CN105092380A - Device for testing comprehensive performance of round wire concentric lay overhead electrical stranded conductor - Google Patents

Device for testing comprehensive performance of round wire concentric lay overhead electrical stranded conductor Download PDF

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Publication number
CN105092380A
CN105092380A CN201510564361.3A CN201510564361A CN105092380A CN 105092380 A CN105092380 A CN 105092380A CN 201510564361 A CN201510564361 A CN 201510564361A CN 105092380 A CN105092380 A CN 105092380A
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CN
China
Prior art keywords
crossbeam
jaw joint
bridge
conductor
jaw
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510564361.3A
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Chinese (zh)
Inventor
缪春辉
王若民
陈国宏
张海
汤泉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Anhui Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Anhui Electric Power Co Ltd
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Publication date
Application filed by State Grid Corp of China SGCC, Electric Power Research Institute of State Grid Anhui Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201510564361.3A priority Critical patent/CN105092380A/en
Publication of CN105092380A publication Critical patent/CN105092380A/en
Pending legal-status Critical Current

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Abstract

A device for testing comprehensive performance of a round wire concentric lay overhead electrical stranded conductor comprises a horizontal tension tester and a conductor direct-current resistance test device, wherein the horizontal tension tester comprises a main machine, a truss frame, a crossbeam and a jaw joint; guide rails are arranged on one side of the truss frame; the crossbeam is fixed to the truss frame and perpendicular to the guide rails; the jaw joint comprises a crossbeam jaw joint and a near-end jaw joint; the crossbeam jaw joint is fixed to the middle part of the crossbeam; the near-end jaw joint is fixedly connected to a piston of the main machine; the conductor direct-current resistance test device comprises a bridge main machine and two bridge testing arms; conductor clips are arranged at one ends of the bridge testing arms, and U-shaped sliding blocks are arranged at the other ends of the bridge testing arms; electrodes for being connected to the bridge main machine are arranged in the conductor clips; the two bridge testing arms are arranged on the truss frame through slide fit between the U-shaped sliding blocks and the guide rails. According to the method, the measurement of direct current conductivity and mechanical performance of the overhead conductor can be realized through once sampling, so that not only are wires saved, but also a testing result can be more accurate.

