CN113612162A - Method for determining installation position of wire clamping device - Google Patents
Method for determining installation position of wire clamping device Download PDFInfo
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- CN113612162A CN113612162A CN202110770176.5A CN202110770176A CN113612162A CN 113612162 A CN113612162 A CN 113612162A CN 202110770176 A CN202110770176 A CN 202110770176A CN 113612162 A CN113612162 A CN 113612162A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
- H02G1/04—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching
Abstract
The invention discloses a method for determining the installation position of a wire clamping device, wherein the wire clamping device is clamped on a wire hung between towers to tighten the wire, and the method comprises the following steps: calculating the take-up length delta L of the wire in the whole wire tightening operation; determining the space length Lc of the lead wire required by the crimping working condition after the wire rewinding working condition; and measuring the sum of the take-up length delta L and the space length Lc from a wire hanging point of the wire and along an extending path of the wire to obtain a target point, wherein the target point is the installation position of the wire clamping device. By the aid of the technical scheme, the technical problems that errors are prone to occurring due to the fact that the installation position of the wire clamping device cannot be determined, reworking phenomena are prone to occurring, construction progress is affected and the like in the prior art are solved.
Description
Technical Field
The invention relates to the technical field of power transmission, in particular to a method for determining the installation position of a wire clamping device.
Background
The power line is a major component of the power grid. The transmission line is a line which is used by a power plant to transmit electric energy to a power load center and is mutually communicated with the load center, has large transmission capacity, long transmission distance and high line voltage level, and is a backbone network frame of a power network. With the rapid development of power grid construction, the new construction and reconstruction projects of 220kV power transmission lines are more and more, and line tightening construction is a main process in overhead power transmission line construction, and the task of the line tightening construction is to erect a conducting wire and a lightning conductor on an assembled tower according to designed line tightening stress (sag).
When the wire tightening operation is performed, the wire is generally clamped by the wire clamping device, and then the wire is tightened to the designed sag by the tightening device (such as a pulley). The installation position of the wire clamping device clamped on the wire is mainly determined by construction experience at present, and an accurate calculation method is not provided, so that on one hand, the wire tightening device runs the whole process, but the wire is not tightened to the design sag, and finally, the wire can be continuously tightened to the design sag only after being re-anchored and additionally provided with the wire clamping device and the wire tightening device; on the other hand, the situation that the wire is tightened to the designed sag, a long distance exists between the wire clamping device and the wire hanging point, and the wire in the distance is loose, so that the wire hanging point cutting and printing position is inaccurate. The installation position of the wire clamping device relative to the wire in the prior art has large errors, so that the rework condition is easy to occur and the construction progress is influenced.
Disclosure of Invention
Based on the technical scheme, the invention provides a method for determining the installation position of the wire clamping device, and aims to solve the technical problems that errors are easy to occur in the installation position of the wire clamping device in the prior art, so that the rework phenomenon is easy to occur, the construction progress is influenced, and the like.
The invention provides a method for determining the installation position of a wire clamping device, wherein the wire clamping device is clamped on a wire hung between towers to tighten the wire, and the method comprises the following steps:
calculating the take-up length delta L of the wire in the whole wire tightening operation;
determining the space length Lc of the lead wire required by the crimping working condition after the wire rewinding working condition;
and measuring the sum of the take-up length delta L and the space length Lc from a wire hanging point of the wire and along an extending path of the wire to obtain a target point, wherein the target point is the installation position of the wire clamping device.
In an embodiment of the method for determining the installation position of the wire clamping device, the tower comprises an operation tower for tightening, a strain insulator string is suspended on the operation tower, and a lead is in butt joint with the strain insulator string, so that the sum of the take-up length Δ L and the space length Lc is measured from a wire hanging point of the lead and along an extending path of the lead to obtain a target point specifically as follows:
and measuring the sum of the take-up length delta L and the space length Lc from the butt joint point of the lead and the strain insulator string in butt joint and along the extending path of the lead to obtain a target point.
