CN206340357U - High-strength steel core aluminum alloy stranded wire - Google Patents
High-strength steel core aluminum alloy stranded wire Download PDFInfo
- Publication number
- CN206340357U CN206340357U CN201621352939.5U CN201621352939U CN206340357U CN 206340357 U CN206340357 U CN 206340357U CN 201621352939 U CN201621352939 U CN 201621352939U CN 206340357 U CN206340357 U CN 206340357U
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- Prior art keywords
- layer
- aluminum alloy
- conductive layer
- strength
- steel wire
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- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 41
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 31
- 239000010959 steel Substances 0.000 title claims abstract description 31
- 238000009413 insulation Methods 0.000 claims abstract description 26
- 238000005728 strengthening Methods 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 34
- 239000008397 galvanized steel Substances 0.000 claims description 34
- 239000011347 resin Substances 0.000 claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 238000009422 external insulation Methods 0.000 claims description 6
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 6
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 6
- 238000004804 winding Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 abstract description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 241000272165 Charadriidae Species 0.000 description 1
- 241000218202 Coptis Species 0.000 description 1
- 235000002991 Coptis groenlandica Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Landscapes
- Prevention Of Electric Corrosion (AREA)
- Non-Insulated Conductors (AREA)
Abstract
The utility model is related to electric power transmission lead, disclose a kind of high-strength steel core aluminum alloy stranded wire, twisted wire body including circular in cross-section, twisted wire body ecto-entad is provided with coaxially arranged some conductive layers, the strengthening core coaxial with conductive layer is provided with the center of twisted wire body, interior insulation set provided with annular between the conductive layer and strengthening core of innermost layer, interior insulation set has been distributed uniformly and circumferentially some arc grooves, the conductive layer of innermost layer is constituted by corresponding to some high-strength aluminum alloy single lines contacted respectively with the arc groove that interior insulation is put, the number of the high-strength aluminum alloy single line of the conductive layer of composition from inside to outside increases by 6 successively on the basis of the conductive layer of innermost layer, tensile strength >=315Mpa of high-strength aluminum alloy single line.High-strength steel core aluminum alloy stranded wire of the present utility model has good tensile strength, anti-overload ability and fatigue resistance, adapts to the serious natural calamity weather such as sleet and snow ice.
Description
Technical field
The utility model is related to a kind of electric power transmission lead, more particularly to the frame that a kind of sag characteristic is good, tensile strength is high
Empty high-strength steel core aluminum alloy stranded wire.
Background technology
The transmission pressure used in long distance powedr transmission engineering is generally the stranded gold thread of aluminium, but its tensile strength is general, anti-mistake
Loading capability and fatigue resistance are weak.Transmission pressure serious, the transmission of electricity in span of hanging ice in the winter time or when meeting with serious ice disaster
Wire deadweight is broken the transmission pressure in the span plus specified pull-off force of the ice weight more than transmission pressure is hung, and causes
Broken string has a power failure, and forgets about it the failures such as stringing steel tower.Some areas of the whole nation often met with extremely rare sleet and snow ice weight in recent years
Ice is hung on the Nature disaster, transmission pressure seriously, electrical network facilities subject to severe risks of damage makes the people normally produce and live by tight
Ghost image rings.Serious ice disaster reminds our palpuses to improve the ability that hazard weather was resisted and taken precautions against to power network.Chinese patent
CN201758013U, on March 9 2011 day for announcing, discloses a kind of aluminium alloy core twisted wire, including aluminium alloy wire layer, aluminium alloy
Alternately quantity equal aluminium alloy wire and aluminum steel are arranged with outside sandwich layer.But the aluminium alloy wire line tensile strength is general, do not apply to still
Often occurs the area of sleet and snow ice major natural disasters.
Utility model content
Tensile strength for existing aluminium alloy wire is general, in the winter time or occurs holding during sleet and snow ice major natural disasters
Easily it is broken, causes broken string to have a power failure, the problem of forgetting about it the failures such as stringing steel tower, the purpose of this utility model is to provide a kind of
It is suitable over long distances it is built on stilts use have that tensile strength is big, sag characteristic is good, anti-overload ability and strong high-strength of fatigue resistance
Spend steel core aluminum alloy stranded wire.
