CN202632866U - Icing resistance overhead conductor - Google Patents
Icing resistance overhead conductor Download PDFInfo
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- CN202632866U CN202632866U CN 201220179724 CN201220179724U CN202632866U CN 202632866 U CN202632866 U CN 202632866U CN 201220179724 CN201220179724 CN 201220179724 CN 201220179724 U CN201220179724 U CN 201220179724U CN 202632866 U CN202632866 U CN 202632866U
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- resistance
- icing
- aluminum
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Abstract
The utility model discloses an icing resistance overhead conductor. The icing resistance overhead conductor is characterized in that the conductor comprises a reinforcing core, an inner conductor, a metal band and an outer conductor, wherein the reinforcing core, the inner conductor, the metal band and the outer conductor are sequentially arranged from inside to outside. The inner conductor is coated outside the reinforcing core and is formed by concentrically stranding a group of aluminum or aluminum alloy single wires with the same trapezoidal cross section. The metal band is coated outside the inner conductor. The outer conductor is coated outside the metal band and is formed by concentrically stranding a group of aluminum or aluminum alloy single wires with the same trapezoidal cross section. The reinforcing core is formed by concentrically stranding 7 to19 round galvanized steel single wires. According to the utility model, the conductor product has the characteristics of icing resistance, wind vibration resistance and strong ability of corona resistance and radio interference resistance; in the condition of the same current-carrying capacity, the cross section can be reduced about 15% compared with an ordinary conductor; under the natural environment of rain and snow freezing weather, the conductor is an effective alternative to solve the problem of icing and damage of an overhead conductor; and the conductor is especially suitable for the electrical energy transmission of an overhead transmission line with rated voltage of 800KV and below.
Description
Technical field
The utility model belongs to electric power transfer and uses cable, relates to a kind of anti-ice cover aerial condutor.Particularly suitable is done the open-wire transmission line road and is used lead.This product can be used under the natural environment, and particularly winter, the sleet eternal frost climate took place to be applicable to that 800KV and following overhead transmission line lay in comparatively frequent Plain, hills, the mountain area electric power overhead transmission line.
Background technology
In the prior art; Aerial condutor generally is the aerial condutor of the many stranded formations of circular single line, because the inner space of lead accounts for 20% of whole conductor cross-section, the lead internal voids is big, the smooth surface rounding property is poor; The void space of lead inside is very easily by rain erosion; Cold of winter climate in addition, these rainwater or sleet will soon be condensed into ice cube attached on lead inside and the surface, thereby produce wire icing.
The reason that coated by ice of overhead power transmission line produces: mainly be airborne snow slush sleet; Around lead, condensing into ice cube forms; Gravity that these icing increase will pass to lead, insulator, shaft tower and backguy; As long as one of them link is born incessantly because of the weight that wire icing increased, the accident that tower (bar) just will occur down and break makes power transmission lines receive heavy damage.
Summary of the invention
The purpose of the utility model is intended to overcome above-mentioned deficiency of the prior art; Through adopt trapezoidal single line closely stranded, in time outer closely tight modes such as parcel (one or more layers is identical with conductive material) metal tape of lead, thereby a kind of have favorable mechanical performance, electric property, anti-ice cover aerial condutor that the anti-ice cover ability is strong are provided.This lead can be widely used in the length in the comparatively frequent Plain of sleet eternal frost climate generation in winter, hills, mountain area apart from the electric power overhead transmission line.
The technical solution of the utility model is: a kind of anti-ice cover aerial condutor; It is characterized in that: this lead comprises from inside to outside and to be provided with in order: strengthening core (3); Be coated on strengthening core (3) inner wire (2) outer, that constitute by the aluminum or aluminum alloy single line concentric stranding of one group of (generally can be 12-84) identical trapezoid cross section; Be coated on the outer metal tape (1) of inner wire (2) and (can be one or more layers; Be generally 1-3 layers), and be coated on metal tape (1) outer conductor (4) outer, that constitute by the aluminum or aluminum alloy monofilament concentric stranding of one group of (generally can be 18-36) identical trapezoid cross section.
In the technical solution of the utility model: said strengthening core (3) is preferably the strengthening core (3) that is made up of 7-19 circular zinc-coated wire single line concentric strandings, makes strengthening core (3) not only satisfy requirement of strength, but also have suitable flexibility.
The diameter of each circular zinc-coated wire single line is 0.8-3.8mm preferably in the said strengthening core (3).
In the technical solution of the utility model: said inner wire (2) and single line in the outer conductor (4) all are that long limit is a circular arc, single line with identical trapezoid cross section, identical material and identical physical dimension preferably.
In the technical solution of the utility model: said metal tape (1) is preferably the metal tape (1) and inner wire (2) and outer conductor (4) with identical material with inner wire (2) and outer conductor (4).
In the technical solution of the utility model: said inner wire (2) can be 1-3 layers.
