CN201038348Y - Transmission line bracket maintenance-free earthing network - Google Patents
Transmission line bracket maintenance-free earthing network Download PDFInfo
- Publication number
- CN201038348Y CN201038348Y CNU2007200348316U CN200720034831U CN201038348Y CN 201038348 Y CN201038348 Y CN 201038348Y CN U2007200348316 U CNU2007200348316 U CN U2007200348316U CN 200720034831 U CN200720034831 U CN 200720034831U CN 201038348 Y CN201038348 Y CN 201038348Y
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- stainless steel
- transmission line
- bracing frame
- ground
- conductance
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Abstract
The utility model relates to a maintenance avoidance ground grid for transfer line holding frame which is designed aiming at the ground grid of the prior transfer line holding frame is made by galvanized steel with the problems of easy corrosion, bad grounding reliability and regular mining and maintenance. The utility model comprises a ground frame formed by the connection of conductance ground rod. The ground frame is connected with a conductance guiding line and a conductance earth electrode. The conductance ground rod, the conductance guiding line and the conductance earth electrode have the following compositions: the outer surface is a stainless steel layer which is tightly covered with a steel bar. The utility model is unlikely to be rusted in the using process with high ground reliability, avoidance of mining and maintenance and save great manpower, material resource and financial resource. The stainless steel material has good conductivity to conduct thunderstroke current effectively.
Description
(1) technical field: the utility model belongs to technology power ground, relates in particular to the grounding technology of power transmission line bracing frame.
(2) background technology: high voltage transmission line generally adopts bracing frame to connect up, and the most common form of support frame as described above is the turriform bracing frame that is made of bar shaped or square steel, the support bar that also useful described steel are made etc.In order to prevent thunderbolt, above-mentioned steel bracing frame all be embedded in underground ground network and be connected.
In the prior art, above-mentioned ground network is constructed as follows: it comprises that is welded to connect a grounding rack that constitutes by the conductive earthing rod, grounding rack connects conduction respectively and draws and reach the standard grade and an end of the conductive earthing utmost point, conduction is drawn the other end of reaching the standard grade and is connected with above-mentioned bracing frame conduction, and the other end of earth electrode inserts underground.Above-mentioned conductive earthing rod, conduction are drawn and are reached the standard grade and the conductive earthing utmost point all adopts zinc-plated round steel steel, zinc-coated flat steel sheet steel or zinc-plated square steel to make, it is underground that its shortcoming is that galvanized steel is embedded in, be easy to corrosion, of long duration, even the disconnected bar phenomenon of generation ground network, influence the reliability of power transmission line bracing frame ground connection, can bury potential safety hazard for thunderbolt.Therefore, regularly the ground network pick of burying ground is opened, ground network be checked, safeguarded or changes, effort, time-consuming, expensive.
(3) summary of the invention: the ground network at existing power transmission line bracing frame adopts galvanized steel to make, be easy to the problem of corrosion and ground connection poor reliability, the applicant studies improvement, a kind of non-maintaining ground network of power transmission line bracing frame is provided, it can corrosion, the functional reliability height can digging-free inspection and non-maintaining.
Technical scheme of the present invention is as follows:
The non-maintaining ground network of power transmission line bracing frame, it comprises the grounding rack that is connected and composed by the conductive earthing rod, grounding rack connects conduction and draws and reaches the standard grade and the conductive earthing utmost point, being constructed as follows of the conductive earthing rod of described grounding rack: its extexine is a stainless steel layer, tight coated rod iron in the appearance stainless steel layer; The surface of described rod iron has V font groove, and the appearance stainless steel layer is coated and insert in the described V font groove; Described conductive earthing rod connects with the stainless joint pipe, constitute described grounding rack, stainless joint pipe wherein comprises stainless steel straight connector pipe and stainless steel T junction pipe, stainless steel T junction pipe is reached the standard grade or earth electrode is connected with drawing in addition, described drawing reaches the standard grade and being constructed as follows of earth electrode: its appearance is a stainless steel layer, tight coated rod iron in the appearance stainless steel layer.
In the utility model the grounding rack of ground network and drawing of being connected with its conduction reach the standard grade and earth electrode all by the appearance stainless steel layer with and interior coated rod iron constitute, between connection adopt stainless steel straight connector pipe or service tee pipe, constitute the appearance stainless steel layer and the connected stainless joint pipe of the conductive earthing rod of grounding rack, all has good corrosion stability, so make the reliability height of ground network ground connection, can avoid the ground network of excavation inspection regularly, realize non-maintaining, so save a large amount of manpower and materials and financial resources, reduce the maintenance cost of power transmission line bracing frame significantly.Stainless steel also has good conductivity, is enough to effectively conduct thunder-strike current.
(4) description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the cutaway view of A-A direction among Fig. 1;
Fig. 3 is the cutaway view of B-B direction among Fig. 1.
