CN106813585A - A kind of conductor spacer range measurement and installation method - Google Patents
A kind of conductor spacer range measurement and installation method Download PDFInfo
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- CN106813585A CN106813585A CN201611125781.2A CN201611125781A CN106813585A CN 106813585 A CN106813585 A CN 106813585A CN 201611125781 A CN201611125781 A CN 201611125781A CN 106813585 A CN106813585 A CN 106813585A
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- conductor spacer
- wire
- shaft tower
- shaft
- point
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention discloses a kind of conductor spacer range measurement and installation method, described method sets up plane right-angle coordinate between two adjacent shaft towers for needing installation interval rod, each corresponding chord length of span between two shaft towers is calculated by formula, using distance-measuring device, first position of conductor spacer on wire is determined by the chord length between wire hitch point on shaft tower one and the point and first conductor spacer, and first conductor spacer is installed, by the chord length between the position of the first conductor spacer on wire and first and second conductor spacer, determine the position of the second conductor spacer, and second conductor spacer is installed, similarly, n-th position of conductor spacer is determined successively and n-th conductor spacer is installed.The present invention single on line can complete conductor spacer range measurement and installation, reduce human input and time input in conductor spacer range measurement and installation process, reduce the measurement in the special physical features such as mountain area and installation difficulty, lift operating efficiency.
Description
Technical field
The present invention relates to electric line technical field, more particularly to a kind of conductor spacer range measurement and installation method.
Background technology
The conductor galloping problem of transmission line of electricity is the big hidden danger for threatening power grid security, the installation interval rod on transmission line of electricity
It is a kind of conventional technological means, the Main Function of conductor spacer is：Prevent the whiplash between sub-conductor, suppress aeolian vibration, suppression
Subspan oscillation processed.In the national standard that numbering is GB50233-2014《110kV~750kV Overhead Transmission Line Constructions and test
Receive specification》In bulletin, the installation requirement of conductor spacer is that " structural plane of the conductor spacer of split conductor should be vertical with wire, shaft tower two
The mounting distance tolerance of the conductor spacer of side first should be ± the 1.5% of end time span, and remaining answers ± the 3% of time span, respectively
Separately rod is preferably in same vertical plane." bulletin for conductor spacer span and actual installation distance between error be made that
It is certain to require.At present, during installation interval rod, there be the method for distance between conventional measurement interval rod：1. surveyed on line
The rope direct method of measurement, in actual measurement work often in this way, but lining rope contains wire, during spanning the transmission line road
It is susceptible to get an electric shock and induced electricity, unfavorable to construction safety, and lining rope serious wear, the often lining rope after a strain section is measured
Substantially scrap, measurement error is big, efficiency is low, and it is high to weather conditions requirement, only at least need two people to measure on line, still needed under line
Want personnel to coordinate, take more human resources；2. the method for line lower angle method measurement interval rod distance, determines in this way
Conductor spacer mounting distance deviation it is big, and need on-line off-line more personnel to coordinate；3. measured using driving of having the records of distance by the log, made
When measuring and determine the installation site of conductor spacer in this way, driving of having the records of distance by the log is inconvenient to carry, in some physical features such as mountain area
Special place is difficult to carry, and is also required to more personnel's cooperation.
The content of the invention
It is an object of the invention to provide a kind of conductor spacer range measurement and installation method, the method can lift conductor spacer peace
Precision in filling, reduces conductor spacer range measurement and is put into and time capital input with the human resources in installation process.And should
The distance-measuring device used in method uses safety, is easy to carry, and is influenceed small by weather and physical features.
