CN113594966B - Overhead transmission line tightening construction design method and device, terminal and storage medium - Google Patents
Overhead transmission line tightening construction design method and device, terminal and storage medium Download PDFInfo
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- 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
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Abstract
The application relates to a method, a device, a terminal and a storage medium for overhead transmission line tight construction design, which are characterized in that parameter data required by calculating the maximum sag of a lead are obtained; calculating the maximum sag of the lead when the strain insulator string is not connected according to the parameter data; calculating the maximum sag of the lead when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is not connected; calculating the clearance distance between the lead and a spanning object when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is connected; and carrying out overhead transmission line tightening construction design according to the clearance between the lead and the spanning object. According to the invention, when the clearance value between the wire and the spanning object under the preset wire tension value is calculated, the condition that the wire is connected with the strain insulator string is considered, so that the calculation error is greatly reduced, and the construction safety is improved.
Description
Technical Field
The invention relates to the technical field of power transmission line design, in particular to a method, a device, a terminal and a storage medium for overhead power transmission line stringing construction design.
Background
When the overhead transmission line is in tight line construction, the larger the wire tension is, the smaller the wire sag is, and the larger the distance between the wire sag and a spanning object is. In order to ensure the construction safety, the height of the lead is kept above the safe clearance distance with a spanning object when the tension of the lead does not exceed the rated load of a wire tightening tool, and if the height of the lead is below the safe clearance distance, fault tripping or accidents are easily caused, and potential safety hazards are generated on the spanning object. Therefore, the clearance value between the wire and the spanning object under the preset wire tension value needs to be calculated before construction, and whether the wire meets the safety requirement or not is checked. The existing calculation method is to take the overhead line in the calculation gear as a lead wire with only uniformly distributed loads, and the condition that the lead wire is connected with a strain insulator string is not considered, so that the calculation error is larger, and the construction safety is reduced.
Disclosure of Invention
In view of the above, it is desirable to provide a method, an apparatus, a terminal, and a storage medium for designing overhead transmission line tight construction, which can reduce calculation errors and improve construction safety in consideration of the situation where a strain insulator string is connected to a lead wire.
In a first aspect, the invention provides a method for designing overhead transmission line stringing construction, comprising the following steps:
acquiring parameter data required for calculating the maximum sag of the wire;
calculating the maximum sag of the lead when the strain insulator string is not connected according to the parameter data;
calculating the maximum sag of the lead when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is not connected;
calculating the clearance distance between the lead and a spanning object when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is connected;
and carrying out overhead transmission line tightening construction design according to the clearance between the lead and the spanning object.
In a second aspect, the present invention provides an overhead transmission line stringing construction design device, including:
the acquisition module is used for acquiring parameter data required by calculating the maximum sag of the wire;
the first calculation module is used for calculating the maximum sag of the lead when the strain insulator string is not connected according to the parameter data;
the second calculation module is used for calculating the maximum sag of the lead when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is not connected;
the third calculation module is used for calculating the clearance distance between the lead and a spanning object when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is connected;
and the design module is used for carrying out overhead transmission line tightening construction design according to the clearance distance between the lead and the spanning object.
In a third aspect, the present invention provides a terminal comprising a memory and a processor, the memory storing a computer program, the computer program, when executed by the processor, causing the processor to perform the steps of:
acquiring parameter data required for calculating the maximum sag of the wire;
calculating the maximum sag of the lead when the strain insulator string is not connected according to the parameter data;
calculating the maximum sag of the lead when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is not connected;
calculating the clearance distance between the lead and a spanning object when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is connected;
and carrying out overhead transmission line tightening construction design according to the clearance between the lead and the spanning object.
In a fourth aspect, the present invention provides a computer readable storage medium storing a computer program which, when executed by a processor, causes the processor to perform the steps of:
acquiring parameter data required for calculating the maximum sag of the wire;
calculating the maximum sag of the lead when the strain insulator string is not connected according to the parameter data;
calculating the maximum sag of the lead when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is not connected;
calculating the clearance distance between the lead and a spanning object when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is connected;
and carrying out overhead transmission line tightening construction design according to the clearance between the lead and the spanning object.
The invention provides a method, a device, a terminal and a storage medium for overhead transmission line tight construction design, which are characterized in that parameter data required by calculating the maximum sag of a lead are obtained; calculating the maximum sag of the lead when the strain insulator string is not connected according to the parameter data; calculating the maximum sag of the lead when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is not connected; calculating the clearance distance between the lead and a spanning object when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is connected; and carrying out overhead transmission line tightening construction design according to the clearance between the lead and the spanning object. According to the invention, when the clearance value between the wire and the spanning object under the preset wire tension value is calculated, the condition that the wire is connected with the strain insulator string is considered, so that the calculation error is greatly reduced, and the construction safety is improved.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of 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 structures shown in the drawings without creative efforts.
FIG. 1 is a flow chart of a method for designing overhead transmission line tightening construction in one embodiment;
FIG. 2 is a schematic view of a lead with a strain insulator string attached to one end thereof in one embodiment;
FIG. 3 is a schematic view of a lead with strain insulator strings attached to both ends thereof in one embodiment;
FIG. 4 is a schematic representation of the position of conductive lines and crossover in one embodiment;
FIG. 5 is a schematic diagram of the position of the conductive lines and the crossover in one embodiment;
fig. 6 is a block diagram showing a structure of an overhead transmission line stringing construction designing apparatus according to an embodiment;
FIG. 7 is a diagram illustrating an internal structure of a computer device according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, the invention provides a method for designing line tightening construction of an overhead transmission line, which comprises the following steps:
and 102, acquiring parameter data required for calculating the maximum sag of the wire.
In the overhead transmission line, the suspended flexible wire inevitably produces sag. The sag is the vertical distance from any point on the wire suspension curve to the connecting line of the two suspension points, and the vertical distance from the wire at the center of the span to the connecting line of the two suspension points is the maximum sag.
