CN105931701A - Vibration damping lead formed by combining twisting steel cores and aluminum alloys - Google Patents
Vibration damping lead formed by combining twisting steel cores and aluminum alloys Download PDFInfo
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- CN105931701A CN105931701A CN201610304958.9A CN201610304958A CN105931701A CN 105931701 A CN105931701 A CN 105931701A CN 201610304958 A CN201610304958 A CN 201610304958A CN 105931701 A CN105931701 A CN 105931701A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/08—Several wires or the like stranded in the form of a rope
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/002—Auxiliary arrangements
- H01B5/006—Auxiliary arrangements for protection against vibrations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/22—Metal wires or tapes, e.g. made of steel
- H01B7/221—Longitudinally placed metal wires or tapes
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/008—Power cables for overhead application
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Abstract
The invention provides a vibration damping lead formed by combining twisting steel cores and aluminum alloys. The vibration damping lead makes it possible that each layer aluminum alloy and steel core have different intrinsic vibration frequencies which interference one another, so that energy generated from aeolian vibration is automatically consumed and vibration is damped. The vibration damping lead includes an inner core conductor and an outer layer conductor which are characterized in that the inner core conductor is specifically intertwisted by a plurality of high-intensity galvanized steel wires; the outer layer conductor includes at least two layers; each outer layer conductor is formed by combining a plurality of sections of the aluminum alloys which have same radian; the outer layer conductor in the innermost layer constitutes an enclosed first anchor ring structure; and each outer layer conductor separately constitutes an enclosed anchor ring structure; and the enclosed anchor ring structure constituted by the adjacent layers of outer layer conductors with respect to the outer layer form an annular inner space which is provided with the outer layer conductor with respect to the inner layer.
Description
Technical field
The present invention relates to the technical field of overhead transmission line, be specially a kind of steel core and aluminium alloy stranded conductor combination
The damping lead formed.
Background technology
Along with the development of national economy, power transfer capacity and fed distance increase rapidly, Large Copacity,
Transmission line of electricity puts into operation successively at a distance, and power delivery voltage improves the most therewith.Wire is as transmission line of electricity
The carrier of electrical power, is to ensure that the important component part of safe operation of power system.The vibration of overhead transmission line
Problem is a major issue in power transmission, existing relates to overhead transmission line, is just being substantially round wires
Advising stranded, self do not have effectiveness in vibration suppression, it is chronically under open field, by natural conditions (phoenix,
Rain, ice and snow, thunder and lightning etc.) and the impact of other external conditions, it is susceptible to various accident.Wherein due to
The accident that conductor vibration causes is most.Under wind action, the wire moment is in vibrational state, according to frequency
Rate and the difference of amplitude, the vibration of wire is broadly divided into three kinds: 1, high frequency aeolian vibration a little；2、
The secondary span vibration of width in intermediate frequency；3, the waving of the big amplitude of low frequency.These three vibration all can give wire and defeated
Electric line causes destruction in various degree.Wherein, the aeolian vibration of wire is the most frequent, when vibration continues
Between longer, the fatigue of wire usually can be caused to break stock, even break, cause the asymmetric operation in this loop,
It is the most disadvantageous that power system is stablized by this.
Summary of the invention
For the problems referred to above, the vibration damping that the invention provides a kind of steel core and aluminium alloy stranded conductor combination formation is led
Line, it makes the eigentone of each layer aluminium alloy wire and steel core different and interferes, thus
Automatically consume the energy of aeolian vibration, reach the effect of vibration damping.
The damping lead that a kind of steel core and aluminium alloy stranded conductor combination are formed, its technical scheme is such that it
Including interior core conductor, outer contact, it is characterised in that: described interior core conductor is specially some high intensity
The stranded formation of zinc-coated wire, described outer contact includes at least two-layer, the described outer contact of every layer by
The aluminium alloy wire combination formation that some sections of radians are identical, the envelope that the described outer contact combination of innermost layer is formed
Closing the first anchor ring structure, the described outer contact combination of every layer forms the most independent closing annuli arrangement,
The outer contact of adjacent opposed outer layer is provided with in being formed the round cavity that closing annuli arrangement is formed
The outer contact of internal layer relatively, the outer contact of adjacent opposed outer layer is formed closes the interior of annuli arrangement
Footpath is formed the external diameter closing annuli arrangement, described closing the first annulus more than the outer contact of relative internal layer
Described interior core conductor, the equivalent cylindrical of described interior core conductor it is provided with in the round cavity that face structure is formed
The diameter of anchor ring is less than the internal diameter of described closing the first anchor ring structure.
