CN103594993A - High-voltage and low-voltage lead cross arm - Google Patents
High-voltage and low-voltage lead cross arm Download PDFInfo
- Publication number
- CN103594993A CN103594993A CN201310555999.1A CN201310555999A CN103594993A CN 103594993 A CN103594993 A CN 103594993A CN 201310555999 A CN201310555999 A CN 201310555999A CN 103594993 A CN103594993 A CN 103594993A
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- China
- Prior art keywords
- cross
- arm
- bar
- flank
- low voltage
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- Pending
Links
- 239000012212 insulator Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 229910052573 porcelain Inorganic materials 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 abstract 1
- 238000004880 explosion Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The invention relates to a high-voltage and low-voltage lead cross arm which is composed of a transverse rod, side wings, a middle phase rod, and a clamp used for being connected with an electric pole.The transverse rod, the side wings and the middle phase rod are used for fixing an insulator. The side wings are connected with the two sides of the transverse rod. The upper surface of the transverse rod and upper surfaces of the side wings are all provided with fixing holes. A cushion block is arranged in the middle of a side face of the transverse rod. The annular clamp covers the cushion block. The horizontal middle phase rod is arranged in the middle of the other side face of the transverse rod. A vertical end plate is arranged on the end portion of the middle phase rod. The middle of the end plate is also provided with a fixing hole. By the adoption of the technical scheme, the high-voltage and low-voltage lead cross arm is simple in structure, small in occupied space, convenient and quick to install, capable of respectively bearing a high-voltage lead and a low-voltage lead stably, and capable of well protecting the middle phase fixed insulator, and thoroughly solves the problem of explosion of a porcelain skirt water accumulating needle bottle of the middle phase fixed insulator especially after a composite insulator and an insulating lead are used.
Description
Technical field
The present invention relates to the high-low voltage leads cross-arm using when a kind of applicable high-voltage connection passes through low-voltage circuit.
Background technology
In high-low pressure is joint used, design processing high-low voltage leads cross-arm, when high-voltage connection passes through low-voltage circuit, has the distance between high pressure (10kV) downlead and low pressure (0.4kV) line, should not be less than the regulation of 0.2m.
For meeting this regulation, three layers and above cross-arm when passing through low-voltage line, need to be installed high-voldage, bar is parallel sets up for two for every layer of cross-arm, each layer of cross-arm born respectively high and low line ball, make high and low pressure distance between centers of tracks meet construction regulation, but this kind of mode used material many, and the construction period is longer, maintenance inconvenience.
Simultaneously because the distribution transformer installation site at cross-arm downside is higher, and it has the larger stand that takes up space, and installation personnel need to be installed cross-arm in the middle of stand, to operation, bring difficulty.After distribution transformer breaks down, when insulator is changed on to cross-arm, change space little, change difficulty.
Also having insulator or porcelain vase are installed on common cross-arm is mostly to be to adopt vertical installation, therefore when sleety weather, at the easy ponding in middle phase insulator place, thereby cause middle phase insulator porcelain patticoat very easily to burst, thereby cause corresponding accident.
Summary of the invention
The object of this invention is to provide a kind of taken up space littlely, it is convenient to install, and can bear high and low pressure lead-in wire simultaneously, fixes the high-low voltage leads cross-arm that pin bottle porcelain patticoat ponding bursts in preventing.
The object of the present invention is achieved like this: high-low voltage leads cross-arm be by the cross bar in order to fixed insulation, flank, in phase bar, form with the anchor ear in order to be connected with electric pole, in cross bar both sides, be all connected with flank, at cross bar and flank upper surface, all offer fixing hole, at cross bar one middle part, side, be provided with cushion block, cushion block is covered with annular anchor ear; The middle phase bar that is provided with level at middle part, cross bar another side, is fixed with vertical end plate at middle phase boom end, and end plate middle part also offers fixing hole.
Owing to carrying out technique scheme; the present invention is simple in structure; institute takes up space few; it is convenient to install; it can be firmly and bears respectively high and low pressure lead-in wire; and in can well protecting, fix insulator, after especially compound insulator and insulated conductor are used, in fix the problem that insulator porcelain patticoat ponding pin bottle bursts and be solved.
Accompanying drawing explanation: technical scheme of the present invention is provided by following drawings and Examples.