The parameter data required for calculating the maximum sag of the wire comprise an operation gear wire hanging point difference angle, an operation gear span, a wire unit length dead weight and a wire lowest point horizontal tension.
The operating span refers to the horizontal distance between two suspension points of the overhead conductor.
The height difference angle of the hanging points of the gear making conductor refers to the included angle between the connecting line of the two hanging points of the overhead conductor and the horizontal line.
And 104, calculating the maximum sag of the lead when the strain insulator string is not connected according to the parameter data.
Wherein, strain insulator string is the important component among the overhead transmission line, and supporting connection gold utensil uses together, and several products are strung together according to the construction needs and are reached the pulling force requirement. The strain insulator string mainly comprises a ceramic strain insulator string and a composite strain insulator string, and can effectively isolate an electrified lead from the ground and enable each electric wire to keep the position of the electric wire.
In one embodiment, calculating the maximum sag of the wire when the strain insulator string is not connected according to the parameter data comprises the following steps: obtaining a formula for calculating the maximum sag of the lead when the strain insulator string is not connected; calculating according to the parameter data and the formula of the maximum sag of the wire when the strain insulator string is not connected to the wire to obtain the maximum sag of the wire when the strain insulator string is not connected to the wire, wherein the formula is as follows:
wherein f is 0 The arc of the lead is vertical when no tension insulator string is connected,
the height difference angle of the wire hanging point of the operating gear, the gear span of the operating gear, the dead weight of the wire in unit length, and the horizontal tension of the lowest point of the wire are respectively represented by I, omega and H.
And 106, calculating the maximum sag of the lead when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is not connected.
Wherein, it has strain insulator string to ally oneself with including wire one end and has strain insulator string, wire both ends are had strain insulator string to ally oneself with.
In one embodiment, as shown in FIG. 2, a schematic diagram of a strain insulator string connected to one end of a lead is shown, and as shown in FIG. 3, a schematic diagram of a strain insulator string connected to two ends of a lead is shown, wherein 1 is a strain insulator string, 2 is a lead with a strain insulator string connected to two ends, and 3 is a lead without a strain insulator stringA is the high-gear wire engaging point of the operating gear, B is the low-gear wire engaging point of the operating gear, f s The conductor sag is when the strain insulator string is connected. The biggest arc of wire hangs down when having strain insulator string is connected to the biggest arc of wire when having strain insulator string according to the biggest arc of wire when not having the strain insulator string of connecting, include: calculating the maximum sag of the lead when the strain insulator string is connected at one end according to the maximum sag of the lead when the strain insulator string is not connected; or/and calculating the maximum sag of the lead when the strain insulator string is connected at the two ends according to the maximum sag of the lead when the strain insulator string is not connected.
And 108, calculating the clearance distance between the lead and the spanning object when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is connected.
Wherein, the clearance distance between the wire and the spanning object refers to the distance from the highest point of the spanning object to the wire suspension curve. The clearance between the conductor and the spanning object comprises clearance when the spanning object is close to the lower side of the conductor hanging point and clearance when the spanning object is close to the upper side of the conductor hanging point.
In one embodiment, calculating the clearance distance between the conductor and the spanning object when the strain insulator string is connected according to the maximum sag of the conductor when the strain insulator string is connected comprises: and calculating the clearance distance between the lead connected with the strain insulator string and the spanning object when the spanning object is close to the high side of the lead hanging point, or/and calculating the clearance distance between the lead connected with the strain insulator string and the spanning object when the spanning object is close to the high side of the lead hanging point.
And 110, carrying out overhead transmission line tightening construction design according to the clearance distance between the lead and the spanning object.
If the height of the wire is kept above the safe clearance distance between the wire and the spanning object when the tension does not exceed the rated load of the wire tightening tool, the safety requirement is met, and the construction of the overhead power transmission line can be carried out. If the height of the lead is kept below the safe clearance distance between the lead and the spanning object when the tension of the lead does not exceed the rated load of the wire tightening tool, the safety requirement is not met, the construction of the overhead transmission line cannot be carried out, and the problems can be solved by reducing the height of the spanning object, increasing the tension of the lead, increasing the number of leads connected with the strain insulator string and the like until the distance between the lead and the spanning object meets the requirement. And finally, carrying out related wire tightening construction design according to the parameters meeting the requirements.
The invention provides a method for designing overhead transmission line tightening construction, which comprises the steps of obtaining parameter data required by calculating the maximum sag of a lead; calculating the maximum sag of the lead when the strain insulator string is not connected according to the parameter data; calculating the maximum sag of the lead when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is not connected; calculating the clearance distance between the lead and a spanning object when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is connected; and carrying out overhead transmission line tightening construction design according to the clearance between the lead and the spanning object. According to the invention, when the clearance value between the wire and the spanning object under the preset wire tension value is calculated, the condition that the wire is connected with the strain insulator string is considered, so that the calculation error is greatly reduced, and the construction safety is improved.