Description

A kind of circle line concentric gallows empty conductor comprehensive performance test device
Technical field
The invention belongs to round line concentric gallows empty conductor all-round property testing technical field, be specifically related to the mechanical property of circle line concentric gallows empty conductor and the inspect on colligated-function of DC resistivity.
Background technology
Circle line concentric gallows empty conductor lays owing to making somebody a mere figurehead, and therefore, if the specified stretching resistance of aerial condutor is defective, easily causes line-outage contingency.In addition, the DC resistivity exceeding standard can cause temperature rising when running, line loss strengthens.So mechanical property and DC resistivity are circle line concentric gallows empty conductor two of paramount importance indexs.Traditional detection method adopts the mode tested respectively to detect, DC resistivity test needs the wire intercepting about 1.5m or length, put because aerial condutor is all into take inventory, the wire intercepted is arcuation, careful aligning is needed before test, for the aerial condutor that sectional area is larger, when not damage wires, manual aligning wire is very difficult.In addition, stress-strain curve test needs the wire intercepting diameter of wire 400 times (and being not less than 10m) in addition.Two tests carry out not only that efficiency is lower respectively, and precision is poor, and waste wire.
Summary of the invention
In order to solve the defect that above-mentioned aerial condutor Performance Detection exists, the invention provides a kind of circle line concentric gallows empty conductor comprehensive performance test device.
A kind of circle line concentric gallows empty conductor comprehensive performance test device, comprises horizontal tensile testing machine and conductor DC resistance test unit;
Described horizontal tensile testing machine comprises main frame 1, truss 2, crossbeam 3 and jaw joint; The side of truss 2 is provided with guide rail 5; Crossbeam 3 is fixed on truss 2, and perpendicular to guide rail 5; Jaw joint comprises crossbeam jaw joint and near-end jaw joint 4; Crossbeam jaw joint is fixed in the middle part of crossbeam 3; Near-end jaw joint 4 is fixedly connected the piston of main frame 1.
Conductor DC resistance test unit comprises electric bridge main frame 8 and two bridge test arms 6.
One end of bridge test arm 6 is provided with wire clamp, and the other end is provided with U-shaped slide block; Two electrodes 61 connecting electric bridge main frame 8 are installed in wire clamp; Two bridge test arms 6 to be located on truss 2 in cantilever-shaped by being slidably matched of U-shaped slide block and guide rail 5.
Preferred bridge test arm 6 structure is as follows:
Wire clamp on bridge test arm 6 is hinge-type, is covered being combined into by clamp and folder; Be respectively equipped with two electrodes 61 in described clamp and folder lid, each electrode 61 is provided with jaw.
Described jaw is V-arrangement jaw.
Described electrode 61 is gold-plated electrode.
Advantageous Effects of the present invention embodies in the following areas:
1. primary sample of the present invention, DC conductivity and the mechanical property that can complete aerial condutor are measured, and while saving wire rod, assay is more accurate;
2. direct-flow double bridge is for measuring the resistivity of electric aerial condutor, meets GB/T3048.4-2007 " electric wire electrical performance test method the 4th part: conductor DC resistance is tested " requirement.Be suitable for all twisted wires that GB/T1179-2008 comprises.Horizontal tensile testing machine, for the mechanical property of measurement bay hollow wire, meets GB/T1179-2008 " circle line concentric gallows empty conductor " requirement, insulate between conducting wire clamp and the joint of horizontal tensile testing machine.Horizontal tensile testing machine far-end crossbeam is fixed on truss by bolt, by regulating far-end crossbeam position, can adapt to the twisted wire of different length.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is bridge test arm configuration schematic diagram.
Sequence number in upper figure: horizontal tensile testing machine main frame 1, horizontal tensile testing machine main frame truss 2, horizontal tensile testing machine far-end crossbeam 3, horizontal tensile testing machine near-end jaw joint 4, guide rail 5, bridge test arm 6, gold-plated electrode 61, hinge 62, wire 7, electric bridge main frame 8, gold-plated electrode adjusting knob 9.
Embodiment
Below in conjunction with accompanying drawing, by embodiment, the present invention is further described.
See Fig. 1, a kind of circle line concentric gallows empty conductor comprehensive performance test device, comprises horizontal tensile testing machine and conductor DC resistance test unit.
Horizontal tensile testing machine comprises main frame 1, truss 2, crossbeam 3 and jaw joint; The side of truss 2 is provided with guide rail 5; Crossbeam 3 is fixed on truss 2, and perpendicular to guide rail 5; Jaw joint comprises crossbeam jaw joint and near-end jaw joint 4, and crossbeam jaw joint is fixed in the middle part of crossbeam 3, and near-end jaw joint 4 is fixedly connected the piston of main frame 1.
Conductor DC resistance test unit comprises electric bridge main frame 8 and two bridge test arms 6.
Improve and be that one end of bridge test arm 6 is provided with wire clamp, the other end is provided with U-shaped slide block; The electrode 61 connecting electric bridge main frame 8 is installed in wire clamp; Two bridge test arms 6 to be located on truss 2 in cantilever-shaped by being slidably matched of U-shaped slide block and guide rail 5.
See Fig. 2, the wire clamp on bridge test arm 6 is hinge-type, is connected to form by hinge 62 by clamp and folder lid; Be separately installed with two electrodes 61 in clamp and folder lid, each electrode 61 offers V-arrangement jaw, and electrode 61 is gold-plated electrode.
Specifically describe the mechanical property of the present invention to wire and the measurement of DC resistivity below:
During use, first intercept length-specific wire 7 according to demand, with holder wire 7 two ends, fixture is separately fixed in the jaw joint of horizontal tensile testing machine near-end and far-end.Recycling horizontal tensile testing machine pretension circle line concentric gallows empty conductor, initial load is the specified pull-off force of 2%RTS(), unloaded loads after maintenance certain hour, wire completes aligning.
Two of electric bridge test arm are moved to target location, wire clamp is opened, makes wire pass center pit, gold-plated electrode is screwed by adjusting knob after closed, itself and wire 7 intimate surface are fitted, forms Ohmic contact, now can complete the DC resistivity test of twisted wire.
DC resistivity removes the test arm of electric bridge after having tested, install strainmeter, can measure wire mechanical property to wire.

Claims (4)

