CN103762517A - High-voltage ground wire installation method - Google Patents
High-voltage ground wire installation method Download PDFInfo
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- CN103762517A CN103762517A CN201410001639.1A CN201410001639A CN103762517A CN 103762517 A CN103762517 A CN 103762517A CN 201410001639 A CN201410001639 A CN 201410001639A CN 103762517 A CN103762517 A CN 103762517A
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Abstract
The invention relates to a high-voltage ground wire installation method. The method includes the following steps that (1) two hooks at the bottom end of a line connector branch pipe are hung on a connection beam; (2) the connection beam is fixedly connected with three or more vertical rods, and one end of each vertical rod is provided with a limiting transverse plate in an inserted mode; (3) each vertical rod is provided with a spring in a sleeved mode, and then the other end of each vertical rod is provided with a pressing plate in an inserted mode; (4) the outer surface of the other end of each vertical rod is provided with external threads, the external threads at the other end of each vertical rod are provided with a nut in a sleeved mode, the nuts are screwed on the external threads so as to press the springs, and the limiting transverse plates and the pressing plates are parallel with the beam; (5) the vertical rod in the middle is provided with an extending end, the extending end of the vertical rod is fixedly connected with a clamping jaw, and a hook of a high-voltage ground wire is clamped in the clamping jaw. According to the high-voltage ground wire installation method, installation is convenient to achieve, the structure is firm, safety is high, manufacturing cost is low, universality of a connection element is high, and the method is suitable for being used in other connection occasions on a high-voltage power transmission line.
Description
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Technical field
The present invention relates to the installation method of the safety devices on high voltage power transmission and transforming circuit, be specifically related to a kind of fuse switch fixed contact that makes and contact well, can meet the high-voltage grounding wire installation method of working earthing safety requirements.
Background technology
In daily production maintenance work, having is much the service work of carrying out on transformer body, as transformer place lacks, change, lightning arrester regular maintenance, the work such as rotation are all to overhaul on transformer body, in these type of work, operating personnel on high-tension line inevitably will touch transformer pile head, high pressure downlead, the positions such as lightning arrester, due to high voltage drop-out type fuse cutout insulation porcelain major gene surface and oil contaminant, acid and alkali corrosion, arc through, ageing of insulation, the reasons such as misty rain weather, the porcelain knob class of insulation that can cause insulating declines, even lose insulating capacity, even if now taken off crane arm, high voltage drop-out type fuse cutout fixed contact still may be charged.Therefore, must install high-voltage grounding wire at high voltage side of transformer, this is the very necessary technical measures for ensureing that operating personnel's personal safety is taked.Yet in high-voltage grounding wire installing link, often find to exist great potential safety hazard.
High-voltage grounding wire is generally arranged on upper/lower positions: fuse switch fixed contact high pressure downlead fixed screw place, or at transformer high-voltage downlead dress ground loop, then high-voltage grounding wire pile crown place and transformer high-voltage pile crown place on ground loop place, lightning arrester.When above position installing high-voltage grounding wire; owing to being subject to the restriction of operating condition, during practical operation, arm and body part are coordinated very inconveniently, and some positions cannot be installed even; causing high-voltage grounding wire installing can not meet safety requirements completely, there is very large potential safety hazard in ground protection.Its reason have following some: 1, at fuse switch fixed contact high pressure downlead fixed screw place installing high-voltage grounding wire, the high-voltage grounding wire installation method using is at present crotch-shaped, it is mainly applicable to install on the line use, and when transformer body carries out service work installing, the earth connection chuck of hook solid and high voltage drop-out type fuse cutout fixed contact shape are dissimilar, do not mate, be not easy to operation, can not form good between the two, effectively contact, and high pressure downlead fixed screw is shorter, the contact-making surface of earth connection chuck and downlead fixed screw is very little, very inconvenient during earth connection installing operation, earth connection easily falls, even if installing can not meet the requirement of job site short circuit current completely reluctantly.2, electric company is existing public becomes the more than 95% installation high-voltage ground loop that goes between not in transformer platform area, and high pressure downlead is all insulated conductor, and high-voltage grounding wire can not be installed at high pressure downlead place.3, owing to need to removing transformer or removing lightning arrester when changing transformer, lightning arrester work, so high-voltage grounding wire can not be installed on transformer high-voltage pile crown or lighting arrestor pile.It is to cause field operation at high-voltage grounding wire, to install the main cause that has potential safety hazard in this link that high-voltage grounding wire installing inconvenience maybe cannot be installed.
Summary of the invention
To the object of the invention is in order solving the problems of the technologies described above, to provide a kind of easy for installation, sound construction, safe, cost of manufacture is low, the high-voltage grounding wire installation method of highly versatile.