In one embodiment, calculating the maximum sag of the wire when the strain insulator string is connected according to the maximum sag of the wire when the strain insulator string is not connected comprises the following steps: obtaining a formula for calculating the maximum sag of the lead when the strain insulator string is connected; according to the maximum arc of the wire when not having the strain insulator string and the maximum arc of the wire when having the strain insulator string, the maximum arc of the wire when having the strain insulator string is calculated and obtained, the formula includes:
when one end is connected with a strain insulator string, the maximum sag formula of the lead is as follows:
when the two ends are connected with the strain insulator strings, the maximum sag formula of the lead is as follows:
further, in this embodiment, the formula of the maximum sag of the wire when the strain insulator string is not connected is:
when the horizontal tension of the lead is equal to that of the lead without the tension insulator string when the tension insulator string is connected at one end, the horizontal tension H of the lead can be obtained when the tension insulator string is connected at one end 1 Maximum sag f of wire when strain insulator string is connected with one end s1 The relation of (A) is as follows,
understandably, the horizontal tension H of the lead can be obtained when the two ends of the lead are connected with the strain insulator strings 2 Maximum sag f of lead when strain insulator strings are connected with two ends s2 The relation of (A) is as follows,
wherein,
ω 0 the dead weight of the strain insulator string in unit length is equivalent to the dead weight, and means the dead weight of the strain insulator string in unit length is divided by the number of the conducting wires operated simultaneously. G is the dead weight of the strain insulator string and comprises the dead weight of the strain insulator string and the weight of the matched connecting hardware fitting. x is the number of conductor splits in the process of tightening the cable at the same time, lambda is the length of the tension insulator string,
is the height difference angle of the wire engaging point of the operating gear, l is the gear span of the operating gear, omega is the dead weight of the wire in unit length, f 0 Sag of wire if there is no strain insulator string attached, f s1 The maximum sag, f, of the conductor when one end is connected with a strain insulator string s2 The maximum sag of the lead is realized when the two ends are connected with the strain insulator strings.
In one embodiment, the method for calculating the clearance distance between the conductor and the spanning object when the strain insulator string is connected according to the maximum sag of the conductor when the strain insulator string is connected further comprises the following steps: acquiring a calculation formula of the sag of any point of the lead when the strain insulator string is connected; calculating the maximum sag of the wire when the strain insulator string is connected according to the calculation formula of the optional sag of the wire when the strain insulator string is connected and the calculation formula of the maximum sag of the wire when the strain insulator string is connected to obtain the optional sag of the wire; and calculating the clearance distance between the lead and the spanning object when the strain insulator string is connected according to the arbitrary point sag.
Wherein, when connecting with strain insulator string, the calculation formula of the sag of any point of the wire is as follows:
specifically, when the span is close to the low side of the wire hanging point, as shown in fig. 4, there is the equation:
substituting the calculation formula of the arc sag of any point of the wire when the strain insulator string is connected into the equation to obtain: the formula of the clearance between the wire with the end connected with the strain insulator string and the spanning object is as follows:
further, when the span is close to the high side of the wire hang, as shown in fig. 5, there is the equation:
substituting the calculation formula of the sag of any point of the wire when the strain insulator string is connected into the equation to obtain: the formula of the clearance between the wire with the end connected with the strain insulator string and the spanning object is as follows:
wherein N is the vertical distance between the spanning object and the hanging point of the adjacent tower, N is the horizontal distance between the spanning object and the adjacent tower,
the height difference angle of the wire hanging point of the operating gear, the gear distance of the operating gear, the clearance distance between the wire of the strain insulator string and the spanning object, and f s The maximum sag of the lead is when the strain insulator string is connected.
In one embodiment, the clearance between the lead and the spanning object comprises the clearance when the spanning object is close to the lower side of the lead hanging point, and the calculation of the clearance between the lead and the spanning object when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is connected comprises the following steps: obtaining a formula for calculating the clearance distance between the conductor connected with the strain insulator string and the spanning object when the spanning object is close to the low side of the conductor hanging point; according to the formula of the clearance distance between the conductor connected with the strain insulator string and the spanning object when the spanning object is close to the low side of the conductor hanging point and the maximum sag of the conductor connected with the strain insulator string, the clearance distance between the conductor connected with the strain insulator string and the spanning object when the spanning object is close to the low side of the conductor hanging point is calculated, and the formula comprises the following steps:
when the spanning object is close to the low side of the wire hanging point, the formula of the clearance between the wire with the tension insulator string connected to one end and the spanning object is as follows:
when the spanning object is close to the low side of the wire hanging point, the formula of the clearance between the wire with the strain insulator string at the two ends and the spanning object is as follows:
furthermore, in this embodiment, a tension insulator is connected to one end of the insulatorHorizontal tension H of time-sharing conducting wire 1 Maximum sag f of wire when strain insulator string is connected with one end s1 The relation of (A) is as follows:
the formula of the clearance distance between the conductor with the strain insulator string connected to one end and the spanning object is combined, and the formula of the clearance distance between the conductor with the strain insulator string connected to the final end and the spanning object is as follows:
furthermore, in the embodiment, when the two ends are connected with the strain insulator strings, the horizontal tension H of the lead is generated 2 Maximum sag f of lead when strain insulator string is connected with two ends s2 The relation of (A) is as follows,
the formula of the clearance between the lead with the strain insulator string connected at the two ends and the spanning object is combined to obtain the formula, and the formula of the clearance between the lead with the strain insulator string connected at the two ends and the spanning object is as follows:
wherein N is the vertical distance between the spanning object and the hanging point of the adjacent tower, N is the horizontal distance between the spanning object and the adjacent tower,
for the operating gear wire contact point height difference angle, l for the operating gear span, H 1 Horizontal tension of the wire when a tension insulator string is connected to one end, H 2 Horizontal tension of the wire when strain insulator strings are connected to both ends, f s1 When a tension insulator string is connected to one endMaximum sag of wire, f s2 The maximum sag y of the lead when the two ends are connected with the strain insulator string 1 The clearance between the conductor with a tension insulator string connected to one end of the conductor and the spanning object when the spanning object is close to the low side of the conductor hanging point, y 2 The clearance between the conductor with the strain insulator string connected at both ends and the spanning object is provided when the spanning object is close to the lower side of the conductor hanging point.