The technical solution of the utility model is as follows：
A kind of high-strength steel core aluminum alloy stranded wire, includes the twisted wire body of circular in cross-section, the twisted wire body is by outer
Some conductive layers of coaxial line arrangement are provided inwardly with, the strengthening core with conductive layer coaxial line is provided with the center of twisted wire body,
Interior insulation set provided with annular between the conductive layer and strengthening core of innermost layer, the interior insulation set reclines the conductive layer of innermost layer
Side has been distributed uniformly and circumferentially some arc grooves, and the conductive layer of innermost layer with the arc groove that interior insulation is put by dividing
Some high-strength aluminum alloy single lines composition that Dui Ying do not contact, the high-strength aluminum alloy single line of the conductive layer of composition from inside to outside
Number increase by 6 successively on the basis of the conductive layer of innermost layer, the tensile strength of the high-strength aluminum alloy single line >=
315Mpa。
Minimum tensile strength is 315Mpa before aluminium alloy single line of the present utility model is twisted, and is the aluminium of common same radius specification
Alloy single line twists more than twice of preceding minimum tensile strength 160Mpa, and effectively realizing is not increasing conductive layer area and wire diameter
In the case of make, the specified pull-off force of transmission line brings up to 523.35kN from 329.85kN, draws anharmonic ratio to be brought up to from 7.9km
12.5km, anti-overload ability is strong, realizes and improved that in the case of transmission line weight is not increased super-pressure or extra-high voltage hand over power transmission line
The security performance on road.The high-strength aluminum alloy single line of conductive layer of the arc groove with constituting innermost layer is in close contact, and is improved and is led
Electric layer is with respect to interior insulation sheath, the center binding force of strengthening core.The number of the high-strength aluminum alloy single line of conductive layer from inside to outside
Mesh outwards increases by 6 successively on the basis of the conductive layer of innermost layer, the sag characteristic of transmission line is effectively increased, using more
Safety.
As a kind of improvement of the present utility model, the conductive layer is provided with 4 layers, and the conductive layer of innermost layer is by 12 high intensity
Aluminium alloy single line is constituted.The sag characteristic of such transfer wire is good, and security performance is high.
As a modification of the present invention, strengthening core include interior galvanized steel wire layer, middle galvanized steel wire layer and with interior insulation set
The external galvanized layer steel wire layer of contact, interior galvanized steel wire layer is made up of a galvanized steel wire, and middle galvanized steel wire layer is by zinc-plated in 6 windings
The galvanized steel wire composition of steel wire layer, external galvanized layer steel wire layer is made up of the galvanized steel wire of galvanized steel wire layer in 12 windings.Strengthening core
By interior galvanized steel wire layer, middle galvanized steel wire layer, external galvanized layer steel wire layer be closely wound contact with good sag characteristic and
Bent toughness, it is safe.
As a kind of improvement of the present utility model, the grade of the galvanized steel wire is one kind in G2A or G2B or G3A.Carry
The high tensile strength of strengthening core, anti-overload ability.
As a kind of improvement of the present utility model, the interior insulation set is linear low density polyethylene resin sheath.So as to
With good resistance to low temperature and bending resistance.
As a kind of improvement of the present utility model, the twisted wire body also includes the external insulation for wrapping up outermost conductive layer
Set, the external insulation sleeve is linear low density polyethylene resin sheath.Low temperature resistant, the corrosion resistant performance of transmission line is improved,
Save electric energy.
The beneficial effects of the utility model are as follows：
High-strength steel core aluminum alloy stranded wire of the present utility model, uses minimum tensile strength to be closed for 315Mpa high intensity aluminium
Golden single line constitutes conductive layer, and grade is a kind of galvanized steel wire composition strengthening core in G2A, G2B or G3A, and in conductive layer and
Linear low density polyethylene resin interior insulation set is provided between strengthening core, the tensile strength of aluminium alloy stranded conductor can be improved, resisted
Overload capacity and fatigue resistance, sag characteristic are good, can adapt to the weather of the serious natural calamity such as sleet and snow ice, improve electricity
The ability of hazard weather is resisted and taken precautions against to net
Brief description of the drawings
Fig. 1 is cross-sectional structure schematic diagram of the present utility model.
Fig. 2 is the enlarged drawing at A in Fig. 1.
Fig. 3 is the structural representation of interior insulation set.
In figure：1st, twisted wire body, 2, external insulation sleeve, 3, conductive layer, 4, strengthening core, 41, interior galvanized steel wire layer, 42, middle plating
Zinc steel wire layer, 43, external galvanized layer steel wire layer, 5, interior insulation set, 51, arc groove.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings：
As shown in Figure 1 and Figure 2, a kind of high-strength steel core aluminum alloy stranded wire, includes the twisted wire body 1 of circular in cross-section, twists
Line body ecto-entad is sequentially provided with 4 conductive layers 3 of coaxial line arrangement, and strengthening core 4 is provided with the center of twisted wire body, strengthens
Core can improve the buckling strength of twisted wire body.Between the conductive layer and strengthening core of innermost layer provided with cross section in a ring in
Insulation sleeve 5, interior insulation is covered with being wrapped on the outside of strengthening core, and interior insulation set is linear low density polyethylene resin sheath, with good
Good low temperature resistant and bending resistance characteristic.The recline side of conductive layer of innermost layer of interior insulation set has been distributed uniformly and circumferentially 12
Individual arc groove 51.Arc groove is spirally extended to the other end of interior insulation set from one end that interior insulation covers.The conduction of innermost layer
Layer is formed by 12 high-strength aluminum alloy single lines are stranded, the arc groove that every high-strength aluminum alloy single line is put with interior insulation point
It Dui Ying not contact, improve center binding force of the conductive layer with respect to strengthening core.The high intensity of each conductive layer of composition from inside to outside
The number of aluminium alloy single line increases by 6 successively on the basis of the conductive layer of innermost layer, makes to have in the conductive layer of twisted wire body
84 high-strength aluminum alloy single lines.The minimum tensile strength of high-strength aluminum alloy single line is 315Mpa.Strengthening core includes interior zinc-plated
Steel wire layer 41, middle galvanized steel wire layer 42 and the external galvanized layer steel wire layer 43 contacted with interior insulation set, wherein interior galvanized steel wire layer is by one
Root galvanized steel wire is constituted, and middle galvanized steel wire layer is made up of the galvanized steel wires of galvanized steel wire layer in 6 windings, external galvanized layer steel wire layer by
The galvanized steel wire composition of galvanized steel wire layer in 12 windings.The cross-sectional area of galvanized steel wire is 100mm2, the level of galvanized steel wire
Zhi Shaowei not be G2A grades, G2B or G3A grades can also be selected.Strengthening core passes through interior galvanized steel wire layer, middle galvanized steel wire layer, external galvanized layer
The contact that is closely wound of steel wire layer has good intensity and bent toughness, safe.Further to improve twisted wire body
Resistance to bearing capacity, resistance to low temperature and resistance to corrosion, extend the service life of twisted wire, lead twisted wire body is outermost
External insulation sleeve 2 of the electric layer outer cladding by cross section in a ring, the material of outer insulation jacket is linear low density polyethylene resin.