It is further characterized by
Described aluminium alloy wire specially cross section is the aluminium alloy wire of circular arc type, the cross section that some sections of radians are identical
Aluminium alloy wire for circular arc type combines the outer contact of formation respective layer；
Described aluminium alloy wire specially cross section is the aluminium alloy wire of Z-type, and cross section is the aluminium alloy wire of Z-type
Circle peripheral edge is arc-shaped edges, including external arc limit, Inner arc limit, described external arc limit, Inner arc limit
Middle part radian intersection connects formation overall structure, and adjacent bit is close in the inner of exposing on described external arc limit
The outer end that the Inner arc limit put is exposed, it is ensured that forming the anchor ring structure closed, some sections of radians are identical
Cross section is the outer contact of the aluminium alloy wire combination formation respective layer of Z-type；
When outer contact is N shell, when N is more than or equal to 2, the outer contact of adjacent opposed outer layer is formed
The internal diameter closing annuli arrangement is dM, and wherein M value is 2～N, and the outer layer of the most adjacent relative internal layer is led
It is D (M-1), D (M-1): dM=(0.8～0.9) that body is formed the external diameter of closing annuli arrangement, i.e. aluminum
The adjacent phase that gap is 0.1 to 0.2 times between the combined adjacent outer contact formed of alloy wire
Outer contact to outer layer is formed the internal diameter of closing annuli arrangement, and it guarantees that aluminium alloy wire is in working order
Enough gaps are still left between the aluminium alloy outer contact that lower heating phase is adjacent；
The external diameter of closing the first anchor ring structure that the described outer contact combination of innermost layer is formed is d1, institute
State a diameter of D, D:d1=0.85～0.9 of the equivalent cylindrical anchor ring of interior core conductor so that interior core conductor,
A certain amount of gap is left between the outer contact of innermost layer；
Some sections of aluminium alloy wire combinations of the described outer contact of same layer are mutual by spot welding after forming annulus
Connect, it is ensured that integrally-built stable；
Described interior core conductor is that seven high-strength galvanized steel wires are stranded according to the structure of+6 outer shrouds in 1 center
Formed；
Described interior core conductor is four stranded formation of high-strength galvanized steel wire.
After using technique scheme, by conventional round superalloy line being made with certain thick
The aluminium alloy wire of degree, forms the most independent closing annuli arrangement owing to the described outer contact of every layer combines,
The outer contact of adjacent opposed outer layer is provided with in being formed the round cavity that closing annuli arrangement is formed
The outer contact of internal layer relatively, the outer contact of adjacent opposed outer layer is formed closes the interior of annuli arrangement
Footpath is formed the external diameter closing annuli arrangement, described closing the first annulus more than the outer contact of relative internal layer
Described interior core conductor, the equivalent cylindrical of described interior core conductor it is provided with in the round cavity that face structure is formed
The diameter of anchor ring is less than the internal diameter of described closing the first anchor ring structure so that interior core conductor and innermost layer
Leave gap between the inwall of outer contact, between adjacent outer contact, leave gap, owing to there is gap,
Make to exist mutually between interior core conductor, outer contact intrinsic frequency of vibration, make wire in stress
During lower aeolian vibration, owing to the eigentone of each layer aluminium alloy wire and steel core is different and the most dry
Disturb, can automatically consume the energy of aeolian vibration, reach the effect of vibration damping.
Accompanying drawing explanation
Fig. 1 is the cross-sectional cut-away structural representation of the specific embodiment one of the present invention；
Fig. 2 is the cross-sectional cut-away structural representation of the specific embodiment two of the present invention；
Fig. 3 is the cross-sectional cut-away structural representation of the specific embodiment three of the present invention；
Fig. 4 is the combinative structure that two end sections are Z-type aluminium alloy wire signal enlarged drawing adjacent in Fig. 3；
In figure, the title corresponding to sequence number is as follows:
Interior core conductor 1, outer contact 2, zinc-coated wire 3, aluminium alloy wire 4, close first anchor ring knot
Structure the 5, first round cavity 6, equivalence cylindrical anchor ring the 7, first outer contact the 8, second outer contact 9,
3rd outer contact 10, external arc limit 11, Inner arc limit 12.