In one embodiment, the clearance between the lead and the spanning object further comprises the clearance when the spanning object is close to the high side of the lead hanging point, and the step of calculating the clearance between the lead and the spanning object when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is connected comprises the following steps: acquiring a formula for calculating the clearance distance between the crossing object and the lead connected with the strain insulator string when the crossing object is close to the high side of the lead hanging point; according to the formula of the clearance distance between the conductor connected with the strain insulator string and the spanning object when the maximum sag of the conductor is connected with the strain insulator string and the spanning object is close to the high side of the conductor hanging point, the clearance distance between the conductor connected with the strain insulator string and the spanning object when the spanning object is close to the high side of the conductor hanging point is calculated, and the formula comprises:
the formula of the clearance between the wire with the strain insulator string connected to one end of the spanning object when the spanning object is close to the high side of the wire hanging point and the spanning object is as follows:
the formula of the clearance between the wire with the strain insulator string connected at the two ends when the spanning object is close to the high side of the wire hanging point and the spanning object is as follows:
furthermore, in the embodiment, when one end of the tension insulator string is connected with the tension insulator string, the horizontal tension H of the lead is 1 Maximum sag f of wire when strain insulator string is connected with one end s1 The relation of (A) is as follows:
the formula of the clearance between the lead with the tension insulator string connected to one end and the spanning object is combined to obtain the formula, and the formula of the clearance between the lead with the tension insulator string connected to the final end and the spanning object is as follows:
furthermore, in the embodiment, when the two ends are connected with the strain insulator strings, the horizontal tension H of the lead is generated 2 Maximum sag f of lead when strain insulator strings are connected with two ends s2 The relation of (A) is as follows,
the formula of the clearance between the conductor with the strain insulator string connected at the two ends and the spanning object is combined to obtain:
wherein N is the vertical distance between the spanning object and the hanging point of the adjacent tower, N is the horizontal distance between the spanning object and the adjacent tower,
for the operating gear wire contact point height difference angle, l for the operating gear span, H 1 Horizontal tension of the wire when a tension insulator string is connected to one end, H 2 Horizontal tension of the wire when strain insulator strings are connected to both ends, f s1 Maximum sag, f, of the conductor when a strain insulator string is attached to one end s2 The maximum sag y of the lead when the two ends are connected with the strain insulator string 3 The clearance distance between the crossing object and the lead with a strain insulator string at one end when the crossing object is close to the high side of the lead hanging point, y 4 The clearance distance between the conductor with the strain insulator string connected at the two ends and the spanning object is kept when the spanning object is close to the high side of the conductor hanging point.
As shown in fig. 6, the present invention provides a wire tightening construction design device for an overhead transmission line, the device includes:
an obtaining module 602, configured to obtain parameter data required for calculating a maximum sag of a wire;
the first calculation module 604 is used for calculating the maximum sag of the wire when the strain insulator string is not connected according to the parameter data;
the second calculating module 606 is used for calculating the maximum sag of the lead when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is not connected;
the third calculation module 608 is configured to calculate a clearance between the wire and the spanning object when the strain insulator string is connected according to the maximum sag of the wire when the strain insulator string is connected;
and the design module 610 is used for performing overhead transmission line tightening construction design according to the clearance between the lead and the spanning object.
As shown in FIG. 7, in one embodiment an internal block diagram of a computer device is provided. The computer equipment can be an overhead transmission line stringing construction design device, or a terminal or a server connected with the overhead transmission line stringing construction design device. As shown in fig. 7, the computer device includes a processor, a memory, and a network interface connected by a system bus. Wherein the memory includes a non-volatile storage medium and an internal memory. The nonvolatile storage medium of the computer device stores an operating system and also stores a computer program, and when the computer program is executed by a processor, the computer program can enable the processor to realize the overhead transmission line tight construction design method. The internal memory may also store a computer program, and the computer program, when executed by the processor, may cause the processor to perform a method of overhead transmission line stringing construction design. The network interface is used for communicating with an external device. Those skilled in the art will appreciate that the architecture shown in fig. 7 is merely a block diagram of some of the structures associated with the disclosed aspects and is not intended to limit the computing devices to which the disclosed aspects apply, as particular computing devices may include more or less components than those shown, or may combine certain components, or have a different arrangement of components.
In one embodiment, the overhead transmission line tight construction design method provided by the present application can be implemented in the form of a computer program, and the computer program can be executed on a computer device as shown in fig. 7. The memory of the computer equipment can store various program templates forming the overhead transmission line stringing construction design device. For example, the obtaining module 602, the first calculating module 604, the second calculating module 606, the third calculating module 608, and the designing module 610.
A terminal comprising a memory and a processor, the memory storing a computer program that, when executed by the processor, causes the processor to perform the steps of: acquiring parameter data required for calculating the maximum sag of the wire; calculating the maximum sag of the lead when the strain insulator string is not connected according to the parameter data; calculating the maximum sag of the lead when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is not connected; calculating the clearance distance between the lead and a spanning object when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is connected; and carrying out overhead transmission line tightening construction design according to the clearance between the lead and the spanning object.
In one embodiment, calculating the maximum sag of the wire when the strain insulator string is connected according to the maximum sag of the wire when the strain insulator string is not connected comprises the following steps: calculating the maximum sag of the lead when the strain insulator string is connected at one end according to the maximum sag of the lead when the strain insulator string is not connected; and/or calculating the maximum sag of the lead when the strain insulator string is connected at two ends according to the maximum sag of the lead when the strain insulator string is not connected.
In one embodiment, the parameter data includes an operating range wire-hang-point differential angle, an operating range span, a wire deadweight per unit length, and a wire lowest point horizontal tension. The maximum sag of the wire when the strain insulator string is not connected is calculated according to the parameter data, and the method comprises the following steps: obtaining a formula for calculating the maximum sag of the lead when the strain insulator string is not connected; calculating to obtain the maximum sag of the wire when the strain insulator string is not connected according to the parameter data and a formula of the maximum sag of the wire when the strain insulator string is not connected, wherein the formula is as follows:
wherein f is 0 The arc of the lead is vertical when no tension insulator string is connected,
the height difference angle of the wire hanging point of the operating gear, the gear span of the operating gear, the dead weight of the wire in unit length, and the horizontal tension of the lowest point of the wire are respectively represented by I, omega and H.
