CN203799738U - Low wind pressure and low noise lead wire - Google Patents
Low wind pressure and low noise lead wire Download PDFInfo
- Publication number
- CN203799738U CN203799738U CN201420205803.6U CN201420205803U CN203799738U CN 203799738 U CN203799738 U CN 203799738U CN 201420205803 U CN201420205803 U CN 201420205803U CN 203799738 U CN203799738 U CN 203799738U
- Authority
- CN
- China
- Prior art keywords
- aluminium alloy
- molded line
- alloy molded
- lead wire
- conductor
- 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
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 title abstract 9
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 66
- 239000004020 conductor Substances 0.000 claims abstract description 45
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 10
- 239000010410 layer Substances 0.000 abstract 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 2
- 229910052782 aluminium Inorganic materials 0.000 abstract 2
- 238000005728 strengthening Methods 0.000 abstract 1
- 239000002344 surface layer Substances 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Non-Insulated Conductors (AREA)
Abstract
The utility model relates to a lead wire and particularly a low wind pressure and low noise lead wire, belonging to the power transmission lead wire technology field. The low wind pressure and low noise lead wire comprises an outer layer conductor, an inner layer conductor and a center strengthening twisted wire. The outer layer conductor comprises a plurality of strands of aluminum alloy harnesses which are concentrically intertwisted on the outer surface of the inner layer conductor to form the outer layer conductor; each strand of the aluminum alloy comprises first aluminum alloy section wires, second aluminum alloy section wires and third aluminum alloy section wires which are successively positioned; the outer end surfaces of the first aluminum section wirse are provided with grooves along the length direction of the lead wire; and the outer end surfaces of the third aluminum section wires are provided with convex strips along the length direction of the lead wire. The low wind pressure and low noise lead wire is simple, compact and reasonable in structure, and the fact that the surface layer structure of the lead wire is changed by adding grooves and convex strips can reduce the wind resistance coefficient and reduce the noise.
Description
Technical field
The utility model relates to a kind of wire, and a kind of low blast low noise conductor, belongs to transmission pressure technical field specifically.
Background technology
Overhead transmission line is the main form of electric power transfer.Overhead transmission line system is comprised of steel tower, transmission pressure and gold utensil.Along with the development of power industry, the electric pressure of electrical network improves constantly, and steel tower height and gear are apart from also increase thereupon.Therefore, under wind action, can cause line system vibration and cause disconnected strand of wire, gold utensil damage, steel tower damage, the accident that can cause collapse of iron tower, circuit to destroy when serious.Therefore, very necessary to the research of the wind load of overhead transmission line system and structural response.
In the master-plan of transmission line, the Wind load calculating of transmission pressure has very important status, and for the suspended pattern power transmission tower of consumption maximum, wind load is the control load of structure.Reduce the suffered wind load of wire, can reduce the cost of transmission line tower structure, especially at coastal and high mountain air port windy area.Therefore reducing wire blast has great importance for the fail safe that reduces circuit cost and the operation of raising circuit.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned weak point, thereby a kind of low blast low noise conductor is provided, and by changing conductive line surfaces structure, has reduced wind resistance coefficient and has reduced noise.
The technical scheme providing according to the utility model, low blast low noise conductor comprises outer contact, inner conductor and center reinforcement twisted wire, and the coated inner conductor of twisted wire outer surface is strengthened at center, and inner conductor outer surface is coated outer contact; Inner conductor comprises a plurality of aluminium alloy molded line, the stranded formation inner conductor of a plurality of aluminium alloy molded line, it is characterized in that: described outer contact comprises multiply aluminium alloy type wire harness, multiply aluminium alloy type wire harness concentric stranding forms outer contact at inner conductor outer surface, per share aluminium alloy type wire harness comprises the first aluminium alloy molded line, the second aluminium alloy molded line and the 3 Al alloy molded line setting gradually, the first aluminium alloy molded line outer face is provided with groove along conductor length direction, and 3 Al alloy molded line outer face is provided with raised line along conductor length direction.
Further, the degree of depth of groove is 0.2 ~ 3mm, and the height of raised line is 0.5 ~ 2mm.
Further, the first aluminium alloy molded line of outer contact, the second aluminium alloy molded line and 3 Al alloy molded line adopt Z-type aluminium alloy molded line or watt type aluminium alloy molded line,
Further, the aluminium alloy molded line of inner conductor adopts Z-type aluminium alloy molded line or watt type aluminium alloy molded line.
Compared with the prior art the utility model has the following advantages:
The utility model is simple in structure, compact, reasonable, by changing wire surface structure, increases groove and raised line, has reduced wind resistance coefficient and has reduced noise.
Accompanying drawing explanation
Fig. 1 is embodiment mono-structural representation.
Fig. 2 is embodiment bis-structural representations.
Description of reference numerals: twisted wire, 4-the first aluminium alloy molded line, 4.1-groove, 5-the second aluminium alloy molded line, 6-3 Al alloy molded line, 6.1-raised line are strengthened in 1-outer contact, 2-inner conductor, 3-center.
Embodiment
The utility model is further described in connection with the embodiment in accompanying drawing below:
As shown in Figure 1 and 2, the utility model mainly comprises outer contact 1, inner conductor 2 and center reinforcement twisted wire 3, and the coated inner conductor 2 of twisted wire 3 outer surfaces is strengthened at center, and inner conductor 2 outer surfaces are coated outer contact 1.