The technical solution adopted by the present invention is：A kind of conductor spacer range measurement and installation method, comprise the following steps:
1), plane right-angle coordinate is set up between two adjacent shaft towers for needing installation interval rod：Left side shaft tower is bar
Tower one, right side shaft tower be shaft tower two, with shaft tower one on wire hitch point as origin, shaft tower one be y-axis, it is vertical with shaft tower one, and
The straight line intersected with shaft tower two is x-axis, and direction to the right is x-axis positive direction, and upwardly direction is y-axis positive direction, sets up plane
Rectangular coordinate system；
2) parameter, is collected：Including left side shaft tower height H1, right-hand rod tower height degree H2, wire every meter of weight w, two between two shaft towers
Span l between shaft tower between wire Horizontal Tension T, two shaft towers, each span S between two shaft towersi, be spaced between two shaft towers
The quantity n, 1≤i of rod≤n+1；
3), the conductor spacer between two shaft towers and the position of conductive contact are regarded as one in the plane right-angle coordinate
Point, determines the coordinate (x of each pointn、yn), wherein, origin is (x0, y0), wire suspension point coordinates is on shaft tower two
(xn+1, yn+1), x0、y0、xn+1、yn+1Value it is as follows：x0=0, y0=0, xn+1=l, yn+1=h, h=H1-H2；
x1、x2……xnValue it is as follows：
x1=S1,
x2=S1+S2,
xn=S1+S2+…+Sn；
According to trolley line suspense sagging function computing formula, the ordinate y of each point is calculated1、y2……yn,
Trolley line suspense sagging function of the wire hitch point as origin calculates the corresponding ordinate y of each point on shaft tower onenIt is public
Formula is as follows：
laFor the wire between two shaft towers horizontal minimum point to shaft tower one horizontal range；
4) time span S, is calculated successively1、S2…Si…Sn+1Corresponding chord length L1、L2…Li…Ln+1Value, i-th chord length Li
Computing formula it is as follows：
5), using distance-measuring device, by wire hitch point on shaft tower one and chord length L1, determine on wire between first
Every the position of rod, and first conductor spacer is installed, by the position of the first conductor spacer on wire and chord length L2, determine the second interval
The position of rod, and second conductor spacer is installed, similarly, n-th position of conductor spacer is determined successively and n-th conductor spacer is installed.
The distance-measuring device includes the laser range finder of camera focus aiming function, the clamping for clamping wire
Device and rotary connector；Described rotary connector includes being fixedly installed on the second installing plate of clamping device upper surface, connects
Extension bar, the clip being set in connecting rod and the first installing plate of clip upper surface is fixedly installed on, the first installing plate upper surface
It is fixedly connected with laser range finder, described connecting rod upper end is rotated with the first installing plate and is connected, and connecting rod is installed with second
Plate is fixedly connected.
Described clip includes clamping screw, the first card-tight part and the second card-tight part that are engaged, the first card-tight part and the
Two card-tight parts are provided with the screwed hole being engaged with clamping screw, and the screwed hole of the first card-tight part is through hole.
The end of clamping screw nut side is extended handle.
The present invention coordinates special conductor spacer distance-measuring device by calculating the corresponding chord length of span, and the distance is surveyed
Amount measurement device precision is high, improves the certainty of measurement in conductor spacer installation process, and the distance-measuring device small volume, grasps
Make simple, can on line the single measurement and conductor spacer for completing conductor spacer mounting distance installation, reduce conductor spacer mounting distance
Human input in measurement and installation process, reduces the measurement difficulty in the special physical features such as mountain area, lifts operating efficiency.
Brief description of the drawings
Fig. 1 is distance-measuring device schematic diagram of the present invention；
Fig. 2 is clip schematic diagram of the present invention.
Specific embodiment
Conductor spacer range measurement of the present invention and installation method are comprised the following steps:
1), plane right-angle coordinate is set up between two adjacent shaft towers for needing installation interval rod：Left side shaft tower is bar
Tower one, right side shaft tower be shaft tower two, with shaft tower one on the hitch point of wire 3 as origin, shaft tower one be y-axis, it is vertical with shaft tower one, and
The straight line intersected with shaft tower two is x-axis, and direction to the right is x-axis positive direction, and upwardly direction is y-axis positive direction, sets up plane
Rectangular coordinate system；
2) parameter, is collected：Including left side shaft tower height H1, right-hand rod tower height degree H2, every meter of weight w of wire 3 between two shaft towers,
Span l between two shaft towers between the Horizontal Tension T of wire 3, two shaft towers, each span S between two shaft towersi, between two shaft towers
The quantity n, 1≤i of conductor spacer≤n+1；
3), the position that the conductor spacer between two shaft towers is contacted with wire 3 is regarded as one in the plane right-angle coordinate
Point, determines the coordinate (x of each pointn、yn), wherein, origin is (x0, y0), the suspension of wire 3 point coordinates is on shaft tower two
(xn+1, yn+1),
x0、y0、xn+1、yn+1Value it is as follows：x0=0, y0=0, xn+1=l, yn+1=h, h=H1-H2；
x1、x2……xnValue it is as follows：
x1=S1,
x2=S1+S2,
xn=S1+S2+…+Sn；
According to trolley line suspense sagging function computing formula, the ordinate y of each point is calculated1、y2……yn,
Trolley line suspense sagging function of the hitch point of wire 3 as origin calculates the corresponding ordinate y of each point on shaft tower onenIt is public
Formula is as follows：
laFor the wire 3 between two shaft towers horizontal minimum point to shaft tower one horizontal range；
4) time span S, is calculated successively1、S2…Si…Sn+1Corresponding chord length L1、L2…Li…Ln+1Value, i-th chord length Li
Computing formula it is as follows：
5), using distance-measuring device, by the hitch point of wire 3 on shaft tower one and chord length L1, determine first on wire 3
The position of conductor spacer, and first conductor spacer, position and chord length L by the first conductor spacer on wire 3 are installed2, determine second
The position of conductor spacer, and second conductor spacer is installed, similarly, n-th position of conductor spacer is determined successively and n-th interval is installed
Rod.