Detailed description of the invention
The damping lead that a kind of steel core and aluminium alloy stranded conductor combination are formed, is shown in Fig. 1～Fig. 4: it includes inner core
Conductor 1, outer contact 2, interior core conductor 1 is specially the some stranded formation of high-strength galvanized steel wire 3,
Outer contact 2 includes at least two-layer, and the outer contact of every layer is by the identical aluminium alloy wire 4 of some sections of radians
Combination is formed, closing the first anchor ring structure 5 that the outer contact combination of innermost layer is formed, the outer layer of every layer
Conductor combination forms the most independent closing annuli arrangement, and the outer contact of adjacent opposed outer layer is formed
Being provided with the outer contact of relative internal layer in closing the round cavity that annuli arrangement is formed, adjacent is relative
The outer contact of outer layer is formed the internal diameter closing annuli arrangement and is formed more than the outer contact of relative internal layer
Close the external diameter of annuli arrangement, set in closing the first round cavity 6 that the first anchor ring structure 5 is formed
Being equipped with interior core conductor 1, the diameter of the equivalent cylindrical anchor ring 7 of interior core conductor 1 is less than closing the first anchor ring knot
The internal diameter of structure.
When outer contact is N shell, when N is more than or equal to 2, the outer contact of adjacent opposed outer layer is formed
The internal diameter closing annuli arrangement is dM, and wherein M value is 3～N, and the outer layer of the most adjacent relative internal layer is led
It is D (M-1), D (M-1): dM=(0.8～0.9) that body is formed the internal diameter of closing annuli arrangement, i.e. aluminum
Gap between the combined adjacent outer contact formed of alloy wire 4 is 0.1 to 0.2 times adjacent
The outer contact of opposed outer layer is formed the internal diameter closing annuli arrangement, and it guarantees that aluminium alloy wire 4 is in work
Enough gaps are still left between the aluminium alloy outer contact that phase of generating heat under state is adjacent；
The external diameter of closing the first anchor ring structure 5 that the outer contact combination of innermost layer is formed is d1, inner core
A diameter of D, D:d1=0.85～0.9 of the equivalent cylindrical anchor ring 7 of conductor 1 so that interior core conductor 1,
A certain amount of gap is left between the outer contact of innermost layer；
Some sections of aluminium alloy wire 4 combinations of the outer contact of same layer are interconnected mutually by spot welding after forming annulus
Connect, it is ensured that integrally-built stable.
Specific embodiment one, see Fig. 1: aluminium alloy wire 4 specially cross section is the aluminium alloy wire of circular arc type, if
The aluminium alloy wire that cross section the is circular arc type combination that dry section radian is identical forms the outer contact of respective layer, outer layer
Conductor is two-layer, now N=2, and the outer contact of opposed outer layer is specially the second outer contact 9, outside second
It is d2 that layer conductor 9 is formed the internal diameter of closing annuli arrangement, and the outer contact of relative internal layer is that the first outer layer is led
Body 8, the first outer contact 8 formed close annuli arrangement external diameter be D1, internal diameter be d1, aluminium alloy
Line is superalloy material, and the work continuously of aluminium alloy wire 4 allows temperature to be 210 DEG C, D1:d2=0.8,
D:d1=0.85, owing to station temperature is high, therefore gap is relatively large, and the first outer contact 8 is by 16 sections
The first aluminium alloy wire combination that radian is identical forms corresponding closing the first anchor ring structure 5, and the second outer layer is led
Body 9 is formed closing the second anchor ring knot of correspondence by the second aluminium alloy wire combination that 30 two-stage nitration radians are identical
Structure；Interior core conductor 1 is specially seven high-strength galvanized steel wires 3 structure according to+6 outer shrouds in 1 center
Stranded formation, this structure makes overall structure consolidate, is easily assembled to.
Specific embodiment two, see Fig. 2: aluminium alloy wire 4 specially cross section is the aluminium alloy wire of circular arc type, if
The aluminium alloy wire that cross section the is circular arc type combination that dry section radian is identical forms the outer contact of respective layer, outer layer
Conductor is three layers, now N=3, includes first outer contact the 8, second outer contact the 9, the 3rd outer layer
Conductor 10, it is d3 that the 3rd outer contact 10 is formed the internal diameter of the 3rd closing annuli arrangement, the second outer layer
Conductor 9 formed second closing annuli arrangement internal diameter be d2, external diameter be D2, the first outer contact 8 institute
The internal diameter of composition the first closing annuli arrangement is d1, external diameter is D1, and aluminium alloy wire is heat-resisting aluminium alloy material
Matter, it works continuously and allows temperature is 150 DEG C, and D3:d2=D1:d2=0.9.D:d1=0.9, outside first
Layer conductor 8 is formed corresponding closing the first anchor ring by the first aluminium alloy wire combination that 16 sections of radians are identical
Structure 5, the second outer contact 9 is formed correspondence by the second aluminium alloy wire combination that 30 two-stage nitration radians are identical
Closing the second anchor ring structure, the 3rd outer contact 10 is by the identical 3 Al alloy line of 30 two-stage nitration radians
Combination forms corresponding closing the second anchor ring structure, and interior core conductor 1 is specially four High Strength Steel
Silk 3 is by stranded formation, and this structure makes overall structure consolidate, is easily assembled to.
