Method and equipment for detecting flame retardance of cable material

Abstract

The invention belongs to the technical field of cable material detection, and provides a cable material flame retardance detection method and equipment thereof.The method comprises the steps that cable material flame retardance detection items are obtained; acquiring detection influence factors of flame retardance detection of the cable material, and formulating a detection process according to the detection influence factors; and according to the detection process, based on the detection items, performing flame retardance detection on the cable material, and analyzing the combustion change condition of the cable material in combination with video recording equipment to generate a flame retardance detection report. According to the detection process and based on the detection items, flame retardance detection and cable material combustion change condition analysis are performed on the cable material, and the flame retardance detection report is generated, so that the detection quality and the detection effect of the cable material are improved, detection data feedback is provided for processing and production of the cable material, and improvement of the production process of the cable material is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of cable material detection, and in particular to a method and equipment for detecting flame retardancy of cable materials. Background Art

[0002] The full name of cable material is plastic used for insulation and sheathing of wires and cables. Cable materials are used to make the outer insulation protective layer of cable products, including rubber, plastic, nylon and other varieties;

[0003] The flame retardant performance of cable materials is an important indicator to measure the quality of cable materials. Flame retardant testing can ensure the safe and efficient use of cables. The existing flame retardant testing items and processes of cable materials are not comprehensive and thorough, which affects the testing effect of cable materials. At the same time, there is a lack of effective technical means to provide certain feedback for the processing of cable materials through flame retardant testing of cable materials.

[0004] Therefore, it is necessary to provide a method and equipment for detecting flame retardancy of cable materials. Summary of the invention

[0005] The present invention provides a flame retardancy detection method and equipment for cable materials. According to the detection process and based on the detection items, the flame retardancy detection of the cable material and the combustion change analysis of the cable material are performed, and a flame retardancy detection report is generated, thereby improving the detection quality and detection effect of the cable material, providing detection data feedback for the processing and production of the cable material, and being conducive to the improvement of the production process of the cable material.

[0006] The present invention provides a cable material flame retardancy detection method and equipment thereof, comprising:

[0007] Obtain the test items for flame retardancy of cable materials;

[0008] Obtain the influencing factors of flame retardancy testing of cable materials, and formulate the testing process based on the influencing factors;

[0009] According to the testing process and based on the testing items, the cable materials are tested for flame retardancy, and the combustion changes of the cable materials are analyzed in combination with recording equipment to generate a flame retardancy test report.

[0010] Furthermore, the test items include flame spread time, peak heat release rate, total heat release, combustion growth rate index, peak smoke production rate, total smoke production, combustion dripping material specifications and vertical flame spread height.

[0011] Furthermore, the influencing factors of the flame retardancy test of cable materials are obtained, and the testing process is formulated according to the influencing factors, including:

[0012] Obtain the influencing factors of cable material flame retardancy testing, including cable material specifications, tape type, number of tape layers, processing method, conductor cross-section specifications, and fire-resistant tape cross-section specifications;

[0013] Based on the detection influencing factors, a first detection sub-process corresponding to the cable material specifications, a second detection sub-process corresponding to the tape type and the number of tape layers, a third detection sub-process corresponding to the processing method, and a fourth detection sub-process corresponding to the conductor cross-sectional specifications and the fire-resistant tape cross-sectional specifications are formulated;

[0014] The first detection sub-process, the second detection sub-process, the third detection sub-process and the fourth detection sub-process are summarized to generate a detection process.

[0015] Furthermore, according to the testing process and based on the testing items, the cable material is tested for flame retardancy, including:

[0016] According to the testing process and based on the testing items, the cable material is tested for heat release, smoke release and carbon formation performance to obtain the test results;

[0017] According to the test results, the heat release, smoke release and carbon formation performance are evaluated to obtain the evaluation results;

[0018] According to the evaluation results and based on the set test scoring standards, the thermal insulation performance and the number and quality of burning droplets are scored respectively to obtain sub-item scores and a comprehensive score;

[0019] Generate a flame retardancy test data report based on the sub-item scoring values ​​and the comprehensive scoring value.