Described distance-measuring device includes the laser range finder 1 of camera focus aiming function, for clamping wire 3
Clamping device 8 and rotary connector；Described rotary connector includes being fixedly installed on the second installation of the upper surface of clamping device 8
Plate 5, connecting rod 4, the clip 6 being set in connecting rod 4 and the first installing plate 7 of the upper surface of clip 6 is fixedly installed on, the first peace
The dress upper surface of plate 7 is fixedly connected with laser range finder 1, and described connecting rod 4 is rotated with the first installing plate 7 and is connected, under connecting rod 4
End is fixedly connected with the second installing plate 5.Laser range finder 1 need to have shooting aiming function, in the screen of this laser range finder 1
On curtain, it can be seen that represent the red point of actual measurement location and the image of surrounding, laser range finder 1 ensures conductor spacer range finding essence
Degree, and the influence of the adverse weather situations such as weather conditions such as strong wind can be reduced.The shooting aiming function of laser range finder 1 can
Solve when 50-80m range measurements are carried out, in some cases laser aiming it is red from the point of view of unclear problem.In the present embodiment, laser
Rangefinder 1 is using small volume, Hand-hold Distance Finder 1 easy to carry.The upper surface of clamping device 8 and the lower end of laser range finder 1
Face is parallel, and be fixed on distance-measuring device on wire 3 by clamping device 8, and when using, clamping device 8 is clamped in wire 3 vertically
On, it is ensured that the measurement direction of laser range finder is the place direction of wire 3, meanwhile, laser range finder can be rotated in vertical direction,
And because shaking the error for causing when reducing hand-held.
The first card-tight part 61 and the second card-tight part 62 that clip 6 includes clamping screw 63, is engaged, the He of the first card-tight part 61
Second card-tight part 62 is provided with the screwed hole being engaged with clamping screw 63, and the screwed hole of the first card-tight part 61 is through hole.It is described
The nut side of clamping screw 63 end be extended have handle.The outward turning of handle 2 can make clip 6 unclamp connecting rod 4,
Rotary handle 2 is that adjustable angle adjusts the anglec of rotation using handle 2, and the inward turning of handle 2 can make clip 6 be in clamping connection bar 4, make
It is more laborsaving with handle, more facilitate, and handle rotate distance it is larger when, clip 6 is smaller around the angle that connecting rod is rotated, and makes
Must adjust more accurate.
During measurement, using above-mentioned conductor spacer range measurement and installation method, it is first determined the end time between two adjacent shaft towers
Span S1Corresponding chord length L1, after carrying out rough measurement, high-altitude personnel generally move to the installation site of the first conductor spacer, away from
Clamping device 8 from measurement apparatus is clamped on wire 3 vertically, and adjustment angle regulation handle 2, laser range finder 1 is being put down vertically
Rotation in surface, makes Hand-hold Distance Finder 1 accurately be directed at the hanging yoke plate of tangent tower, completes the measurement of end time span, accurately really
Print is drawn after determining first installation site of conductor spacer, half thickness of hanging yoke plate is subtracted when drawing print, the first conductor spacer is installed
Finish.High-altitude personnel generally move to second position of conductor spacer, and conductor spacer distance-measuring device is clamped on wire 3,
Adjustment angle regulation handle 2, accurately first conductor spacer of alignment, measures time span S2Corresponding chord length L2, accurately determine second
Print is drawn after the installation site of individual conductor spacer, half interval rod thickness is subtracted when drawing print, and complete second installation of conductor spacer.