Specific embodiment three, see Fig. 3, Fig. 4: aluminium alloy wire specially cross section is the aluminium alloy wire of Z-type,
Cross section is that the round peripheral edge of the aluminium alloy wire of Z-type is arc-shaped edges, including external arc limit 11, Inner arc limit
12, in the middle part of external arc limit 12, Inner arc limit 11, radian intersection connects formation overall structure, external arc
The outer end that the Inner arc limit 11 of adjacent position is exposed is close in the inner of exposing on limit 12, it is ensured that form closing
Anchor ring structure, the aluminium alloy wire that cross section the is Z-type combination that some sections of radians are identical is formed outside respective layer
Layer conductor, outer contact is two-layer, now N=2, and the outer contact of opposed outer layer the specially second outer layer is led
Body 9, it is d2 that the second outer contact 9 is formed the internal diameter of closing annuli arrangement, the outer contact of relative internal layer
Being the first outer contact 8, it is D1, internal diameter that the first outer contact 8 is formed the external diameter of closing annuli arrangement
For d1, aluminium alloy wire is heat-resisting aluminium alloy material, and it works continuously and allows temperature is 150 DEG C, D1:
D2=0.9.D:d1=0.9, the first outer contact 8 is by identical the first Z-type aluminium alloy wire group of section eight radian
Close and form corresponding closing the first anchor ring structure 5, the second outer contact 9 by 16 sections of radians identical the
Two Z-type aluminium alloy wire combinations form corresponding closing the second anchor ring structure；Interior core conductor 1 is specially seven
Root high-strength galvanized steel wire 3 is according to the stranded formation of structure of+6 outer shrouds in 1 center, and this structure makes whole
Body stabilized structure, it is easily assembled to.
It has the beneficial effect that: the vibration-absorbing mounting hollow wire of this steel core aluminum alloy stranded wire has following several respects excellent
Gesture:
(1), this wire can automatically consume the energy of aeolian vibration, reach effectiveness in vibration suppression；
(2), the highest use stress can reach the 60% of breakdown strength, therefore can strengthen line span；
(3), because line span can be strengthened, it is possible to reduce shaft tower radix；
(4), because to reduce shaft tower radix, it is possible to reduce the investment of line construction；
(5), reduce the wire fatigue caused because of aeolian vibration break stock market affairs therefore, increase the stability of circuit operation.
Above the specific embodiment of the present invention is described in detail, but content has been only the invention
Preferred embodiment, it is impossible to be considered the practical range for limiting the invention.All according to the invention
Impartial change that application range is made and improvement etc., all should still belong to the present invention patent covering scope it
In.
Claims (8)
1. the damping lead that steel core and aluminium alloy stranded conductor combination are formed, it includes interior core conductor, outer layer
Conductor, it is characterised in that: described interior core conductor is specially the some stranded formation of high-strength galvanized steel wire,
Described outer contact includes at least two-layer, and the described outer contact of every layer is by the identical aluminum of some sections of radians
Alloy wire combination is formed, closing the first anchor ring structure that the described outer contact combination of innermost layer is formed,
The described outer contact combination of every layer forms the most independent closing annuli arrangement, adjacent opposed outer layer
Outer contact is provided with the outer layer of relative internal layer and leads in being formed the round cavity that closing annuli arrangement is formed
Body, the outer contact of adjacent opposed outer layer is formed the internal diameter closing annuli arrangement more than relative internal layer
Outer contact is formed the external diameter closing annuli arrangement, the circle that described closing the first anchor ring structure is formed
In shape, intracavity is provided with described interior core conductor, and the diameter of the equivalent cylindrical anchor ring of described interior core conductor is less than institute
State the internal diameter closing the first anchor ring structure.
The damping lead that a kind of steel core the most as claimed in claim 1 and aluminium alloy stranded conductor combination are formed, its
Being characterised by: described aluminium alloy wire specially cross section is the aluminium alloy wire of circular arc type, some sections of radians are identical
The aluminium alloy wire that cross section is circular arc type combination formed respective layer outer contact.
