CN105098694A - Overhead lightning line erection method based on typical design of power distribution network - Google Patents
Overhead lightning line erection method based on typical design of power distribution network Download PDFInfo
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- CN105098694A CN105098694A CN201510523792.5A CN201510523792A CN105098694A CN 105098694 A CN105098694 A CN 105098694A CN 201510523792 A CN201510523792 A CN 201510523792A CN 105098694 A CN105098694 A CN 105098694A
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Abstract
The invention relates to an overhead lightning line erection method based on typical design of a power distribution network. Each pole is fixedly equipped with horizontal cross arms. Multiple lightning protection components are mounted on each cross arm. Two to four loops of overhead insulated conductors are mounted on the group of poles through the support of the lightning protection components. The two to four loops of overhead insulated wires are grounded through zinc oxide arresters of the lightning protection components. A pole top lightning protection component is arranged on the top of each pole, and an overhead lightning line is erected on the pole top lightning protection components. Each pole top lightning protection component is composed of a lightning protection pillar insulator, a gapped zinc oxide arrester and a lightning conductor tension string. The overhead lightning line is connected with the gapped zinc oxide arresters through the lightning conductor tension strings and the lightning protection pillar insulators, and each gapped zinc oxide arrester is grounded through a grounding line inside the corresponding pole. The overhead lightning line is erected on the pole top lightning protection components in order to solve the problem that the insulated conductors may be broken by lightning strike.
Description
Technical field
The invention belongs to electrical facility technical field, particularly a kind of overhead ground wire erection method based on power distribution network modular design.
Background technology
Along with applying of distribution line insulated conductor, open space insulated conductor shocking preventing technology annoyings operations staff always, and various shocking preventing technology is generally applied, and the raising gradually of insulation rate, the application of shocking preventing technology also receives much concern.At present, insulated conductor subjects to lightning-caused breaking have been become insulated conductor and has used the problem generally run into, the modular design of Guo Wang company recommends concentrated lightning protection measures, mainly comprise lightning protection pillar insulator, the zinc oxide arrester of band gap, lightning protection wire tension-resistant string, suspended insulated guide wire is grounded by zinc oxide arrester.But the lightning-arrest less effective of existing suspended insulated guide wire, often there will be lightning-caused breaking situation, affects the safety in operation of electric power system.Therefore, based on the 2013 editions modular designs of Guo Wang company, how use in pilot on the basis of zinc oxide arrester of lightning protection pillar insulator, band gap, the straight cement pole bar head arrangement form choosing Z2-3 double back (even three times, four times) suspended insulated guide wire realizes the erection of transformation overhead ground wire becomes current urgent task.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of overhead ground wire erection method based on power distribution network modular design is provided, rearrange various typical bar head, suffer lightning-caused breaking problem in order to solve insulated conductor.
The present invention solves its technical problem and is achieved through the following technical solutions:
A kind of overhead ground wire erection method based on power distribution network modular design, comprise one group of spaced apart electric pole, all between the upper and lower every the cross-arm being fixed with level on described each electric pole, on cross-arm, interval is provided with multigroup lightning protection assembly, described one group of line bar supports installation two to four times suspended insulated guide wires by above-mentioned lightning protection component, this lightning protection component comprises lightning protection pillar insulator, the zinc oxide arrester of band gap and lightning protection wire tension-resistant string, described two to four times suspended insulated guide wires are grounded by zinc oxide arrester, it is characterized in that: be provided with masthead lightning protection component at the top of described one group of electric pole, this masthead lightning protection component sets up overhead ground wire, described masthead lightning protection component is by lightning protection pillar insulator, the zinc oxide arrester of band gap and lightning protection wire tension-resistant string are formed, described overhead ground wire is by lightning protection guiding strain insulator-string and the zinc oxide arrester in lightning protection pillar insulator connecting band gap, the zinc oxide arrester of band gap is by the ground connection in electric pole.
And the shielding angle of described overhead ground wire is satisfied is less than 25 degree of requirements.
