CN204480769U - Strength aluminum alloy conductor aerial cable in a kind of wisdom energy use - Google Patents
Strength aluminum alloy conductor aerial cable in a kind of wisdom energy use Download PDFInfo
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- CN204480769U CN204480769U CN201520137858.2U CN201520137858U CN204480769U CN 204480769 U CN204480769 U CN 204480769U CN 201520137858 U CN201520137858 U CN 201520137858U CN 204480769 U CN204480769 U CN 204480769U
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Abstract
The utility model discloses strength aluminum alloy conductor aerial cable in wisdom energy use, comprise three cores and the phase-splitting convex ridge being arranged at core outer surface; Described three core outsides arrange a phase-splitting convex ridge, two phase-splitting convex ridges and three phase-splitting convex ridges respectively.The utility model adopts convex ridge can more simply distinguish each phase line and ground wire, convex ridge mark scuff, durable in use, can not cannot distinguish phase sequence because the lettering problem of coming off causes, and improves safety in utilization.
Description
Technical field
The utility model relates to strength aluminum alloy conductor aerial cable in a kind of wisdom energy use.
Background technology
The aerial insulated cable of extensive use in city net and rural power grids circuit at present, usually adopt the aerial insulated cable pressing structure hard-drawn aluminium wire core conductor, the tensile strength of this duralumin single line is only 160 ~ 175N/mm
2percentage elongation is about 1.5%, this cable exposes many outstanding problems in actual use: tensile strength is low, Heavy Weight, erection time span little (general erection span be only 50 ~ 60m), easy generation sag, fatigue-resistance characteristics is relatively poor, and operation troubles rate is high, and when temperature is more than 70 DEG C, conductor intensity sharply declines, and reduces the fail safe that erecting cable uses.Chinese patent ZL95250017.5 discloses " a kind of overhead cable ", and it adopts steel reinforced aluminium conductor conductor wire core, screen and insulating barrier.Although conductor wire core adopts sub-thread or steel wire strand to add tensile strength, tensile strength is still not high, and line span only rises to 60 ~ 80m.In addition, owing to have employed steel wire in conductor wire core, produce magnetic hysteresis loss and eddy current loss, lower than the ampacity of common aerial insulated cable, line loss is larger.In addition owing to adding steel wire, cause wire weight significantly to increase, steel tower needs larger bearing capacity, and the height of steel tower has to improve simultaneously, needs larger steel tower ground floor space and burial depth, causes quantities and project cost multiplication.Again, this cable conductor still uses hard-drawn aluminium wire, and due to it, to stretch rate relatively little, and thus its fatigue-resistance characteristics is relatively poor.
Utility model content
The purpose of this utility model is the defect and the deficiency that overcome aforementioned existing aerial insulated cable, provide a kind of lightweight, pulling force large, conduct electricity very well, ampacity is large, transmission capacity is large, without strength aluminum alloy conductor aerial cable in the good a kind of wisdom energy use of electromagnetic consumable, fatigue performance.
Realizing the technical solution of the utility model is strength aluminum alloy conductor aerial cable during a kind of wisdom energy is used, and comprises three cores and the phase-splitting convex ridge being arranged at core outer surface; Described three core outsides arrange a phase-splitting convex ridge, two phase-splitting convex ridges and three phase-splitting convex ridges respectively.
Described core is followed successively by middle strength aluminum alloy conductor and insulating barrier from the inside to the outside.
Described core is followed successively by middle strength aluminum alloy conductor, insulating barrier and semiconductive internal shield from the inside to the outside.
Described core is followed successively by middle strength aluminum alloy conductor, insulating barrier, semiconductive internal shield and insulation screen from the inside to the outside.
Described middle strength aluminum alloy conductor is by circular or formed by trapezoidal or S shape or Z-shaped or herringbone or aforementioned shapes combination single line concentric stranding.
In conductance >=58.5%IACS, the tensile strength >=240MPa of strength aluminum alloy conductor single line, percentage elongation is greater than 3.0%.
The electric pressure of cable of the present utility model is 0 ~ 35kV.When rated voltage is 1kV and following, its core structure is middle strength aluminum alloy conductor and insulating barrier; When rated voltage is 3kV ~ 35kV, its structure is middle strength aluminum alloy conductor, semiconductive inner shield and insulating barrier or middle strength aluminum alloy conductor, semiconductive inner shield, insulating barrier and insulation screen;
Have employed technique scheme, the utility model has following beneficial effect: (1) the utility model adopts convex ridge can more simply distinguish each phase line and ground wire, convex ridge mark scuff, durable in use, can not cannot distinguish phase sequence because the lettering problem of coming off causes, improve safety in utilization.
(2) compare with steel-cored aluminum strand core overhead insulated cable with isodiametric aluminium core overhead insulated cable, cable tension of the present utility model is large, lightweight, and sag characteristic is good, effectively can reduce tower bar height, reduces line construction investment.