In an embodiment of the method for determining the installation position of the wire clamp, the calculating the take-up length Δ L of the wire in the whole wire tightening operation includes:
calculating the length L of the conductor after completing the butt joint working condition1；
Calculating the line length L of the lead after the wire tightening working condition is finished2；
The length L of the conducting wire after the working condition of butt joint is completed1The length L of the wire after the wire is tightened2And subtracting to obtain the take-up length delta L.
In an embodiment of the method for determining the installation position of the wire clamp, the tower further comprises an anchor line tower for soft hanging wires and a linear tower arranged between the operating tower and the anchor line tower, then:
wherein l is the distance between the linear tower close to the operating tower and the operating tower, and the unit is m;
the included angle is formed by a straight line connected between two adjacent wire hanging points of a wire and a horizontal line, wherein one wire hanging point is arranged on the linear tower close to the operating tower, and the other wire hanging point is arranged on the operating tower and has the unit of an angle; h is the tension of the wire, and the unit is N; omega is the weight of the lead in unit length and the unit is N/m; k1The influence coefficient of the strain insulator string on the length of the lead wire under the butt joint working condition is shown; k2And the influence coefficient of the strain insulator string on the length of the wire is the wire tightening working condition.
In an embodiment of the method of determining the mounting position of the wire clamp, the wire includes an operation step between the operation tower and the linear tower, and the K1The influence coefficient of the strain insulator string on the operation gear under the butt joint working condition is shown; said K2And the influence coefficient of the strain insulator string on the operation gear under the wire tightening working condition is shown.
In an embodiment of a method of determining a mounting position of a card-line connector,
wherein, ω is0The unit length of the strain insulator string is the self-gravity, and the unit is N/m; x is the first butt joint number of the wires; n is the total number of the conducting wires; and lambda is the length of the strain insulator string and the unit is m.
In an embodiment of the method for determining the installation position of the wire clamp, the tower further comprises an anchor line tower for soft hanging wires, and then:
wherein l is the distance between the operating tower and the anchor line tower, and is in m;
the included angle is formed by a straight line connected between two wire hanging points of a wire and a horizontal line, wherein one wire hanging point is arranged on the anchor wire tower, and the other wire hanging point is arranged on the operation tower and has the unit of an angle; h is the tension of the wire, and the unit is N; omega is the weight of the lead in unit length and the unit is N/m; k1The influence coefficient of the strain insulator string on the length of the lead wire under the butt joint working condition is shown; k2And the influence coefficient of the strain insulator string on the length of the wire is the wire tightening working condition.
In an embodiment of a method of determining a mounting position of a card-line connector,
wherein, ω is0The unit length of the strain insulator string is the self-gravity, and the unit is N/m; x is the first butt joint number of the wires; n is the total number of the conducting wires; lambda is the length of the strain insulator stringIs m.
In an embodiment of a method of determining a mounting position of a card-line connector,
the wire with the butt joint of strain insulator string includes:
butting the first batch of conducting wires with the strain insulator string by taking preset stringing tension as a butting standard;
and butting the rest conducting wires with the strain insulator string by taking the sag formed after the first batch of conducting wires are butted as a butting standard.
In an embodiment of the method for determining the installation position of the wire clamping device, if a distance between a butt joint point of the butt joint of the lead and the strain insulator string and the installation position of the wire clamping device is L:
the embodiment of the invention has the following beneficial effects:
in the invention, the wire take-up length of the wire in the whole wire tightening operation is firstly calculated, and the wire take-up length is determined to ensure the wire sag; determining the length of an operation space required by a crimping working condition of the wire after the wire winding working condition, and measuring the sum of the wire winding length delta L and the operation space length Lc along an extending path of the wire from a wire hanging point of the wire to obtain a target point, wherein the target point is the installation position of the wire clamping device; therefore, when the wire clamping device is driven by the tightening device to tighten the wire to the designed sag, the stroke of the wire clamping device is just equal to the take-up length delta L, so that the stroke of the wire clamping device is ensured to correspond to the designed sag of the wire; and the distance between the wire clamping device and the wire hanging point of the wire is equal to the length Lc of the operation space required by the crimping working condition, so that the accuracy of the wire cutting and printing position is ensured. By the aid of the technical scheme, the technical problems that errors are prone to occurring due to the fact that the installation position of the wire clamping device cannot be determined, reworking phenomena are prone to occurring, construction progress is affected and the like in the prior art are solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Wherein:
fig. 1 is a schematic flow chart illustrating a method for determining a mounting position of a wire clamp according to an embodiment of the present invention;
fig. 2 is a schematic flow chart illustrating a method for determining the mounting position of the wire clamp according to an embodiment of the present invention;
FIG. 3 is a schematic view showing a state where a wire is not tightened;
fig. 4 shows a schematic view of the state after the wire is completely tightened.
