Self-made heat-conducting ground wire structure design method based on setting parameters

Abstract

The application discloses a self-made heat-conducting ground wire structure design method based on setting parameters. The method is used for self-made heat-conducting ground wire structure design and material selection of a structure containing an inner conductor and an outer conductor, and mainly comprises the following steps: obtaining setting parameters, the setting parameters including one of an inner conductor maximum resistance and an inner conductor minimum resistance, one of an outer conductor maximum resistance and an outer conductor minimum resistance, and a minimum tensile force; matching calculation rules according to the setting parameters; determining design parameters of the ground wire according to the calculation rules, the design parameters including inner conductor design parameters and outer conductor design parameters, and the design parameters further including material selection and structure design of the inner conductor and the outer conductor. Therefore, the application can determine the inner conductor design parameters and the outer conductor design parameters of the self-made heat-conducting ground wire containing the inner conductor and the outer conductor structure according to the setting parameters and the preset calculation rules, thereby providing a reliable basis for self-made heat-conducting ground wire production.

Description

Technical Field

[0001] This application belongs to the field of wire manufacturing technology, and in particular relates to a self-made thermally conductive ground wire structure design method based on set parameters. Background Technology

[0002] Snow and ice weather can cause power transmission line disasters such as line breaks and tower collapses, directly affecting the safe and stable operation of the power system and the production and lives of affected areas. To ensure the integrity of transmission lines, a dual-conductor ground wire technology is proposed: based on steel-cored aluminum stranded wire, utilizing the high resistance of the steel core and the low resistance of the aluminum stranded wire, the Joule heating power of the conductor can be controlled by adjusting the magnitude of the current in the steel core, making the Joule heating power of the conductor adjustable. An insulation layer is embedded between the steel core and the aluminum stranded wire, which can be used for current-carrying heating and grounding lightning protection, respectively.

[0003] Understandably, in practical applications, conductor and ground wire parameters need to be determined based on different application scenarios such as the operating environment, conductor operating parameters, transmission line route terrain, and tower type. However, steel core and aluminum stranded wire have significant differences in physical properties such as resistance and breaking strength. How to determine the design parameters of conductors and ground wires that meet actual needs based on the set parameters is a technical problem that urgently needs to be solved by those skilled in the art.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Summary of the Invention

[0005] Therefore, it is necessary to propose a design method for a self-made thermally conductive ground wire structure based on set parameters to address the above problems.

[0006] The technical problem solved by this application is achieved by the following technical solution:

[0007] This application provides a self-made thermally conductive ground wire structure design method based on set parameters, including the following steps: obtaining set parameters, which include one of the maximum resistance of the inner conductor and the minimum resistance of the inner conductor, one of the maximum resistance of the outer conductor and the minimum resistance of the outer conductor, and the minimum breaking force; matching calculation rules according to the set parameters; determining the design parameters of the ground wire according to the calculation rules, which include the design parameters of the inner conductor and the design parameters of the outer conductor, and also include the material selection and structural design of the inner and outer conductors.

[0008] In an optional embodiment of this application, when the set parameters include the maximum resistance of the inner conductor and the maximum resistance of the outer conductor, a first calculation rule is matched; when the set parameters include the maximum resistance of the inner conductor and the minimum resistance of the outer conductor, a second calculation rule is matched; when the set parameters include the minimum resistance of the inner conductor and the maximum resistance of the outer conductor, a third calculation rule is matched; and when the set parameters include the minimum resistance of the inner conductor and the minimum resistance of the outer conductor, a fourth calculation rule is matched.

[0009] In an optional embodiment of this application, when the calculation rule is the first calculation rule, the design parameters are determined according to the calculation rule, including: calculating the ratio of the maximum resistance between the inner and outer conductors based on the maximum resistance of the inner conductor and the maximum resistance of the outer conductor; if the ratio of the maximum resistance between the inner and outer conductors is greater than or equal to the first maximum resistance ratio, then the outer conductor material in the outer conductor design parameters is determined to be the first material; assuming the inner conductor material is the second material, the resistance per kilometer is calculated based on the minimum breaking force and the second breaking strength and second resistivity corresponding to the second material; the inner conductor design parameters are obtained by matching the inner conductor material selection rule with the resistance per kilometer and the maximum resistance of the inner conductor; the cross-sectional area of ​​the outer conductor is calculated based on the maximum resistance of the outer conductor and the first resistivity corresponding to the first material, and the outer conductor parameter calculation rule is matched to determine the outer conductor design parameters; if the ratio of the maximum resistance between the inner and outer conductors is less than or equal to the second maximum resistance ratio, then the inner conductor material in the design parameters is determined to be the first material. In the body design parameters, the inner conductor material is selected as the first material, and the cross-sectional area of ​​the inner conductor is calculated based on the maximum resistance of the inner conductor and the first resistivity corresponding to the first material. The inner conductor design parameters are determined by matching the inner conductor parameter calculation rules, and the outer conductor design parameters are obtained by using the outer conductor material selection rules. If the ratio of the maximum resistance of the inner and outer conductors is greater than the second maximum resistance ratio but less than the first maximum resistance ratio, then the inner and outer conductor materials are selected as the third material in the design parameters. The cross-sectional area of ​​the inner conductor is calculated based on the minimum breaking force, the maximum resistance of the inner conductor, and the third resistivity and third breaking strength corresponding to the third material, and the inner conductor design parameters are determined by matching the inner conductor parameter calculation rules. The cross-sectional area of ​​the outer conductor is calculated based on the minimum breaking force, the maximum resistance of the outer conductor, and the third resistivity and third breaking strength corresponding to the third material, and the outer conductor design parameters are determined by matching the outer conductor parameter calculation rules.

[0010] In an optional embodiment of this application, the inner conductor material selection rule includes: if the resistance per kilometer is less than or equal to the maximum resistance of the inner conductor, then the inner conductor material is selected as the second material in the inner conductor design parameters, and the cross-sectional area of ​​the inner conductor is calculated based on the minimum breaking force and the second breaking strength, and the inner conductor parameter calculation rule is matched to determine the inner conductor design parameters; if the resistance per kilometer is greater than the maximum resistance of the inner conductor, then the inner conductor material resistance ratio is obtained based on the resistance per kilometer and the maximum resistance of the inner conductor, and the inner conductor material resistance ratio calculation rule is matched based on the inner conductor material resistance ratio to obtain the corresponding design parameters.

[0011] In an optional embodiment of this application, the matching of the inner conductor material resistivity ratio calculation rule to obtain the corresponding design parameters includes: if the inner conductor material resistivity ratio is less than or equal to the first inner conductor material resistivity ratio, then the inner conductor material is determined to be a fourth material in the inner conductor design parameters, and the inner conductor cross-sectional area is calculated based on the minimum breaking force, the maximum resistance of the inner conductor, and the fourth breaking strength and fourth resistivity corresponding to the fourth material, and the inner conductor parameter calculation rule is matched to obtain the corresponding inner conductor design parameters; if the inner conductor material resistivity ratio is greater than the first inner conductor material resistivity ratio and less than or equal to the second inner conductor material resistivity ratio, then the inner conductor material is determined to be a third material in the inner conductor design parameters, and the inner conductor cross-sectional area is calculated based on the minimum breaking force, the maximum resistance of the inner conductor, and the third breaking strength and fourth resistivity corresponding to the third material ... parameter calculation rule is matched to obtain the corresponding inner conductor design parameters; if the inner conductor material resistivity ratio is greater than the first inner conductor material resistivity ratio and less than or equal to the second inner conductor material resistivity ratio, then the inner conductor material is determined to be a third material in the inner conductor design parameters, and the inner conductor cross-sectional area is calculated based on the minimum breaking force, the maximum resistance of the inner conductor, and the third breaking strength and fourth resistivity corresponding to the third material, and the inner conductor parameter calculation rule is matched to obtain the corresponding inner conductor design parameters; The cross-sectional area of ​​the inner conductor is calculated using three resistivity values, and the corresponding design parameters of the inner conductor are obtained by matching the inner conductor parameter calculation rules. If the resistivity ratio of the inner conductor material is greater than the second inner conductor material resistivity ratio, the inner conductor structure design in the inner conductor design parameters is determined to be divided into two layers: the inner inner conductor layer and the outer inner conductor layer. The material of the outer inner conductor layer is selected as the first material, and the material of the inner inner conductor layer is selected as the second material. The cross-sectional area of ​​the inner inner conductor layer is calculated based on the minimum breaking force and the second breaking strength corresponding to the second material, and the corresponding design parameters of the inner inner conductor layer are obtained by matching the inner conductor parameter calculation rules. The cross-sectional area of ​​the outer inner conductor layer is calculated based on the resistance per kilometer, the maximum resistance of the inner conductor, and the first resistivity corresponding to the first material, and the design parameters of the outer inner conductor layer are determined by matching the outer conductor parameter calculation rules.

[0012] In an optional embodiment of this application, the design parameters are obtained through the selection rules for the outer conductor material, including: calculating the cross-sectional area of ​​the first steel wire based on the minimum breaking force and the second breaking strength corresponding to the second material; calculating the cross-sectional area of ​​the second steel wire based on the maximum resistance and the second resistivity of the outer conductor; and calculating the cross-sectional area ratio of the outer conductor based on the cross-sectional area of ​​the first steel wire and the cross-sectional area of ​​the second steel wire; if the cross-sectional area of ​​the first steel wire is greater than the cross-sectional area of ​​the second steel wire, then the outer conductor material is determined to be the second material in the outer conductor design parameters, the cross-sectional area of ​​the first steel wire is used as the cross-sectional area of ​​the outer conductor, and the calculation rules for the outer conductor parameters are matched to determine the outer conductor design parameters; if the cross-sectional area of ​​the first steel wire is less than the cross-sectional area of ​​the second steel wire and the cross-sectional area ratio of the outer conductor is less than or equal to the first area ratio, then the outer conductor material is determined to be the second material in the outer conductor design parameters; the cross-sectional area of ​​the second steel wire is used as the cross-sectional area of ​​the outer conductor, and the calculation rules for the outer conductor parameters are matched to determine the outer conductor design parameters; The conductor parameter calculation rules determine the outer conductor design parameters. If the cross-sectional area of ​​the first steel wire is smaller than that of the second steel wire, and the cross-sectional area ratio of the outer conductor is greater than the first area ratio but less than the second area ratio, then the outer conductor material is selected as the fourth material in the outer conductor design parameters. The cross-sectional area of ​​the outer conductor is calculated based on the minimum breaking force, the maximum resistance of the outer conductor, and the fourth breaking strength and fourth resistivity corresponding to the fourth material, and the outer conductor design parameters are determined by matching the outer conductor parameter calculation rules. If the cross-sectional area of ​​the first steel wire is smaller than that of the second steel wire, and the cross-sectional area ratio of the outer conductor is greater than or equal to the second area ratio, then the outer conductor material is selected as the third material in the outer conductor design parameters. The cross-sectional area of ​​the outer conductor is calculated based on the minimum breaking force, the maximum resistance of the outer conductor, and the third breaking strength and third resistivity corresponding to the third material, and the outer conductor design parameters are determined by matching the outer conductor parameter calculation rules.

[0013] In an optional embodiment of this application, when the calculation rule is the second calculation rule, the design parameters are determined according to the calculation rule, including: determining that the inner conductor material in the inner conductor design parameters is selected as a first material, and the outer conductor material in the outer conductor design parameters is selected as a second material; calculating the first outer conductor cross-sectional area based on the minimum breaking force and the second breaking strength corresponding to the second material, and calculating the second outer conductor cross-sectional area based on the minimum resistance and the second resistivity of the outer conductor; if the second outer conductor cross-sectional area is greater than or equal to the first outer conductor cross-sectional area, then calculating the inner conductor cross-sectional area based on the maximum resistance of the inner conductor and the first resistivity corresponding to the first material, and matching the inner conductor parameter calculation rule to determine the inner conductor design parameters; using the first outer conductor cross-sectional area as the outer conductor cross-sectional area, and matching the outer conductor parameter calculation rule to determine the outer conductor design parameters.

[0014] In an optional embodiment of this application, when the calculation rule is the third calculation rule, the design parameters are determined according to the calculation rule, including: determining that the inner conductor material in the inner conductor design parameters is selected as the second material, and the outer conductor material in the outer conductor design parameters is selected as the first material; calculating the first inner conductor cross-sectional area based on the minimum breaking force and the second breaking strength corresponding to the second material, and calculating the second inner conductor cross-sectional area based on the minimum resistance and the second resistivity of the inner conductor; if the second inner conductor cross-sectional area is greater than or equal to the first inner conductor cross-sectional area, then the second inner conductor cross-sectional area is used as the inner conductor cross-sectional area, and the inner conductor parameter calculation rule is matched to determine the inner conductor design parameters; calculating the outer conductor cross-sectional area based on the maximum resistance of the outer conductor and the first resistivity corresponding to the first material, and matching the outer conductor parameter calculation rule to determine the outer conductor design parameters.

