CN208834756U - Height leads aluminium alloy core height and leads aluminum stranded conductor - Google Patents

Abstract

The utility model relates to a kind of conducting wires, more particularly, to a kind of aerial condutor of use in economizer circuit and super-pressure, UHV Transmission Engineering.A kind of high aluminium alloy core height of leading leads aluminum stranded conductor, it include the core layer of multilayer concentric arrangement, every layer line sandwich layer includes more cores, core uses the aluminium alloy wire or aluminium alloy single line of high conductivity, core radical is incremented by core layer from the inside to the outside, and core layer includes internal layer core layer and outer layer core layer, and wherein internal layer core layer refers to 1-4 layer line sandwich layer from the inside to the outside, outer layer core layer refers to the 5-6 layer line sandwich layer of arranged concentric, and the conductivity of internal layer core layer is lower than the conductivity of outer layer core layer.The utility model provide loss it is small, transmission capacity is big, and corrosion-resistant, height with long service life leads aluminium alloy core height and leads aluminum stranded conductor；Solves aerial condutor loss existing in the prior art greatly, transmission capacity is small, and security risk is high, the technical problem of antifatigue effect difference.

Description

Height leads aluminium alloy core height and leads aluminum stranded conductor

Technical field

The utility model relates to a kind of conducting wires, defeated in economizer circuit and super-pressure, extra-high voltage more particularly, to a kind of use Aerial condutor on electrical engineering.

Background technique

Country advocates energy-saving and emission-reduction energetically.For power industry, the transmission losses in electrical energy transportation link how is reduced, It always is the hot spot that we pay high attention to.Leader cable usually on some super-pressure, UHV Transmission Engineering is using aerial Wire scheme, however due to the super-pressure in its use, extra-high voltage special circumstances, however since conducting wire itself exists after aerial Sag characteristic factor, be easy therefore there is security risk, that overload capacity is low, antifatigue special efficacy is poor, service life is low etc. is scarce The problem of falling into.Novel energy-conserving conducting wire is gradually promoted and applied in recent years as one of most effective energy-saving tool of transmission line of electricity.

Summary of the invention

The utility model provide loss it is small, transmission capacity is big, and corrosion-resistant, height with long service life is led aluminium alloy core height and led Aluminum stranded conductor；Solves aerial condutor loss existing in the prior art greatly, transmission capacity is small, and security risk is high, antifatigue effect The technical problem of difference.

The above-mentioned technical problem of the utility model is solved by following technical proposals: a kind of high aluminium alloy core height of leading is led Aluminum stranded conductor includes the core layer of multilayer concentric arrangement, and every layer line sandwich layer includes more cores, and core uses the aluminium of high conductivity Alloy wire or aluminium alloy single line, core radical is incremented by core layer from the inside to the outside, and core layer includes internal layer core layer and outer layer core Layer, wherein internal layer core layer refers to 1-4 layer line sandwich layer from the inside to the outside, and outer layer core layer refers to the 5-6 layer line of arranged concentric Sandwich layer, the conductivity of internal layer core layer are lower than the conductivity of outer layer core layer.Pass through the material of two kinds of different models and conductivity Constituting core ensure that high conductivity while guaranteeing tensile strength, reduces loss, improves transmission capacity.

Preferably, the core of the internal layer core layer uses conductivity for the high-conductivity aluminum alloy list of 55%IACS Line is twisted.

More preferably, the aluminium alloy wire of the high conductivity uses the aluminium alloy single line of model LHA55, and height is led The tensile strength of electric rate aluminium alloy wire: before strand >=315MPa, after strand >=299MPa.

Preferably, the core of the outer layer core layer uses conductivity for the high conductivity aluminium single line of 62.5%IACS It is twisted.

Preferably, the aluminum steel of the high conductivity uses the aluminium single line of model L3, high conductivity aluminium single line resists Tensile strength: before strand >=160MPa, after strand >=152MPa.

Preferably, every layer line core of the core layer increases by 6 for every layer from the inside to the outside, core layer is twisted by core It forms.

Preferably, the lay configuration is formed using the concentric process of frame type stranding machine.

Therefore, the height of the utility model, which leads aluminium alloy core height and leads aluminum stranded conductor, has following advantages:

It can be under the premise of meeting tensile strength as defined in conducting wire, for the first time by high-conductivity aluminum alloy line and high conductivity aluminum steel It is twisted, loss is greatly reduced, the transmission capacity of route is improved, improves conducting wire safety in utilization, improves wire overloading ability, It is antifatigue special to improve, and improves service life.With better sag characteristic, line construction investment can be reduced, improves route peace Full reliability of operation；The steel tower weighted design of stringing also can reduce.

Detailed description of the invention

Fig. 1 is that the height of the utility model leads the schematic diagram that aluminium alloy core height leads aluminum stranded conductor.

Specific embodiment

Below with reference to the embodiments and with reference to the accompanying drawing the technical solution to utility model is described in further detail.