For achieving the above object, a kind of high-voltage grounding wire installation method of the present invention's design, comprises the following steps:
1), two hooks of crane arm bottom are suspended on connecting cross beam;
2), be fixedly connected with three or above montant on connecting cross beam, in one end of montant, intert spacing transverse slat;
3), on every montant, be set with a spring, then at the other end of montant, intert pressing plate;
4), the other end outer surface of montant arranges external screw thread, on the external screw thread of the other end of montant, overlaps nut, and nut is screwed and is arranged on external screw thread, by spring compression, spacing transverse slat and pressing plate all be arranged in parallel with crossbeam;
5) montant, in the middle of being positioned at is provided with elongated end, is fixedly connected with jaw on elongated end, by the dropper clamps of high-voltage grounding wire in jaw.
In technique scheme, on jaw, be provided with fixing hole, on the hook of high-voltage grounding wire, projection is set, the projection of high-voltage grounding wire is filled in fixing hole, strengthen jaw in the weight capacity of gravity direction.
In technique scheme, in described three or above montant, the montant in the middle of being positioned at, for circular, is positioned at the montant of both sides for oval.
In technique scheme, described connecting cross beam, montant, transverse slat, spring, nut, jaw are that the copper material with good conductive ability and corrosion resistance is made.
The present invention uses pressing plate to coordinate with spring, and guaranteeing has enough contact-making surfaces and keep certain mechanical pressure between earth connection chuck and high voltage drop-out type fuse cutout fixed contact hook, can fully contact between the two, thereby meet safety requirements.In use procedure, can pass through nut regulating spring pressure, assembling, dismounting is simple, easy to operate, applicable to different operating environment, be applicable to all kinds of fuse switch fixed contacts, there is general applicability, eliminated the potential safety hazard of high-voltage grounding wire installing link, meet working site safety requirements and regulate
According to material object, carry out each wire clamp cost of cost accounting low, existing electric company high-voltage grounding wire is installed, invest little, if 3000 Duo Getai districts, the small and medium-sized cities ground loop that goes between is installed transformation and is needed investment only need more than 30 ten thousand yuan, just extremely cheap comparatively speaking, and save a large amount of costs of labor and transformation time, there is huge economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is flow chart of the present invention;
Fig. 2 is the structural representation of the connector that adopts of the present invention;
In figure: 1-connecting cross beam; 2-montant; 3-transverse slat; 4-spring; 5-pressing plate; 6-jaw; 7-nut.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
High-voltage grounding wire installation method as shown in Figure 1, comprises the following steps:
1), two hooks of crane arm bottom are suspended on connecting cross beam 1;
2), be fixedly connected with three or above montant 2 on connecting cross beam 1, in one end of montant 2, intert spacing transverse slat 3;
3), on every montant 2, be set with a spring 4, then at the other end of montant 2, intert pressing plate 5;
4), the other end outer surface of montant 2 arranges external screw thread, overlaps nut 7 on the external screw thread of the other end of montant 2, and nut 7 is screwed and is arranged on external screw thread, and spring 4 is compressed, spacing transverse slat 3 and pressing plate 5 all be arranged in parallel with crossbeam 1;
5), be positioned at middle montant 2 and be provided with elongated end 2.1, on elongated end 2.1, be fixedly connected with jaw 6, by the dropper clamps of high-voltage grounding wire in jaw 6, on jaw 6, be provided with fixing hole, on the hook of high-voltage grounding wire, projection is set, the projection of high-voltage grounding wire is filled in fixing hole, strengthens jaw 6 in the weight capacity of gravity direction.
In above-mentioned three or above montant 2, montant 2 in the middle of being positioned at is for circular, be positioned at the montant 2 of both sides for oval, correspondingly, spacing transverse slat 3 and pressing plate 5 are provided with the hole of matching, this structural strengthening the active force between montant 2 and spacing transverse slat 3, pressing plate 5, strengthened the mechanical mechanism power of whole connector.
Connector as shown in Figure 2, it comprises a connecting cross beam 1, on connecting cross beam 1, be fixedly connected with three montants 2, one end of montant 2 is interspersed with spacing transverse slat 3, montant 2 ends are provided with for by the spacing boss of transverse slat 3, on every montant 2, be all set with spring 4, the other end of montant 2 is interspersed with pressing plate 5, the other end outer surface of montant 2 is provided with external screw thread, on the external screw thread of the other end of montant 2, cover has nut 7, spacing transverse slat 3 and pressing plate 5 are all arranged in parallel with crossbeam 1, in three montants, montant 2 in the middle of being positioned at is provided with elongated end 2.1, on elongated end 2.1, be fixedly connected with jaw 6, jaw 6 is sleeved on elongated end 2.1 and by welding and fixedly secures.
Connecting cross beam 1 in the present embodiment, montant 2, transverse slat 3, spring 4, nut 7, jaw 6 select the copper material with good conductive ability and corrosion resistance to make, and meet the maximum short circuit current thermal capacity in operation location and the requirement of maximum short circuit current.
The crotch part of high-voltage earthing thread end is hung on jaw 6, by fixing interspersed being fixed on connecting cross beam 1 of high voltage drop-out type fuse cutout fixed contact, can carry out high-voltage grounding wire installing, operation easily, contact well with fuse switch fixed contact, can meet the safety requirements of working earthing, eliminate and on fuse switch fixed contact, installed the potential safety hazard existing in this link of high-voltage grounding wire.After being used to complete, dismantle also very convenient.