[0015] In an optional embodiment of this application, when the calculation rule is the fourth calculation rule, the design parameters are determined according to the calculation rule, including: selecting the conductor material as the second material in the inner conductor design parameters and outer conductor design parameters; calculating the maximum cross-sectional area of ​​the inner conductor and the maximum cross-sectional area of ​​the outer conductor based on the minimum resistance of the inner conductor, the minimum resistance of the outer conductor, the second material, and the corresponding second resistivity; calculating the conductor-to-ground wire breaking force based on the maximum cross-sectional area of ​​the inner conductor, the maximum cross-sectional area of ​​the outer conductor, the second material, and the corresponding second tensile strength; if the conductor-to-ground wire breaking force is greater than or equal to the minimum breaking force, calculating the cross-sectional area of ​​the inner conductor for production and the cross-sectional area of ​​the outer conductor for production based on the design parameter adjustment coefficient, the conductor-to-ground wire breaking force, the maximum cross-sectional area of ​​the inner conductor, and the maximum cross-sectional area of ​​the outer conductor, respectively; using the cross-sectional area of ​​the inner conductor for production as the cross-sectional area of ​​the inner conductor, and matching the inner conductor parameter calculation rule to determine the inner conductor design parameters; using the cross-sectional area of ​​the outer conductor for production as the cross-sectional area of ​​the outer conductor, and matching the outer conductor parameter calculation rule to determine the outer conductor design parameters.

[0016] In an optional embodiment of this application, the matching inner conductor parameter calculation rules are used to determine the inner conductor design parameters, including: obtaining conductor and ground wire attribute requirement information, determining the number of inner conductor strands based on the conductor and ground wire attribute requirement information, and determining the inner conductor strand diameter, inner conductor diameter, and insulation layer outer diameter based on the inner conductor cross-sectional area and the number of inner conductor strands.

[0017] In an optional embodiment of this application, the matching of outer conductor parameter calculation rules to determine the outer conductor design parameters includes: obtaining the inner diameter of the outer conductor; obtaining a first floating-point number of strands and a second floating-point number of strands based on the cross-sectional area of ​​the outer conductor and the inner diameter of the outer conductor, wherein the difference between the first floating-point number of strands and the second floating-point number of strands is 1; obtaining a first absolute difference in area based on the first floating-point number of strands, the inner diameter of the outer conductor, and the cross-sectional area of ​​the outer conductor; obtaining a second absolute difference in area based on the second floating-point number of strands, the inner diameter of the outer conductor, and the cross-sectional area of ​​the outer conductor; if the first absolute difference in area is less than or equal to the second absolute difference in area, then the first floating-point number of strands is taken as the number of outer conductor strands; if the first absolute difference in area is greater than the second absolute difference in area, then the second floating-point number of strands is taken as the number of outer conductor strands; obtaining the outer conductor strand diameter and the outer diameter of the outer conductor in the outer conductor design parameters based on the inner diameter of the outer conductor, the cross-sectional area of ​​the outer conductor, and the number of outer conductor strands.

[0018] The embodiments of this application have the following beneficial effects:

[0019] This application can match different calculation rules with set parameters, and determine the inner conductor design parameters and outer conductor design parameters that meet the actual needs of self-made thermally conductive grounding wires with inner and outer conductor structures through differential calculation processing. These design parameters include their respective structural designs and material selections, thus providing a reliable basis for the production of self-made thermally conductive grounding wires. Furthermore, the determined design parameters all feature small size, light weight, and low cost, supporting the production of novel self-heating grounding wires with inner and outer conductor structures while endowing them with superior product attributes without compromising their functional requirements.

[0020] The above description is merely an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it according to the contents of the specification, and to make the above and other objects, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. It should be understood that the above general description and the following detailed description are merely exemplary and explanatory, and do not limit this application. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] in:

[0023] Figure 1This is a flowchart illustrating the design method for a self-made thermally conductive ground wire structure based on set parameters in Example 1.

[0024] Figure 2 This is a schematic diagram of the basic structure of the novel self-heating grounding wire containing an inner conductor and an outer conductor, as shown in Example 1.

[0025] Figure 3 This is a schematic diagram of the geometric parameters of the novel self-heating ground wire with an inner conductor and an outer conductor structure in Example 1;

[0026] Figure 4 This is a flowchart illustrating the self-made thermally conductive ground wire structure design method based on set parameters in the first calculation rule of Example 2.

[0027] Figure 4.1 A flowchart illustrating the first branch of the self-made thermally conductive ground wire structure design method based on set parameters in Example 2;

[0028] Figure 4.2 A flowchart illustrating the second branch of the self-made thermally conductive ground wire structure design method based on set parameters in Example 2;

[0029] Figure 4.3 A flowchart illustrating the third branch of the self-made thermally conductive ground wire structure design method based on set parameters in the first calculation rule of Example 2;

[0030] Figure 5 This is a flowchart illustrating the self-made thermally conductive ground wire structure design method based on set parameters in the second calculation rule of Example 3;

[0031] Figure 6 This is a flowchart illustrating the self-made thermally conductive ground wire structure design method based on set parameters according to the third calculation rule in Example 4.

[0032] Figure 7 This is a flowchart illustrating the self-made thermally conductive ground wire structure design method based on set parameters according to the fourth calculation rule in Example 5.

[0033] The attached figures are labeled as follows:

[0034] 1. Inner conductor; 2. Insulating layer; 3. Insulating protective layer; 4. Outer conductor. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0036] Example 1

[0037] Figure 1 This is a flowchart illustrating the self-made thermally conductive ground wire structure design method based on set parameters in Embodiment 1. For a clear description of the self-made thermally conductive ground wire structure design method based on set parameters provided in Embodiment 1 of this application, please refer to [link to documentation]. Figures 1 to 3 .

[0038] Existing technologies include novel self-heating conductors with inner and outer conductor structures, utilizing two materials with different properties and embedding insulating layers within them. The two independent conductors can be used separately for current-carrying heating and grounding for lightning protection. For the structure of novel self-heating grounding wires with inner and outer conductor structures, please refer to [reference needed]. Figure 2 , Figure 2 This is a schematic diagram of the basic structure of the novel self-heating ground wire with inner and outer conductors in Embodiment 1, where the symbols are: 1. Inner conductor; 2. Insulation layer; 3. Insulation protection layer; 4. Outer conductor. However, existing technologies only disclose the conductor structure and do not explain the conductor parameter design. In practical applications, it is necessary to determine the design parameters of the novel self-heating ground wire based on different application scenarios such as the usage environment, conductor operating parameters, transmission line route terrain, and tower type. After determining the design parameters of the novel self-heating ground wire, how to design the novel self-heating ground wire structure is the main problem solved by this application. To this end, a self-heating novel self-heating ground wire structure design method based on the set parameters is provided. Please refer to [link to relevant documentation]. Figure 1 This includes steps S110 to S130.

[0039] Step S110: Obtain the set parameters, which include one of the inner conductor maximum resistance and the inner conductor minimum resistance, one of the outer conductor maximum resistance and the outer conductor minimum resistance, and the minimum breaking force.

[0040] In one embodiment, the maximum resistance per kilometer of the inner conductor is simply referred to as the maximum resistance of the inner conductor, denoted by NRmax; the minimum resistance per kilometer of the inner conductor is simply referred to as the minimum resistance of the inner conductor, denoted by NRmin; the maximum resistance per kilometer of the outer conductor is simply referred to as the maximum resistance of the outer conductor, denoted by WRmax; and the minimum resistance per kilometer of the outer conductor is simply referred to as the minimum resistance of the outer conductor, denoted by WRmin. Therefore, the set parameters include either the maximum resistance of the inner conductor NRmax or the minimum resistance of the inner conductor NRmin; either the maximum resistance of the outer conductor WRmax or the minimum resistance of the outer conductor WRmin; and the minimum breaking force Fmin.

[0041] Step S120: Match the calculation rules according to the set parameters.

[0042] In one embodiment, step S120: matching calculation rules according to set parameters includes: matching a first calculation rule when the set parameters include the maximum resistance of the inner conductor NRmax and the maximum resistance of the outer conductor WRmax; matching a second calculation rule when the set parameters include the maximum resistance of the inner conductor NRmax and the minimum resistance of the outer conductor WRmin; matching a third calculation rule when the set parameters include the minimum resistance of the inner conductor NRmin and the maximum resistance of the outer conductor WRmax; and matching a fourth calculation rule when the set parameters include the minimum resistance of the inner conductor NRmin and the minimum resistance of the outer conductor WRmin.

[0043] In one implementation, such as Figure 2 The design parameters shown are mainly for the inner conductor 1 and the outer conductor 4. Therefore, the corresponding design parameters are either the maximum resistance NRmax or the minimum resistance NRmin of the inner conductor 1, or the maximum resistance WRmax or the minimum resistance WRmin of the outer conductor 4. Thus, there are four possible combinations, corresponding to four different calculation rules. The matching process is shown in step S120. Then, the design parameters of the new self-heating grounding wire can be determined according to different calculation rules. It should be noted that all parameters of the same type in the formulas use the same unit. Specifically, this includes the following categories: the resistivity ρ of different materials is in ohms-meters; similarly, the tensile strength σ of different materials is in MPa; in addition, the resistance per kilometer, such as the maximum and minimum resistance of the inner or outer conductor, is in ohms; the cross-sectional area, represented by the cross-sectional area Sng of the inner conductor or the cross-sectional area S of the outer conductor, is in millimeters squared; and finally, the minimum tensile force Fmin is in N.

[0044] Step S130: Determine the design parameters of the conductor and ground wire according to the calculation rules. The design parameters include the design parameters of the inner conductor and the design parameters of the outer conductor. The design parameters also include the material selection and structural design of the inner conductor and the outer conductor.

[0045] In one embodiment, the design parameters can be categorized by the specific data they include, into material parameters for the inner and outer conductors (material selection) and structural design, which may include, but are not limited to, the diameter and number of strands of the inner and outer conductors. From the structural perspective of the novel self-heating grounding wire, it can be divided into inner conductor design parameters and outer conductor parameter design. In other words, the inner conductor design parameters include both material selection and structural design, and the outer conductor design parameters include both material selection and structural design. The specific methods for calculating the parameters of the novel self-heating grounding wire according to the calculation rules will be detailed later according to the four calculation rules; please refer to the following text for details.

[0046] In one embodiment, when the calculation rule is the first calculation rule, the design parameters are determined according to the calculation rule, including: calculating the ratio of the inner and outer maximum resistances Bnw based on the maximum resistance of the inner conductor NRmax and the maximum resistance of the outer conductor WRmax; if the ratio of the inner and outer maximum resistances Bnw is greater than or equal to the first maximum resistance ratio, then the outer conductor material in the outer conductor design parameters is determined to be the first material; assuming the inner conductor material is the second material, the resistance per kilometer Rng is calculated based on the minimum breaking force Fmin and the second breaking strength σG and second resistivity ρG corresponding to the second material; the inner conductor design parameters are obtained by matching the resistance per kilometer Rng with the inner conductor maximum resistance NRmax according to the inner conductor material selection rule; the cross-sectional area S of the outer conductor is calculated based on the maximum resistance of the outer conductor WRmax and the first resistivity ρL corresponding to the first material, and the outer conductor parameter calculation rule is matched to determine the outer conductor design parameters; if the ratio of the inner and outer maximum resistances Bnw is less than or equal to the second maximum resistance ratio, then the inner conductor material in the inner conductor design parameters is determined to be the first material. The conductor material is selected as the first material. The cross-sectional area Sng of the inner conductor is calculated based on the maximum resistance NRmax of the inner conductor and the first resistivity ρL corresponding to the first material. The inner conductor design parameters are determined by matching the inner conductor parameter calculation rules. The outer conductor design parameters are obtained by using the outer conductor material selection rules. If the ratio of the maximum resistance between the inner and outer conductors Bnw is greater than the second maximum resistance ratio but less than the first maximum resistance ratio, then the inner conductor material and the outer conductor material are both selected as the third material in the design parameters. The cross-sectional area Sng of the inner conductor is calculated based on the minimum breaking force Fmin, the maximum resistance NRmax of the inner conductor, and the third resistivity ρLB4 and third breaking strength σLB40 corresponding to the third material. The inner conductor design parameters are determined by matching the inner conductor parameter calculation rules. The cross-sectional area S of the outer conductor is calculated based on the minimum breaking force Fmin, the maximum resistance WRmax of the outer conductor, and the third resistivity ρLB4 and third breaking strength σLB40 corresponding to the third material. The outer conductor design parameters are determined by matching the outer conductor parameter calculation rules.