Description of the main element symbols:
10. a wire; 20. a wire clamping device; 30. a wire tensioning device; 40. strain insulator string; 50. operating the tower; .
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The embodiments of the present invention will be described below with reference to the drawings.
Referring to fig. 1 to 4, the present invention provides a method for determining an installation position of a wire clamping device 20, which is used in a power transmission line tightening operation, wherein a wire tightening refers to an overhead wire pulled on a tower, such that a sag of the overhead wire meets a design requirement, and the existing wire tightening construction method generally implements wire tightening by connecting the wire clamping device 20 with a wire tightening device 30 (such as a tackle). The tower comprises an operation tower 50 for the wire tightening operation and an anchor line tower for the flexible hanging wire, and the operation tower 50 and the anchor line tower are strain towers; the stringing operation generally includes anchoring one end of the conductor 10 to an anchor tower, butting the other end of the conductor to a strain insulator string 40 suspended on the strain tower, stringing the conductor to a designed sag, breaking the conductor, and crimping the conductor.
Referring to fig. 1, the method for determining the installation position of the wire clamp 20 includes:
101. calculating the take-up length delta L of the lead 10 in the whole wire tightening operation;
102. determining the operation space length Lc of the lead 10 required by the crimping working condition after the wire rewinding working condition;
103. the sum of the take-up length delta L and the operation space length Lc is measured from the wire hanging point of the wire 10 and along the extending path of the wire 10 to obtain a target point, and the target point is the installation position of the wire clamp 20.
In the invention, the wire take-up length of the wire 10 in the whole wire tightening operation is firstly calculated, and the wire take-up length is determined so as to ensure the wire 10 sag; determining the length of an operation space required by the crimping working condition of the wire 10 after the wire rewinding working condition, and measuring the sum of the wire rewinding length delta L and the operation space length Lc along the extending path of the wire 10 from the wire hanging point of the wire 10 to obtain a target point, wherein the target point is the installation position of the wire clamping device 20; therefore, when the wire clamper 20 is driven by the tightening device to tighten the wire 10 to the designed sag, the stroke of the wire clamper 20 is exactly equal to the take-up length Δ L, so as to ensure that the stroke of the wire clamper 20 corresponds to the designed sag of the wire 10; and the distance between the wire clamping device 20 and the wire hanging point of the wire 10 is equal to the length Lc of the operation space required by the crimping working condition, so that the accuracy of the wire cutting and printing positions is ensured. By the aid of the technical scheme, the technical problems that errors are prone to occurring due to the fact that the installation position of the wire clamping device 20 cannot be determined, reworking phenomena are prone to occurring, construction progress is affected and the like in the prior art are solved.
Referring to fig. 3, the wire 10 is not taken up at this time; referring to fig. 4, at this time, the wire 10 has been taken up in the above-described manner; it should be noted that the length Lc of the operation space required by the crimping condition is manually determined according to the specific construction condition.
In one embodiment, the tower comprises an operating tower 50 for a stringing operation and an anchor line tower for a flexible hanging line; wherein, a strain insulator string 40 is suspended on the operating tower 50, one end of the lead 10 is butted with the strain insulator string 40, and the other end of the lead 10 is anchored with the anchor tower. That is, when the wire 10 is tightened, if the wire 10 close to the operation tower 50 is tightened, the sum of the take-up length Δ L and the space length Lc measured from the wire hanging point of the wire 10 along the extending path of the wire 10 is specifically:
and measuring the sum of the take-up length delta L and the space length Lc from the butt joint point of the lead 10 and the strain insulator string 40 in butt joint along the extending path of the lead 10 to obtain a target point.
If the distance between the butt joint point of the wire 10 and the strain insulator string 40 and the installation position of the wire clamping device 20 is L, then: l ═ Δ L + Lc.