In one embodiment, calculating the maximum sag of the lead with the strain insulator string according to the maximum sag of the lead without the strain insulator string, comprises: obtaining a formula for calculating the maximum sag of the lead when the strain insulator string is connected; according to the formula that the maximum arc of the wire hangs down when not having the strain insulator string and the maximum arc of the wire hangs down when having the strain insulator string, the maximum arc of the wire hangs down when having the strain insulator string is calculated and obtained, the formula includes:
when one end is connected with a strain insulator string, the maximum sag formula of the lead is as follows:
when the two ends are connected with the strain insulator strings, the maximum sag formula of the lead is as follows:
wherein,
ω 0 is the equivalent dead weight of the unit length of the strain insulator string, G is the dead weight of the strain insulator string, x is the number of split conductors of each phase, and lambda is the length of the strain insulator string,
the height difference angle of the wire engaging point of the operating gear, i is the gear span of the operating gear, omega is the dead weight of the wire in unit length, f 0 Sag of wire if there is no strain insulator string attached, f s1 Maximum sag, f, of the conductor when a strain insulator string is attached to one end s2 The maximum sag of the lead is realized when the two ends are connected with the strain insulator strings.
In one embodiment, the method for calculating the clearance distance between the conductor and the spanning object when the strain insulator string is connected according to the maximum sag of the conductor when the strain insulator string is connected further comprises the following steps: acquiring a calculation formula of the sag of any point of the lead when the strain insulator string is connected; calculating the maximum sag of the wire when the strain insulator string is connected according to the calculation formula of the optional sag of the wire when the strain insulator string is connected and the calculation formula of the maximum sag of the wire when the strain insulator string is connected to obtain the optional sag of the wire; and calculating the clearance distance between the lead and the spanning object when the strain insulator string is connected according to the arbitrary point sag.
In one embodiment, the clearance between the lead and the spanning object comprises the clearance when the spanning object is close to the low side of the lead hanging point, and the clearance between the lead and the spanning object when the strain insulator string is connected is calculated according to the maximum sag of the lead when the strain insulator string is connected, and the method comprises the following steps: obtaining a formula for calculating the clearance distance between the conductor connected with the strain insulator string and the spanning object when the spanning object is close to the low side of the conductor hanging point; calculating the clearance distance between the conductor connected with the strain insulator string and the spanning object when the spanning object is close to the low side of the conductor hanging point according to the formula of the maximum sag of the conductor connected with the strain insulator string and the clearance distance between the conductor connected with the strain insulator string and the spanning object when the spanning object is close to the low side of the conductor hanging point, wherein the formula comprises the following steps:
when the spanning object is close to the low side of the wire hanging point, the clearance distance between the wire with the strain insulator string connected to one end of the spanning object and the spanning object is expressed by the following formula:
when the spanning object is close to the low side of the wire hanging point, the clearance between the wire with the strain insulator string connected at the two ends and the spanning object is represented by the following formula:
wherein N is the vertical distance between the spanning object and the hanging point of the adjacent tower, N is the horizontal distance between the spanning object and the adjacent tower,
for the operating gear wire contact point height difference angle, for the operating gear span, f s1 Maximum sag, f, of the conductor when a strain insulator string is attached to one end s2 The maximum sag y of the lead when the two ends are connected with the strain insulator string 1 The clearance between the conductor with a tension insulator string connected to one end of the conductor and the spanning object when the spanning object is close to the low side of the conductor hanging point, y 2 The clearance between the conductor with the strain insulator string connected at both ends and the spanning object is provided when the spanning object is close to the lower side of the conductor hanging point.
In one embodiment, the clearance between the lead and the spanning object further comprises the clearance when the spanning object is close to the high side of the lead hanging point, and the clearance between the lead and the spanning object when the strain insulator string is connected is calculated according to the maximum sag of the lead when the strain insulator string is connected, and the method comprises the following steps: obtaining a formula for calculating the clearance distance between the wire connected with the strain insulator string and the spanning object when the spanning object is close to the high side of the wire hanging point; according to the formula of the clearance distance between the conductor connected with the strain insulator string when the strain insulator string is connected with the spanning object and the conductor connected with the strain insulator string when the spanning object is close to the high side of the conductor hanging point and the spanning object, the clearance distance between the conductor connected with the strain insulator string when the spanning object is close to the high side of the conductor hanging point and the spanning object is calculated, and the formula comprises the following steps:
the formula of the clearance between the wire with the strain insulator string connected to one end of the spanning object when the spanning object is close to the high side of the wire hanging point and the spanning object is as follows:
the formula of the clearance between the wire with the strain insulator string connected at the two ends when the spanning object is close to the high side of the wire hanging point and the spanning object is as follows:
wherein N is the vertical distance between the spanning object and the adjacent tower hanging point, N is the horizontal distance between the spanning object and the adjacent tower,
for the operating gear wire contact point height difference angle, for the operating gear span, f s1 Maximum sag, f, of the conductor when a strain insulator string is attached to one end s2 The maximum sag y of the lead when the two ends are connected with the strain insulator string 3 The clearance distance between the conductor with the strain insulator string connected to one end of the spanning object and the spanning object when the spanning object is close to the high side of the conductor hanging point, y 4 The clearance distance between the conductor with the strain insulator string connected at the two ends and the spanning object is kept when the spanning object is close to the high side of the conductor hanging point.
A computer-readable storage medium storing a computer program which, when executed by a processor, causes the processor to perform the steps of: acquiring parameter data required for calculating the maximum sag of the wire; calculating the maximum sag of the lead when the strain insulator string is not connected according to the parameter data; calculating the maximum sag of the lead when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is not connected; calculating the clearance distance between the lead and a spanning object when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is connected; and carrying out overhead transmission line tightening construction design according to the clearance between the lead and the spanning object.
In one embodiment, calculating the maximum sag of the lead with the strain insulator string according to the maximum sag of the lead without the strain insulator string, comprises: calculating the maximum sag of the lead when the strain insulator string is connected at one end according to the maximum sag of the lead when the strain insulator string is not connected; and/or calculating the maximum sag of the lead when the strain insulator string is connected at two ends according to the maximum sag of the lead when the strain insulator string is not connected.