Successively according to chord length Li, using the conductor spacer distance-measuring device being engaged, complete the installation of each conductor spacer.Range measurement is filled
Small volume is put, is easy to carry, it is simple to operate, during whole operation, it is only necessary to which aloft work personnel can complete on a line
The measurement of conductor spacer distance and the installation of conductor spacer, save and coordinate without other people in human resources, and line, can lift work
Efficiency.The place big for the traditional measurement methods such as mountain area measurement difficulty, also can easily carry to job site equipment, and complete
Rod range measurement at interval.
In the middle of distance measurement process, when aiming at every time, the same area of conductor spacer should be directed at, error can be reduced.Because of hand
Laser range finder 1 is held with shooting aiming function, on the screen of Hand-hold Distance Finder 1, it can be seen that red point and measurement mesh
Target situation, can accomplish the more accurate same area of each alignment spaces rod.
Claims (4)
1. a kind of conductor spacer range measurement and installation method, it is characterised in that：Comprise the following steps:
1), plane right-angle coordinate is set up between two adjacent shaft towers for needing installation interval rod：Left side shaft tower is shaft tower one,
Right side shaft tower is shaft tower two, with shaft tower one on wire hitch point as origin, shaft tower one is y-axis, vertical with shaft tower one, and and shaft tower
Two intersecting straight lines are x-axis, and direction to the right is x-axis positive direction, and upwardly direction is y-axis positive direction, sets up flat square seat
Mark system；
2) parameter, is collected：Including left side shaft tower height H1, right-hand rod tower height degree H2, every meter of weight w of wire, two shaft towers between two shaft towers
Between span l, each span S between two shaft towers between wire Horizontal Tension T, two shaft towersi, conductor spacer between two shaft towers
Quantity n, 1≤i≤n+1；
3), the conductor spacer between two shaft towers and the position of conductive contact are regarded as a point in the plane right-angle coordinate, really
Make the coordinate (x of each pointn、yn), wherein, origin is (x0, y0), wire suspension point coordinates is (x on shaft tower twon+1,
yn+1), x0、y0、xn+1、yn+1Value it is as follows：x0=0, y0=0, xn+1=l, yn+1=h, h=H1-H2；
x1、x2……xnValue it is as follows：
x1=S1,
x2=S1+S2,
xn=S1+S2+…+Sn；
According to trolley line suspense sagging function computing formula, the ordinate y of each point is calculated1、y2……yn,
Trolley line suspense sagging function of the wire hitch point as origin on shaft tower one, calculates the corresponding ordinate y of each pointnFormula
It is as follows：
laFor the wire between two shaft towers horizontal minimum point to shaft tower one horizontal range；
4) time span S, is calculated successively1、S2…Si…Sn+1Corresponding chord length L1、L2…Li…Ln+1Value, i-th chord length LiMeter
Calculate formula as follows：
5), using distance-measuring device, by wire hitch point on shaft tower one and chord length L1, determine first conductor spacer on wire
Position, and install first conductor spacer, by the position of the first conductor spacer on wire and chord length L2, determine the second conductor spacer
Position, and second conductor spacer is installed, similarly, n-th position of conductor spacer is determined successively and n-th conductor spacer is installed.
2. conductor spacer range measurement according to claim 1 and installation method, it is characterised in that：Described range measurement dress
Put and include the laser range finder of camera focus aiming function, clamping device and rotary connector for clamping wire；It is described
Rotary connector include be fixedly installed on clamping device upper surface the second installing plate, be fixedly installed on the second installing plate upper end
The connecting rod in face, the clip being set in connecting rod and the first installing plate of clip upper surface is fixedly installed on, connecting rod and the
One installing plate rotates connection, and the first installing plate upper surface is fixedly connected with laser range finder.
3. conductor spacer range measurement according to claim 2 and installation method, it is characterised in that：Described clip includes card
Tight screw, the first card-tight part and the second card-tight part being engaged, the first card-tight part and the second card-tight part are provided with and clamping screw
The screwed hole being engaged, the screwed hole of the first card-tight part is through hole.