Embodiment:

As shown in Figure 1, a kind of high aluminium alloy core height of leading leads aluminum stranded conductor, use 54 3.63 conductivities of φ for 62.5%IACS High conductivity aluminium single line and 37 3.63 conductivities of φ be 55%IACS high-conductivity aluminum alloy single line be twisted, conducting wire Whole cross-sectional distribution structure is adopted as the distributed architecture of multilayer single line concentric stranding from inside to outside, and core layer includes internal layer core Layer and outer layer core layer, wherein internal layer core layer refers to 1-4 layer line sandwich layer from the inside to the outside, and outer layer core layer refers to arranged concentric 5-6 layer line sandwich layer.Internal layer core layer is twisted by more high-conductivity aluminum alloy single lines, and outer layer core layer uses more High conductivity aluminium single line concentric stranding is formed in aluminium alloy core.The radical of internal layer core layer every layer line core from the inside to the outside is respectively 1,6,12,18, every layer line core radical is respectively 24,30 to outer layer core layer from the inside to the outside.It is adopted in lay configuration It is adopted as the twisted composition of the single line radical being successively incremented by by setting quantity from inside to outside with single line radical, that is, is located at the single line of outer layer Radical is more than the single line radical for being stranded in internal layer, wherein being followed successively by the first layer conductor from innermost layer to outermost wire sandwich layer Twisted wire layer 10, the second layer conductor twisted wire layer 20, third layer conductor twisted wire layer 30, the 4th layer conductor twisted wire layer 40, layer 5 conducting wire Twisted wire layer 50 and layer 6 conducting wire twisted wire layer 60；High-conductivity aluminum alloy core is closed using the high conductivity aluminium of model LHA55 Golden single line corresponds respectively to 10,20,30,40 4 twisted wire layers；The high conductivity aluminum steel is highly conductive using model L3's Rate aluminium single line corresponds respectively to 50 and 60 two twisted wire layers.Compare the common aerial condutor of same outer diameter, the height of the utility model It leads aluminium alloy core height and leads aluminum stranded conductor and compare again with bigger drawing, i.e., the ratio between total pull-off force and its Unit Weight have reached 7.99, and The drawing of steel-cored aluminium strand is again than there was only 6.53.20 DEG C of D.C. resistances of common aerial condutor are 0.0321 Ω/km, and height leads aluminium conjunction Golden core height leads aluminum stranded conductor dc resistivity maximum and there was only 0.03147 Ω/km.Height leads aluminium alloy core height and leads aluminum stranded conductor without steel simultaneously Core does not generate magnetic hysteresis loss and eddy current loss, therefore consumption reduction is obvious when energy loss reduction, especially large capacity transmission.In route Construction in terms of, aluminium alloy core height is led using height and leads aluminum stranded conductor, because Unit Weight is lower than common aerial condutor when same outer diameter, The steel tower weighted design of stringing also can reduce.

Claims (7)

1. a kind of high aluminium alloy core height of leading leads aluminum stranded conductor, it is characterised in that: include the core layer of multilayer concentric arrangement, every layer line Sandwich layer includes more cores, and core uses the aluminium alloy wire or aluminium alloy single line of high conductivity, core layer core root from the inside to the outside Number is incremented by, and core layer includes internal layer core layer and outer layer core layer, and wherein internal layer core layer refers to 1-4 layer line core from the inside to the outside Layer, outer layer core layer refer to the 5-6 layer line sandwich layer of arranged concentric, conductivity the leading lower than outer layer core layer of internal layer core layer Electric rate.

2. height according to claim 1 leads aluminium alloy core height and leads aluminum stranded conductor, it is characterised in that: the internal layer core layer Core uses conductivity to be twisted for the high-conductivity aluminum alloy single line of 55%IACS.

3. height according to claim 2 leads aluminium alloy core height and leads aluminum stranded conductor, it is characterised in that: the aluminium of the high conductivity Alloy wire uses the aluminium alloy single line of model LHA55, the tensile strength of high-conductivity aluminum alloy line: before strand >=315MPa, and it twists Afterwards >=299MPa.

4. height according to claim 1 leads aluminium alloy core height and leads aluminum stranded conductor, it is characterised in that: the outer layer core layer Core uses conductivity to be twisted for the high conductivity aluminium single line of 62.5%IACS.

5. height according to claim 4 leads aluminium alloy core height and leads aluminum stranded conductor, it is characterised in that: the aluminium of the high conductivity Line uses the aluminium single line of model L3, the tensile strength of high conductivity aluminium single line: before strand >=160MPa, after strand >=152MPa.

6. leading aluminium alloy core height to height described in 5 any one according to claim 1 leads aluminum stranded conductor, it is characterised in that: described Every layer line core of core layer increases by 6 for every layer from the inside to the outside, and core layer is twisted by core.

7. height according to claim 6 leads aluminium alloy core height and leads aluminum stranded conductor, it is characterised in that: the lay configuration uses The concentric process of frame type stranding machine forms.