(3) middle strength aluminium alloy conductor break percentage elongation of the present utility model is long, and be 2 times of conventional duralumin conductor, thus it has excellent overload capacity and fatigue properties, and resistance to vibrated performance will be got well, and improves circuit safety in utilization.
(4) to have good hot properties good for middle strength aluminium alloy conductor of the present utility model.The intensity almost free of losses when 90 DEG C of continuous services, improves the fail safe of circuit long-time running.
(5), under same diameter, the conductive cross-sectional area of middle strength aluminum alloy conductor of the present utility model will far above steel reinforced aluminium conductor core conductor, so its 20 DEG C of D.C. resistances will lower than steel reinforced aluminium conductor core conductor.Simultaneously, strength aluminum alloy conductor can not produce magnetic hysteresis loss and eddy current loss, and old friend's leakage resistance is relatively low, therefore energy loss reduces, and particularly during large capacity transmission, consumption reduction is obvious.
(6) structure of the present utility model has excellent longitudinal water-blocking.
(7) adopt the cable of this structure, compared with common aerial insulated cable, under same resistance, the outside diameter of cable 5% ~ 10% can be reduced, thus save cable shield material and insulating material, reduce production cost.
Accompanying drawing explanation
In order to make content of the present utility model more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is the structural representation of this use new embodiment 1.
Fig. 2 is the structural representation of this use new embodiment 2.
Attached number in the figure is:
Core 1, middle strength aluminium alloy conductor 11, insulating barrier 12, semiconductive internal shield 13, insulation screen 14, phase-splitting convex ridge 2.
Embodiment
(embodiment 1)
See Fig. 1, strength aluminum alloy conductor aerial cable in the wisdom energy use of a kind of three cores of the present embodiment, comprises three cores 1.Every root core 1 comprises by strength aluminum alloy conductor 11 in ladder-shaped concentric stranding and insulating barrier 12.The outer surface of every root core 1 is provided with phase-splitting convex ridge 2.Single line core is a convex ridge, and single line core is two convex ridges, also has single line core to be three convex ridges.In the present embodiment, middle strength aluminum alloy conductor 11 is made up of 1 ~ 91 middle strength aluminum alloy molded line, and the cross section of single molded line is 1 ~ 30mm
2, the tensile strength>=240MPa of middle strength aluminum alloy molded line, percentage elongation>=3.0%, conductance>=58.5%IACS, during middle strength aluminium alloy conductor 20 DEG C, conductor DC resistance is equal to the resistance of same specification aluminium conductor.
(embodiment 2)
See Fig. 2, the core of the present embodiment is different from embodiment 1, core 1 is followed successively by middle strength aluminum alloy conductor 11, insulating barrier 12, semiconductive internal shield 13, the insulation screen 14 of ladder-shaped concentric stranding from the inside to the outside, and insulating barrier adopts true qualities crosslinked polyethylene or the weather-proof crosslinked polyethylene of black.
Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (5)
1. the wisdom energy with in a strength aluminum alloy conductor aerial cable, it is characterized in that: comprise three cores (1) and be arranged at the phase-splitting convex ridge (2) of core (1) outer surface; Described three core (1) outsides arrange a phase-splitting convex ridge (2), two phase-splitting convex ridges (2) and three phase-splitting convex ridges (2) respectively.
2. strength aluminum alloy conductor aerial cable in a kind of wisdom energy use according to claim 1, is characterized in that: described core (1) is followed successively by middle strength aluminum alloy conductor (11) and insulating barrier (12) from the inside to the outside.
3. strength aluminum alloy conductor aerial cable in a kind of wisdom energy use according to claim 1, is characterized in that: described core (1) is followed successively by middle strength aluminum alloy conductor (11), insulating barrier (12) and semiconductive internal shield (13) from the inside to the outside.
4. strength aluminum alloy conductor aerial cable in a kind of wisdom energy use according to claim 1, is characterized in that: described core (1) is followed successively by middle strength aluminum alloy conductor (11), insulating barrier (12), semiconductive internal shield (13) and insulation screen (14) from the inside to the outside.
5. according to a kind of wisdom energy one of claim 2 to 4 Suo Shu with in strength aluminum alloy conductor aerial cable, it is characterized in that: described middle strength aluminum alloy conductor (11) is by circular or formed by trapezoidal or S shape or Z-shaped or herringbone or aforementioned shapes combination single line concentric stranding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520137858.2U CN204480769U (en) | 2015-03-11 | 2015-03-11 | Strength aluminum alloy conductor aerial cable in a kind of wisdom energy use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520137858.2U CN204480769U (en) | 2015-03-11 | 2015-03-11 | Strength aluminum alloy conductor aerial cable in a kind of wisdom energy use |
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| Publication Number | Publication Date |
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| CN204480769U true CN204480769U (en) | 2015-07-15 |
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| CN201520137858.2U Active CN204480769U (en) | 2015-03-11 | 2015-03-11 | Strength aluminum alloy conductor aerial cable in a kind of wisdom energy use |
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2015
- 2015-03-11 CN CN201520137858.2U patent/CN204480769U/en active Active
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