1. justify a line concentric gallows empty conductor comprehensive performance test device, comprise horizontal tensile testing machine and conductor DC resistance test unit;
Described horizontal tensile testing machine comprises main frame (1), truss (2), crossbeam (3) and jaw joint, and the side of described truss (2) is provided with guide rail (5), and described crossbeam (3) is fixed on truss (2), and perpendicular to guide rail (5); Described jaw joint comprises crossbeam jaw joint and near-end jaw joint (4), and described crossbeam jaw joint is fixed on crossbeam (3) middle part, and described near-end jaw joint (4) is fixedly connected the piston of main frame (1);
Described conductor DC resistance test unit comprises electric bridge main frame (8) and two bridge test arms (6);
It is characterized in that:
One end of described bridge test arm (6) is provided with wire clamp, and the other end is provided with U-shaped slide block; The electrode (61) connecting electric bridge main frame (8) is provided with in described wire clamp; Described two bridge test arms (6) to be located on truss (2) in cantilever-shaped by being slidably matched of U-shaped slide block and guide rail (5).
2. one circle line concentric gallows empty conductor comprehensive performance test device according to claim 1, is characterized in that: the wire clamp on bridge test arm (6) is hinge-type, being covered being combined into by clamp and folder; Be respectively equipped with two electrodes (61) in described clamp and folder lid, each electrode (61) is provided with jaw.
3. one circle line concentric gallows empty conductor comprehensive performance test device according to claim 2, is characterized in that: described jaw is V-arrangement jaw.
4. one circle line concentric gallows empty conductor comprehensive performance test device according to claim 1 and 2, is characterized in that: described electrode (61) is gold-plated electrode.
CN201510564361.3A 2015-09-08 2015-09-08 Device for testing comprehensive performance of round wire concentric lay overhead electrical stranded conductor Pending CN105092380A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510564361.3A CN105092380A (en) 2015-09-08 2015-09-08 Device for testing comprehensive performance of round wire concentric lay overhead electrical stranded conductor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510564361.3A CN105092380A (en) 2015-09-08 2015-09-08 Device for testing comprehensive performance of round wire concentric lay overhead electrical stranded conductor

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CN105092380A true CN105092380A (en) 2015-11-25

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107064640A (en) * 2017-05-26 2017-08-18 中国科学院寒区旱区环境与工程研究所 A kind of ice core conductivity measurement workbench
CN107819447A (en) * 2017-09-11 2018-03-20 上海亚明照明有限公司 Line concentration type wave filter
CN108957138A (en) * 2018-06-29 2018-12-07 德京集团股份有限公司 A kind of high heat dissipation cable resistance rate detector
CN110426572A (en) * 2019-07-20 2019-11-08 中国船舶重工集团公司第七二四研究所 Horizontal VPX modular debugging device
CN112881169A (en) * 2021-01-08 2021-06-01 上海电机学院 Wire tensile property and conductivity test instrument
CN112945730A (en) * 2021-02-02 2021-06-11 重庆市计量质量检测研究院 Integrated device for testing breaking tension of stranded wire and measuring method thereof

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Publication number Priority date Publication date Assignee Title
JP2008134184A (en) * 2006-11-29 2008-06-12 Nippon Avionics Co Ltd Method and apparatus for evaluating joining properties/connectivity of surface of metal
CN202815091U (en) * 2012-08-06 2013-03-20 成都默一科技有限公司 Conductor direct-current resistance testing device
CN103336178A (en) * 2013-06-05 2013-10-02 浙江华电器材检测研究所 A conductor direct current resistance intelligent testing system and a method thereof
CN203300818U (en) * 2013-06-05 2013-11-20 歌尔声学股份有限公司 Wire clamp for testing
CN204903302U (en) * 2015-09-08 2015-12-23 国家电网公司 Concentric turntable hollow wire comprehensive properties testing arrangement of circle line

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008134184A (en) * 2006-11-29 2008-06-12 Nippon Avionics Co Ltd Method and apparatus for evaluating joining properties/connectivity of surface of metal
CN202815091U (en) * 2012-08-06 2013-03-20 成都默一科技有限公司 Conductor direct-current resistance testing device
CN103336178A (en) * 2013-06-05 2013-10-02 浙江华电器材检测研究所 A conductor direct current resistance intelligent testing system and a method thereof
CN203300818U (en) * 2013-06-05 2013-11-20 歌尔声学股份有限公司 Wire clamp for testing
CN204903302U (en) * 2015-09-08 2015-12-23 国家电网公司 Concentric turntable hollow wire comprehensive properties testing arrangement of circle line

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107064640A (en) * 2017-05-26 2017-08-18 中国科学院寒区旱区环境与工程研究所 A kind of ice core conductivity measurement workbench
CN107819447A (en) * 2017-09-11 2018-03-20 上海亚明照明有限公司 Line concentration type wave filter
CN108957138A (en) * 2018-06-29 2018-12-07 德京集团股份有限公司 A kind of high heat dissipation cable resistance rate detector
CN108957138B (en) * 2018-06-29 2021-04-02 德京集团股份有限公司 High heat dissipation cable resistivity detector
CN110426572A (en) * 2019-07-20 2019-11-08 中国船舶重工集团公司第七二四研究所 Horizontal VPX modular debugging device
CN112881169A (en) * 2021-01-08 2021-06-01 上海电机学院 Wire tensile property and conductivity test instrument
CN112945730A (en) * 2021-02-02 2021-06-11 重庆市计量质量检测研究院 Integrated device for testing breaking tension of stranded wire and measuring method thereof
CN112945730B (en) * 2021-02-02 2024-03-05 重庆市计量质量检测研究院 Integrated device for testing breaking force of stranded wire and measuring method thereof

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Application publication date: 20151125