Fig. 1 is high-low voltage leads cross-arm structural representation.
Legend: 1. phase bar in; 2. fixing hole; 3. cross bar; 4. flank; 5. cushion block; 6. anchor ear.
Embodiment:
The present invention is not subject to the restriction of following embodiment, can determine concrete execution mode according to technical scheme of the present invention and actual conditions.
Embodiment: as shown in Figure 1, high-low voltage leads cross-arm its be by the cross bar 3 in order to fixed insulation, flank 4, in phase bar 1, form with the anchor ear 6 in order to be connected with electric pole.The rod-like structure that described cross bar 3, flank 4, middle phase bar 1 are all comprised of angle bar, is all connected with flank 4 in cross bar 3 both sides, and between cross bar 3 and flank 4, angle is not more than 135 degree, preferably 135 degree.At cross bar 3 and flank 4 upper surfaces, all offer fixing hole 2, the interior low tension insulator that is vertically equiped with of fixing hole 2 on cross bar 3, the fixing hole 2 on flank 4 is vertically equiped with high-tension insulator.At cross bar 3 one middle parts, side, be provided with cushion block 5, cushion block 5 is covered with annular anchor ear 6; The middle phase bar 1 that is provided with level at cross bar 3 middle parts, another side, is fixed with vertical end plate in middle phase bar 1 end, and end plate middle part also offers fixing hole 2, and the interior level of this fixing hole 2 is equiped with middle phase insulator.
Described cushion block 5 integral body are M shape, and its openend is connected with cross bar 3 sides, and openend opposite side is the arc sealing surface caving inward, and described arc sealing surface is towards anchor ear 6, and form fastening structure with anchor ear 6 is common, thereby fix with electric pole.
Fixing hole 2 on described cross bar 3, flank 4, middle phase bar 1 is greater than 20cm in the projection straight line spacing of horizontal plane.
During on-the-spot use, the application's integral body is transported to and treats bearing, by anchor ear 6, be connected with electric pole.After whole fixing, respectively each high and low pressure insulator is installed respectively to fixing hole 2 places that are fixed on cross bar 3, flank 4, middle phase bar 1.Finally high and low pressure lead-in wire is installed in respectively on corresponding insulator, completes high-low voltage leads and joint use.Middle phase insulator water plain cloth on middle phase bar 1 is established, and can prevent that sleet from accumulating in its surface, prevents that middle phase insulator porcelain patticoat from bursting.
Above technical characterictic has formed most preferred embodiment of the present invention, and it has stronger adaptability and best implementation result, can increase and decrease according to actual needs inessential technical characterictic, meets the needs of different situations.
Claims (9)
1. a high-low voltage leads cross-arm, it is characterized in that: its be by the cross bar in order to fixed insulation, flank, in phase bar, form with the anchor ear in order to be connected with electric pole, in cross bar both sides, be all connected with flank, at cross bar and flank upper surface, all offer fixing hole, at cross bar one middle part, side, be provided with cushion block, cushion block is covered with annular anchor ear; The middle phase bar that is provided with level at middle part, cross bar another side, is fixed with vertical end plate at middle phase boom end, and end plate middle part also offers fixing hole.
2. high-low voltage leads cross-arm as claimed in claim 1, is characterized in that: the rod-like structure that described cross bar, flank, middle phase bar are all comprised of angle bar.
3. high-low voltage leads cross-arm as claimed in claim 1, is characterized in that: between cross bar and flank, angle is not more than 135 degree.
4. high-low voltage leads cross-arm as claimed in claim 3, is characterized in that: preferred 135 degree of angle between cross bar and flank.
5. high-low voltage leads cross-arm as claimed in claim 1, is characterized in that: in the fixing hole on cross bar, be vertically equiped with low tension insulator.
6. high-low voltage leads cross-arm as claimed in claim 1, is characterized in that: the fixing hole on flank is vertically equiped with high-tension insulator.
7. high-low voltage leads cross-arm as claimed in claim 1, is characterized in that: in the fixing hole of middle phase boom end, level is equiped with middle phase insulator.
8. high-low voltage leads cross-arm as claimed in claim 1, it is characterized in that: described cushion block is whole is M shape, and its openend is connected with cross bar side, and openend opposite side is the arc sealing surface caving inward, described arc sealing surface is towards anchor ear, and jointly forms fastening structure with anchor ear.