In one embodiment, the parameter data includes an operating range wire-hang-point differential angle, an operating range span, a wire deadweight per unit length, and a wire lowest point horizontal tension. The maximum sag of the wire when the strain insulator string is not connected is calculated according to the parameter data, and the method comprises the following steps: obtaining a formula for calculating the maximum sag of the lead when the strain insulator string is not connected; calculating according to the parameter data and a formula of the maximum sag of the wire when the strain insulator string is not connected to the wire to obtain the maximum sag of the wire when the strain insulator string is not connected to the wire, wherein the formula is as follows:
wherein, f 0 The arc of the lead is vertical when no tension insulator string is connected,
the height difference angle of the wire hanging point of the operating gear, l is the gear span of the operating gear, omega is the dead weight of the wire in unit length, and H is the horizontal tension of the lowest point of the wire.
In one embodiment, calculating the maximum sag of the wire when the strain insulator string is connected according to the maximum sag of the wire when the strain insulator string is not connected comprises the following steps: obtaining a formula for calculating the maximum sag of the lead when the strain insulator string is connected; according to the formula that the maximum arc of the wire hangs down when not having the strain insulator string and the maximum arc of the wire hangs down when having the strain insulator string, the maximum arc of the wire hangs down when having the strain insulator string is calculated and obtained, the formula includes:
when one end is connected with a strain insulator string, the maximum sag formula of the lead is as follows:
when the two ends are connected with the strain insulator strings, the maximum sag formula of the lead is as follows:
wherein,
ω 0 is the equivalent dead weight of the unit length of the strain insulator string, G is the dead weight of the strain insulator string, x is the number of split conductors of each phase, and lambda is the length of the strain insulator string,
the height difference angle of the wire engaging point of the operating gear, i is the gear span of the operating gear, omega is the dead weight of the wire in unit length, f 0 Sag, f, of conductor when there is no strain insulator string attached s1 Maximum sag, f, of the conductor when a strain insulator string is attached to one end s2 The maximum sag of the lead is realized when the two ends are connected with the strain insulator strings.
In one embodiment, the method for calculating the clearance distance between the conductor and the spanning object when the strain insulator string is connected according to the maximum sag of the conductor when the strain insulator string is connected further comprises the following steps: acquiring a calculation formula of the sag of any point of the lead when the strain insulator string is connected; calculating the maximum sag of the wire when the strain insulator string is connected according to the calculation formula of the optional sag of the wire when the strain insulator string is connected and the calculation formula of the maximum sag of the wire when the strain insulator string is connected to obtain the optional sag of the wire; and calculating the clearance distance between the lead and the spanning object when the strain insulator string is connected according to the arbitrary point sag.
In one embodiment, the clearance between the lead and the spanning object comprises the clearance when the spanning object is close to the low side of the lead hanging point, and the clearance between the lead and the spanning object when the strain insulator string is connected is calculated according to the maximum sag of the lead when the strain insulator string is connected, and the method comprises the following steps: obtaining a formula for calculating the clearance distance between the spanning object and the wire connected with the strain insulator string when the spanning object is close to the low side of the wire hanging point; calculating the clearance distance between the conductor connected with the strain insulator string and the spanning object when the spanning object is close to the low side of the conductor hanging point according to the formula of the maximum sag of the conductor connected with the strain insulator string and the clearance distance between the conductor connected with the strain insulator string and the spanning object when the spanning object is close to the low side of the conductor hanging point, wherein the formula comprises the following steps:
when the spanning object is close to the low side of the wire hanging point, the clearance distance between the wire with the strain insulator string connected to one end of the spanning object and the spanning object is expressed by the following formula:
when the spanning object is close to the low side of the wire hanging point, the clearance between the wire with the strain insulator string connected at the two ends and the spanning object is represented by the following formula:
wherein N is the vertical distance between the spanning object and the hanging point of the adjacent tower, N is the horizontal distance between the spanning object and the adjacent tower,
for the operating gear wire contact point height difference angle, for the operating gear span, f s1 Maximum sag, f, of the conductor when a strain insulator string is attached to one end s2 The maximum sag y of the lead when the two ends are connected with the strain insulator string 1 The clearance between the conductor with a tension insulator string connected to one end of the conductor and the spanning object when the spanning object is close to the low side of the conductor hanging point, y 2 The clearance between the conductor with the strain insulator string connected at both ends and the spanning object is provided when the spanning object is close to the lower side of the conductor hanging point.
In one embodiment, the clearance between the lead and the spanning object further comprises the clearance when the spanning object is close to the high side of the lead hanging point, and the clearance between the lead and the spanning object when the strain insulator string is connected is calculated according to the maximum sag of the lead when the strain insulator string is connected, and the method comprises the following steps: obtaining a formula for calculating the clearance distance between the wire connected with the strain insulator string and the spanning object when the spanning object is close to the high side of the wire hanging point; according to the formula of the clearance distance between the conductor connected with the strain insulator string when the strain insulator string is connected with the spanning object and the conductor connected with the strain insulator string when the spanning object is close to the high side of the conductor hanging point and the spanning object, the clearance distance between the conductor connected with the strain insulator string when the spanning object is close to the high side of the conductor hanging point and the spanning object is calculated, and the formula comprises the following steps:
the formula of the clearance between the wire with the strain insulator string connected to one end of the spanning object when the spanning object is close to the high side of the wire hanging point and the spanning object is as follows:
the formula of the clearance between the wire with the strain insulator string connected at the two ends when the spanning object is close to the high side of the wire hanging point and the spanning object is as follows:
wherein N is the vertical distance between the spanning object and the adjacent tower hanging point, N is the horizontal distance between the spanning object and the adjacent tower,
for the operating gear wire contact point height difference angle, for the operating gear span, f s1 The maximum sag, f, of the conductor when one end is connected with a strain insulator string s2 The maximum sag y of the lead when the two ends are connected with the strain insulator string 3 The clearance distance between the conductor with the strain insulator string connected to one end of the spanning object and the spanning object when the spanning object is close to the high side of the conductor hanging point, y 4 The clearance distance between the conductor with the strain insulator string connected at the two ends and the spanning object is kept when the spanning object is close to the high side of the conductor hanging point.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a non-volatile computer-readable storage medium, and can include the processes of the embodiments of the methods described above when executed. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
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 express several embodiments of the present application, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent application shall be subject to the appended claims.