[0020] Furthermore, according to the test process and based on the test items, the cable material is tested for heat release, smoke release and carbonization performance to obtain test results, including:

[0021] Based on the set judgment criteria corresponding to the flame spread time, the peak value of the heat release rate, the total amount of heat release and the combustion growth rate index, the flame spread time, the peak value of the heat release rate, the total amount of heat release and the combustion growth rate index are tested to obtain a first set of test data, and a heat release detection result is generated according to the first set of test data;

[0022] Based on the set judgment criteria corresponding to the peak value of smoke production rate and the total amount of smoke production, the peak value of smoke production rate and the total amount of smoke production are tested to obtain a second set of test data, and a smoke release detection result is generated according to the second set of test data;

[0023] Based on the set judgment standard corresponding to the combustion dripping material specification, the combustion dripping material specification is tested to obtain a third set of test data, and the carbon forming performance test result is obtained according to the third set of test data;

[0024] Among them, the detection of carbon-forming performance of conductor cross-sectional specifications and refractory belt cross-sectional specifications also includes: based on the set judgment criteria corresponding to the vertical flame spread height, testing the vertical flame spread height to obtain a fourth set of test data, and generating supplementary test results based on the fourth set of test data; the supplementary test results are used to adjust the carbon-forming performance of conductor cross-sectional specifications and refractory belt cross-sectional specifications.

[0025] Furthermore, based on the test results, the heat release, smoke release and carbon formation performance are evaluated to obtain the final evaluation results, including:

[0026] Based on the big data platform, obtain the evaluation model library;

[0027] Based on the evaluation model library, multiple evaluation models are called up for parallel evaluation to obtain multiple evaluation results;

[0028] Based on multiple evaluation results, comparative analysis is performed using the set comparative analysis model to obtain the optimal evaluation result;

[0029] The best evaluation result is taken as the final evaluation result.

[0030] Furthermore, the burning changes of cable materials are analyzed by combining with video recording equipment to generate a flame retardancy test report, including:

[0031] Use video recording equipment to collect video of the combustion process of cable material flame retardant testing to obtain the target video, and use the set video image analysis model to detect and analyze the target video to obtain the detection and analysis results;

[0032] Based on the test and analysis results, obtain the cable material change analysis report;

[0033] Summarize the flame retardancy test data report and cable material change analysis report to generate a flame retardancy test report.

[0034] Furthermore, the burning process of the cable material flame retardant test is captured by video recording equipment to obtain the target video, and the target video is tested and analyzed by the set video image analysis model to obtain the test and analysis results, including:

[0035] Use video recording equipment to collect video of the entire process of cable material flame retardant testing to obtain the target video;

[0036] Analyzing the deformation of the cable material on the target video based on the first sub-model in the set video image analysis model to obtain a first analysis result; wherein the first sub-model is constructed based on the three-dimensional model;

[0037] Based on the second sub-model in the set video image analysis model, target detection of burning droplet specifications is performed on the target video to obtain a first detection result; wherein the second sub-model is constructed based on the YOLOv8 algorithm;

[0038] Based on the first analysis result and the first detection result, the detection and analysis result is summarized.

[0039] Furthermore, the method further includes analyzing the combustion process of the structural layer of the cable material in the target video based on the first sub-model in the set video image analysis model to obtain the contribution degree value of the structural layer to the flame retardant performance, and determining the optimal structural layer composition according to the contribution degree value to optimize the structural layer composition of the cable material; the specific steps are:

[0040] Obtaining the structural layer of the cable material, the structural layer comprising a fiber wrapping layer, an oxygen barrier layer and a sheath layer;

[0041] Based on the first sub-model in the set video image analysis model, the combustion process of the structural layer of the cable material in the target video is analyzed to obtain the combustion time and flame spread time of each layer of the fiber tape layer, the oxygen barrier layer and the sheath layer respectively;

[0042] Based on the burning time and the flame spread time, the contribution degree values ​​of the fiber tape layer, the oxygen barrier layer and the sheath layer to the flame retardant performance of the cable material are calculated respectively using the set contribution degree calculation rules, wherein the contribution degree value of the fiber tape layer to the flame retardant performance of the cable material includes multiple values, which are calculated based on different numbers of fiber tape layers and different overlap rates;

[0043] Based on the contribution values, the maximum contribution value is obtained by screening, and the specific structures of the fiber wrapping layer, the oxygen barrier layer and the sheath layer corresponding to the maximum contribution value are obtained;

[0044] Based on the specific structure of the fiber coating layer, oxygen insulation layer and sheath layer, the composition of the cable material structure layer is adjusted and optimized.

[0045] A device comprising:

[0046] Memory for storing computer programs or computer instructions;

[0047] The processor is used to execute the computer program or computer instructions stored in the memory, so that the device executes a method for detecting the flame retardancy of cable materials.

[0048] Compared with the prior art, the present invention has the following advantages and beneficial effects: according to the detection process and based on the detection items, the flame retardancy test of the cable material and the combustion change analysis of the cable material are carried out, and a flame retardancy test report is generated, thereby improving the detection quality and detection effect of the cable material, providing detection data feedback for the processing and production of the cable material, and being conducive to the improvement of the production process of the cable material.

[0049] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings.