[0047] In one embodiment, the specific process can be to first calculate the ratio of the inner and outer maximum resistances, Bnw, based on the maximum resistances of the inner conductor, NRmax, and the maximum resistance of the outer conductor, WRmax. Let Bnw be equal to the maximum resistance of the inner conductor, NRmax, divided by the maximum resistance of the outer conductor, WRmax. Equation 1 can be referenced as follows:

[0048] Bnw=NRmax / WRmax…… (1)

[0049] The calculated maximum resistance ratio Bnw is compared with preset first and second maximum resistance ratios, and different calculation rules are matched according to the comparison results. The first and second maximum resistance ratios are preset values; in a preferred embodiment, the first maximum resistance ratio can be 4 and the second maximum resistance ratio can be 1. When the maximum resistance ratio Bnw is greater than or equal to the first maximum resistance ratio, the outer conductor material in the outer conductor design parameters is determined to be the first material. In a preferred embodiment, the first material can be aluminum. After determining the outer conductor material, the inner conductor material in the inner conductor design parameters can be assumed to be the second material, and the relevant values ​​are calculated based on the second material to determine the matching of corresponding calculation rules. In a preferred embodiment, the second material can be steel. It should be clarified that the tensile force Fb, the tensile strength σ corresponding to the material, and the cross-sectional area So follow the following relationship:

[0050] Fb=σ×So…… (2)

[0051] In the step of calculating the resistance Rng per kilometer by obtaining the preset minimum breaking force Fmin and the second breaking strength σG and second resistivity ρG corresponding to the second material, the minimum breaking force Fmin and the second breaking strength σG can be substituted into Equation 2 to obtain the cross-sectional area Sng of the inner conductor if the inner conductor is the second material. Then, the cross-sectional area Sng of the inner conductor and the second resistivity ρG are used to calculate the resistance Rng per kilometer. The calculation process of substituting the cross-sectional area Sng of the inner conductor into Equation 2 can be expressed as follows:

[0052] Sng=Fmin / σG…… (3)

[0053] Furthermore, the determination of the resistance Rng per kilometer using the cross-sectional area Sng of the inner conductor and the second resistivity ρG follows a variation of Equation 4, which can be expressed as:

[0054]

[0055] Where ρ is the resistivity of the material, R represents the resistance per kilometer R, and S is the cross-sectional area S. Therefore, as a variation of Equation 4, the formula for calculating the resistance per kilometer Rng can be:

[0056]

[0057] Then, the inner conductor design parameters can be obtained by matching the inner conductor material selection rule with the resistance per kilometer Rng and the maximum resistance NRmax of the inner conductor. The calculation process of the inner conductor material selection rule will be elaborated in detail later and will not be repeated here. It should be clarified that the inner conductor design parameters obtained through the inner conductor material selection rule will include the outer diameter Djw of the insulation layer. At the same time, since the outer conductor material selected in the outer conductor design parameters is the first material, the cross-sectional area S of the outer conductor is determined according to the maximum resistance WRmax of the outer conductor and the first resistivity ρL corresponding to the first material, and the outer conductor design parameters are determined by matching the outer conductor parameter calculation rule. Specifically, the process can be as follows: substitute the first resistivity ρL and the maximum resistance WRmax of the outer conductor into Equation 4 to obtain the minimum cross-sectional area WSmin of the outer conductor. Take the minimum cross-sectional area WSmin of the outer conductor as the cross-sectional area S of the outer conductor, and take the outer diameter Djw of the insulation layer obtained through the inner conductor material selection rule as the inner diameter of the outer conductor, so as to match the outer conductor parameter calculation rule to determine the outer conductor design parameters.

[0058] If the ratio of the maximum resistance between the inner and outer conductors, Bnw, is less than or equal to the second maximum resistance ratio, i.e., less than or equal to 1, then the inner conductor material is selected as the first material in the inner conductor design parameters. The inner conductor cross-sectional area, Sng, is calculated by substituting the maximum resistance NRmax of the inner conductor and the first resistivity ρL corresponding to the first material into Equation 4. The inner conductor design parameters are then determined by matching the inner conductor parameter calculation rules, and the outer conductor design parameters are obtained through the outer conductor material selection rules. It is worth noting that the inner and outer conductor parameter calculation rules will appear frequently later, meaning these two rules will be commonly used steps. Therefore, they will be explained at the end and will not be elaborated here. Furthermore, since the inner conductor material has been determined in this step, the outer conductor material needs to be further determined. The outer conductor material selection rule is also a relatively complex calculation rule, which will be elaborated in detail later and will not be elaborated here.

[0059] If the ratio of the maximum resistance between the inner and outer conductors, Bnw, is greater than the second maximum resistance ratio but less than the first maximum resistance ratio, i.e., within the range of 1 to 4, then it can be determined that the selection of both the inner and outer conductor materials in the design parameters is a third material. In a preferred embodiment, the third material can be aluminum-clad steel LB40. Aluminum-clad steel LB40 is a type of aluminum-clad steel wire in a national standard, and specific details can be found in the relevant national standard description (such as the description in the national standard GB / T 17937-2009, "Aluminum-clad Steel Wire for Electrical Engineering"). Since the materials of both the inner and outer conductors are determined, the cross-sectional areas of the inner and outer conductors can be determined separately. Therefore, taking the inner conductor as an example, based on the minimum breaking force Fmin and the third breaking strength σLB40 corresponding to the third material, the cross-sectional area Sng1 of the first inner conductor can be calculated according to the transformation of Equation 2. Additionally, the maximum resistance NRmax of the inner conductor and the third resistivity ρLB40 corresponding to the third material can be substituted into Equation 4 to calculate the cross-sectional area Sng2 of the second inner conductor. The maximum value among the first inner conductor cross-sectional area Sng1 and the second inner conductor cross-sectional area Sng2 is taken as the inner conductor cross-sectional area Sng, and the inner conductor design parameters are determined by matching the inner conductor parameter calculation rules. The calculation process for the cross-sectional area Sng can be found in Formula 6:

[0060] Sng1=Fmin / σLB40

[0061]

[0062] Sng=max(Sng1, Sng2)…… (6)

[0063] The maximum value of the cross-sectional area Sng1 of the first inner conductor and the cross-sectional area Sng2 of the second inner conductor is taken as the cross-sectional area Sng, and the inner conductor parameter calculation rules are matched to determine the inner conductor design parameters.

[0064] Similarly, the cross-sectional area S of the outer conductor can be determined based on the minimum breaking force Fmin, the maximum resistance WRmax of the outer conductor, the third resistivity ρLB40, and the third breaking strength σLB40. The design parameters of the outer conductor are then determined by matching the calculation rules for the outer conductor parameters. The calculation process for the cross-sectional area S of the outer conductor can follow Formula 7:

[0065] Swg1=Fmin / σLB40

[0066]

[0067] S=max(Swg1, Swg2)…… (7)

[0068] In one embodiment, the inner conductor material selection rule includes: if the resistance per kilometer Rng is less than or equal to the maximum resistance of the inner conductor NRmax, then the inner conductor material is selected as the second material in the inner conductor design parameters, and the cross-sectional area Sng of the inner conductor is calculated based on the minimum breaking force Fmin and the second breaking strength σG, and the inner conductor parameter calculation rule is matched to determine the inner conductor design parameters; if the resistance per kilometer Rng is greater than the maximum resistance of the inner conductor NRmax, then the inner conductor material resistance ratio Bdz is obtained based on the resistance per kilometer Rng and the maximum resistance of the inner conductor NRmax, and the inner conductor material resistance ratio calculation rule is matched based on the inner conductor material resistance ratio Bdz to obtain the corresponding design parameters.

[0069] In one embodiment, it is determined whether the resistance per kilometer Rng is greater than the maximum resistance NRmax of the inner conductor. If the resistance per kilometer Rng is less than or equal to the maximum resistance NRmax, then the inner conductor material is selected as the second material in the inner conductor design parameters. The calculation of the resistance per kilometer Rng in the preceding text assumes the inner conductor material is the second material. Therefore, the cross-sectional area Sng of the inner conductor calculated previously can be used, and the inner conductor parameter calculation rules can be matched to determine the inner conductor design parameters. If the resistance per kilometer Rng is greater than the maximum resistance NRmax, then the inner conductor material resistance ratio Bdz needs to be obtained further using the resistance per kilometer Rng and the maximum resistance NRmax. The corresponding design parameters are then obtained by matching the inner conductor material resistance ratio calculation rules according to the specific value of the inner conductor material resistance ratio Bdz. The calculation process of the inner conductor material resistance ratio Bdz can follow Equation 8:

[0070] Bdz=Rng / NRmax…… (8)

[0071] In one embodiment, matching the inner conductor material resistivity ratio calculation rule to obtain the corresponding design parameters includes: if the inner conductor material resistivity ratio Bdz is less than or equal to the first inner conductor material resistivity ratio, then the inner conductor material is determined to be the fourth material in the inner conductor design parameters, and the inner conductor cross-sectional area Sng is calculated based on the minimum breaking force Fmin, the maximum inner conductor resistance NRmax, and the fourth breaking strength σLB27 and fourth resistivity ρLB27 corresponding to the fourth material, and the corresponding inner conductor design parameters are obtained by matching the inner conductor parameter calculation rule; if the inner conductor material resistivity ratio Bdz is greater than the first inner conductor material resistivity ratio and less than or equal to the second inner conductor material resistivity ratio, then the inner conductor material is determined to be the third material in the inner conductor design parameters, and the minimum breaking force Fmin, the maximum inner conductor resistance NRmax, and the third breaking strength σLB4 corresponding to the third material are used. 0. Calculate the cross-sectional area Sng of the inner conductor using the third resistivity ρLB40, and match it with the inner conductor parameter calculation rules to obtain the corresponding inner conductor design parameters. If the resistivity ratio Bdz of the inner conductor material selection is greater than the resistivity ratio of the second inner conductor material selection, then the inner conductor structure design in the inner conductor design parameters is determined to be divided into two layers: the inner inner conductor layer and the outer inner conductor layer. The material of the outer inner conductor layer is selected as the first material, and the material of the inner inner conductor layer is selected as the second material. Calculate the cross-sectional area Sng of the inner inner conductor layer based on the minimum breaking force Fmin and the second breaking strength σG corresponding to the second material, and match it with the inner conductor parameter calculation rules to obtain the corresponding inner conductor inner layer design parameters. Calculate the cross-sectional area S of the outer inner conductor layer based on the resistance per kilometer Rng, the maximum resistance NRmax of the inner conductor, and the first resistivity ρL corresponding to the first material, and match it with the outer conductor parameter calculation rules to determine the inner conductor outer layer design parameters.

[0072] In one embodiment, the value compared by the inner conductor material resistance ratio Bdz includes a preset first inner conductor material resistance ratio and a second inner conductor material resistance ratio. In a preferred embodiment, the first inner conductor material resistance ratio can be 1.4, and the second inner conductor material resistance ratio can be 2. Therefore, if the inner conductor material resistance ratio Bdz is less than or equal to the first inner conductor material resistance ratio, i.e., less than or equal to 1.4, then the inner conductor material in the inner conductor design parameters can be determined to be the fourth material. In a preferred embodiment, the fourth material can be aluminum-clad steel LB27. Similarly, LB27 is also a type of aluminum-clad steel wire in a national standard. For details, please refer to the relevant national standard description, such as the description in the national standard GB / T 17937-2009 Standard for Aluminum-Clad Steel Wire for Electrical Engineering. Then, the cross-sectional area Sng of the inner conductor can be calculated based on the minimum breaking force Fmin, the maximum resistance NRmax of the inner conductor, and the fourth breaking strength σLB27 and fourth resistivity ρLB27 corresponding to the fourth material. The corresponding inner conductor design parameters are then obtained by matching the inner conductor parameter calculation rules. The calculation process for the cross-sectional area Sng is similar to Equation 6, except that the third breaking strength σLB40 and third resistivity ρLB40 corresponding to the third material in Equation 6 are replaced with the fourth breaking strength σLB27 and fourth resistivity ρLB27. The specific calculation process can be found in Equation 9.

[0073] Sng1=Fmin / σLB27

[0074]

[0075] Sng=max(Sng1, Sng2)…… (9)

[0076] If the resistivity ratio Bdz of the inner conductor is greater than the first inner conductor resistivity ratio and less than or equal to the second inner conductor resistivity ratio (i.e., within the range of greater than 1.4 and less than or equal to 2), then the inner conductor material in the inner conductor design parameters can be determined to be the third material, which is aluminum-clad steel LB40. Following this, similar steps as described above are taken: the cross-sectional area Sng of the inner conductor is calculated based on the minimum breaking force Fmin, the maximum resistance NRmax of the inner conductor, and the third breaking strength σLB40 and third resistivity ρLB40 corresponding to the third material. The calculation process can be referred to Equation 6, and will not be repeated here. Then, the corresponding inner conductor design parameters can be obtained by matching the inner conductor parameter calculation rules.