Referring to fig. 2, in one embodiment, the calculating the take-up length Δ L of the wire 10 during the entire stringing process includes:
calculating the length L of the conducting wire 10 after completing the butt joint working condition1；
Calculating the line length L of the lead 10 after the wire tightening working condition is finished2；
The length L of the conducting wire 10 after the butt joint working condition is completed1The length L of the wire 10 after the wire tensioning working condition is finished2And subtracting to obtain the take-up length delta L.
In this embodiment, the wire length difference of the wire 10 in the two states after the butt joint working condition and the wire tightening working condition are completed is calculated, and the wire length difference is the take-up length Δ L of the wire 10.
It should be noted that the operation tower 50 and the anchor tower are both similar to the tension tower, and a tension section is formed between the two base tension towers, that is, a tension section is formed between the operation tower 50 and the anchor tower, and one tension section is a tension section. Specifically, the strain section generally has two forms of a non-isolated barrier (resistant-straight-good, resistant-straight-good form) and an isolated barrier (resistant-good form), that is, a linear tower is arranged between the operation tower 50 and the anchor line tower in the strain section of the non-isolated barrier type, and a linear tower is not arranged between the operation tower 50 and the anchor line tower in the strain section of the isolated barrier type.
In one embodiment, when the tension-resistant section is a non-isolated gear, the tower comprises an operation tower 50 for the operation of wire tensioning, an anchor line tower for the flexible hanging wire, and a linear tower arranged between the operation tower 50 and the anchor line tower. Wherein, the number of the linear towers can be one or more, when the number of the linear towers is one, the conductor 10 comprises an operation rail between the operation tower 50 and the linear tower and a soft hanging wire rail between the linear tower and the anchor line tower; when the linear tower is plural, the conductor 10 includes an operation rail between the operation tower 50 and the linear tower, a linear rail between the linear tower and the linear tower, and a flexible wire-hanging rail between the linear tower and the anchor line tower.
In the present embodiment, it is preferred that,
Wherein l is the distance between the linear tower near the operating tower 50 and the operating tower 50, and is expressed in m;
is an included angle formed by a straight line connected between two adjacent wire hanging points of the wire 10 and a horizontal line, wherein one wire hanging point is arranged on the linear tower close to the operation tower 50, and the other wire hanging point is arranged on the operation tower 50
The unit is DEG; h is the tension of the wire 10 in N; omega is the weight per unit length of the lead 10, and the unit is N/m; k1The influence coefficient of the strain insulator string 40 on the length of the lead 10 under the butt joint working condition; k2And the influence coefficient of the strain insulator string 40 on the length of the lead 10 under the wire tightening working condition is shown.
For the non-isolated strain-resistant section, the wire 10 can be divided into an operation section and a flexible wire-engaging section, or an operation section, a straight section and a flexible wire-engaging section.
Specifically, after the lead 10 is firstly butted with the strain insulator string 40, on one hand, the tension of the linear gear is equal to the preset tightening tension, the tension sag curve of the linear gear is not influenced by the dead weight of the strain insulator string 40, and after the lead 10 finishes the butting working condition and the lead 10 finishes the tightening working condition according to the preset tightening tension, the length of the linear gear is unchanged; on the other hand, the soft wire engaging rail is not affected by the dead weight of the strain insulator string 40, and the wire length of the soft wire engaging rail is not changed after the wire 10 is in the butt joint working condition and the wire 10 is in the wire tightening working condition according to the preset wire tightening tension.
Therefore, only the line length of the operating gear is changed under the influence of the dead weight of the strain insulator string 40, that is, after the wire 10 finishes the butt joint working condition and the wire 10 finishes the wire tightening working condition according to the preset wire tightening tension, the line length of the operating gear is changed, and the line length of the operating gear after the butt joint working condition is finished is subtracted from the line length of the operating gear after the wire tightening working condition is finished to obtain the take-up length delta L.
