CN202839084U - Twin-twisted overhead line - Google Patents
Twin-twisted overhead line Download PDFInfo
- Publication number
- CN202839084U CN202839084U CN 201220413902 CN201220413902U CN202839084U CN 202839084 U CN202839084 U CN 202839084U CN 201220413902 CN201220413902 CN 201220413902 CN 201220413902 U CN201220413902 U CN 201220413902U CN 202839084 U CN202839084 U CN 202839084U
- Authority
- CN
- China
- Prior art keywords
- overhead wire
- multiple twin
- twisted
- utility
- steel reinforced
- 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
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000004411 aluminium Substances 0.000 claims description 13
- 239000004020 conductor Substances 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000005516 engineering process Methods 0.000 description 3
- 241000272165 Charadriidae Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Non-Insulated Conductors (AREA)
Abstract
The utility model discloses a twin-twisted overhead line which is formed by twisting two steel-reinforced aluminum cables, wherein the pitch ratio of the two steel-reinforced aluminum cables is 120-360 times. On the premise of guaranteeing the electric performances of the cable, the capabilities of vibration resistance, sag resistance and snow coverage resistance of the cable are greatly improved, the span between towers or the height of a pole is properly increased or lowered, the cost of the line is reduced, and the safety of the line is improved.
Description
Technical field
The utility model belongs to the cable technology field, relates in particular to a kind of multiple twin overhead wire.
Background technology
In built on stilts electric power distributing system, steel reinforced aluminium conductor is generally single laying, and under the climatic environment of cold, snow cover is on the twisted wire surface, and under strong wind blew, overhead wire was easy to vibration-generating, vertical arc and even fracture and collapses.
The utility model content
For this reason, technical problem to be solved in the utility model provides a kind of anti-vibration, the anti-icing multiple twin overhead wire that covers, the deficiency that exists to overcome prior art.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of multiple twin overhead wire is characterized in that: by two stranded forming of steel reinforced aluminium conductor, the pitch of described multiple twin overhead wire is than being 100-360 times.
The external diameter of described steel reinforced aluminium conductor is 8mm ~ 25mm, and the pitch of described multiple twin overhead wire is 2.4-3m.
The conductive area of described two steel reinforced aluminium conductors is identical.
Adopt technique scheme, multiple twin overhead wire of the present utility model has improved the anti-vibration of cable, anti-sag and anti-ice-snow covering power greatly under the prerequisite of guaranteeing the cable electrical performance, can suitably increase span or reduction tower bar height between tower, reduce the circuit cost, and improve the fail safe of circuit.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is elaborated:
Fig. 1 is structural representation of the present utility model;
Among the figure:
100-steel reinforced aluminium conductor.
Embodiment
As shown in Figure 1, multiple twin overhead wire of the present utility model is by two steel reinforced aluminium conductor 100 stranded forming that conductive section is identical.The pitch of this multiple twin overhead wire is 100-360 times than (ratio of pitch and steel reinforced aluminium conductor external diameter).
In a preferred embodiment, the external diameter of steel reinforced aluminium conductor is 8mm ~ 25mm, and the pitch a of described multiple twin overhead wire is 2.4 ~ 3m.
Be the figure of eight by two stranded multiple twin overhead wire cross sections that form of steel reinforced aluminium conductor, two strands of steel reinforced aluminium conductors have increased its self-damping performance because the figure of eight is stranded, thereby have improved anti-vibration and the anti-sag performance of circuit.Because of cable with the long-pitch pair twist, when meeting with accumulated snow, in the wind, slight rotation and displacement can occur in two strands of twisted wires, thereby shake off accumulated snow.For this reason, the long-pitch twisted-pair feeder has more excellent anti-vibration, anti-sag and anti-ice-snow covering performance, can suitably increase span or reduction tower bar height between tower, reduces the circuit cost, improve the fail safe of circuit, be applicable to laying of overhead transmission line under the abominable natural environment.
But, those of ordinary skill in the art will be appreciated that, above embodiment illustrates the utility model, and be not to be used as restriction of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.
Claims (3)
1. multiple twin overhead wire, it is characterized in that: by two stranded forming of steel reinforced aluminium conductor, the pitch ratio of described multiple twin overhead wire is 100 ~ 360 times.
2. multiple twin overhead wire according to claim 1, it is characterized in that: the external diameter of described steel reinforced aluminium conductor is 8mm ~ 25mm, the pitch of described multiple twin overhead wire is 2.4-3m.
3. multiple twin overhead wire according to claim 1, it is characterized in that: the conductive area of described two steel reinforced aluminium conductors is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220413902 CN202839084U (en) | 2012-12-24 | 2012-12-24 | Twin-twisted overhead line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220413902 CN202839084U (en) | 2012-12-24 | 2012-12-24 | Twin-twisted overhead line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202839084U true CN202839084U (en) | 2013-03-27 |
Family
ID=47950728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220413902 Expired - Lifetime CN202839084U (en) | 2012-12-24 | 2012-12-24 | Twin-twisted overhead line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202839084U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985441A (en) * | 2014-05-28 | 2014-08-13 | 山东中州电缆有限公司 | Ice and snow preventing aerial insulated cable and manufacturing method |
-
2012
- 2012-12-24 CN CN 201220413902 patent/CN202839084U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985441A (en) * | 2014-05-28 | 2014-08-13 | 山东中州电缆有限公司 | Ice and snow preventing aerial insulated cable and manufacturing 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 |
Granted publication date: 20130327 |
|
| CX01 | Expiry of patent term |