[0077] If the resistivity ratio Bdz of the inner conductor material selection is greater than the resistivity ratio of the second inner conductor material selection, then the inner conductor structure design in the inner conductor design parameters is determined to be divided into two layers, namely the inner conductor inner layer and the inner conductor outer layer; the material selection of the inner conductor outer layer is the first material, and the material selection of the inner conductor inner layer is the second material. That is to say, the inner conductor material can be divided into two layers, the inner conductor inner layer and the inner conductor outer layer, and the design parameters of the inner conductor inner layer and the inner conductor outer layer are obtained separately. It can be determined that the material selection of the inner conductor inner layer can be steel, and the material selection of the inner conductor outer layer can be aluminum. First, the design parameters of the inner conductor inner layer can be determined. Since the material selection of the inner conductor inner layer is the second material, the cross-sectional area Sng of the inner conductor inner layer can be calculated by substituting the minimum breaking force Fmin and the second breaking strength σG corresponding to the second material into Equation 2, and the resistance Rng per kilometer of the inner conductor inner layer can be calculated according to the cross-sectional area of ​​the inner conductor inner layer and Equation (5). The corresponding inner conductor inner layer design parameters can be obtained by matching the inner conductor parameter calculation rules. Further, the design parameters of the outer layer of the inner conductor are calculated. Since the outer layer of the inner conductor is made of the first material, the cross-sectional area S of the outer layer of the inner conductor is calculated based on the resistance Rng per kilometer of the inner conductor, the maximum resistance NRmax of the inner conductor, and the first resistivity ρL corresponding to the first material. The calculation process for the cross-sectional area S of the outer layer of the inner conductor can be as follows: Since the material of the outer layer of the inner conductor is aluminum, the outer layer resistance RL needs to be calculated first, which can follow Formula 10:

[0078] RL=NRmax×Rng / (Rng-NRmax)…… (10)

[0079] Substituting the first resistivity ρL and the outer layer resistance RL into Equation 4, the minimum cross-sectional area Smin of the inner conductor's outer layer can be calculated. This minimum cross-sectional area Smin is then taken as the cross-sectional area S of the inner conductor's outer layer. Next, based on the inner conductor parameter calculation rules mentioned earlier, the inner conductor's inner layer diameter Dn is obtained as the outer conductor's inner diameter Dwn. Furthermore, the cross-sectional area S of the inner conductor's outer layer is taken as the outer conductor's cross-sectional area S. By matching this with the outer conductor parameter calculation rules, the design parameters of the inner conductor's outer layer can be determined.

[0080] In one embodiment, the design parameters are obtained through the selection rules for the outer conductor material, including: calculating the first steel wire cross-sectional area Swg1 based on the minimum breaking force Fmin and the second breaking strength σG corresponding to the second material; calculating the second steel wire cross-sectional area Swg2 based on the maximum resistance WRmax and the second resistivity ρG of the outer conductor; and calculating the outer conductor cross-sectional area ratio BZ based on the first steel wire cross-sectional area Swg1 and the second steel wire cross-sectional area Swg2; if the first steel wire cross-sectional area Swg1 is greater than the second steel wire cross-sectional area Swg2, then the outer conductor material is determined to be the second material in the outer conductor design parameters, the first steel wire cross-sectional area Swg1 is taken as the outer conductor cross-sectional area S, and the outer conductor parameter calculation rules are matched to determine the outer conductor design parameters; if the first steel wire cross-sectional area Swg1 is less than the second steel wire cross-sectional area Swg2 and the outer conductor cross-sectional area ratio BZ is less than or equal to the first area ratio, then the outer conductor material is determined to be the second material in the outer conductor design parameters; the second steel wire cross-sectional area Swg2 is taken as the outer conductor cross-sectional area S, and the outer conductor cross-sectional area ratio BZ is matched to the second material. The outer conductor design parameters are determined by the calculation rules of the body parameters. If the cross-sectional area Swg1 of the first steel wire is less than the cross-sectional area BZ2 of the second steel wire and the cross-sectional area ratio BZ of the outer conductor is greater than the first area ratio and less than the second area ratio, then the outer conductor material is selected as the fourth material in the outer conductor design parameters. The cross-sectional area S of the outer conductor is calculated based on the minimum breaking force Fmin, the maximum resistance WRmax of the outer conductor, and the fourth breaking strength σLB27 and fourth resistivity ρLB27 corresponding to the fourth material, and the outer conductor design parameters are determined by matching the calculation rules of the outer conductor parameters. If the cross-sectional area Swg1 of the first steel wire is less than the cross-sectional area Swg2 of the second steel wire and the cross-sectional area ratio BZ of the outer conductor is greater than or equal to the second area ratio, then the outer conductor material is selected as the third material in the outer conductor design parameters. The cross-sectional area S of the outer conductor is calculated based on the minimum breaking force Fmin, the maximum resistance WRmax of the outer conductor, and the third resistivity ρLB40 and third breaking strength σLB40 corresponding to the third material, and the outer conductor design parameters are determined by matching the calculation rules of the outer conductor parameters.

[0081] In one embodiment, when the maximum resistance ratio Bnw mentioned above is less than or equal to the second maximum resistance ratio, since the inner conductor design parameters have been determined first, the remaining design parameters need to be obtained through the outer conductor material selection rules. Specifically, it can be assumed that the outer conductor uses a second material, that is, the first steel wire cross-sectional area Swg1 can be calculated by substituting the minimum breaking force Fmin and the second breaking strength σG corresponding to the second material into Equation 2. And, the second steel wire cross-sectional area Swg2 can be calculated by substituting the maximum resistance WRmax and the second resistivity ρG of the outer conductor into Equation 4. And the outer conductor cross-sectional area ratio BZ can be calculated based on the first steel wire cross-sectional area Swg1 and the second steel wire cross-sectional area Swg2. The calculation of the outer conductor cross-sectional area ratio BZ can follow Equation 11:

[0082] BZ = Swg2 / Swg1…… (11)

[0083] If the cross-sectional area Swg1 of the first steel wire is greater than the cross-sectional area Swg2 of the second steel wire, then the material selected for the outer conductor in the outer conductor design parameters is determined to be the second material, which can be steel. In this case, the cross-sectional area Swg1 of the first steel wire can be used as the cross-sectional area S of the outer conductor, and the outer conductor design parameters can be determined by matching the calculation rules.

[0084] If the cross-sectional area Swg1 of the first steel wire is less than the cross-sectional area Swg2 of the second steel wire, and the cross-sectional area ratio BZ of the outer conductor is less than or equal to the first area ratio, then the outer conductor material in the outer conductor design parameters is determined to be the second material. The second material can be steel, and in a preferred embodiment, the first area ratio can be 1.4. In this case, the cross-sectional area Swg2 of the second steel wire can be used as the cross-sectional area S of the outer conductor, and the outer conductor design parameters can be determined by matching the calculation rules.

[0085] If the cross-sectional area Swg1 of the first steel wire is smaller than the cross-sectional area Swg2 of the second steel wire, and the cross-sectional area ratio BZ of the outer conductor is greater than the first area ratio but less than the second area ratio, then the outer conductor material in the outer conductor design parameters is determined to be the fourth material. The second area ratio is a preset constant, which in a preferred embodiment can be 2. After determining the outer conductor material, the cross-sectional area S of the outer conductor can be calculated based on the minimum breaking force Fmin, the maximum resistance WRmax of the outer conductor, and the fourth breaking strength σLB27 and fourth resistivity ρLB27 corresponding to the fourth material. The outer conductor design parameters are then determined by matching the outer conductor parameter calculation rules. The calculation process for the cross-sectional area S of the outer conductor can refer to Equation 7, replacing the parameters of the third material with those of the fourth material, specifically as Equation 12:

[0086] Swg1=Fmin / σLB27

[0087]

[0088] S=max(Swg1, Swg2)…… (12)

[0089] If the cross-sectional area Swg1 of the first steel wire is less than the cross-sectional area Swg2 of the second steel wire, and the ratio of the outer conductor cross-sectional area BZ is greater than or equal to the second area ratio, then the outer conductor material is selected as the third material in the outer conductor design parameters. The outer conductor cross-sectional area S is calculated based on the minimum breaking force Fmin, the maximum resistance WRmax of the outer conductor, and the third resistivity ρLB40 and third breaking strength σLB40 corresponding to the third material. This calculation is then matched with the outer conductor parameter calculation rules to determine the outer conductor design parameters. The calculation process for the outer conductor cross-sectional area S can be found in Equation 7, which has been detailed previously and will not be repeated here.

[0090] In one embodiment, when the calculation rule is the second calculation rule, the design parameters are determined according to the calculation rule, including: determining that the inner conductor material in the inner conductor design parameters is selected as a first material, and the outer conductor material in the outer conductor design parameters is selected as a second material; calculating the first outer conductor cross-sectional area Swg1 based on the minimum breaking force Fmin and the second breaking strength σG corresponding to the second material, and calculating the second outer conductor cross-sectional area Swg2 based on the minimum resistance WRmin and the second resistivity ρG of the outer conductor; if the second outer conductor cross-sectional area Swg2 is greater than or equal to the first outer conductor cross-sectional area Swg1, then calculating the inner conductor cross-sectional area Snl based on the maximum resistance NRmax of the inner conductor and the first resistivity ρL corresponding to the first material, and matching the inner conductor parameter calculation rule to determine the inner conductor design parameters; taking the first outer conductor cross-sectional area Swg1 as the outer conductor cross-sectional area S, and matching the outer conductor parameter calculation rule to determine the outer conductor design parameters.

[0091] In one embodiment, when the calculation rule is the second calculation rule, the input setting parameters include the maximum resistance of the inner conductor NRmax and the minimum resistance of the outer conductor WRmin. In this case, the inner conductor material in the inner conductor design parameters can be directly selected as the first material, and the outer conductor material in the outer conductor design parameters can be selected as the second material. Simultaneously, for the outer conductor made of the second material, the first outer conductor cross-sectional area Swg1 is calculated based on the minimum breaking force Fmin and the second breaking strength σG corresponding to the second material, respectively, and the second outer conductor cross-sectional area Swg2 is calculated based on the minimum resistance WRmin and the second resistivity ρG. The specific calculation process can be as follows:

[0092] Swg1=Fmin / σG

[0093]

[0094] If the second outer conductor cross-sectional area Swg2 is smaller than the first outer conductor cross-sectional area Swg1, then the novel self-heating grounding wire cannot be designed using these parameters, and the calculation ends. Therefore, in a preferred embodiment, subsequent calculations are only performed when the second outer conductor cross-sectional area Swg2 is greater than or equal to the first outer conductor cross-sectional area Swg1. Since the outer conductor material is selected as the second material in the outer conductor design parameters, the first outer conductor cross-sectional area Swg1 can be used as the outer conductor cross-sectional area S, and the outer conductor design parameters are determined by matching the outer conductor parameter calculation rules. Furthermore, the inner conductor material is selected as the first material in the inner conductor design parameters. The inner conductor cross-sectional area Snl can be calculated by substituting the maximum resistance NRmax of the inner conductor and the first resistivity ρL corresponding to the first material into Equation 4, and the inner conductor design parameters are determined by matching the inner conductor parameter calculation rules. The calculation formula for the inner conductor cross-sectional area Snl can be found in Equation 14:

[0095]

[0096] In one embodiment, when the calculation rule is the third calculation rule, the design parameters are determined according to the calculation rule, including: determining that the inner conductor material in the inner conductor design parameters is selected as the second material, and the outer conductor material in the outer conductor design parameters is selected as the first material; calculating the first inner conductor cross-sectional area Sng1 based on the minimum breaking force Fmin and the second breaking strength σG corresponding to the second material, and calculating the second inner conductor cross-sectional area Sng2 based on the minimum resistance NRmin and the second resistivity ρG of the inner conductor; if the second inner conductor cross-sectional area Sng2 is greater than or equal to the first inner conductor cross-sectional area Sng1, then the second inner conductor cross-sectional area Sng2 is used as the inner conductor cross-sectional area Sng, and the inner conductor parameter calculation rule is matched to determine the inner conductor design parameters; calculating the outer conductor cross-sectional area S based on the maximum resistance WRmax of the outer conductor and the first resistivity ρL corresponding to the first material, and matching the outer conductor parameter calculation rule to determine the outer conductor design parameters.