The structural principle of the utility model is: the conductor center is the strengthening core 3 that is formed by 7 of same diameter and above zinc-coated wire concentric stranding; Strengthening core 3 appearances become an integral body by the aluminum or aluminum alloy single line concentric stranding of many identical trapezoid cross sections, form inner wire 2; At inner wire 2 surface one or more layers metal tapes 1 of parcel; The aluminum or aluminum alloy monofilament concentric stranding of many identical trapezoid cross sections constitutes outer conductor 4 in metal tape 1 surface.
Compared with prior art, the utlity model has following characteristics and beneficial effect:
(1) the utility model product has smooth surface rounding, compact internal structure, the difficult characteristics that produce icing in surface; Since adopted the cross section be trapezoidal aluminum or aluminum alloy single line as conductor, (density can reach 96%) reduced in the lead internal voids space that concentric stranding is gone out; Simultaneously, at time outer closely tight parcel of lead the metal tape identical with conductive material, airborne like this water smoke or rainwater can not get into and be condensed into ice cube in it; The smooth rounding in the lead face of cylinder after closely stranded makes rainwater or sleet not form icing attached to conductive line surfaces;
(2) the utility model structure has the advantages that wind resistance shakes; Because the tight internal voids of conductor structure is little, under the situation of identical ampacity, actual cross-section has reduced 15% than the cross section of plain conductor.Simultaneously also reduce wire diameter, thereby promoted the ability that the lead wind resistance shakes;
(3) the utility model structure has the strong characteristics of anti-corona ability; At time outer tight metal tape identical that wrapped up of lead tightly with conductive material, improved the uniformity that the inner gradient electric field of lead distributes effectively, and the smooth rounding of conductive line surfaces; Therefore, the utility model lead is compared anti-corona ability and has been obtained greatly promoting and improving with plain conductor, has guaranteed that lead fails power supply quality;
(4) the utility model product characteristic: have that anti-ice cover, wind resistance shake, anti-corona and strong characteristics of radio interference ability; Under the situation of identical ampacity, compare the cross section with plain conductor and can reduce about 15%; When the sleet freezing weather that occurs, water is difficult for solidifying icing in conductive line surfaces in the winter time; The steel wire of central core does not allow to be subject to the corrosion of rainwater; So lead not only has anti-ice and snow, corrosion resistance characteristic, also have the harm that reduces aeolian vibration and wave, also can reduce the level of corona and radio interference simultaneously; Make the noise hazard of transmission line lower, more environmental protection; Can being widely used in the winter time, the sleet eternal frost climate takes place in the electric power overhead transmission line in comparatively frequent Plain, hills, mountain area.Under the natural environment of China's south most of areas sleet eternal frost climate, be effective substitute products of common aerial condutor; Simple in structure, production and processing is easy, and is functional, practical.
Description of drawings
Fig. 1 is the utility model embodiment 1 structural representation;
Fig. 2 be Fig. 1 radially analyse and observe the structure for amplifying sketch map.
Among the figure: 1-metal tape, 2-inner wire, 3-strengthening core, 4-outer conductor.
Embodiment
The utility model is described further through embodiment below in conjunction with accompanying drawing.
Embodiment 1: referring to each accompanying drawing.
A kind of anti-ice cover aerial condutor; This lead comprises from inside to outside setting in order: strengthening core 3; Be coated on strengthening core 3 inner wire 2 outer, that constitute by the aluminum or aluminum alloy single line concentric stranding of one group of (generally can be 12-84) identical trapezoid cross section; Be coated on inner wire 2 outer metal tapes 1 and (can be one or more layers; Generally can be 1-3 layers), and be coated on metal tape 1 outer conductor 4 outer, that constitute by the aluminum or aluminum alloy monofilament concentric stranding of one group of (generally can be 18-36) identical trapezoid cross section;
Said strengthening core 3 is the strengthening cores 3 that are made up of 7 circular zinc-coated wire single line concentric strandings, makes strengthening core 3 not only satisfy requirement of strength, but also have suitable flexibility; (diameter of each circular zinc-coated wire single line is 0.8-3.8mm) preferably in the said strengthening core 3;
Said inner wire 2 and single line in the outer conductor 4 all are that long limit is a circular arc, single line with identical trapezoid cross section, identical material and identical physical dimension;
Said metal tape 1 is the metal tapes 1 and inner wire 2 and outer conductor 4 with identical material with inner wire 2 and outer conductor 4;
Said inner wire 2 can be 1-3 layers.
Embodiment 2: referring to each accompanying drawing.
A kind of anti-ice cover aerial condutor is provided with from inside to outside in order: the strengthening core 3 that 7 and above circular zinc-coated wire single line concentric stranding form; Many long limits are the trapezoidal aluminum or aluminum alloy single line of circular arc, the inner wire 2 that forms along strengthening core 3 surperficial concentric strandings; Conductive line surfaces time is outer to coat one or more layers metal tape 1 identical with conductor 4 materials with conductor 2; And many long limits of outermost layer are the trapezoidal aluminum or aluminum alloy single line of circular arc; 4 compositions of outer conductor that form along metal tape 1 surperficial concentric stranding.