And described meeting with the shielding angle of two to four times suspended insulated guide wires is less than 25 degree of requirements.
Advantage of the present invention and beneficial effect are:
1, this is based on the overhead ground wire erection method of power distribution network modular design; by com-parison and analysis power distribution network modular design suspended insulated guide wire erection mode; calculating overhead ground wire lightning protection angle meets on the basis of service requirement; by arranging various typical bar head; masthead lightning protection component is provided with at the top of one group of electric pole; this masthead lightning protection component sets up overhead ground wire, suffers lightning-caused breaking problem in order to solve insulated conductor.Can the newly-built or transformation simultaneous completion overhead ground wire erection at wire, by the every base ground connection of non-prestressed cement pole body.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
1-electric pole, 2-cross-arm, 3-first time suspended insulated guide wire, 4-overhead ground wire, 5-second time suspended insulated guide wire, 6-lightning protection component, 7-masthead lightning protection component.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.
A kind of overhead ground wire erection method based on power distribution network modular design, comprise one group of spaced apart electric pole 1, all between the upper and lower every the cross-arm 2 being fixed with level on described each electric pole, on cross-arm, interval is provided with multigroup lightning protection assembly 6, and one group of line bar supports installation two to four times suspended insulated guide wires by above-mentioned lightning protection component.Be two times suspended insulated guide wires in the present embodiment, comprise first time suspended insulated guide wire 3, and second time suspended insulated guide wire 5.This lightning protection component comprises lightning protection pillar insulator, the zinc oxide arrester of band gap and lightning protection wire tension-resistant string.Two to four times suspended insulated guide wire is grounded by zinc oxide arrester.
Its innovation is: be provided with masthead lightning protection component 7 at the top of one group of electric pole, this masthead lightning protection component sets up overhead ground wire 4, masthead lightning protection component is made up of the zinc oxide arrester of lightning protection pillar insulator, band gap and lightning protection wire tension-resistant string, overhead ground wire is by lightning protection guiding strain insulator-string and the zinc oxide arrester in lightning protection pillar insulator connecting band gap, and the zinc oxide arrester of band gap is by the ground connection in electric pole.
The shielding angle of overhead ground wire is satisfied is less than 25 degree of requirements.Meet with the shielding angle of two to four times suspended insulated guide wires and be less than 25 degree of requirements.
Overhead ground wire erection method based on power distribution network modular design of the present invention, by arranging various typical bar head, be provided with masthead lightning protection component at the top of one group of electric pole, this masthead lightning protection component sets up overhead ground wire, suffer lightning-caused breaking problem in order to solve insulated conductor.
Although disclosed embodiments of the invention and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that, in the spirit and scope not departing from the present invention and claims, various replacement, change and amendment are all possible, and therefore scope of the present invention is not limited to the content disclosed in embodiment and accompanying drawing.
Claims (3)
1. the overhead ground wire erection method based on power distribution network modular design, comprise one group of spaced apart electric pole, all between the upper and lower every the cross-arm being fixed with level on described each electric pole, on cross-arm, interval is provided with multigroup lightning protection assembly, described one group of line bar supports installation two to four times suspended insulated guide wires by above-mentioned lightning protection component, this lightning protection component comprises lightning protection pillar insulator, the zinc oxide arrester of band gap and lightning protection wire tension-resistant string, described two to four times suspended insulated guide wires are grounded by zinc oxide arrester, it is characterized in that: be provided with masthead lightning protection component at the top of described one group of electric pole, this masthead lightning protection component sets up overhead ground wire, described masthead lightning protection component is by lightning protection pillar insulator, the zinc oxide arrester of band gap and lightning protection wire tension-resistant string are formed, described overhead ground wire is by lightning protection guiding strain insulator-string and the zinc oxide arrester in lightning protection pillar insulator connecting band gap, the zinc oxide arrester of band gap is by the ground connection in electric pole.