[0097] In one embodiment, when the calculation rule is the third calculation rule, the input design setting parameters include the minimum resistance NRmin of the inner conductor and the maximum resistance WRmax of the outer conductor. In this case, the inner conductor material in the inner conductor design parameters can be selected as the second material, and the outer conductor material in the outer conductor design parameters can be selected as the first material, i.e., steel can be selected for the inner conductor material and aluminum for the outer conductor material. Similarly, the minimum breaking force Fmin and the second breaking strength σG corresponding to the second material can be substituted into Equation 2 to calculate the first inner conductor cross-sectional area Sng1; and the second inner conductor cross-sectional area Sng2 can be calculated by substituting the minimum resistance NRmin and the second resistivity ρG into Equation 4. The calculation process can be as follows:

[0098] Sng1=Fmin / σG

[0099]

[0100] Similarly, if the second inner conductor cross-sectional area Sng2 is smaller than the first inner conductor cross-sectional area Sng1, then this parameter cannot be used to design a usable new self-heating grounding wire, and the calculation ends. Therefore, in a preferred embodiment, subsequent calculations are performed only when the second inner conductor cross-sectional area Sng2 is greater than or equal to the first inner conductor cross-sectional area Sng1. The second inner conductor cross-sectional area Sng2 is taken as the inner conductor cross-sectional area Sng, and the inner conductor parameter calculation rules are matched to determine the inner conductor design parameters. Further, since the outer conductor material selection is determined, the outer conductor cross-sectional area S can be calculated by substituting the maximum resistance WRmax of the outer conductor and the first resistivity ρL corresponding to the first material into Equation 4, and the outer conductor design parameters are matched to determine the outer conductor design parameters.

[0101] In one embodiment, when the calculation rule is the fourth calculation rule, the design parameters are determined according to the calculation rule, including: selecting the conductor material as the second material in the inner conductor design parameters and outer conductor design parameters; calculating the maximum cross-sectional area NSmax of the inner conductor and the maximum cross-sectional area WSmax of the outer conductor based on the minimum resistance NRmin of the inner conductor, the minimum resistance WRmin of the outer conductor, the second material, and the corresponding second resistivity ρG; calculating the conductor-to-ground wire breaking force Fdd based on the maximum cross-sectional area NSmax of the inner conductor, the maximum cross-sectional area WSmax of the outer conductor, the second material, and the corresponding second tensile strength σG; if If the conductor breaking force Fdd is greater than or equal to the minimum breaking force Fmin, then the cross-sectional area of ​​the inner conductor NSsc and the cross-sectional area of ​​the outer conductor WSsc are calculated based on the design parameter adjustment coefficient Ktj, the conductor breaking force Fdd, the maximum cross-sectional area of ​​the inner conductor NSmax, and the maximum cross-sectional area of ​​the outer conductor WSmax. The cross-sectional area of ​​the inner conductor NSsc is used as the cross-sectional area Sng of the inner conductor, and the inner conductor design parameters are determined by matching the inner conductor parameter calculation rules. The cross-sectional area of ​​the outer conductor WSsc is used as the cross-sectional area S of the outer conductor, and the outer conductor design parameters are determined by matching the outer conductor parameter calculation rules.

[0102] In one embodiment, when the calculation rule is the fourth calculation rule, the input design setting parameters include the minimum resistance of the inner conductor NRmin and the minimum resistance of the outer conductor WRmin. In this case, the conductor material in the inner conductor design parameters and the outer conductor design parameters can be directly determined to be the second material, that is, the materials of both the inner conductor 1 and the outer conductor 4 are steel. The second resistivity ρG corresponding to the second material is obtained, and substituted with the minimum resistance of the inner conductor NRmin and the minimum resistance of the outer conductor WRmin into Equation 4, respectively, the maximum cross-sectional area of ​​the inner conductor NSmax and the maximum cross-sectional area of ​​the outer conductor WSmax can be calculated. The calculation process can be referred to Equation 16:

[0103]

[0104]

[0105] The calculation process for the conductor-to-ground wire breaking force Fdd, based on the maximum cross-sectional area of ​​the inner conductor NSmax, the maximum cross-sectional area of ​​the outer conductor WSmax, and the second material and corresponding second tensile strength σG, can be as follows: Substitute the maximum cross-sectional area of ​​the inner conductor NSmax, the maximum cross-sectional area of ​​the outer conductor WSmax, and the second material and corresponding second tensile strength σG into Equation 2 respectively to calculate the maximum breaking force NFmax of the inner conductor and the maximum breaking force WFmax of the outer conductor. Then, add the two together to obtain the conductor-to-ground wire breaking force Fdd. See Equation 17 for details.

[0106] NFmax = σG × NSmax

[0107] WFmax=σG×WSmax

[0108] Fdd = NSmax + WSmax ... (17)

[0109] Determine if the breaking force Fdd of the conductor is greater than the minimum breaking force Fmin: If it is less, the design parameters cannot be met, and the relevant new self-heating conductor cannot be designed; if it is greater, continue to the next design step. That is, when the breaking force Fdd of the new self-heating conductor is greater than or equal to the minimum breaking force Fmin, the cross-sectional area NSsc of the inner conductor and the cross-sectional area WSsc of the outer conductor for production are calculated according to the design parameter adjustment coefficient Ktj, the breaking force Fdd, the maximum cross-sectional area NSmax of the inner conductor, and the maximum cross-sectional area WSmax of the outer conductor. The specific determination process can be as follows: first, calculate the area coefficient ks according to the design parameter adjustment coefficient Ktj, the breaking force Fdd, and the minimum breaking force Fmin; then, calculate the cross-sectional area NSsc of the inner conductor and the cross-sectional area WSsc of the outer conductor for production according to the area coefficient ks, the maximum cross-sectional area NSmax, and the maximum cross-sectional area WSmax of the outer conductor. Among them, the design parameter adjustment coefficient Ktj is a preset parameter that is greater than or equal to zero. The calculation process can follow Equation 18:

[0110] ks=(1+Ktj)·Fmin / Fdd

[0111] NSsc = ks × NSmax

[0112] WSsc=ks×WSmax…… (18)

[0113] Then, the cross-sectional area NSsc of the inner conductor used for production can be used as the cross-sectional area Sng of the inner conductor, and the inner conductor parameter calculation rules can be matched to determine the inner conductor design parameters; the cross-sectional area WSsc of the outer conductor used for production can be used as the cross-sectional area S of the outer conductor, and the outer conductor parameter calculation rules can be matched to determine the outer conductor design parameters.

[0114] In one embodiment, matching the inner conductor parameter calculation rules to determine the inner conductor design parameters includes: obtaining conductor and ground wire attribute requirement information, determining the number of inner conductor strands Nxg based on the conductor and ground wire attribute requirement information, and determining the inner conductor strand diameter Dxg, inner conductor diameter Dn, and insulation layer outer diameter Djw based on the inner conductor cross-sectional area Sng and the number of inner conductor strands Nxg.

[0115] In one embodiment, the conductor / ground wire attribute requirement information is obtained, and the number of inner conductor strands Nxg is determined based on the conductor / ground wire attribute requirement information. That is, it is determined whether the conductor / ground wire is an OPGW ground wire (Optical Fiber Composite Overhead Ground Wire). If it is, the number of inner conductor strands Nxg is equal to 6; if not, the number of inner conductor strands Nxg is equal to 7. The inner conductor strand diameter Dxg, inner conductor diameter Dn, and insulation layer outer diameter Djw are determined based on the inner conductor cross-sectional area Sng and the number of inner conductor strands Nxg. This includes first determining the inner conductor strand area Sxg based on the inner conductor cross-sectional area Sng and the number of inner conductor strands Nxg, and then determining the inner conductor strand diameter Dxg and inner conductor diameter Dn based on the inner conductor strand area Sxg. Then, the sum of the preset insulation layer thickness and the insulation protection layer 3 thickness is obtained as Hd, and finally the insulation layer outer diameter Djw is determined. The calculation process can be referred to in Equation 19:

[0116] Sxg=Sng / Nxg

[0117]

[0118] Dn=3Dxg

[0119] Djw=3Dxg+2Hd…… (19)

[0120] It is worth noting that, reference Figure 2 It can be seen that the outer diameter of the insulation layer, Djw, can be regarded as the inner diameter of the outer conductor, Dwn, when calculating the parameters of the outer conductor later, unless otherwise specified. For example, when the inner conductor material is selected as a double-layer inner conductor structure with an inner layer of steel and an outer layer of aluminum, the inner diameter of the outer layer of the inner conductor, Dwn, is equal to the inner diameter of the inner layer of the inner conductor, Dn.

[0121] In one embodiment, matching the outer conductor parameter calculation rules to determine the outer conductor design parameters includes: obtaining the outer conductor inner diameter Dwn; obtaining a first floating-point number Nfd1 and a second floating-point number Nfd2 based on the outer conductor cross-sectional area S and the outer conductor inner diameter Dwn, wherein the difference between the first floating-point number Nfd1 and the second floating-point number Nfd2 is 1; obtaining a first absolute area difference Sc1 based on the first floating-point number Nfd1, the outer conductor inner diameter Dwn, and the outer conductor cross-sectional area S; and obtaining the second floating-point number Nfd2 and the outer conductor inner diameter Dwn... 1. Obtain the second absolute difference of area Sc2 from the cross-sectional area S of the outer conductor; 2. If the first absolute difference of area Sc1 is less than or equal to the second absolute difference of area Sc2, then take the first floating-point number of strands Nfd1 as the number of strands N of the outer conductor; 3. If the first absolute difference of area Sc1 is greater than the second absolute difference of area Sc2, then take the second floating-point number of strands Nfd2 as the number of strands N of the outer conductor; 4. Obtain the outer conductor strand diameter Dxg and outer conductor outer diameter Dw from the outer conductor design parameters based on the outer conductor inner diameter Dwn, the outer conductor cross-sectional area S, and the number of strands N of the outer conductor.

[0122] In one embodiment, the calculation parameters required for the outer conductor parameter calculation rule include the outer conductor inner diameter Dwn and the outer conductor cross-sectional area S. The outer conductor inner diameter, as mentioned above, is generally the outer diameter of the insulation layer Djw, unless otherwise specified. The outer conductor cross-sectional area S is generally calculated based on a determined outer conductor material, as described in detail above, and will not be repeated here. It is also understood that the outer or inner conductor is not a circular ring, but rather a loop formed by multiple strands of wire; see [link to relevant documentation] for details. Figure 3 As shown, Figure 3 This is a schematic diagram of the geometric parameters of the novel self-heating ground wire with an inner and outer conductor structure in Example 1. It is evident that the number of strands will affect the values ​​of the outer conductor strand diameter Dxg and the outer conductor outer diameter Dw. Therefore, it is necessary to first determine the number of outer conductor strands N. The specific solution process includes: obtaining the first floating-point strand number Nfd1 and the second floating-point strand number Nfd2 based on the outer conductor cross-sectional area S and the outer conductor inner diameter Dwn. The difference between the first floating-point strand number Nfd1 and the second floating-point strand number Nfd2 is 1. Specifically, first determine the inner ring area Sn of the outer conductor based on the outer conductor inner diameter Dwn, and add it to the outer conductor cross-sectional area to obtain the outer ring area Sw, thereby determining the assumed outer conductor outer diameter Dw′ and the assumed outer conductor strand diameter Dxg′. The calculation process can be referred to Equation 20:

[0123] Sn = 0.7854Dwn 2

[0124] Sw = Sn + S × 4 / π = Sn + 1.273S

[0125]

[0126] Dxg′=Dw′-Dwn…… (20)

[0127] Furthermore, it is necessary to calculate the angle occupied by each wire of the outer conductor, in order to Figure 3 For example, let O be the axis of the new self-heating grounding wire; D be the axis of the outer conductor strand. OE and OF are the tangents at point O to the outer loop of the outer conductor strand, E and F are the points of tangency, and M is the intersection of OD and the circle. Then we have:

[0128] OM = Dwn

[0129] DF=DE=Dxg′ / 2

[0130] sin∠DOF=DF / (OM+DF)=Dxg1 / (2Dwn+Dxg′)

[0131] ∠DOF=arcsin DF / (OM+DF)=arcsin(Dxg′ / (2Dwn+Dxg′))…… (21)

[0132] Equation 21 can be used to determine the angle (in degrees) occupied by each line of the preset outer conductor, and can further determine the first floating-point number Nfd1 and the second floating-point number Nfd2. The determination process is as follows: The floating-point value Nfd is determined based on the angle occupied by each line of the outer conductor. This floating-point value Nfd is then rounded to obtain the first floating-point number Nfd1. Then, one is added to the first floating-point number Nfd1 to obtain the second floating-point number Nfd2. For a detailed calculation process, please refer to Equation 22.