Described outer contact 1 comprises multiply aluminium alloy type wire harness, and multiply aluminium alloy type wire harness concentric stranding forms outer contact 1 at inner conductor 2 outer surfaces.Per share aluminium alloy type wire harness comprises the first aluminium alloy molded line 4, the second aluminium alloy molded line 5 and the 3 Al alloy molded line 6 setting gradually, the first aluminium alloy molded line 4 outer faces are provided with groove 4.1, the 3 Al alloy molded line 6 outer faces along conductor length direction and are provided with raised line 6.1 along conductor length direction.The degree of depth of groove 4.1 is 0.2 ~ 3mm, and groove 4.1 can reduce wind resistance coefficient.The height of raised line 6.1 is 0.5 ~ 2mm, and raised line 6.1 can reduce wind noise.
Described inner conductor 2 comprises a plurality of aluminium alloy molded line, the stranded formation inner conductor 2 of a plurality of aluminium alloy molded line.
In embodiment mono-as shown in Figure 1, the first aluminium alloy molded line 4 of outer contact 1, the second aluminium alloy molded line 5 and 3 Al alloy molded line 6 adopt Z-type aluminium alloy molded line, and the aluminium alloy molded line of inner conductor 2 adopts Z-type aluminium alloy molded line.
In embodiment bis-as shown in Figure 2, the first aluminium alloy molded line 4 of outer contact 1, the second aluminium alloy molded line 5 and 3 Al alloy molded line 6 adopt watt type aluminium alloy molded line, and the aluminium alloy molded line of inner conductor 2 adopts watt type aluminium alloy molded line.
The utility model is for current existing plain conductor high deficiency of its wind resistance coefficient under high wind speed, by changing wire surface structure, increase groove and raised line, when wire is in wind field, because boundary layer separation occurs in lee face, recirculating zone is relatively little, and the pressure drag of wire reduces, although the frictional resistance of wire increases to some extent in boundary layer, but because pressure drag is the major part of resistance, therefore total resistance is less, and resistance coefficient is corresponding reducing also, and the blast of wire reduces.Make its at low wind speed lower than 25m/s, wind resistance coefficient is than identical with its plain conductor wind resistance coefficient with diameter, at high wind speed, surpass 25m/s to the high wind speed field of 60m/s, wind resistance coefficient is than reducing by 25%～35% with its plain conductor wind resistance coefficient with diameter, and noise reduces 20%～30%.
Claims (4)
1. a low blast low noise conductor, comprises outer contact (1), inner conductor (2) and center reinforcement twisted wire (3), and the coated inner conductor (2) of twisted wire (3) outer surface is strengthened at center, and inner conductor (2) outer surface is coated outer contact (1), inner conductor (2) comprises a plurality of aluminium alloy molded line, the stranded formation inner conductors of a plurality of aluminium alloy molded line (2), it is characterized in that: described outer contact (1) comprises multiply aluminium alloy type wire harness, multiply aluminium alloy type wire harness concentric stranding forms outer contact (1) at inner conductor (2) outer surface, per share aluminium alloy type wire harness comprises the first aluminium alloy molded line (4) setting gradually, the second aluminium alloy molded line (5) and 3 Al alloy molded line (6), the first aluminium alloy molded line (4) outer face is provided with groove (4.1) along conductor length direction, 3 Al alloy molded line (6) outer face is provided with raised line (6.1) along conductor length direction.
2. low blast low noise conductor as claimed in claim 1, is characterized in that: the degree of depth of described groove (4.1) is 0.2 ~ 3mm, and the height of raised line (6.1) is 0.5 ~ 2mm.
3. low blast low noise conductor as claimed in claim 1, it is characterized in that: the first aluminium alloy molded line (4) of described outer contact (1), the second aluminium alloy molded line (5) and 3 Al alloy molded line (6) adopt Z-type aluminium alloy molded line or watt type aluminium alloy molded line
4. low blast low noise conductor as claimed in claim 1, is characterized in that: the aluminium alloy molded line of described inner conductor (2) adopts Z-type aluminium alloy molded line or watt type aluminium alloy molded line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420205803.6U CN203799738U (en) | 2014-04-24 | 2014-04-24 | Low wind pressure and low noise lead wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420205803.6U CN203799738U (en) | 2014-04-24 | 2014-04-24 | Low wind pressure and low noise lead wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203799738U true CN203799738U (en) | 2014-08-27 |
Family
ID=51381934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420205803.6U Expired - Lifetime CN203799738U (en) | 2014-04-24 | 2014-04-24 | Low wind pressure and low noise lead wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203799738U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105825918A (en) * | 2016-06-08 | 2016-08-03 | 江苏亨通电力特种导线有限公司 | Overhead conductor with low wind pressure, low wind vibration and low noise |
| CN106297963A (en) * | 2016-08-11 | 2017-01-04 | 中国电力科学研究院 | The improvement of damping type wire of a kind of concentric stranding and improvement of damping method |
-
2014
- 2014-04-24 CN CN201420205803.6U patent/CN203799738U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105825918A (en) * | 2016-06-08 | 2016-08-03 | 江苏亨通电力特种导线有限公司 | Overhead conductor with low wind pressure, low wind vibration and low noise |
| CN106297963A (en) * | 2016-08-11 | 2017-01-04 | 中国电力科学研究院 | The improvement of damping type wire of a kind of concentric stranding and improvement of damping method |
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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: 20140827 |