Above-described embodiment is a kind of embodiment of the present utility model, for those skilled in the art, is not departing from this
On the premise of utility model, some improvement and supplement can also be made to the utility model, these are improved and supplement also should be regarded as
Protection domain of the present utility model.
Claims (6)
1. a kind of high-strength steel core aluminum alloy stranded wire, includes the twisted wire body (1) of circular in cross-section, it is characterised in that described
Twisted wire body ecto-entad is provided with some conductive layers (3) that coaxial line is arranged, is provided with same with conductive layer at the center of twisted wire body
The strengthening core (4) of axis, the interior insulation set (5) provided with annular between the conductive layer and strengthening core of innermost layer, the interior insulation
The side for covering the conductive layer for the innermost layer that reclines has been distributed uniformly and circumferentially some arc grooves (51), the conductive layer of innermost layer
Constituted by corresponding to some high-strength aluminum alloy single lines contacted respectively with the arc groove that interior insulation is put, composition is from inside to outside
The number of high-strength aluminum alloy single line of conductive layer increase by 6 successively on the basis of the conductive layer of innermost layer, it is described high-strength
Spend tensile strength >=315Mpa of aluminium alloy single line.
2. a kind of high-strength steel core aluminum alloy stranded wire according to claim 1, it is characterised in that the twisted wire body is set altogether
There are 4 layers of conductive layer, the conductive layer of innermost layer is made up of 12 high-strength aluminum alloy single lines.
3. a kind of high-strength steel core aluminum alloy stranded wire according to claim 1, it is characterised in that strengthening core includes interior zinc-plated
Steel wire layer (41), middle galvanized steel wire layer (42) and cover external galvanized layer steel wire contact layer (43) with interior insulation, interior galvanized steel wire layer by
A piece galvanized steel wire composition, middle galvanized steel wire layer is made up of the galvanized steel wire of galvanized steel wire layer in 6 windings, external galvanized layer steel wire layer
The galvanized steel wire of galvanized steel wire layer is constituted in being wound by 12.
4. a kind of high-strength steel core aluminum alloy stranded wire according to claim 3, it is characterised in that the galvanized steel wire etc.
Level is one kind in G2A or G2B or G3A.
5. a kind of high-strength steel core aluminum alloy stranded wire according to claim 1, it is characterised in that the interior insulation set is line
Property ldpe resin sheath.
6. a kind of high-strength steel core aluminum alloy stranded wire according to claim 1, it is characterised in that the twisted wire body is also wrapped
The external insulation sleeve (2) for wrapping up outermost conductive layer is included, the external insulation sleeve is linear low density polyethylene resin sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621352939.5U CN206340357U (en) | 2016-12-09 | 2016-12-09 | High-strength steel core aluminum alloy stranded wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621352939.5U CN206340357U (en) | 2016-12-09 | 2016-12-09 | High-strength steel core aluminum alloy stranded wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206340357U true CN206340357U (en) | 2017-07-18 |
Family
ID=59308759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621352939.5U Active CN206340357U (en) | 2016-12-09 | 2016-12-09 | High-strength steel core aluminum alloy stranded wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206340357U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107872041A (en) * | 2017-12-18 | 2018-04-03 | 国网山东省电力公司龙口市供电公司 | A kind of power circuit damper |
-
2016
- 2016-12-09 CN CN201621352939.5U patent/CN206340357U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107872041A (en) * | 2017-12-18 | 2018-04-03 | 国网山东省电力公司龙口市供电公司 | A kind of power circuit damper |
| CN107872041B (en) * | 2017-12-18 | 2024-05-14 | 国网山东省电力公司龙口市供电公司 | Power line damper |
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