The influence of the strain insulator string 40 on the length of the conductor 10 is sectional, i.e. K1The influence coefficient of the strain insulator string 40 on the operation gear under the butt joint working condition is shown; k2And the influence coefficient of the strain insulator string 40 on the operation gear under the wire tightening working condition is shown. In particular, the amount of the solvent to be used,
wherein, ω is0The unit length of the strain insulator string 40 is the self-gravity, and the unit is N/m; x is the number of first butt joints of the lead 10; n is the total number of wires 10; λ is the length of the strain insulator string 40, and the unit is m.
In another embodiment, when the tension section is a non-isolated tower, the tower comprises an operating tower 50 for the stringing operation and an anchor tower for the flexible hanging wire. In the present embodiment, it is preferred that,
Wherein l is the distance between the operating tower 50 and the anchor line tower in m;
is an included angle formed by a straight line connected between two wire hanging points of the wire 10 and a horizontal line, wherein one wire hanging point is arranged on the anchor wire tower, and the other wire hanging point is arranged on the operating tower 50 and has the unit of an angle; h is the tension of the wire 10 in N; omega is the weight per unit length of the lead 10, and the unit is N/m; k1The influence coefficient of the strain insulator string 40 on the length of the lead 10 under the butt joint working condition; k2And the influence coefficient of the strain insulator string 40 on the length of the lead 10 under the wire tightening working condition is shown.
In the present embodiment, the whole lead 10 is an operation gear, and the influence of the strain insulator string 40 on the length of the lead 10 is integral; thus:
wherein, ω is0The unit length of the strain insulator string 40 is the self-gravity, and the unit is N/m; x is the number of first butt joints of the lead 10; n is the total number of wires 10; λ is the length of the strain insulator string 40, and the unit is m.
In some specific embodiments, the distance between the abutting point where the lead 10 abuts against the strain insulator string 40 and the installation position of the wire clamping device 20 may be further obtained, specifically:
in one embodiment, the multi-bundle conductor 10 is connected to the strain insulator string 40 in a batch manner, so that the weight of the strain insulator string 40 borne by the connected conductor 10 changes every time the connection is completed, and the weight of the strain insulator string 40 exerted on the conductor 10 affects the length of the conductor 10, and affects the tensile sag curve of the conductor 10. In this embodiment, in order to ensure that the lengths of the wires of the multi-bundle conductor 10 after the abutting joint are consistent, the abutting joint of the conductor 10 and the strain insulator string 40 includes:
butting the first batch of leads 10 with the strain insulator string 40 by taking preset stringing tension as a butting standard;
and butting the rest of the leads 10 with the strain insulator string 40 by taking the sag formed after the first leads 10 are butted as a butting standard.
In the embodiment, the first batch of wires 10 are butted with the strain insulator string 40 by limiting the butting working condition, namely, by taking the preset wire tensioning force as the butting standard; and then the sag formed after the first batch of wires 10 are butted is taken as a butting standard, and the residual wires 10 are butted with the strain insulator string 40, so that the sag curves of the residual wires 10 are consistent with the sag curves of the first batch of wires 10, and the consistency of the lengths of all the wires 10 of the split wires 10 after being butted is ensured, thereby solving the problem that the lengths of all the wires 10 after being butted are inconsistent due to the self weight influence of the strain insulator string 40, simultaneously ensuring that the installation positions of all the wires 10 relative to the wire clamping device 20 are consistent when the wire collecting working condition is carried out, and improving the efficiency of wire tightening operation.
By applying the technical scheme, on one hand, the problem of reworking operation such as re-anchoring and wire tightening caused by insufficient stroke of the wire tightening equipment 30 is effectively prevented; on the other hand, the problem of large drawing and printing errors caused by the fact that the conducting wire 10 between the wire clamping device 20 and the strain insulator string 40 is loosened after the wire tightening operation is finished is effectively solved; on the other hand, the influence of the strain insulator string 40 on the length of the lead 10 under different strain sections is considered, so that the calculation result is more consistent with the actual construction condition.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims. The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
Claims (10)
1. A method for determining the installation position of a wire clamping device, wherein the wire clamping device is clamped on a wire hung between towers to tighten the wire, and the method is characterized by comprising the following steps:
calculating the take-up length delta L of the wire in the whole wire tightening operation;
determining the space length Lc of the lead wire required by the crimping working condition after the wire rewinding working condition;
and measuring the sum of the take-up length delta L and the space length Lc from a wire hanging point of the wire and along an extending path of the wire to obtain a target point, wherein the target point is the installation position of the wire clamping device.