(5) embodiment:
See Fig. 1, the utility model comprises by conductive earthing rod 5, straight connector pipe 2 and service tee pipe 3 and connecting, constitute the grounding rack of parallelogram shape, grounding rack connects conduction by T junction pipe 3 and draws and reach the standard grade 1 and the conductive earthing utmost point 4, conduction is drawn 1 the other end of reaching the standard grade and is connected with the bracing frame conduction of power transmission line, and the other end insertion of earth electrode 4 is underground.Above-mentioned conductive earthing rod 5, conduction draw reach the standard grade 1 and the structure of the conductive earthing utmost point 4 identical, all as shown in Figure 2, its extexine 7 is respectively stainless steel layer, stainless steel layer 7 tight coated rod irons 6, desirable 0.60 millimeter of the thickness of stainless steel layer 7 wherein, wherein rod iron 6 adopts carbon steels.The Surface Machining that Fig. 2 also illustrates rod iron 6 goes out the groove 8 of V font, and appearance stainless steel layer 7 is coated and insert in the V font groove 8, so can prevent to produce between stainless steel layer 7 and the rod iron 6 and slide.When practice of construction, on rod iron 6, pull out V font groove 8 earlier with mould, then rod iron 6 is inserted in stainless steel tube, utilize mould and adopt conventional stretching extrusion equipment closely coated, make stainless steel layer 7 fill up the groove 8 of V font.
See Fig. 1, straight connector pipe 2 and T junction pipe 3 are all stainless steel, the conductive earthing rod 5 of the coated stainless steel layer in top layer is not having the branch road joint to connect with stainless steel straight connector pipe 2, with corresponding extrusion die and commercially available hydraulic tongs cold extrusion straight connector pipe 2 and be inserted in wherein conductive earthing rod 5, both are closely connected, to such an extent as to can make the coated stainless steel layer in the stainless steel tube wall of straight connector and conductive earthing rod 5 top layers can be squeezed into one, shown in Fig. 3 hatching zone, its appearance becomes hexahedral shape, and is consistent with the cavity shape of extrusion die.See Fig. 1, conductive earthing rod 5 is having branch road place (go between 1 on for example connecting, earth electrode 4 or corner) to connect with stainless steel T junction pipe 3, it is identical with the connection of above-mentioned straight connector that it connects construction method, and the cross section structure of junction and shape are also identical with Fig. 2.General desirable 2.5 millimeter of the wall thickness of above-mentioned straight connector pipe 2 and T junction pipe 3.
See Fig. 1, when thunderbolt takes place, from the power transmission line bracing frame is imported moment thunder-strike current reach the standard grade 1 through drawing, T junction pipe 3 flows into grounding racks, again by grounding rack under earth electrode 4 inflow places.
Claims (6)
1. the non-maintaining ground network of power transmission line bracing frame, it comprises the grounding rack that is connected and composed by the conductive earthing rod, grounding rack connects to conduct electricity to draw reaches the standard grade and the conductive earthing utmost point, being constructed as follows of conductive earthing rod that it is characterized in that described grounding rack: its extexine is a stainless steel layer, tight coated rod iron in the appearance stainless steel layer.
2. by the non-maintaining ground network of the described power transmission line bracing frame of claim 1, it is characterized in that the surface of described rod iron has V font groove, the appearance stainless steel layer is coated and insert in the described V font groove.
3. by the non-maintaining ground network of the described power transmission line bracing frame of claim 1, it is characterized in that described conductive earthing rod connects with the stainless joint pipe, constitutes described grounding rack.
4. by the non-maintaining ground network of the described power transmission line bracing frame of claim 3, it is characterized in that described stainless joint pipe comprises stainless steel straight connector pipe and stainless steel T junction pipe.
5. by the non-maintaining ground network of the described power transmission line bracing frame of claim 4, it is characterized in that described stainless steel T junction pipe reaches the standard grade or earth electrode is connected with drawing in addition.
6. by the non-maintaining ground network of the described power transmission line bracing frame of claim 5, it is characterized in that described drawing reach the standard grade and being constructed as follows of earth electrode: its appearance is a stainless steel layer, tight coated rod iron in the appearance stainless steel layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200348316U CN201038348Y (en) | 2007-02-17 | 2007-02-17 | Transmission line bracket maintenance-free earthing network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200348316U CN201038348Y (en) | 2007-02-17 | 2007-02-17 | Transmission line bracket maintenance-free earthing network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201038348Y true CN201038348Y (en) | 2008-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200348316U Expired - Lifetime CN201038348Y (en) | 2007-02-17 | 2007-02-17 | Transmission line bracket maintenance-free earthing network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201038348Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618154A (en) * | 2013-11-14 | 2014-03-05 | 国家电网公司 | Anti-corrosion grounding device for electric transmission line tower and manufacturing method thereof |
| CN105186147A (en) * | 2015-09-30 | 2015-12-23 | 国网山东省电力公司经济技术研究院 | Lumped grounding device, power station grounding system and construction method |
| CN105244640A (en) * | 2015-11-10 | 2016-01-13 | 国家电网公司 | Flexible graphite grounding grid |
-
2007
- 2007-02-17 CN CNU2007200348316U patent/CN201038348Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103618154A (en) * | 2013-11-14 | 2014-03-05 | 国家电网公司 | Anti-corrosion grounding device for electric transmission line tower and manufacturing method thereof |
| CN103618154B (en) * | 2013-11-14 | 2016-08-31 | 国家电网公司 | A kind of for electric power line pole tower corrosion-resisting grounding device and preparation method thereof |
| CN105186147A (en) * | 2015-09-30 | 2015-12-23 | 国网山东省电力公司经济技术研究院 | Lumped grounding device, power station grounding system and construction method |
| CN105186147B (en) * | 2015-09-30 | 2017-10-10 | 国网山东省电力公司经济技术研究院 | A kind of lump type earthing or grounding means, power station earthed system and construction method |
| CN105244640A (en) * | 2015-11-10 | 2016-01-13 | 国家电网公司 | Flexible graphite grounding grid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080319 |