013-09-27 | Rainproof insulating bar and there is its brake pull-rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104517749B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025598A (en) * | 2016-06-12 | 2016-10-12 | 国网山东省电力公司临朐县供电公司 | Waterproof insulating head |
| CN210325563U (en) * | 2019-09-17 | 2020-04-14 | 广东电网有限责任公司 | Detachable rain-proof cover |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5911316A (en) * | 1998-08-17 | 1999-06-15 | Acbel Polytech, Inc. | Device for manually turning-on circuit-breakers |
| CN2450766Y (en) * | 2000-11-16 | 2001-09-26 | 中国石油化工股份有限公司中原油田分公司采油五厂 | Insulation operating rod for hot-line work |
| CN201282037Y (en) * | 2008-10-24 | 2009-07-29 | 李彬 | Waterproof type fast-assembling brake pull rod |
| CN203456317U (en) * | 2013-09-27 | 2014-02-26 | 国家电网公司 | Rainproof insulating rod and brake pull rod containing the same |
-
2013
- 2013-09-27 CN CN201310452598.3A patent/CN104517749B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5911316A (en) * | 1998-08-17 | 1999-06-15 | Acbel Polytech, Inc. | Device for manually turning-on circuit-breakers |
| CN2450766Y (en) * | 2000-11-16 | 2001-09-26 | 中国石油化工股份有限公司中原油田分公司采油五厂 | Insulation operating rod for hot-line work |
| CN201282037Y (en) * | 2008-10-24 | 2009-07-29 | 李彬 | Waterproof type fast-assembling brake pull rod |
| CN203456317U (en) * | 2013-09-27 | 2014-02-26 | 国家电网公司 | Rainproof insulating rod and brake pull rod containing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104517749A (en) | 2015-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107958755B (en) | Overhead power line insulator with protectiveness leakage meter | |
| CN104517749B (en) | Rainproof insulating bar and there is its brake pull-rod | |
| CN203456317U (en) | Rainproof insulating rod and brake pull rod containing the same | |
| CN102693859A (en) | Rain cover for power switch mechanism box | |
| CN205786793U (en) | A kind of all-fiber current transformator structure | |
| CN204464933U (en) | Enhancement mode cable cold-shrinkable terminal structure | |
| CN207732550U (en) | A kind of improved blower motor rain cover of structure | |
| CN204436640U (en) | Full waterproof type air filter resistance alarm | |
| CN105048295B (en) | A kind of integrating device and method of optical-fiber-type current transformer and breaker | |
| CN207994590U (en) | Cable sealing ring for high-voltage motor | |
| CN205724626U (en) | A kind of gas-filling cabinet of band photographic head | |
| CN201636821U (en) | Inflatable lamp | |
| CN207040081U (en) | A kind of water proof outer case for electric power | |
| CN207740854U (en) | A kind of water-mist-proof wall lamp | |
| CN204081306U (en) | Outdoor rain pipe syndeton | |
| CN102682894B (en) | Waterproof structure of electric appliance connecting wire | |
| CN205436023U (en) | A helical disk tubular electric heater for hanging down low temperature dust remover | |
| CN214787783U (en) | Coil sheath and natural gas engine with same | |
| CN219163128U (en) | Isolation transformer box | |
| CN207082789U (en) | A kind of wear-resisting woven tube for automotive wire bundle | |
| CN204230412U (en) | Aerial head packaging system | |
| CN105662128A (en) | Sealing ring fixing device and pressure cooker with same | |
| US1786729A (en) | Pothead for insulated conductors | |
| CN208220019U (en) | A kind of electric heating siphon rainwater head | |
| CN203056418U (en) | Cabinet body of high-tension metal closed looped-network switch cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee after: STATE GRID CORPORATION OF CHINA Country or region after: China Patentee after: STATE GRID BEIJING ELECTRIC POWER Co. Address before: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee before: State Grid Corporation of China Country or region before: China Patentee before: STATE GRID BEIJING ELECTRIC POWER Co. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20240522 Address after: 100031 No. 41 West Main Street, Qianmen, Beijing, Xicheng District Patentee after: STATE GRID BEIJING ELECTRIC POWER Co. Country or region after: China Patentee after: STATE GRID CORPORATION OF CHINA Patentee after: Daxing County Power Supply Installation Co. Address before: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee before: STATE GRID CORPORATION OF CHINA Country or region before: China Patentee before: STATE GRID BEIJING ELECTRIC POWER Co. |