[0133] Nfd = 180 / ∠DOF

[0134] Nfd1=|Nfd|

[0135] Nfd2=Nfd1+1…… (22)

[0136] The rounding method can be rounding to the nearest integer, or rounding up or down. The specific method can vary depending on the actual situation, and no specific restrictions are imposed here. Further, taking the first floating-point number Nfd1 as an example, the angle occupied by each line of the outer conductor when the first floating-point number Nfd1 is obtained is used to determine the area Sw1 of the first outer conductor. The absolute value difference Scl between the first area and the cross-sectional area S of the outer conductor is then obtained. The calculation process can be found in the following reference:

[0137] ∠DOF1=180 / Nfd1

[0138] OD1=Dwn+DE1=DE1 / sin∠DOF1

[0139] DE1=Dwn / (1 / sin∠DOF1-1)

[0140] Sw1=Nfd1×π×DE1×DE1

[0141] Sc1=|S-Sw1|…… (23)

[0142] Similarly, the calculation of the second absolute area difference Sc2 using the second floating-point number Nfd2 can be referenced in Equation 23, and will not be elaborated further here. Further, the relationship between the first absolute area difference Sc1 and the second absolute area difference Sc2 is determined to identify the number of outer conductor strands N: if the first absolute area difference Sc1 is less than or equal to the second absolute area difference Sc2, then the first floating-point number Nfd1 is taken as the number of outer conductor strands N; if the first absolute area difference Sc1 is greater than the second absolute area difference Sc2, then the second floating-point number Nfd2 is taken as the number of outer conductor strands N. After determining the number of outer conductor strands N, Equation 24 can be used to finally determine the outer conductor strand diameter Dxg and outer conductor outer diameter Dw in the outer conductor design parameters.

[0143] ∠DσF=180 / N

[0144] DE = Dwn / (1 / sin∠DOF-1)

[0145] Dxg=2DE

[0146] Dw = Dwn + Dxg…… (24)

[0147] Therefore, this application can determine the inner conductor design parameters and outer conductor design parameters that meet the actual needs of self-made thermally conductive grounding wires with inner and outer conductor structures by matching different calculation rules according to the set parameters and through differential calculation processing. These design parameters include their respective structural designs and material selections, thus providing a reliable basis for the production of self-made thermally conductive grounding wires. Furthermore, the determined design parameters all feature small size, light weight, and low cost, supporting the production of novel self-heating grounding wires with inner and outer conductor structures while endowing them with superior product attributes without compromising their functional requirements.

[0148] Example 2

[0149] Figure 4 This is a flowchart illustrating the self-made thermally conductive ground wire structure design method based on set parameters according to the first calculation rule in Embodiment 2. For a clearer description of the self-made thermally conductive ground wire structure design method based on set parameters and the first calculation rule in Embodiment 2 of this application, please refer to [link to documentation]. Figures 1 to 4.3 .

[0150] In one embodiment, if the input setting parameters include the maximum resistance of the inner conductor NRmax and the maximum resistance of the outer conductor WRmax, then the self-made thermally conductive ground wire structure design method based on the setting parameters, which corresponds to the first calculation rule, includes the following steps.

[0151] Step S410: Calculate the ratio of the maximum resistances inside and outside the conductor, Bnw, based on the maximum resistances of the inner conductor (NRmax) and the outer conductor (WRmax).

[0152] Step S420: Determine the relationship between the ratio of the internal and external maximum resistances Bnw and the first and second maximum resistance ratios.

[0153] In one embodiment, steps S430, S440, and S450 correspond to the determined relationships, respectively. It should be noted that since each of these three steps has numerous subsequent implementation steps, each step and its branches will be described separately before the next step or branch is described. The corresponding figures are also divided according to this pattern. Figure 4.1 , Figure 4.2 and 4.3 .

[0154] In one implementation, please refer to Figure 4.1 , Figure 4.1 This is a flowchart of the first branch of the self-made thermally conductive ground wire structure design method based on set parameters in the first calculation rule of Example 2, that is, the case where the ratio of the internal and external maximum resistance Bnw is greater than or equal to the first maximum resistance ratio, including steps S430 to S4326.

[0155] Step S430: If the ratio of the maximum resistance between the inner and outer conductors Bnw is greater than or equal to the first maximum resistance ratio, then the outer conductor material in the outer conductor design parameters is selected as the first material. The cross-sectional area S of the outer conductor is determined according to the first material, and the outer conductor parameter calculation rules are matched to determine the outer conductor design parameters.

[0156] Step S431: Assuming the inner conductor material is selected as the second material, obtain the resistance Rng per kilometer when the inner conductor material is selected as the second material;

[0157] Step S432: Determine whether the resistance Rng per kilometer is greater than the maximum resistance NRmax of the inner conductor:

[0158] Step S4321: If the resistance per kilometer Rng is less than or equal to the maximum resistance NRmax of the inner conductor, then the inner conductor material is selected as the second material in the inner conductor design parameters, and the inner conductor parameter calculation rules are matched to determine the inner conductor design parameters.

[0159] Step S4322: If the resistance per kilometer Rng is greater than the maximum resistance of the inner conductor NRmax, then obtain the inner conductor material resistance ratio Bdz by using the resistance per kilometer Rng and the maximum resistance of the inner conductor NRmax.

[0160] Step S4322 is followed by step S4323: determining the relationship between the inner conductor material resistance ratio Bdz and the first inner conductor material resistance ratio and the second inner conductor material resistance ratio.

[0161] Step S4324: If the inner conductor material resistance ratio Bdz is less than or equal to the first inner conductor material resistance ratio, then the inner conductor material is selected as the fourth material in the inner conductor design parameters. The inner conductor cross-sectional area Sng is determined according to the fourth material, and the inner conductor parameter calculation rules are matched to obtain the corresponding inner conductor design parameters.

[0162] Step S4325: If the inner conductor material resistance ratio Bdz is greater than the first inner conductor material resistance ratio and less than or equal to the second inner conductor material resistance ratio, then the inner conductor material is determined to be the third material in the inner conductor design parameters. The inner conductor cross-sectional area Sng is determined according to the third material, and the inner conductor parameter calculation rules are matched to obtain the corresponding inner conductor design parameters.

[0163] Step S4326: If the resistivity ratio Bdz of the inner conductor material selection is greater than the resistivity ratio of the second inner conductor material selection, then the inner conductor structure design in the inner conductor design parameters is determined to be divided into two layers, namely the inner inner conductor layer and the outer inner conductor layer; the material of the outer inner conductor layer is selected as the first material, and the material of the inner inner conductor layer is selected as the second material; the cross-sectional area Sng of the inner inner conductor layer is determined according to the second material, and the inner conductor parameter calculation rules are matched to obtain the corresponding inner conductor design parameters; the cross-sectional area S of the outer inner conductor layer is determined according to the first material, and the outer conductor parameter calculation rules are matched to determine the outer conductor design parameters.

[0164] In one embodiment, the above calculation branch is for the case where the ratio of the maximum resistance between the inner and outer conductors, Bnw, is greater than or equal to the first maximum resistance ratio. The characteristic of this branch is that the outer conductor material in the outer conductor design parameters is first determined as the first material. The subsequent steps involve determining the inner conductor material through calculation and further determining the design parameters. The first material is preferably aluminum, the second material is steel, the third material is aluminum-clad steel LB40, and the fourth material is aluminum-clad steel LB27. For aluminum-clad steel LB40 or aluminum-clad steel LB27, these are types of aluminum-clad steel wire in national standards; specific details can be found in the relevant national standards. Simultaneously, the calculation process for determining the cross-sectional area Sng of the inner conductor based on the inner conductor material selection, or the cross-sectional area S of the outer conductor based on the outer conductor material selection, mainly requires obtaining the resistivity ρ and the tensile strength σ corresponding to the material, and substituting them into Equation 2 or Equation 4 for calculation. The relevant calculation steps have been described in detail in Embodiment 1 of this application, and can be referred to above; they will not be repeated here.

[0165] In one implementation, please refer to Figure 4.2 , Figure 4.2 This is a flowchart of the second branch of the self-made thermally conductive ground wire structure design method based on set parameters in the first calculation rule of Example 2, that is, the case where the ratio of the internal and external maximum resistance Bnw is less than or equal to the second maximum resistance ratio, including steps S440 to S4424.

[0166] Step S440: If the ratio of the maximum resistance between the inner and outer conductors Bnw is less than or equal to the second maximum resistance ratio, then the inner conductor material is selected as the first material in the inner conductor design parameters. The cross-sectional area Sng of the inner conductor is obtained based on the first material, and the inner conductor parameter calculation rules are matched to determine the inner conductor design parameters.

[0167] Step S441: Assuming the outer conductor material is selected as the second material, determine the first steel wire cross-sectional area Swg1, the second steel wire cross-sectional area Swg2, and the outer conductor cross-sectional area ratio BZ based on the second material.

[0168] Step S442: Determine the relationship between the cross-sectional area Swg1 of the first steel wire, the cross-sectional area Swg2 of the second steel wire, and the ratio of the cross-sectional area of ​​the outer conductor to BZ:

[0169] Step S4421: If the cross-sectional area Swg1 of the first steel wire is greater than the cross-sectional area Swg2 of the second steel wire, then the material of the outer conductor in the outer conductor design parameters is determined to be the second material; the cross-sectional area Swg1 of the first steel wire is taken as the cross-sectional area S of the outer conductor, and the calculation rules of the outer conductor parameters are matched to determine the design parameters of the outer conductor.

[0170] Step S4422: If the cross-sectional area Swg1 of the first steel wire is less than the cross-sectional area Swg2 of the second steel wire and the cross-sectional area ratio BZ of the outer conductor is less than or equal to the first area ratio, then the outer conductor material is selected as the second material in the outer conductor design parameters; the cross-sectional area Swg2 of the second steel wire is taken as the cross-sectional area S of the outer conductor, and the calculation rules of the outer conductor parameters are matched to determine the outer conductor design parameters.

[0171] Step S4423: If the cross-sectional area Swg1 of the first steel wire is less than the cross-sectional area BZ2 of the second steel wire and the cross-sectional area ratio BZ of the outer conductor is greater than the first area ratio and less than the second area ratio, then the outer conductor material is selected as the fourth material in the outer conductor design parameters. The cross-sectional area S of the outer conductor is determined according to the fourth material, and the outer conductor parameter calculation rules are matched to determine the outer conductor design parameters.

[0172] Step S4424: If the cross-sectional area Swg1 of the first steel wire is less than the cross-sectional area Swg2 of the second steel wire and the cross-sectional area ratio BZ of the outer conductor is greater than or equal to the second area ratio, then the outer conductor material is selected as the third material in the outer conductor design parameters. The cross-sectional area S of the outer conductor is determined according to the third material, and the outer conductor parameter calculation rules are matched to determine the outer conductor design parameters.

[0173] In one embodiment, the above calculation branch describes the maximum internal and external resistance ratio Bnw being less than or equal to the second maximum resistance ratio. The characteristic of this branch is that the outer conductor material in the inner conductor design parameters can be determined first as the first material. Subsequent steps involve calculating and determining the outer conductor material selection, and further determining the design parameters. The relevant calculation steps have been described in detail in Embodiment 1 of this application, and can be referred to above for specific details; they will not be repeated here.

[0174] In one implementation, please refer to Figure 4.3 , Figure 4.3 This is a flowchart of the third branch of the self-made thermally conductive ground wire structure design method based on set parameters in the first calculation rule of Example 2. That is, the case where the ratio of the internal and external maximum resistance Bnw is greater than the second maximum resistance ratio and less than the first maximum resistance ratio, including steps S450 to S452.

[0175] Step S450: If the ratio of the maximum resistance between the inner and outer conductors, Bnw, is greater than the second maximum resistance ratio but less than the first maximum resistance ratio, then the material selection for both the inner and outer conductors in the outer conductor design parameters is determined to be the third material.

[0176] Step S451: Determine the cross-sectional area Sng of the inner conductor based on the third material, and match the inner conductor parameter calculation rules to determine the inner conductor design parameters.

[0177] Step S452: Determine the cross-sectional area S of the outer conductor based on the third material, and match the calculation rules for the outer conductor parameters to determine the design parameters of the outer conductor.

[0178] In one embodiment, the above calculation branch is where the ratio of the inner and outer maximum resistances, Bnw, is greater than the second maximum resistance ratio and less than the first maximum resistance ratio. The characteristic of this branch is that it can directly determine that both the inner conductor material selection and the outer conductor material selection in the design parameters are the third material. Furthermore, the cross-sectional area Sng of the inner conductor and the cross-sectional area S of the outer conductor can be calculated separately based on the third material, and the inner conductor parameter calculation rules are matched to determine the inner conductor design parameters, and the outer conductor parameter calculation rules are matched to determine the outer conductor design parameters.

[0179] In one embodiment, it can be seen that at the end of each branch in this embodiment, the inner conductor parameter calculation rule or the outer conductor parameter calculation rule is matched. It is known that the two calculation rules are important components in determining the conductor and ground wire design parameters, and these two rules have been described in detail in the previous embodiment one, which can be referred to in detail above, and will not be repeated here.