The same prior art of the preparation method of the foregoing description product.In the lead product of the foregoing description, will have circular backguy mould now and change trapezoidal backguy mould into, can prepare trapezoidal single line; On existing wire twisting equipment, can realize concentric stranding; On existing wire twisting equipment, set up coating unit, can realize that metal tape coats.
The lead product of the foregoing description is compared with prior art products, and anti-ice cover, the wind resistance that has promoted the lead product largely shakes, the ability of anti-corona and anti-radio interference.Be applicable to that 800KV and following overhead transmission line lay.
The lead product of the foregoing description; The single line of circular cross-section is manufactured the single line of trapezoid cross section; Processing mode according to concentric stranding closely is twisted into lead; Reduce the inner void space of lead so effectively, under the situation that current carrying capacity of conductor does not change, reduced the external diameter of lead.Obtained the conductive line surfaces of smooth roundness simultaneously, made rainwater or sleet be difficult for adhering to into icing in conductive line surfaces.The conductive line surfaces of smooth roundness also can make the lead wind resistance ability of shaking strengthen.Time outer closely tight parcel (one or more layers is identical with conductive material) metal tape at lead congeals into ice thereby make rainwater can't get into lead inside, and the effect of the inner gradient electric field of balanced lead is also arranged simultaneously, and the anti-corona ability of lead is strengthened.
Said material in the utility model technical solution and the foregoing description is existing commercially available material.
The not concrete same prior art of narrating of technology contents in the utility model technical solution and the foregoing description.
The utility model is not limited to the foregoing description, and the utility model content is said all can implement and have said good result.
Claims (6)
1. anti-ice cover aerial condutor; It is characterized in that: this lead comprises from inside to outside and to be provided with in order: strengthening core (3); Be coated on strengthening core (3) inner wire (2) outer, that constitute by the aluminum or aluminum alloy single line concentric stranding of one group of identical trapezoid cross section; Be coated on the outer metal tape (1) of inner wire (2), and be coated on metal tape (1) outer conductor (4) outer, that constitute by the aluminum or aluminum alloy monofilament concentric stranding of one group of identical trapezoid cross section.
2. by the described anti-ice cover aerial condutor of claim 1, it is characterized in that: said strengthening core (3) is the strengthening core (3) that is made up of 7-19 circular zinc-coated wire single line concentric strandings.
3. by the described anti-ice cover aerial condutor of claim 2, it is characterized in that: the diameter of each circular zinc-coated wire single line is 0.8-3.8mm in the said strengthening core (3).
4. by claim 1,2 or 3 described anti-ice cover aerial condutors, it is characterized in that: the single line that said inner wire (2) and single line in the outer conductor (4) all are that to grow the limit be circular arc, have identical trapezoid cross section, identical material and identical physical dimension.
5. by claim 1,2 or 3 described anti-ice cover aerial condutors, it is characterized in that: said metal tape (1) is the metal tape (1) and inner wire (2) and outer conductor (4) with identical material with inner wire (2) and outer conductor (4).
6. by claim 1,2 or 3 described anti-ice cover aerial condutors, it is characterized in that: said inner wire (2) is 1-3 layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220179724 CN202632866U (en) | 2012-04-25 | 2012-04-25 | Icing resistance overhead conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220179724 CN202632866U (en) | 2012-04-25 | 2012-04-25 | Icing resistance overhead conductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202632866U true CN202632866U (en) | 2012-12-26 |
Family
ID=47386029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220179724 Expired - Lifetime CN202632866U (en) | 2012-04-25 | 2012-04-25 | Icing resistance overhead conductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202632866U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105469897A (en) * | 2015-12-31 | 2016-04-06 | 无锡市曙光电缆有限公司 | Reinforced compressive coaxial aerial cable |
| CN105810301A (en) * | 2016-05-13 | 2016-07-27 | 江苏亨通高压电缆有限公司 | Large-section seabed DC cable specially-shaped conductor |
| CN107146657A (en) * | 2016-03-01 | 2017-09-08 | 中国电力科学研究院 | A kind of low blast wire of oval cross section |
-
2012
- 2012-04-25 CN CN 201220179724 patent/CN202632866U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105469897A (en) * | 2015-12-31 | 2016-04-06 | 无锡市曙光电缆有限公司 | Reinforced compressive coaxial aerial cable |
| CN107146657A (en) * | 2016-03-01 | 2017-09-08 | 中国电力科学研究院 | A kind of low blast wire of oval cross section |
| CN105810301A (en) * | 2016-05-13 | 2016-07-27 | 江苏亨通高压电缆有限公司 | Large-section seabed DC cable specially-shaped conductor |
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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: 20121226 |
|
| CX01 | Expiry of patent term |