The damping lead that a kind of steel core the most as claimed in claim 1 and aluminium alloy stranded conductor combination are formed, its
Being characterised by: described aluminium alloy wire specially cross section is the aluminium alloy wire of Z-type, cross section is that the aluminum of Z-type closes
The round peripheral edge of gold thread is arc-shaped edges, including external arc limit, Inner arc limit, described external arc limit, interior
In the middle part of arc-shaped edges, radian intersection connects formation overall structure, and the inner of exposing on described external arc limit is close to
The outer end that the Inner arc limit of adjacent position is exposed, it is ensured that form the anchor ring structure closed, some sections of radians
Identical cross section is the outer contact of the aluminium alloy wire combination formation respective layer of Z-type.
The damping lead that a kind of steel core the most as claimed in claim 1 and aluminium alloy stranded conductor combination are formed, its
It is characterised by: when outer contact is N shell, when N is more than or equal to 2, the outer contact of adjacent opposed outer layer
The internal diameter being formed closing annuli arrangement is dM, and wherein M value is 2～N, the most adjacent relative internal layer
It is D (M-1), D (M-1): dM=(0.8～0.9) that outer contact is formed the external diameter of closing annuli arrangement,
I.e. gap between the combined adjacent outer contact formed of aluminium alloy wire is 0.1 to 0.2 times adjacent
The outer contact of opposed outer layer formed the internal diameter closing annuli arrangement.
The damping lead that a kind of steel core the most as claimed in claim 4 and aluminium alloy stranded conductor combination are formed, its
It is characterised by: the external diameter of closing the first anchor ring structure that the described outer contact combination of innermost layer is formed is
D1, a diameter of D, D:d1=0.85～0.9 of the equivalent cylindrical anchor ring of described interior core conductor.
The damping lead that a kind of steel core the most as claimed in claim 1 and aluminium alloy stranded conductor combination are formed, its
It is characterised by: some sections of aluminium alloy wire combinations of the described outer contact of same layer are passed through a little after forming annulus
Weldering is connected with each other.
The damping lead that a kind of steel core the most as claimed in claim 1 and aluminium alloy stranded conductor combination are formed, its
It is characterised by: described interior core conductor is seven high-strength galvanized steel wires knots according to+6 outer shrouds in 1 center
The stranded formation of structure.
The damping lead that a kind of steel core the most as claimed in claim 1 and aluminium alloy stranded conductor combination are formed, its
It is characterised by: described interior core conductor is four stranded formation of high-strength galvanized steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610304958.9A CN105931701A (en) | 2016-05-10 | 2016-05-10 | Vibration damping lead formed by combining twisting steel cores and aluminum alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610304958.9A CN105931701A (en) | 2016-05-10 | 2016-05-10 | Vibration damping lead formed by combining twisting steel cores and aluminum alloys |
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| Publication Number | Publication Date |
|---|---|
| CN105931701A true CN105931701A (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610304958.9A Pending CN105931701A (en) | 2016-05-10 | 2016-05-10 | Vibration damping lead formed by combining twisting steel cores and aluminum alloys |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2678067Y (en) * | 2003-07-10 | 2005-02-09 | 特变电工股份有限公司 | Self-vibration absorbing insulation aerial cable |
| JP2007277637A (en) * | 2006-04-06 | 2007-10-25 | Tokyo Electric Power Co Inc:The | Aluminum for electric use, method for recycling aluminum wire, and electric wire |
| CN202601230U (en) * | 2012-04-10 | 2012-12-12 | 上海中天铝线有限公司 | Unsupported diameter-expanded steel-cored aluminum stranded wire |
| CN103887001A (en) * | 2014-04-16 | 2014-06-25 | 江苏藤仓亨通光电有限公司 | Composite cable |
| CN204166954U (en) * | 2014-11-04 | 2015-02-18 | 江苏宝安电缆有限公司 | A kind of self damping conductor |
-
2016
- 2016-05-10 CN CN201610304958.9A patent/CN105931701A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2678067Y (en) * | 2003-07-10 | 2005-02-09 | 特变电工股份有限公司 | Self-vibration absorbing insulation aerial cable |
| JP2007277637A (en) * | 2006-04-06 | 2007-10-25 | Tokyo Electric Power Co Inc:The | Aluminum for electric use, method for recycling aluminum wire, and electric wire |
| CN202601230U (en) * | 2012-04-10 | 2012-12-12 | 上海中天铝线有限公司 | Unsupported diameter-expanded steel-cored aluminum stranded wire |
| CN103887001A (en) * | 2014-04-16 | 2014-06-25 | 江苏藤仓亨通光电有限公司 | Composite cable |
| CN204166954U (en) * | 2014-11-04 | 2015-02-18 | 江苏宝安电缆有限公司 | A kind of self damping conductor |
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Application publication date: 20160907 |