[0050] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0052] Figure 1 This is a schematic diagram of the steps of a method for testing flame retardancy of cable materials;

[0053] Figure 2 A schematic diagram of the method steps for developing the testing process;

[0054] Figure 3 Schematic diagram of the method steps for flame retardancy testing of cable materials. DETAILED DESCRIPTION

[0055] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0056] The present invention provides a method for detecting flame retardancy of cable materials. Figure 1 As shown, including:

[0057] Obtain the test items for flame retardancy of cable materials;

[0058] Obtain the influencing factors of flame retardancy testing of cable materials, and formulate the testing process based on the influencing factors;

[0059] According to the testing process and based on the testing items, the cable materials are tested for flame retardancy, and the combustion changes of the cable materials are analyzed in combination with recording equipment to generate a flame retardancy test report.

[0060] The working principle of the above technical solution is: in order to realize the flame retardancy detection method of cable materials, the present invention first obtains the detection items of the flame retardancy of cable materials, and then obtains the detection influencing factors of the flame retardancy detection of cable materials, and formulates a detection process according to the detection influencing factors; then, according to the detection process, based on the detection items, the cable material is subjected to flame retardancy detection, and the combustion changes of the cable material are analyzed in combination with the recording equipment to generate a flame retardancy detection report.

[0061] The beneficial effects of the above technical scheme are as follows: by adopting the scheme provided in this embodiment, the present invention performs flame retardancy testing on cable materials and analysis of combustion changes of cable materials according to the testing process and based on the testing items, and generates a flame retardancy testing report, thereby improving the testing quality and testing effect of the cable materials, providing testing data feedback for the processing and production of the cable materials, and facilitating the improvement of the production process of the cable materials.

[0062] In one embodiment, the detection items include flame spread time, peak heat release rate, total heat release, combustion growth rate index, peak smoke production rate, total smoke production, combustion dripping material specification and vertical flame spread height.

[0063] The working principle of the above technical solution is: by setting the detection items of flame spread time, heat release rate peak, total heat release, combustion growth rate index, smoke production rate peak, total smoke production, combustion dripping material specifications and vertical flame spread height, the detection is facilitated to be carried out smoothly.

[0064] The beneficial effect of the above technical solution is: by adopting the solution provided by this embodiment, the detection items are set to facilitate the smooth implementation of the detection.

[0065] In one embodiment, Figure 2 As shown in the figure, the influencing factors of cable material flame retardancy testing are obtained, and the testing process is formulated according to the influencing factors, including:

[0066] Obtain the influencing factors of cable material flame retardancy testing, including cable material specifications, tape type, number of tape layers, processing method, conductor cross-section specifications, and fire-resistant tape cross-section specifications;

[0067] Based on the detection influencing factors, a first detection sub-process corresponding to the cable material specifications, a second detection sub-process corresponding to the tape type and the number of tape layers, a third detection sub-process corresponding to the processing method, and a fourth detection sub-process corresponding to the conductor cross-sectional specifications and the fire-resistant tape cross-sectional specifications are formulated;

[0068] Among them, the first detection sub-process corresponding to the cable material specification is to detect the outer diameter size of different wire gauges. For example, the outer diameter size of a multi-core small-section control cable is 7*1.5 or 19*1.5. The size of the outer diameter is first detected to obtain the detection effect of the size on the flame retardancy detection of the cable material; the second detection sub-process corresponding to the tape type and the number of tape layers is to detect the structure of the cable sheath material, such as the number of layers of glass fiber tape, the percentage of overlap rate, whether it includes an oxygen insulation layer and a sheath layer, to obtain the detection effect of different cable sheath material structures on the flame retardancy detection of the cable material; the third detection sub-process corresponding to the processing method is to determine whether the processing of the cable sheath material is a semi-extrusion processing technology or a tube extrusion processing technology, to obtain the detection effect of different processing technologies of the cable sheath material on the flame retardancy detection of the cable material; the fourth detection sub-process corresponding to the conductor cross-sectional specifications and the fire-resistant belt cross-sectional specifications is to detect different conductor cross-sectional sizes and fire-resistant belt cross-sectional sizes, to obtain the detection effect of different conductor cross-sectional specifications and fire-resistant belt cross-sectional specifications on the flame retardancy detection of the cable material;

[0069] The first detection sub-process, the second detection sub-process, the third detection sub-process and the fourth detection sub-process are summarized to generate a detection process.

