CN203134399U - High-strength steel core high-conductivity heat-resisting aluminum alloy twisted wire - Google Patents

High-strength steel core high-conductivity heat-resisting aluminum alloy twisted wire Download PDF

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Publication number
CN203134399U
CN203134399U CN 201320079489 CN201320079489U CN203134399U CN 203134399 U CN203134399 U CN 203134399U CN 201320079489 CN201320079489 CN 201320079489 CN 201320079489 U CN201320079489 U CN 201320079489U CN 203134399 U CN203134399 U CN 203134399U
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China
Prior art keywords
steel core
strength steel
twisted wire
conductivity heat
aluminum alloy
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Expired - Fee Related
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CN 201320079489
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Chinese (zh)
Inventor
江正云
蒋彭春
张培基
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YUNNAN ZHENGXIAO CABLE CO Ltd
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YUNNAN ZHENGXIAO CABLE CO Ltd
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Publication of CN203134399U publication Critical patent/CN203134399U/en
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Abstract

The utility model belongs to the technical field of cables and specifically discloses a high-strength steel core high-conductivity heat-resisting aluminum alloy twisted wire. The high-strength steel core high-conductivity heat-resisting aluminum alloy twisted wire includes a central high-strength zinc-coated steel core group acting as a reinforcing rib and a high-conductivity heat-resisting aluminum zirconium alloy wire group surrounding and covering on the periphery of the high-strength zinc-coated steel core group. By adopting high-conductivity heat-resisting aluminum zirconium alloy wires for substituting common rigid aluminum wires in a traditional steel core aluminum twisted wire and adopting high-strength steel cores for substituting common-strength steel cores, the high-strength steel core high-conductivity heat-resisting aluminum alloy twisted wire is formed, so that a long-term operation temperature of the high-strength steel core high-conductivity heat-resisting aluminum alloy twisted wire is increased to 150 DEG C while the conductivity reaches to 60 percents IACS. And energy loss of the high-strength steel core high-conductivity heat-resisting aluminum alloy twisted wire in normal power transmission is basically approximate to energy loss of the traditional steel core aluminum twisted wire. However, the carrying capacity is nearly doubled. The high-strength steel core high-conductivity heat-resisting aluminum alloy twisted wire is widely applied to power transmission circuit modification work for capacity increase. Prior power transmission verandas are utilized and poles and towers are not needed to transform, and the capacity of a circuit can be increased by more than 100 percents only by changing leads. And the high-strength steel core high-conductivity heat-resisting aluminum alloy twisted wire is long in service lifetime. By using the high-strength steel core high-conductivity heat-resisting aluminum alloy twisted wire, construction investment and construction time can be reduced and good economic benefits and social benefits can be created.