9. high-low voltage leads cross-arm as claimed in claim 1, is characterized in that: the fixing hole on described cross bar, flank, middle phase bar is greater than 20cm in the projection straight line spacing of horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310555999.1A CN103594993A (en) | 2013-11-11 | 2013-11-11 | High-voltage and low-voltage lead cross arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310555999.1A CN103594993A (en) | 2013-11-11 | 2013-11-11 | High-voltage and low-voltage lead cross arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103594993A true CN103594993A (en) | 2014-02-19 |
Family
ID=50085028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310555999.1A Pending CN103594993A (en) | 2013-11-11 | 2013-11-11 | High-voltage and low-voltage lead cross arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103594993A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104044A (en) * | 2014-06-23 | 2014-10-15 | 国家电网公司 | Cross arm filling piece with nesting prevention function |
| CN105391015A (en) * | 2015-11-27 | 2016-03-09 | 国网北京市电力公司 | Insulator fixing device |
| CN105552811A (en) * | 2015-12-08 | 2016-05-04 | 国网浙江省电力公司丽水供电公司 | Three-wire hanging support |
| CN105633888A (en) * | 2016-02-18 | 2016-06-01 | 成都佳美嘉科技有限公司 | Cross arm for transmission tower |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100892595B1 (en) * | 2008-09-22 | 2009-04-08 | 주식회사 천일이앤씨 | Insulator support for electric pole |
| CN201771247U (en) * | 2010-06-30 | 2011-03-23 | 潍坊长安铁塔股份有限公司 | Cross arm device shared by lead and ground wire of power tower |
| CN201927972U (en) * | 2010-11-22 | 2011-08-10 | 河南省电力公司信阳供电公司 | Multiloop branch tower pole |
| CN202488071U (en) * | 2012-04-04 | 2012-10-10 | 湖北省电力公司咸宁供电公司 | Tension rod cross arm |
| CN103258464A (en) * | 2013-04-19 | 2013-08-21 | 国家电网公司 | Double-circuit tension-resistant electric pole analog device for practical training of live working |
| CN203617657U (en) * | 2013-11-11 | 2014-05-28 | 国家电网公司 | High-voltage and low-voltage lead cross arm |
-
2013
- 2013-11-11 CN CN201310555999.1A patent/CN103594993A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100892595B1 (en) * | 2008-09-22 | 2009-04-08 | 주식회사 천일이앤씨 | Insulator support for electric pole |
| CN201771247U (en) * | 2010-06-30 | 2011-03-23 | 潍坊长安铁塔股份有限公司 | Cross arm device shared by lead and ground wire of power tower |
| CN201927972U (en) * | 2010-11-22 | 2011-08-10 | 河南省电力公司信阳供电公司 | Multiloop branch tower pole |
| CN202488071U (en) * | 2012-04-04 | 2012-10-10 | 湖北省电力公司咸宁供电公司 | Tension rod cross arm |
| CN103258464A (en) * | 2013-04-19 | 2013-08-21 | 国家电网公司 | Double-circuit tension-resistant electric pole analog device for practical training of live working |
| CN203617657U (en) * | 2013-11-11 | 2014-05-28 | 国家电网公司 | High-voltage and low-voltage lead cross arm |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104104044A (en) * | 2014-06-23 | 2014-10-15 | 国家电网公司 | Cross arm filling piece with nesting prevention function |
| CN105391015A (en) * | 2015-11-27 | 2016-03-09 | 国网北京市电力公司 | Insulator fixing device |
| CN105552811A (en) * | 2015-12-08 | 2016-05-04 | 国网浙江省电力公司丽水供电公司 | Three-wire hanging support |
| CN105633888A (en) * | 2016-02-18 | 2016-06-01 | 成都佳美嘉科技有限公司 | Cross arm for transmission tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant after: State Grid Corporation of China Applicant after: CHANGJI POWER SUPPLY COMPANY OF STATE GRID XINJIANG ELECTRIC POWER COMPANY Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Applicant before: State Grid Corporation of China Applicant before: CHANGJI POWER BUREAU, XINJIANG ELECTRIC POWER COMPANY |
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| COR | Change of bibliographic data | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140219 |
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| WD01 | Invention patent application deemed withdrawn after publication |