4. conductor spacer range measurement according to claim 3 and installation method, it is characterised in that：Described clamping screw spiral shell
The end of cap side is extended handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611125781.2A CN106813585B (en) | 2016-12-09 | 2016-12-09 | A kind of conductor spacer range measurement and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611125781.2A CN106813585B (en) | 2016-12-09 | 2016-12-09 | A kind of conductor spacer range measurement and installation method |
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| Publication Number | Publication Date |
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| CN106813585A true CN106813585A (en) | 2017-06-09 |
| CN106813585B CN106813585B (en) | 2019-04-09 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107818563A (en) * | 2017-10-26 | 2018-03-20 | 西安工程大学 | A kind of transmission line of electricity bundle spacing space measurement and localization method |
| CN109323648A (en) * | 2018-10-24 | 2019-02-12 | 青海送变电工程有限公司 | A kind of lead spacer mounting distance measuring appliance |
| CN114279359A (en) * | 2021-12-24 | 2022-04-05 | 江苏中天科技股份有限公司 | Measuring device and measuring method for lead |
| CN115080906A (en) * | 2022-06-20 | 2022-09-20 | 贵州电网有限责任公司 | Equivalent icing monitoring method and system for power transmission line |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009219321A (en) * | 2008-03-12 | 2009-09-24 | Chugoku Electric Power Co Inc:The | Horizontal branched spacer and method of manufacturing the same |
| CN202153251U (en) * | 2011-07-25 | 2012-02-29 | 中电国科(北京)科技有限公司 | Power transmission line comprehensive measurement and control device |
| KR20130060802A (en) * | 2011-11-30 | 2013-06-10 | 한국전력공사 | Rod for phase spacer |
| CN104700215A (en) * | 2015-03-13 | 2015-06-10 | 梁来先 | Comprehensive calculating system and method for stringing construction of electric transmission line |
| CN104930975A (en) * | 2015-06-29 | 2015-09-23 | 山东送变电工程公司 | Interval rod mounting range finder |
| CN105760561A (en) * | 2014-12-17 | 2016-07-13 | 国家电网公司 | Bundled conductor aeolian vibration determination method considering spacer damping parameter |
-
2016
- 2016-12-09 CN CN201611125781.2A patent/CN106813585B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009219321A (en) * | 2008-03-12 | 2009-09-24 | Chugoku Electric Power Co Inc:The | Horizontal branched spacer and method of manufacturing the same |
| CN202153251U (en) * | 2011-07-25 | 2012-02-29 | 中电国科(北京)科技有限公司 | Power transmission line comprehensive measurement and control device |
| KR20130060802A (en) * | 2011-11-30 | 2013-06-10 | 한국전력공사 | Rod for phase spacer |
| CN105760561A (en) * | 2014-12-17 | 2016-07-13 | 国家电网公司 | Bundled conductor aeolian vibration determination method considering spacer damping parameter |
| CN104700215A (en) * | 2015-03-13 | 2015-06-10 | 梁来先 | Comprehensive calculating system and method for stringing construction of electric transmission line |
| CN104930975A (en) * | 2015-06-29 | 2015-09-23 | 山东送变电工程公司 | Interval rod mounting range finder |
Non-Patent Citations (2)
| Title |
|---|
| 冯海波 等: "220kV双***导线跳线制作", 《河南电力》 * |
| 李博之: "《高压架空输电线路施工技术手册 第3版 架线工程计算部分》", 31 December 2008 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107818563A (en) * | 2017-10-26 | 2018-03-20 | 西安工程大学 | A kind of transmission line of electricity bundle spacing space measurement and localization method |
| CN107818563B (en) * | 2017-10-26 | 2021-06-08 | 西安工程大学 | Space measurement and positioning method for split conductor spacing of power transmission line |
| CN109323648A (en) * | 2018-10-24 | 2019-02-12 | 青海送变电工程有限公司 | A kind of lead spacer mounting distance measuring appliance |
| CN109323648B (en) * | 2018-10-24 | 2020-05-26 | 青海送变电工程有限公司 | Installation distance measuring device for conductor spacer |
| CN114279359A (en) * | 2021-12-24 | 2022-04-05 | 江苏中天科技股份有限公司 | Measuring device and measuring method for lead |
| CN114279359B (en) * | 2021-12-24 | 2024-04-19 | 江苏中天科技股份有限公司 | Wire measuring device and wire measuring method |
| CN115080906A (en) * | 2022-06-20 | 2022-09-20 | 贵州电网有限责任公司 | Equivalent icing monitoring method and system for power transmission line |
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Address after: 450051 Zhengzhou, Central Plains District, Henan West Road, No. 76 Applicant after: Henan power transmission and Substation Construction Co., Ltd. Applicant after: State Grid Corporation of China Address before: 450051 Zhengzhou, Central Plains District, Henan West Road, No. 76 Applicant before: Henan Power Transmission and Distribution Project Co., Ltd. Applicant before: State Grid Corporation of China |
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