2. the overhead ground wire erection method based on power distribution network modular design according to claim 1, is characterized in that: the shielding angle of described overhead ground wire is satisfied is less than 25 degree of requirements.
3. the overhead ground wire erection method based on power distribution network modular design according to claim 1, is characterized in that: described meeting with the shielding angle of two to four times suspended insulated guide wires is less than 25 degree of requirements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510523792.5A CN105098694A (en) | 2015-08-24 | 2015-08-24 | Overhead lightning line erection method based on typical design of power distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510523792.5A CN105098694A (en) | 2015-08-24 | 2015-08-24 | Overhead lightning line erection method based on typical design of power distribution network |
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| CN105098694A true CN105098694A (en) | 2015-11-25 |
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| CN201510523792.5A Pending CN105098694A (en) | 2015-08-24 | 2015-08-24 | Overhead lightning line erection method based on typical design of power distribution network |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107337099A (en) * | 2017-08-22 | 2017-11-10 | 武汉大学 | A kind of lightning protection day net laid for power station cable crane |
| CN108092220A (en) * | 2017-11-14 | 2018-05-29 | 国核电力规划设计研究院有限公司 | Transmission line of electricity |
| CN112653063A (en) * | 2020-12-17 | 2021-04-13 | 长沙理工大学 | 10kV overhead line lightning protection method used by matching of coupling ground wire and lightning arrester |
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| JP2004158225A (en) * | 2002-11-05 | 2004-06-03 | Ngk Insulators Ltd | Lightning insulator device |
| CN202068162U (en) * | 2010-12-30 | 2011-12-07 | 刘继 | High-voltage distribution line lightning prevention system |
| CN103296629A (en) * | 2013-06-21 | 2013-09-11 | 国家电网公司 | Ground wire DC (direct current) deicing method based on discharge gap insulator |
| CN203278165U (en) * | 2013-06-25 | 2013-11-06 | 广西电网公司电力科学研究院 | 10kV overhead distribution line arrester arrangement structure |
| CN203423465U (en) * | 2013-08-20 | 2014-02-05 | 广西电网公司电力科学研究院 | Power distribution overhead power transmission line lightning-induced overvoltage lightning protection device |
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2015
- 2015-08-24 CN CN201510523792.5A patent/CN105098694A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004158225A (en) * | 2002-11-05 | 2004-06-03 | Ngk Insulators Ltd | Lightning insulator device |
| CN202068162U (en) * | 2010-12-30 | 2011-12-07 | 刘继 | High-voltage distribution line lightning prevention system |
| CN103296629A (en) * | 2013-06-21 | 2013-09-11 | 国家电网公司 | Ground wire DC (direct current) deicing method based on discharge gap insulator |
| CN203278165U (en) * | 2013-06-25 | 2013-11-06 | 广西电网公司电力科学研究院 | 10kV overhead distribution line arrester arrangement structure |
| CN203423465U (en) * | 2013-08-20 | 2014-02-05 | 广西电网公司电力科学研究院 | Power distribution overhead power transmission line lightning-induced overvoltage lightning protection device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107337099A (en) * | 2017-08-22 | 2017-11-10 | 武汉大学 | A kind of lightning protection day net laid for power station cable crane |
| CN107337099B (en) * | 2017-08-22 | 2019-01-29 | 武汉大学 | A kind of lightning protection day net laid for power station cable crane |
| CN108092220A (en) * | 2017-11-14 | 2018-05-29 | 国核电力规划设计研究院有限公司 | Transmission line of electricity |
| CN112653063A (en) * | 2020-12-17 | 2021-04-13 | 长沙理工大学 | 10kV overhead line lightning protection method used by matching of coupling ground wire and lightning arrester |
| CN112653063B (en) * | 2020-12-17 | 2022-07-29 | 长沙理工大学 | Lightning protection method for 10kV overhead line used by matching coupling ground wire and lightning arrester |
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Application publication date: 20151125 |
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| RJ01 | Rejection of invention patent application after publication |