[0180] Therefore, this application can, when input parameters include minimum breaking force Fmin, maximum inner conductor resistance NRmax, and maximum outer conductor resistance WRmax, match the first calculation rule to determine the inner conductor design parameters and outer conductor design parameters that meet the practical requirements of a self-made thermally conductive ground wire with inner and outer conductor structures. These design parameters include their respective structural designs and material selections, thus providing a reliable basis for the production of self-made thermally conductive ground wires. Furthermore, the determined design parameters all feature small size, light weight, and low cost, supporting the production of novel self-heating ground wires with inner and outer conductor structures while endowing them with superior product attributes without compromising their functional requirements.

[0181] Example 3

[0182] Figure 5 This is a flowchart illustrating the self-made thermally conductive ground wire structure design method based on set parameters according to the second calculation rule in Embodiment 3. For a clearer description of the self-made thermally conductive ground wire structure design method based on set parameters according to the second calculation rule in Embodiment 3 of this application, please refer to [link to documentation]. Figures 1 to 3 , Figure 5 .

[0183] In one embodiment, if the input set parameters include minimum breaking force Fmin, maximum inner conductor resistance NRmax, and minimum outer conductor resistance WRmin, then the self-made thermally conductive ground wire structure design method based on the set parameters, which corresponds to the second calculation rule, includes the steps described below.

[0184] Step S510: Determine that the inner conductor material is selected as the first material in the inner conductor design parameters, and the outer conductor material is selected as the second material in the outer conductor design parameters.

[0185] Step S520: Calculate the first outer conductor cross-sectional area Swg1 based on the minimum breaking force Fmin and the second breaking strength σG corresponding to the second material; calculate the second outer conductor cross-sectional area Swg2 based on the minimum resistance WRmin and the second resistivity ρG of the outer conductor.

[0186] Step S530: When the second outer conductor cross-sectional area Swg2 is greater than or equal to the first outer conductor cross-sectional area Swg1, the first outer conductor cross-sectional area Swg1 is taken as the outer conductor cross-sectional area S, and the outer conductor parameter calculation rules are matched to determine the outer conductor design parameters.

[0187] In one embodiment, if the second outer conductor cross-sectional area Swg2 is smaller than the first outer conductor cross-sectional area Swg1, then this parameter cannot be used to design a usable novel self-heating grounding wire, and the calculation ends. Therefore, in a preferred embodiment, subsequent calculations are only performed when the second outer conductor cross-sectional area Swg2 is greater than or equal to the first outer conductor cross-sectional area Swg1.

[0188] Step S540: Calculate the cross-sectional area Snl of the inner conductor based on the maximum resistance NRmax of the inner conductor and the first resistivity ρL corresponding to the first material, and match the inner conductor parameter calculation rules to determine the inner conductor design parameters.

[0189] In one embodiment, matching the calculation rules for the inner conductor parameters or the calculation rules for the outer conductor parameters is a necessary step in the process of this embodiment. It is understood that these two calculation rules are important components in determining the design parameters of the conductor and ground wire, and these two rules have already been described in detail in Embodiment 1 above; please refer to the preceding text for details, and they will not be repeated here. Similarly, the determination of the cross-sectional area of ​​the inner conductor or the outer conductor based on the determined material has also been described in the preceding text for details, please refer to the preceding text for details.

[0190] Therefore, this application can, when input parameters include minimum breaking force Fmin, maximum inner conductor resistance NRmax, and minimum outer conductor resistance WRmin, match the second calculation rule to determine the inner conductor design parameters and outer conductor design parameters that meet the practical requirements of self-made thermally conductive grounding wires with inner and outer conductor structures. These design parameters include their respective structural designs and material selections, thus providing a reliable basis for the production of self-made thermally conductive grounding wires. Furthermore, the determined design parameters all feature small size, light weight, and low cost, supporting the production of novel self-heating grounding wires with inner and outer conductor structures while endowing them with superior product attributes without compromising their functional requirements.

[0191] Example 4

[0192] Figure 6 This is a flowchart illustrating the self-made thermally conductive ground wire structure design method based on set parameters according to the third calculation rule in Embodiment 4. For a clearer description of the self-made thermally conductive ground wire structure design method based on set parameters and the third calculation rule in Embodiment 4 of this application, please refer to [link to documentation]. Figures 1 to 3 , Figure 6 .

[0193] In one embodiment, if the input set parameters include minimum breaking force Fmin, minimum inner conductor resistance NRmin, and maximum outer conductor resistance WRmax, then the self-made thermally conductive ground wire structure design method based on the set parameters, which corresponds to the third calculation rule, includes the steps described below.

[0194] Step S610: Determine that the inner conductor material in the inner conductor design parameters is selected as the second material, and the outer conductor material in the outer conductor design parameters is selected as the first material.

[0195] Step S620: Calculate the first inner conductor cross-sectional area Sng1 based on the minimum breaking force Fmin and the second breaking strength σG corresponding to the second material; calculate the second inner conductor cross-sectional area Sng2 based on the minimum resistance NRmin and the second resistivity ρG of the inner conductor.

[0196] Step S630: When the second inner conductor cross-sectional area Sng2 is greater than or equal to the first inner conductor cross-sectional area Sng1, the second inner conductor cross-sectional area Sng2 is used as the inner conductor cross-sectional area Sng, and the inner conductor parameter calculation rules are matched to determine the inner conductor design parameters.

[0197] In one embodiment, if the second inner conductor cross-sectional area Sng2 is smaller than the first inner conductor cross-sectional area Sng1, then this parameter cannot be used to design a usable novel self-heating grounding wire, and the calculation ends. Therefore, in a preferred embodiment, subsequent calculations are performed only when the second inner conductor cross-sectional area Sng2 is greater than or equal to the first inner conductor cross-sectional area Sng1.

[0198] Step S640: Calculate the cross-sectional area S of the outer conductor based on the maximum resistance WRmax of the outer conductor and the first resistivity ρL corresponding to the first material, and match the calculation rules of the outer conductor parameters to determine the design parameters of the outer conductor.

[0199] In one embodiment, matching the calculation rules for the inner conductor parameters or the calculation rules for the outer conductor parameters is a necessary step in the process of this embodiment. It is understood that these two calculation rules are important components in determining the design parameters of the conductor and ground wire, and these two rules have already been described in detail in Embodiment 1 above; please refer to the preceding text for details, and they will not be repeated here. Similarly, the determination of the cross-sectional area of ​​the inner conductor or the outer conductor based on the determined material has also been described in the preceding text for details, please refer to the preceding text for details.

[0200] Therefore, this application can, by matching the input parameters including minimum breaking force Fmin, minimum inner conductor resistance NRmin, and maximum outer conductor resistance WRmax, determine the inner conductor design parameters and outer conductor design parameters that meet the practical requirements of self-made thermally conductive grounding wires with inner and outer conductor structures. These design parameters include their respective structural designs and material selections, thus providing a reliable basis for the production of self-made thermally conductive grounding wires. Furthermore, the determined design parameters all feature small size, light weight, and low cost, supporting the production of novel self-heating grounding wires with inner and outer conductor structures while endowing them with superior product attributes without compromising their functional requirements.

[0201] Example 5

[0202] Figure 7 This is a flowchart illustrating the self-made thermally conductive ground wire structure design method based on set parameters according to the fourth calculation rule in Embodiment 5. For a clearer description of the self-made thermally conductive ground wire structure design method based on set parameters according to the fourth calculation rule in Embodiment 5 of this application, please refer to [link to documentation]. Figures 1 to 3 , Figure 7 .

[0203] In one embodiment, if the input design setting parameters include minimum breaking force Fmin, minimum inner conductor resistance NRmin, and minimum outer conductor resistance WRmin, then the self-made thermally conductive ground wire structure design method based on the setting parameters, which corresponds to the fourth calculation rule, includes the steps described below.

[0204] Step S710: Determine the conductor material selection as the second material in the inner conductor design parameters and outer conductor design parameters.

[0205] Step S720: Calculate the maximum cross-sectional area NSmax of the inner conductor and the maximum cross-sectional area WSmax of the outer conductor based on the minimum resistance NRmin of the inner conductor, the minimum resistance WRmin of the outer conductor, and the second material and the corresponding second resistivity ρG.

[0206] Step S730: Calculate the conductor-to-ground wire breaking force Fdd based on the maximum cross-sectional area NSmax of the inner conductor, the maximum cross-sectional area WSmax of the outer conductor, the second material, and the corresponding second tensile strength σG.

[0207] In one embodiment, since both the inner conductor 1 and the outer conductor 4 are made of the second material, the second resistivity ρG corresponding to the second material can be substituted into Equation 4 with the minimum resistance NRmin of the inner conductor and the minimum resistance WRmin of the outer conductor to obtain Equation 16, which is used to calculate the maximum cross-sectional area NSmax of the inner conductor and the maximum cross-sectional area WSmax of the outer conductor. Further, the maximum cross-sectional area NSmax of the inner conductor, the maximum cross-sectional area WSmax of the outer conductor, the second material, and the corresponding second tensile strength σG are substituted into Equation 2 to calculate the maximum tensile force NFmax of the inner conductor and the maximum tensile force WFmax of the outer conductor. These two are then added together to obtain the tensile force Fdd of the conductor-to-ground wire. The specific calculation process can be found in Equation 17.

[0208] Step S740: If the conductor breaking force Fdd is greater than or equal to the minimum breaking force Fmin, then the cross-sectional area of ​​the inner conductor NSsc and the cross-sectional area of ​​the outer conductor WSsc for production are calculated according to the design parameter adjustment coefficient Ktj, the conductor breaking force Fdd, the maximum cross-sectional area of ​​the inner conductor NSmax, and the maximum cross-sectional area of ​​the outer conductor WSmax.

[0209] In one embodiment, before further calculations, it is first determined whether the breaking force Fdd of the conductor is greater than the minimum breaking force Fmin of the conductor: if it is less, it is determined that the design parameters cannot be met, and the relevant new self-heating conductor cannot be designed; if it is greater, the next step of design is continued. The area coefficient ks is calculated by obtaining the preset design parameter adjustment coefficient Ktj and the minimum breaking force Fmin. Then, the cross-sectional area NSsc of the inner conductor for production and the cross-sectional area WSsc of the outer conductor for production are calculated by the area coefficient ks, the maximum cross-sectional area NSmax, and the maximum cross-sectional area WSmax of the outer conductor, respectively. The specific calculation process can be referred to Equation 18.

[0210] Step S750: Use the cross-sectional area NSsc of the inner conductor for production as the cross-sectional area Sng of the inner conductor, and match the inner conductor parameter calculation rules to determine the inner conductor design parameters.

[0211] Step S760: Use the cross-sectional area WSsc of the outer conductor for production as the cross-sectional area S of the outer conductor, and match the calculation rules of the outer conductor parameters to determine the design parameters of the outer conductor.

[0212] In one embodiment, the cross-sectional area NSsc of the inner conductor used for production can be used as the cross-sectional area Sng of the inner conductor, and the inner conductor parameter calculation rules can be matched to determine the inner conductor design parameters; the cross-sectional area WSsc of the outer conductor used for production can be used as the cross-sectional area S of the outer conductor, and the outer conductor parameter calculation rules can be matched to determine the outer conductor design parameters. The inner conductor parameter calculation rules and the outer conductor parameter calculation rules are important components in determining the conductor and ground wire design parameters, and these two rules have been described in detail in Embodiment 1 above, which can be referred to therein, and will not be repeated here.

[0213] Therefore, this application can match the fourth calculation rule with the input parameters including minimum breaking force Fmin, minimum inner conductor resistance NRmin, and minimum outer conductor resistance WRmin, to determine the inner conductor design parameters and outer conductor design parameters that meet the practical requirements of self-made thermally conductive grounding wires with inner and outer conductor structures. These design parameters include their respective structural designs and material selections, thus providing a reliable basis for the production of self-made thermally conductive grounding wires. Furthermore, the determined design parameters all feature small size, light weight, and low cost, supporting the production of novel self-heating grounding wires with inner and outer conductor structures while endowing them with superior product attributes without compromising their functional requirements.