The content not being described in detail in this specification belongs to the known prior art of professional and technical personnel in the field.
Claims (4)
1. a high-voltage grounding wire installation method, is characterized in that: comprise the following steps:
1), two hooks of crane arm bottom are suspended on connecting cross beam (1);
2), be fixedly connected with three or above montant (2) on connecting cross beam (1), in one end of montant (2), intert spacing transverse slat (3);
3), at the upper suit of every montant (2) spring (4), then at the other end of montant (2), intert pressing plate (5);
4), the other end outer surface of montant (2) arranges external screw thread, on the external screw thread of the other end of montant (2), overlap nut (7), nut (7) is screwed and is arranged on external screw thread, spring (4) is compressed, spacing transverse slat (3) and pressing plate (5) all be arranged in parallel with crossbeam (1);
5) montant (2), in the middle of being positioned at is provided with elongated end (2.1), is fixedly connected with jaw (6) on elongated end (2.1), by the dropper clamps of high-voltage grounding wire in jaw (6).
2. high-voltage grounding wire installation method according to claim 1, it is characterized in that: on jaw (6), be provided with fixing hole, on the hook of high-voltage grounding wire, projection is set, the projection of high-voltage grounding wire is filled in fixing hole, strengthen jaw (6) in the weight capacity of gravity direction.
3. high-voltage grounding wire installation method according to claim 1 and 2, is characterized in that: in described three or above montant (2), the montant (2) in the middle of being positioned at, for circular, is positioned at the montant (2) of both sides for oval.
4. high-voltage grounding wire installation method according to claim 1 and 2, is characterized in that: described connecting cross beam (1), montant (2), transverse slat (3), spring (4), nut (7), jaw (6) are the copper material making with good conductive ability and corrosion resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410001639.1A CN103762517B (en) | 2014-01-03 | 2014-01-03 | High-voltage ground wire installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410001639.1A CN103762517B (en) | 2014-01-03 | 2014-01-03 | High-voltage ground wire installation method |
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| Publication Number | Publication Date |
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| CN103762517A true CN103762517A (en) | 2014-04-30 |
| CN103762517B CN103762517B (en) | 2017-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410001639.1A Expired - Fee Related CN103762517B (en) | 2014-01-03 | 2014-01-03 | High-voltage ground wire installation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958373A (en) * | 2016-06-01 | 2016-09-21 | 王保锋 | Quick connection structure for broken high-voltage cable |
| CN107910814A (en) * | 2017-07-14 | 2018-04-13 | 国网浙江省电力公司湖州供电公司 | It is grounded Pilot Operational Equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201490351U (en) * | 2009-09-03 | 2010-05-26 | 华北电网有限公司秦皇岛电力公司 | Grounding wire connecting device |
| JP4749143B2 (en) * | 2005-12-16 | 2011-08-17 | 中国電力株式会社 | Grounding equipment and grounding short-circuit device |
| CN203166322U (en) * | 2013-03-27 | 2013-08-28 | 浙江顺豪电器有限公司 | Grounding clamp of switch cabinet |
| CN203300819U (en) * | 2013-05-23 | 2013-11-20 | 山西太钢不锈钢股份有限公司 | Insulating busbar bridge protecting grounding device |
| CN203367502U (en) * | 2013-07-02 | 2013-12-25 | 国家电网公司 | Wire grounding device |
-
2014
- 2014-01-03 CN CN201410001639.1A patent/CN103762517B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4749143B2 (en) * | 2005-12-16 | 2011-08-17 | 中国電力株式会社 | Grounding equipment and grounding short-circuit device |
| CN201490351U (en) * | 2009-09-03 | 2010-05-26 | 华北电网有限公司秦皇岛电力公司 | Grounding wire connecting device |
| CN203166322U (en) * | 2013-03-27 | 2013-08-28 | 浙江顺豪电器有限公司 | Grounding clamp of switch cabinet |
| CN203300819U (en) * | 2013-05-23 | 2013-11-20 | 山西太钢不锈钢股份有限公司 | Insulating busbar bridge protecting grounding device |
| CN203367502U (en) * | 2013-07-02 | 2013-12-25 | 国家电网公司 | Wire grounding device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105958373A (en) * | 2016-06-01 | 2016-09-21 | 王保锋 | Quick connection structure for broken high-voltage cable |
| CN105958373B (en) * | 2016-06-01 | 2017-10-03 | 王月娟 | A kind of high-tension cable is broken fast joint structure |
| CN107910814A (en) * | 2017-07-14 | 2018-04-13 | 国网浙江省电力公司湖州供电公司 | It is grounded Pilot Operational Equipment |
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| Publication number | Publication date |
|---|---|
| CN103762517B (en) | 2017-12-08 |
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Granted publication date: 20171208 Termination date: 20200103 |