2. The method for determining the installation position of the wire clamping device according to claim 1, wherein the tower comprises an operation tower for wire tightening operation, a strain insulator string is suspended on the operation tower, and a lead is butted with the strain insulator string, so that the sum of the take-up length Δ L and the space length Lc is measured from a wire hanging point of the lead and along an extending path of the lead to obtain a target point specifically as follows:
and measuring the sum of the take-up length delta L and the space length Lc from the butt joint point of the lead and the strain insulator string in butt joint and along the extending path of the lead to obtain a target point.
3. The method for determining the installation position of the wire clamping device as claimed in claim 2, wherein the calculating of the wire take-up length Δ L of the wire in the whole wire tightening operation comprises:
calculating the length L of the conductor after completing the butt joint working condition1；
Calculating the line length L of the lead after the wire tightening working condition is finished2；
The length L of the conducting wire after the working condition of butt joint is completed1The length L of the wire after the wire is tightened2And subtracting to obtain the take-up length delta L.
4. The method for determining the installation position of the wire clamping device as claimed in claim 3, wherein the tower further comprises an anchor line tower for soft hanging wires and a linear tower arranged between the operation tower and the anchor line tower, then:
wherein l is the distance between the linear tower close to the operating tower and the operating tower, and the unit is m;
the included angle is formed by a straight line connected between two adjacent wire hanging points of a wire and a horizontal line, wherein one wire hanging point is arranged on the linear tower close to the operating tower, and the other wire hanging point is arranged on the operating tower and has the unit of an angle; h is the tension of the wire, and the unit is N; omega is the weight of the lead in unit length and the unit is N/m; k1The influence coefficient of the strain insulator string on the length of the lead wire under the butt joint working condition is shown; k2And the influence coefficient of the strain insulator string on the length of the wire is the wire tightening working condition.
5. The method for determining the installation position of the wire clamping device as claimed in claim 4, wherein the wire comprises an operation gear positioned between the operation tower and the linear tower, and the K is1The influence coefficient of the strain insulator string on the operation gear under the butt joint working condition is shown; said K2And the influence coefficient of the strain insulator string on the operation gear under the wire tightening working condition is shown.
6. The method for determining the mounting position of the wire clamper according to claim 5,
wherein, ω is0The unit length of the strain insulator string is the self-gravity, and the unit is N/m; x is the first butt joint number of the wires; n is the total number of the conducting wires; and lambda is the length of the strain insulator string and the unit is m.
7. The method for determining the installation position of the wire clamping device according to claim 3, wherein the tower further comprises an anchor wire tower for soft hanging wires, and then:
wherein l is the distance between the operating tower and the anchor line tower, and is in m;
the included angle is formed by a straight line connected between two wire hanging points of a wire and a horizontal line, wherein one wire hanging point is arranged on the anchor wire tower, and the other wire hanging point is arranged on the operation tower and has the unit of an angle; h is the tension of the wire, and the unit is N; omega is the weight of the lead in unit length and the unit is N/m; k1The influence coefficient of the strain insulator string on the length of the lead wire under the butt joint working condition is shown; k2And the influence coefficient of the strain insulator string on the length of the wire is the wire tightening working condition.
8. The method for determining the mounting position of the wire clamper according to claim 7,
wherein, ω is0The unit length of the strain insulator string is the self-gravity, and the unit is N/m; x is the first butt joint number of the wires; n is the total number of the conducting wires; and lambda is the length of the strain insulator string and the unit is m.
9. The method for determining the mounting position of the wire clamper according to claim 2,
the wire with the butt joint of strain insulator string includes:
butting the first batch of conducting wires with the strain insulator string by taking preset stringing tension as a butting standard;
and butting the rest conducting wires with the strain insulator string by taking the sag formed after the first batch of conducting wires are butted as a butting standard.
10. The method for determining the installation position of the wire clamping device as claimed in claim 4 or 7, wherein if the distance between the abutting point of the abutting joint of the lead and the strain insulator string and the installation position of the wire clamping device is L, then:
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