CN204391294U - Anti-corrosion type down conductor - Google Patents
Anti-corrosion type down conductor Download PDFInfo
- Publication number
- CN204391294U CN204391294U CN201320651595.8U CN201320651595U CN204391294U CN 204391294 U CN204391294 U CN 204391294U CN 201320651595 U CN201320651595 U CN 201320651595U CN 204391294 U CN204391294 U CN 204391294U
- Authority
- CN
- China
- Prior art keywords
- down conductor
- casing pipe
- corrosion
- soil
- anticorrosive casing
- 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.)
- Expired - Lifetime
Links
- 239000004020 conductor Substances 0.000 title claims abstract description 57
- 238000005260 corrosion Methods 0.000 title claims abstract description 25
- 239000004411 aluminium Substances 0.000 claims abstract description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 17
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 6
- 239000008397 galvanized steel Substances 0.000 claims description 6
- 230000007797 corrosion Effects 0.000 abstract description 12
- 239000002689 soil Substances 0.000 abstract description 12
- 238000005056 compaction Methods 0.000 abstract description 3
- 238000002788 crimping Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 238000005530 etching Methods 0.000 abstract description 2
- 230000001131 transforming effect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Manufacturing Of Electrical Connectors (AREA)
Abstract
The utility model discloses a kind of anti-corrosion type down conductor, inventor passes through at down conductor body peripheral hardware anticorrosive casing pipe (as seamless aluminium tubing), effectively down conductor body and soil are isolated, avoid the directly etching of the harmful substance in soil to down conductor, significant prolongation useful life of down conductor, itself and ground network being matched running time, reducing the frequency because transforming earthing device after down conductor corrosion.The utility model structure is simple, construction is convenient flexibly, as long as existing down conductor bury position cover anticorrosive casing pipe, then by fixing for anticorrosive casing pipe crimping downlead body, down conductor buries when burying underground the soil compaction at position by backfill, effectively alleviate the labour intensity of power network line attendant, greatly save the fund of ground network reconstruction.
Description
Technical field
The utility model belongs to the earthing device technical field of HVDC (High Voltage Direct Current) transmission line, and particularly relating to is a kind of anti-corrosion type down conductor.
Background technology
Hvdc transmission line the design of grounding service life is 8 years, but find in production run is safeguarded, the superhigh pressure put into operation, extra high voltage direct current transmission line tower grounding net generally run and within about 4 years, just there will be the more serious corrosion of down conductor, cause whole earthing device impulse earthed resistance to increase, lightning protection requirement can not be met.Compared with HVAC power transmission line, even more serious, the corrosion rate of DC line tower grounding net corrosion is faster, and particularly to enter ground part (the above 10cm in ground, below ground 10cm) corrosion even more serious compared with other parts for tower grounding downlead.The down conductor used in present transmission line is substantially all Φ 12(diameter is 12mm) galvanized steel bar, run 3 ~ 4 years down conductors cross section, position of burying obviously to corrode and reduce, although the power frequency earthing resistance measured value of the ground network of some local corrosion is also little, but when being struck by lightning impulse current effect, because the ground network sectional area of local heavy corrosion diminishes or disconnects, lightning current ability of releasing is restricted, and easily causes circuit back flashover fault.Meanwhile, because down conductor buries the serious fast corrosion of part, line-to-ground plant modification need frequently be carried out, and earthing device is buried, the feature in dispersion field makes line upkeep workload large, cost is high.Therefore, the earthing device of power transmission line needing a kind of improvement badly solves the problems referred to above.
Utility model content
The technical problems to be solved in the utility model is to provide that a kind of structure is simple, economical and practical, processing ease, conveniently anti-corrosion type down conductor, to extend the useful life of ultra-high-tension power transmission line down conductor, the Acceptable life of down conductor is made to extend to 8 years by original 4 years, match with the ground network life-span, and strengthen the lightning current ability of releasing of whole earthing device, avoid power transmission line lightning shielding to strike back the generation of fault.
For solving the problems of the technologies described above, the utility model by the following technical solutions: anti-corrosion type down conductor, comprises down conductor body, down conductor body peripheral hardware anticorrosive casing pipe.
Anticorrosive casing pipe is located at down conductor body and enters position, ground.
Down conductor body is galvanized steel bar, and anticorrosive casing pipe is seamless aluminium tubing.
Galvanized steel bar diameter 12mm, seamless aluminium tubing internal diameter is 13mm, thickness of pipe wall 2 ~ 4mm.
The long 30cm of seamless aluminium tubing.
The using method of above-mentioned anti-corrosion type down conductor, anticorrosive casing pipe is enclosed within the position crimping of burying of down conductor body fixing, down conductor buries when burying underground the soil compaction at position by backfill, and down conductor anticorrosive casing pipe contact with soil closely, and reduction is struck by lightning impulse earthed resistance.
For the grounding device corrosion phenomenon distinct issues of current HVDC (High Voltage Direct Current) transmission line, inventor passes through at down conductor body peripheral hardware anticorrosive casing pipe (as seamless aluminium tubing), effectively down conductor body and soil are isolated, avoid the directly etching of the harmful substance in soil to down conductor, significant prolongation useful life of down conductor, itself and ground network are matched running time, reduces because of the frequency to ground connection plant modification after down conductor corrosion.The utility model structure is simple, construction is convenient flexibly, as long as existing down conductor bury position cover anticorrosive casing pipe, then by fixing for anticorrosive casing pipe crimping downlead body, down conductor buries when burying underground the soil compaction at position by backfill, effectively alleviate the labour intensity of power network line attendant, greatly save the fund of ground network reconstruction.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model anti-corrosion type down conductor.