Claims (8)
1. A method for designing overhead transmission line stringing construction is characterized by comprising the following steps:
acquiring parameter data required for calculating the maximum sag of the wire;
calculating the maximum sag of the lead when the strain insulator string is not connected according to the parameter data;
calculating the maximum sag of the lead when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is not connected;
calculating the clearance distance between the lead and a spanning object when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is connected; the clearance between the lead and the spanning object comprises the clearance when the spanning object is close to the low side of the lead hanging point, and the clearance between the lead and the spanning object when the strain insulator string is connected is calculated according to the maximum sag of the lead when the strain insulator string is connected, and the method comprises the following steps: obtaining a formula for calculating the clearance distance between the conductor connected with the strain insulator string and the spanning object when the spanning object is close to the low side of the conductor hanging point; calculating the clearance distance between the conductor connected with the strain insulator string and the spanning object when the spanning object is close to the low side of the conductor hanging point according to the formula of the maximum sag of the conductor connected with the strain insulator string and the clearance distance between the conductor connected with the strain insulator string and the spanning object when the spanning object is close to the low side of the conductor hanging point, wherein the formula comprises the following steps: when the spanning object is close to the low side of the wire hanging point, the formula of the clearance distance between the wire with the strain insulator string at one end and the spanning object is as follows:
when the spanning object is close to the low side of the wire hanging point, the clearance between the wire with the strain insulator string connected at the two ends and the spanning object is represented by the following formula:
wherein N is the vertical distance between the spanning object and the hanging point of the adjacent tower, N is the horizontal distance between the spanning object and the adjacent tower,
for the operating gear wire contact point height difference angle, for the operating gear span, f s1 Maximum sag, f, of the conductor when a strain insulator string is attached to one end s2 The maximum sag y of the lead when the two ends are connected with the strain insulator string 1 The clearance between the conductor with a tension insulator string connected to one end of the conductor and the spanning object when the spanning object is close to the low side of the conductor hanging point, y 2 The clearance distance between the spanning object and the lead with the strain insulator string at the two ends when the spanning object is close to the low side of the lead hanging point;
the clearance of wire and span thing still includes the clearance when the span thing is close to the wire hang point high side, according to the clearance of wire and span thing when having strain insulator string is calculated to the biggest arc of wire when having strain insulator string to the company, include: obtaining a formula for calculating the clearance distance between the wire connected with the strain insulator string and the spanning object when the spanning object is close to the high side of the wire hanging point; according to the formula of the clearance distance between the conductor connected with the strain insulator string when the strain insulator string is connected with the spanning object and the conductor connected with the strain insulator string when the spanning object is close to the high side of the conductor hanging point and the spanning object, the clearance distance between the conductor connected with the strain insulator string when the spanning object is close to the high side of the conductor hanging point and the spanning object is calculated, and the formula comprises the following steps: the formula of the clearance between the wire with the strain insulator string connected to one end of the spanning object when the spanning object is close to the high side of the wire hanging point and the spanning object is as follows:
the formula of the clearance between the wire with the strain insulator string connected at the two ends when the spanning object is close to the high side of the wire hanging point and the spanning object is as follows:
wherein N is the vertical distance between the spanning object and the hanging point of the adjacent tower, N is the horizontal distance between the spanning object and the adjacent tower,
for the operating gear wire contact point height difference angle, for the operating gear span, f s1 Maximum sag, f, of the conductor when a strain insulator string is attached to one end s2 The maximum sag y of the lead when the two ends are connected with the strain insulator string 3 The clearance distance between the conductor with the strain insulator string connected to one end of the spanning object and the spanning object when the spanning object is close to the high side of the conductor hanging point, y 4 Clearance between the conductor with strain insulator string at both ends when the spanning object is close to the high side of the conductor hanging point and the spanning objectA distance;
and carrying out overhead transmission line tightening construction design according to the clearance between the lead and the spanning object.
2. The method of claim 1, wherein calculating the maximum sag of the wire when the strain insulator string is connected according to the maximum sag of the wire when the strain insulator string is not connected comprises:
calculating the maximum sag of the lead when the strain insulator string is connected at one end according to the maximum sag of the lead when the strain insulator string is not connected;
and/or calculating the maximum sag of the lead when the strain insulator string is connected at two ends according to the maximum sag of the lead when the strain insulator string is not connected.
3. The method of claim 1, wherein the parameter data includes an operating range wire-hang-point differential angle, an operating range span, a wire deadweight per unit length, a wire lowest point horizontal tension;
the calculation of the maximum sag of the wire when the strain insulator string is not connected according to the parameter data comprises the following steps:
obtaining a formula for calculating the maximum sag of the lead when the strain insulator string is not connected;
calculating according to the parameter data and a formula of the maximum sag of the wire when the strain insulator string is not connected to the wire to obtain the maximum sag of the wire when the strain insulator string is not connected to the wire, wherein the formula is as follows:
wherein f is 0 The arc of the lead is vertical when no tension insulator string is connected,
the height difference angle of the wire hanging point of the operating gear, the gear span of the operating gear, the dead weight of the wire in unit length, and the horizontal tension of the lowest point of the wire are respectively represented by I, omega and H.