Description

High strength steel core high-conductive heat-resistant aluminium alloy stranded conductor
Technical field
The utility model belongs to technical field of cables, is specifically related to a kind of high strength steel core high-conductive heat-resistant aluminium alloy stranded conductor.
Background technology
In superhigh pressure and ultra high voltage overhead transmission line field, all be the steel reinforced aluminium conductor that adopts hard-drawn aluminium wire to make generally, its shortcoming is poor heat resistance, general operating temperature is only at 70-90 ℃.
Based on this, be necessary to design a novel heat-resisting twisted wire and satisfy present demand for this type of situation.
Summary of the invention
At above-mentioned weak point of the prior art, the utility model aims to provide a kind of high strength steel core high-conductive heat-resistant aluminium alloy stranded conductor, its long-time running temperature can reach 150 ℃, improved ampacity, and energy consumption and line loss and conventional steel core aluminum stranded wire are close substantially when normally transmitting electricity, and conductance reaches 60%IACS.
To achieve these goals, the technical solution of the utility model: the high strength steel core group as strengthening core in the middle of a kind of high strength steel core high-conductive heat-resistant aluminium alloy stranded conductor, described twisted wire comprise reaches around the high-conductive heat-resistant aluminium zircaloy line group that is coated on this high strength steel core group periphery.
This twisted wire adopts high-conductive heat-resistant aluminium zircaloy line to replace common hard-drawn aluminium wire on the basis of conventional steel core aluminum stranded wire, replace the regular tenacity steel core to make high strength steel core high-conductive heat-resistant aluminium alloy stranded conductor with the high strength steel core simultaneously, make the long-time running temperature of this patent product bring up to 150 ℃, and conductance reach 60%IACS; And energy consumption and line loss and traditional steel reinforced aluminium conductor are close substantially when normally transmitting electricity, improved 100% ampacity, be widely used on high pressure and the superhigh pressure overhead transmission line, as big capacity lead, big electric current ground wire, cross over the heavy current busbar that lead and transformer station use greatly and use; Increase (expansion) at transmission line holds improvement project, utilizes existing transmission of electricity to walk exterior feature, need not transform shaft tower, only restringing can realize that the circuit increase-volume is more than 100%, and long service life can be saved construction investment and engineering time, and favorable economic benefit and social benefit are arranged.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is sectional view of the present utility model.
Embodiment
Further describe the utility model below in conjunction with specific embodiment and accompanying drawing.
High strength steel core group 1 as strengthening core in the middle of a kind of high strength steel core high-conductive heat-resistant aluminium alloy stranded conductor as shown in Figure 1, described twisted wire comprise reaches around the high-conductive heat-resistant aluminium zircaloy line group 2,3,4 that is coated on this high strength steel core group 1 periphery.
Show after deliberation, in aluminium, add a spot of zirconium (Zr) and make aluminium alloy, can improve its thermal endurance and the influence of conductance is can be controlled in minimum zone.Zirconium (Zr) element, the recrystallization temperature that can improve aluminium is little to reducing the conductance influence again.The utility model improves at existing steel reinforced aluminium conductor based on this principle, by adopting high-conductive heat-resistance aluminium alloy wire to replace common hard-drawn aluminium wire, replace the regular tenacity steel core to make high strength steel core high-conductive heat-resistant aluminium alloy stranded conductor with the high strength steel core simultaneously, make the long-time running temperature of this patent product bring up to 150 ℃, and conductance reach 60%IACS.(IACS represents International Annealed Copper Standard (seeing IEC60028)).
Test shows, the long-time running temperature of this high strength steel core high-conductive heat-resistant aluminium alloy stranded conductor can reach 150 ℃, energy consumption is close substantially with the conventional steel core aluminum stranded wire with line loss during normal the transmission of electricity, but can improve 100% ampacity, and increase (expansion) that be widely used in transmission line holds improvement project, utilize existing transmission of electricity to walk exterior feature, need not transform shaft tower, only restringing can be realized the circuit increase-volume more than 100%, and long service life, can save construction investment and engineering time, favorable economic benefit and social benefit are arranged.
Its test data is as follows:
Performance index Unit The high-conductive heat-resistant aluminium alloy Hard-drawn aluminium wire
Continuous operating temperature (40 years) 150 70~90
Tensile strength (Ф 2~5 ㎜) MPa 160~169 160~180
Percentage elongation % 1.5~2.0 ——
Resistivity in the time of 20 ℃ nΩ.m 28.735 28.264
Conductance (being equivalent to IACS) % 60.0 61.0
Particularly, as Fig. 1, a high strength steel core in the middle of described high strength steel core group 1 comprises reaches the six roots of sensation high strength steel core around this high strength steel core, and described six roots of sensation high strength steel core constitutes a cylindrical structural.And described high-conductive heat-resistant aluminium zircaloy line group 2,3,4 comprises three layers, wherein, the number of share of stock of every layer high-conductive heat-resistant aluminium zircaloy line increases progressively with 6 strands number from inside to outside, for example, in the described high-conductive heat-resistant aluminium zircaloy line group 2,3,4 from inside to outside the number of share of stock of every layer high-conductive heat-resistant aluminium zircaloy line be 12,18,24.For the setting of high strength steel core and high-conductive heat-resistant aluminium zircaloy line, can require decide according to concrete load, this legend is under the situation that meets concrete load requirement, and the Jiang Gexian cylindrical shape of arranging is to meet the shape facility requirement of present most of cables.
More than technical scheme that the utility model embodiment is provided be described in detail, used specific case herein principle and the execution mode of the utility model embodiment are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as restriction of the present utility model.

Claims (4)

1. high strength steel core high-conductive heat-resistant aluminium alloy stranded conductor is characterized in that: in the middle of described twisted wire comprises as the high strength steel core group (1) of strengthening core and around being coated on the peripheral high-conductive heat-resistant aluminium zircaloy line group (2,3,4) of this high strength steel core group (1).
2. high strength steel core high-conductive heat-resistant aluminium alloy stranded conductor according to claim 1, it is characterized in that: a high strength steel core in the middle of described high strength steel core group (1) comprises reaches the six roots of sensation high strength steel core around this high strength steel core, and described six roots of sensation high strength steel core constitutes a cylindrical structural.
3. high strength steel core high-conductive heat-resistant aluminium alloy stranded conductor according to claim 1, it is characterized in that: described high-conductive heat-resistant aluminium zircaloy line group (2,3,4) comprises three layers, wherein, the number of share of stock of every layer high-conductive heat-resistant aluminium zircaloy line increases progressively with 6 strands number from inside to outside.
4. high strength steel core high-conductive heat-resistant aluminium alloy stranded conductor according to claim 3 is characterized in that: in the described high-conductive heat-resistant aluminium zircaloy line group (2,3,4) from inside to outside the number of share of stock of every layer high-conductive heat-resistant aluminium zircaloy line be 12,18,24.
CN 201320079489 2013-02-21 2013-02-21 High-strength steel core high-conductivity heat-resisting aluminum alloy twisted wire Expired - Fee Related CN203134399U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320079489 CN203134399U (en) 2013-02-21 2013-02-21 High-strength steel core high-conductivity heat-resisting aluminum alloy twisted wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320079489 CN203134399U (en) 2013-02-21 2013-02-21 High-strength steel core high-conductivity heat-resisting aluminum alloy twisted wire

Publications (1)

Publication Number Publication Date
CN203134399U true CN203134399U (en) 2013-08-14

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130814

Termination date: 20190221

CF01 Termination of patent right due to non-payment of annual fee