In figure: 1 down conductor body, 2 seamless aluminium tubings, 3 ground.
Embodiment
As shown in Figure 1, anti-corrosion type down conductor of the present utility model, comprise the down conductor body 1 of Φ 12 galvanized steel bar, the two ends of down conductor body 1 connect shaft tower and ground network respectively, and down conductor body 1 enters ground position peripheral hardware seamless aluminium tubing 2(internal diameter 13mm, tube wall 2 ~ 4mm, pipe range 30cm).
When tower grounding device is constructed, first down conductor body 1 is bent shaping, seamless aluminium tubing 2 is inserted in down conductor body 1, make the contact position being centrally located at down conductor body 1 and ground 3 of seamless aluminium tubing 2, seamless aluminium tubing 2 is crimped on down conductor body 1, seamless aluminium tubing is fixed, then down conductor body is welded with ground network, and be connected on steel tower, soil is backfilling and compacted.
Because aluminium is easy to the oxidized aluminium oxide rete forming densification, make it to be difficult to, again with oxygen reaction, therefore to there is compared with steel better corrosion resistance.Seamless aluminium tubing is placed in down conductor body to bury position outside being wrapped in, effectively having isolated the harmful substances such as the acid in soil, alkali, salt to the corrosion of down conductor, thus played the object of protective earthing downlead, greatly strengthen its useful life.Meanwhile, the electric conductivity of aluminium is stronger than iron, after down conductor has laid, is backfilling and compacted by down conductor surrounding soil, contacts closely with soil, also enhances rate of release and the ability of thunder-strike current.
Claims (4)
1. an anti-corrosion type down conductor, comprises down conductor body, it is characterized in that: described down conductor body peripheral hardware anticorrosive casing pipe; Described down conductor body is galvanized steel bar, and described anticorrosive casing pipe is seamless aluminium tubing.
2. anti-corrosion type down conductor according to claim 1, is characterized in that: described anticorrosive casing pipe is located at down conductor body and enters position, ground.
3. anti-corrosion type down conductor according to claim 2, is characterized in that: described galvanized steel bar diameter 12mm, and described seamless aluminium tubing internal diameter is 13mm, thickness of pipe wall 2 ~ 4mm.
4. anti-corrosion type down conductor according to claim 3, is characterized in that: the long 30cm of described seamless aluminium tubing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320651595.8U CN204391294U (en) | 2013-10-22 | 2013-10-22 | Anti-corrosion type down conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320651595.8U CN204391294U (en) | 2013-10-22 | 2013-10-22 | Anti-corrosion type down conductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204391294U true CN204391294U (en) | 2015-06-10 |
Family
ID=53363985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320651595.8U Expired - Lifetime CN204391294U (en) | 2013-10-22 | 2013-10-22 | Anti-corrosion type down conductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204391294U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500887A (en) * | 2013-10-22 | 2014-01-08 | 中国南方电网有限责任公司超高压输电公司南宁局 | Anti-corrosion down conductor and use method of anti-corrosion down conductor |
-
2013
- 2013-10-22 CN CN201320651595.8U patent/CN204391294U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103500887A (en) * | 2013-10-22 | 2014-01-08 | 中国南方电网有限责任公司超高压输电公司南宁局 | Anti-corrosion down conductor and use method of anti-corrosion down conductor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103500887A (en) | Anti-corrosion down conductor and use method of anti-corrosion down conductor | |
| CN201975524U (en) | Arrangement structure for lightning protection grounding device of power tower | |
| CN103618154B (en) | A kind of for electric power line pole tower corrosion-resisting grounding device and preparation method thereof | |
| CN103219597B (en) | Grounding wire device | |
| CN103326139B (en) | Hollow aluminum alloy tube grounding device capable of being assembled | |
| CN206815933U (en) | A kind of multifunctional grounded transmission of electricity cement pole | |
| CN205231265U (en) | Portable earthing device | |
| CN204391294U (en) | Anti-corrosion type down conductor | |
| CN202930571U (en) | Ultra high voltage transmission line tower grounding device | |
| CN203352125U (en) | Flexible fireproof cable pre-branched coupler | |
| CN113189146B (en) | Device and method for monitoring ground crack landslide through conductive concrete grounding grid | |
| CN203910986U (en) | A low-resistance and anticorrosion type grounding module used for lightning protection | |
| CN205141159U (en) | Flexible graphite ground net | |
| CN203910988U (en) | Cage type structure anticorrosion resistance reducing grounding pole suitable for small grounding net | |
| CN202759030U (en) | Electric power grounding grid | |
| CN204809570U (en) | Netted formula lightning grounding line of electric power | |
| CN104103337A (en) | Graphite cable connected in flat-body manner | |
| CN203589235U (en) | Grounding pole convenient for installation | |
| CN203012211U (en) | Optical cable cross-connecting box with isolating base | |
| CN204947119U (en) | The insulated platform earth connection of improvement | |
| CN208753548U (en) | A kind of novel shaft tower grounding-for-lightning device | |
| CN205429193U (en) | Compound lightning ground connection | |
| CN105789928A (en) | Electric power grounding grid | |
| CN202940013U (en) | Anticorrosion flame-retardant fireproof low-ground resistance through ground wire | |
| CN209150316U (en) | Power distribution network differentiated lightning protection non-metallic ion grounding body |
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: 20150610 |