4. The method of claim 1, wherein calculating the maximum sag of the conductor when the strain insulator string is connected according to the maximum sag of the conductor when the strain insulator string is not connected comprises:
obtaining a formula for calculating the maximum sag of the lead when the strain insulator string is connected;
according to the formula that the maximum arc of the wire hangs down when not having the strain insulator string and the maximum arc of the wire hangs down when having the strain insulator string, the maximum arc of the wire hangs down when having the strain insulator string is calculated and obtained, the formula includes:
when one end is connected with a strain insulator string, the maximum sag formula of the lead is as follows:
when the two ends are connected with the strain insulator strings, the maximum sag formula of the lead is as follows:
wherein,
ω 0 is the equivalent dead weight of the unit length of the strain insulator string, G is the dead weight of the strain insulator string, x is the number of split conductors of each phase, and lambda is the length of the strain insulator string,
is the height difference angle of the wire engaging point of the operating gear, l is the gear span of the operating gear, omega is the dead weight of the wire in unit length, f 0 Sag of wire if there is no strain insulator string attached, f s1 Maximum sag, f, of the conductor when a strain insulator string is attached to one end s2 The maximum sag of the lead when the two ends are connected with the strain insulator strings.
5. The method of claim 1, wherein calculating the clearance distance between the conductor and the spanning object when the strain insulator string is connected according to the maximum sag of the conductor when the strain insulator string is connected further comprises:
acquiring a calculation formula of the sag of any point of the lead when the strain insulator string is connected;
calculating the maximum sag of the wire when the strain insulator string is connected according to the calculation formula of the optional sag of the wire when the strain insulator string is connected and the calculation formula of the maximum sag of the wire when the strain insulator string is connected to obtain the optional sag of the wire;
and calculating the clearance distance between the lead and the spanning object when the strain insulator string is connected according to the arbitrary point sag.
6. The utility model provides an overhead transmission line construction design device that tightens wire which characterized in that, the device includes:
the acquisition module is used for acquiring parameter data required by calculating the maximum sag of the wire;
the first calculation module is used for calculating the maximum sag of the wire when the strain insulator string is not connected according to the parameter data;
the second calculation module is used for calculating the maximum sag of the lead when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is not connected;
the third calculation module is used for calculating the clearance distance between the lead and a spanning object when the strain insulator string is connected according to the maximum sag of the lead when the strain insulator string is connected; the clearance between the lead and the spanning object comprises the clearance when the spanning object is close to the low side of the lead hanging point, and the clearance between the lead and the spanning object when the strain insulator string is connected is calculated according to the maximum sag of the lead when the strain insulator string is connected, and the method comprises the following steps: obtaining a formula for calculating the clearance distance between the spanning object and the wire connected with the strain insulator string when the spanning object is close to the low side of the wire hanging point; according to the formula of the clearance distance between the conductor connected with the strain insulator string and the spanning object when the spanning object is close to the low side of the conductor hanging point, calculating the clearance distance between the conductor connected with the strain insulator string and the spanning object when the spanning object is close to the low side of the conductor hanging point, wherein the formula comprises the following steps: when the spanning object is close to the low side of the wire hanging point, the clearance distance between the wire with the strain insulator string connected to one end of the spanning object and the spanning object is expressed by the following formula:
when the spanning object is close to the low side of the wire hanging point, the clearance between the wire with the strain insulator string connected at the two ends and the spanning object is represented by the following formula:
wherein N is the vertical distance between the spanning object and the hanging point of the adjacent tower, N is the horizontal distance between the spanning object and the adjacent tower,
for the operating gear wire contact point height difference angle, for the operating gear span, f s1 Maximum sag, f, of the conductor when a strain insulator string is attached to one end s2 The maximum sag y of the lead when the two ends are connected with the strain insulator string 1 The clearance between the conductor with a tension insulator string connected to one end of the conductor and the spanning object when the spanning object is close to the low side of the conductor hanging point, y 2 The clearance distance between the conductor with the strain insulator string connected at the two ends and the spanning object is set when the spanning object is close to the low side of the conductor hanging point;
the clearance of wire and span thing still includes the clearance when the span thing is close to the wire hang point high side, according to the clearance of wire and span thing when having strain insulator string is calculated to the biggest arc of wire when having strain insulator string to the company, include: obtaining a formula for calculating the clearance distance between the wire connected with the strain insulator string and the spanning object when the spanning object is close to the high side of the wire hanging point; according to the formula of the clearance distance between the conductor connected with the strain insulator string when the strain insulator string is connected with the spanning object and the conductor connected with the strain insulator string when the spanning object is close to the high side of the conductor hanging point and the spanning object, the clearance distance between the conductor connected with the strain insulator string when the spanning object is close to the high side of the conductor hanging point and the spanning object is calculated, and the formula comprises the following steps: the formula of the clearance between the wire with the strain insulator string connected to one end of the spanning object when the spanning object is close to the high side of the wire hanging point and the spanning object is as follows:
the formula of the clearance between the wire with the strain insulator string connected at the two ends when the spanning object is close to the high side of the wire hanging point and the spanning object is as follows:
wherein N is the vertical distance between the spanning object and the hanging point of the adjacent tower, N is the horizontal distance between the spanning object and the adjacent tower,
is the operating gear lead engagement point height difference angle, l is the operating gear span, f s1 Maximum sag, f, of the conductor when a strain insulator string is attached to one end s2 The maximum sag y of the lead when the two ends are connected with the strain insulator string 3 The clearance distance between the crossing object and the lead with a strain insulator string at one end when the crossing object is close to the high side of the lead hanging point, y 4 The clearance distance between the conductor with the strain insulator string connected at the two ends and the spanning object is set when the spanning object is close to the high side of the conductor hanging point;
and the design module is used for carrying out overhead transmission line tightening construction design according to the clearance distance between the lead and the spanning object.
7. A terminal comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to carry out the steps of the method according to any one of claims 1 to 5.
8. A computer-readable storage medium, storing a computer program which, when executed by a processor, causes the processor to carry out the steps of the method according to any one of claims 1 to 5.
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