[0214] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0215] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A method for designing a self-made thermally conductive ground wire structure based on set parameters, characterized in that, Includes the following steps: Obtain the set parameters, which include one of the inner conductor maximum resistance and the inner conductor minimum resistance, one of the outer conductor maximum resistance and the outer conductor minimum resistance, and the minimum breaking force; The matching calculation rules are based on the set parameters; The design parameters of the conductor and ground wire are determined according to the calculation rules. The design parameters include the design parameters of the inner conductor and the design parameters of the outer conductor. The design parameters also include the material selection and structural design of the inner conductor and the outer conductor. The matching calculation rule based on the set parameters includes: When the set parameters include the maximum resistance of the inner conductor and the maximum resistance of the outer conductor, the first calculation rule is matched; When the set parameters include the maximum resistance of the inner conductor and the minimum resistance of the outer conductor, the second calculation rule is matched; When the set parameters include the minimum resistance of the inner conductor and the maximum resistance of the outer conductor, the third calculation rule is matched; When the set parameters include the minimum resistance of the inner conductor and the minimum resistance of the outer conductor, the fourth calculation rule is matched; When the calculation rule is the first calculation rule, determining the design parameters according to the calculation rule includes: Calculate the ratio of the maximum resistance between the inner and outer conductors based on the maximum resistance of the inner conductor and the maximum resistance of the outer conductor. If the ratio of the maximum resistance between the inner and outer conductors is greater than or equal to the first maximum resistance ratio, then the outer conductor material in the outer conductor design parameters is determined to be the first material; assuming the inner conductor material is selected as the second material, the resistance per kilometer is calculated based on the minimum breaking force and the second breaking strength and second resistivity corresponding to the second material; the inner conductor design parameters are obtained by matching the resistance per kilometer with the maximum resistance of the inner conductor according to the inner conductor material selection rules; the cross-sectional area of ​​the outer conductor is calculated based on the maximum resistance of the outer conductor and the first resistivity corresponding to the first material, and the outer conductor parameter calculation rules are matched to determine the outer conductor design parameters. If the ratio of the maximum resistance between the inner and outer conductors is less than or equal to the second maximum resistance ratio, then the inner conductor material in the inner conductor design parameters is determined to be the first material, and the cross-sectional area of ​​the inner conductor is calculated based on the maximum resistance of the inner conductor and the first resistivity corresponding to the first material. The inner conductor design parameters are determined by matching the inner conductor parameter calculation rules, and the outer conductor design parameters are obtained by using the outer conductor material selection rules. If the ratio of the maximum resistance between the inner and outer conductors is greater than the second maximum resistance ratio and less than the first maximum resistance ratio, then it is determined that the selection of the inner conductor material and the selection of the outer conductor material in the design parameters are both the third material. The cross-sectional area of ​​the inner conductor is calculated based on the minimum breaking force, the maximum resistance of the inner conductor, and the third resistivity and third breaking strength corresponding to the third material, and the inner conductor design parameters are determined by matching the inner conductor parameter calculation rules. The cross-sectional area of ​​the outer conductor is calculated based on the minimum breaking force, the maximum resistance of the outer conductor, and the third resistivity and third breaking strength corresponding to the third material, and the outer conductor design parameters are determined by matching the outer conductor parameter calculation rules.

2. The self-made thermally conductive ground wire structure design method based on set parameters as described in claim 1, characterized in that, The rules for selecting the inner conductor material include: If the resistance per kilometer is less than or equal to the maximum resistance of the inner conductor, then the inner conductor material is selected as the second material in the inner conductor design parameters, and the cross-sectional area of ​​the inner conductor is calculated based on the minimum breaking force and the second breaking strength, and the inner conductor parameter calculation rules are matched to determine the inner conductor design parameters; If the resistance per kilometer is greater than the maximum resistance of the inner conductor, then the inner conductor material resistance ratio is obtained based on the resistance per kilometer and the maximum resistance of the inner conductor, and the corresponding design parameters are obtained by matching the inner conductor material resistance ratio with the inner conductor material resistance ratio calculation rules.

3. The self-made thermally conductive ground wire structure design method based on set parameters as described in claim 2, characterized in that, The matching inner conductor material resistivity calculation rule is used to obtain the corresponding design parameters, including: If the resistivity of the inner conductor material is less than or equal to the resistivity of the first inner conductor material, the inner conductor material is determined to be the fourth material in the inner conductor design parameters. The cross-sectional area of ​​the inner conductor is calculated based on the minimum breaking force, the maximum resistance of the inner conductor, and the fourth breaking strength and fourth resistivity corresponding to the fourth material. The inner conductor design parameters are obtained by matching the inner conductor parameter calculation rules. If the resistivity ratio of the inner conductor material selection is greater than the first inner conductor material selection resistivity ratio and less than or equal to the second inner conductor material selection resistivity ratio, the inner conductor material selection in the inner conductor design parameters is determined to be the third material. The cross-sectional area of ​​the inner conductor is calculated based on the minimum breaking force, the maximum resistance of the inner conductor, the third breaking strength corresponding to the third material, and the third resistivity. The corresponding inner conductor design parameters are obtained by matching the inner conductor parameter calculation rules. If the resistivity ratio of the inner conductor material is greater than the resistivity ratio of the second inner conductor material, the inner conductor structure design in the inner conductor design parameters is determined to be divided into two layers, namely the inner conductor inner layer and the inner conductor outer layer; the material of the inner conductor outer layer is selected as the first material, and the material of the inner conductor inner layer is selected as the second material; the cross-sectional area of ​​the inner conductor inner layer is calculated according to the minimum breaking force and the second breaking strength corresponding to the second material, and the inner conductor parameter calculation rules are matched to obtain the corresponding inner conductor inner layer design parameters; the cross-sectional area of ​​the inner conductor outer layer is calculated according to the resistance per kilometer, the maximum resistance of the inner conductor, and the first resistivity corresponding to the first material, and the outer conductor parameter calculation rules are matched to determine the inner conductor outer layer design parameters.

4. The self-made thermally conductive ground wire structure design method based on set parameters as described in claim 3, characterized in that, The process of obtaining the design parameters through the selection rules for the outer conductor material includes: The cross-sectional area of ​​the first steel wire is calculated based on the minimum breaking force and the second breaking strength corresponding to the second material; the cross-sectional area of ​​the second steel wire is calculated based on the maximum resistance of the outer conductor and the second resistivity; and the cross-sectional area ratio of the outer conductor is calculated based on the cross-sectional area of ​​the first steel wire and the cross-sectional area of ​​the second steel wire. If the cross-sectional area of ​​the first steel wire is greater than the cross-sectional area of ​​the second steel wire, then the outer conductor material in the outer conductor design parameters is determined to be the second material, the cross-sectional area of ​​the first steel wire is used as the cross-sectional area of ​​the outer conductor, and the calculation rules of the outer conductor parameters are matched to determine the outer conductor design parameters; If the cross-sectional area of ​​the first steel wire is smaller than the cross-sectional area of ​​the second steel wire and the ratio of the outer conductor cross-sectional area is less than or equal to the first area ratio, then the outer conductor material in the outer conductor design parameters is determined to be the second material; the cross-sectional area of ​​the second steel wire is used as the cross-sectional area of ​​the outer conductor, and the calculation rules of the outer conductor parameters are matched to determine the outer conductor design parameters; If the cross-sectional area of ​​the first steel wire is smaller than the cross-sectional area of ​​the second steel wire and the cross-sectional area ratio of the outer conductor is greater than the first area ratio and less than the second area ratio, then the outer conductor material in the outer conductor design parameters is determined to be the fourth material; and the cross-sectional area of ​​the outer conductor is calculated based on the minimum breaking force, the maximum resistance of the outer conductor, and the fourth breaking strength and fourth resistivity corresponding to the fourth material, and the outer conductor parameter calculation rules are matched to determine the outer conductor design parameters; If the cross-sectional area of ​​the first steel wire is smaller than the cross-sectional area of ​​the second steel wire and the cross-sectional area ratio of the outer conductor is greater than or equal to the second area ratio, then the outer conductor material in the outer conductor design parameters is determined to be the third material; and the cross-sectional area of ​​the outer conductor is calculated based on the minimum breaking force, the maximum resistance of the outer conductor, and the third breaking strength and third resistivity corresponding to the third material, and the outer conductor design parameters are determined by matching the calculation rules of the outer conductor parameters.

5. The self-made thermally conductive ground wire structure design method based on set parameters as described in claim 1, characterized in that, When the calculation rule is the second calculation rule The step of determining the design parameters according to the calculation rules includes: The inner conductor material is selected as the first material in the inner conductor design parameters, and the outer conductor material is selected as the second material in the outer conductor design parameters. The first outer conductor cross-sectional area is calculated based on the minimum tensile force and the second tensile strength corresponding to the second material, and the second outer conductor cross-sectional area is calculated based on the minimum resistance of the outer conductor and the second resistivity. If the cross-sectional area of ​​the second outer conductor is greater than or equal to the cross-sectional area of ​​the first outer conductor, the cross-sectional area of ​​the inner conductor is calculated based on the maximum resistance of the inner conductor and the first resistivity corresponding to the first material, and the inner conductor parameter calculation rules are matched to determine the design parameters of the inner conductor. The first outer conductor cross-sectional area is used as the cross-sectional area of ​​the outer conductor, and the outer conductor parameter calculation rules are matched to determine the outer conductor design parameters.

6. The self-made thermally conductive ground wire structure design method based on set parameters as described in claim 1, characterized in that, When the calculation rule is the third calculation rule. The step of determining the design parameters according to the calculation rules includes: The inner conductor material in the inner conductor design parameters is selected as the second material, and the outer conductor material in the outer conductor design parameters is selected as the first material. The first inner conductor cross-sectional area is calculated based on the minimum tensile force and the second tensile strength corresponding to the second material, and the second inner conductor cross-sectional area is calculated based on the minimum resistance of the inner conductor and the second resistivity. If the second inner conductor cross-sectional area is greater than or equal to the first inner conductor cross-sectional area, then the second inner conductor cross-sectional area is used as the inner conductor cross-sectional area, and the inner conductor parameter calculation rules are matched to determine the inner conductor design parameters. The cross-sectional area of ​​the outer conductor is calculated based on the maximum resistance of the outer conductor and the first resistivity corresponding to the first material, and the outer conductor parameter calculation rules are matched to determine the design parameters of the outer conductor.

7. The self-made thermally conductive ground wire structure design method based on set parameters as described in claim 1, characterized in that, When the calculation rule is the fourth calculation rule. The step of determining the design parameters according to the calculation rules includes: The conductor material in the inner conductor design parameters and the outer conductor design parameters is selected as the second material; Calculate the maximum cross-sectional area of ​​the inner conductor and the maximum cross-sectional area of ​​the outer conductor based on the minimum resistance of the inner conductor, the minimum resistance of the outer conductor, the second material, and the corresponding second resistivity, respectively. The breaking force of the conductor-to-ground wire is calculated based on the maximum cross-sectional area of ​​the inner conductor, the maximum cross-sectional area of ​​the outer conductor, the second material, and the corresponding second tensile strength. If the breaking force of the conductor is greater than or equal to the minimum breaking force, the cross-sectional area of ​​the inner conductor and the cross-sectional area of ​​the outer conductor for production are calculated according to the design parameter adjustment coefficient, the breaking force of the conductor, the maximum cross-sectional area of ​​the inner conductor, and the maximum cross-sectional area of ​​the outer conductor, respectively. The cross-sectional area of ​​the inner conductor used for production is used as the cross-sectional area of ​​the inner conductor, and the inner conductor parameter calculation rules are matched to determine the design parameters of the inner conductor; the cross-sectional area of ​​the outer conductor used for production is used as the cross-sectional area of ​​the outer conductor, and the outer conductor parameter calculation rules are matched to determine the design parameters of the outer conductor.

8. The self-made thermally conductive ground wire structure design method based on set parameters as described in claim 1, characterized in that, The matching of the inner conductor parameter calculation rules to determine the inner conductor design parameters includes: Obtain the conductor and ground wire attribute requirement information, and determine the number of inner conductor wire strands based on the conductor and ground wire attribute requirement information; The diameter of the inner conductor strands, the inner conductor diameter, and the outer diameter of the insulation layer are determined based on the cross-sectional area of ​​the inner conductor and the number of inner conductor strands.

9. The self-made thermally conductive ground wire structure design method based on set parameters as described in claim 1, characterized in that, The rules for calculating the matching outer conductor parameters are used to determine the outer conductor design parameters, including: Obtain the inner diameter of the outer conductor; obtain the first number of floating-point segments and the second number of floating-point segments based on the cross-sectional area of ​​the outer conductor and the inner diameter of the outer conductor, wherein the difference between the first number of floating-point segments and the second number of floating-point segments is 1; A first absolute difference in area is obtained based on the first number of floating-point segments, the inner diameter of the outer conductor, and the cross-sectional area of ​​the outer conductor; a second absolute difference in area is obtained based on the second number of floating-point segments, the inner diameter of the outer conductor, and the cross-sectional area of ​​the outer conductor. If the absolute difference of the first area is less than or equal to the absolute difference of the second area, then the first floating-point number of shares is taken as the number of shares of the outer conductor line; if the absolute difference of the first area is greater than the absolute difference of the second area, then the second floating-point number of shares is taken as the number of shares of the outer conductor line. The outer conductor strand diameter and outer conductor outer diameter in the outer conductor design parameters are obtained based on the outer conductor inner diameter, the outer conductor cross-sectional area, and the number of outer conductor strands.

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