[0070] The working principle of the above technical scheme is: in order to ensure the implementation of flame retardant detection, it is necessary to master the detection influencing factors of cable material flame retardancy detection, and formulate a detection process based on the detection influencing factors, so as to better implement the detection. The present invention first obtains the detection influencing factors of cable material flame retardancy detection, and the detection influencing factors include cable material specifications, tape type, number of tape layers, processing method, conductor cross-sectional specifications, and fire-resistant tape cross-sectional specifications; then, based on the detection influencing factors, formulate a first detection sub-process corresponding to the cable material specifications, a second detection sub-process corresponding to the tape type and the number of tape layers, a third detection sub-process corresponding to the processing method, and a fourth detection sub-process corresponding to the conductor cross-sectional specifications and the fire-resistant tape cross-sectional specifications; finally, the first detection sub-process, the second detection sub-process, the third detection sub-process and the fourth detection sub-process are summarized to generate a detection process.

[0071] The beneficial effect of the above technical scheme is: by adopting the scheme provided in this embodiment, by obtaining the detection influencing factors of the flame retardancy test of cable materials, formulating multiple detection sub-processes, and generating a detection process based on the detection sub-processes, a basis is provided for the implementation of the flame retardancy test of cable materials.

[0072] In one embodiment, Figure 3 As shown, according to the test process and based on the test items, the cable material is tested for flame retardancy, including:

[0073] According to the testing process and based on the testing items, the cable material is tested for heat release, smoke release and carbon formation performance to obtain the test results;

[0074] According to the test results, the heat release, smoke release and carbon formation performance are evaluated to obtain the evaluation results;

[0075] According to the evaluation results and based on the set test scoring standards, the thermal insulation performance and the number and quality of burning droplets are scored respectively to obtain sub-item scores and a comprehensive score;

[0076] Generate a flame retardancy test data report based on the sub-item scoring values ​​and the comprehensive scoring value.

[0077] The working principle of the above technical scheme is: in order to realize the flame retardancy test of cable materials, the present invention firstly tests the heat release, smoke release and carbon formation performance of the cable materials according to the test process and the test items to obtain the test results; then, according to the test results, the heat release, smoke release and carbon formation performance are evaluated to obtain the evaluation results; then, according to the evaluation results, based on the set test scoring standards, the thermal insulation protection insulation performance and the number and quality of burning drips are scored respectively to obtain sub-item scoring values ​​and comprehensive scoring values; finally, according to the sub-item scoring values ​​and the comprehensive scoring values, a flame retardancy test data report is generated.

[0078] The beneficial effect of the above technical scheme is: by adopting the scheme provided in this embodiment, the heat release, smoke release and carbon formation performance of the cable material are tested according to the test process and based on the test items, the test results are obtained, and the test results are evaluated, and finally a flame retardancy test data report is generated, providing a basis for the smooth implementation of the flame retardancy test.

[0079] In one embodiment, according to the test process and based on the test items, the heat release, smoke release and carbon formation performance of the cable material are tested to obtain the test results, including:

[0080] Based on the set judgment criteria corresponding to the flame spread time, the peak value of the heat release rate, the total amount of heat release and the combustion growth rate index, for example, for a cable sheath material with a sheath thickness of 1.8-2mm and a processing technology of a tube extrusion process, the flame spread time is less than or equal to 1.5 seconds, the peak value of the heat release rate is less than or equal to 30KW, the total amount of heat release is less than or equal to 15MJ (megajoules), and the combustion growth rate index is less than the level of 150W / S (watts per second), the flame spread time, the peak value of the heat release rate, the total amount of heat release and the combustion growth rate index are tested to obtain a first set of test data, and the heat release detection result is generated according to the first set of test data;

[0081] Based on the set judgment criteria corresponding to the peak value of smoke generation rate and the total amount of smoke generation, for example, for cable sheath materials with a sheath thickness of 1.8-2mm and a processing technology of extrusion tube process, the peak value of smoke generation rate is less than or equal to 0.25m 2 / s, the total smoke production is less than or equal to 50m2， Performing tests on the peak value of smoke production rate and the total amount of smoke production to obtain a second set of test data, and generating smoke release test results based on the second set of test data;

[0082] Based on the set judgment standard corresponding to the burning dripping material specification, for example, the cable sheath material with a sheath thickness of 1.8-2mm and a processing technology of extrusion tube process is divided into three levels: d0, d1, and d2; the burning dripping material specification is tested to obtain the third group of test data, and the carbon forming performance test results are obtained according to the third group of test data;

[0083] Among them, the detection of carbon-forming performance of conductor cross-sectional specifications and refractory belt cross-sectional specifications also includes: based on the set judgment criteria corresponding to the vertical flame spread height, testing the vertical flame spread height to obtain a fourth set of test data, and generating supplementary test results based on the fourth set of test data; the supplementary test results are used to adjust the carbon-forming performance of conductor cross-sectional specifications and refractory belt cross-sectional specifications.

[0084] The working principle of the above technical solution is: in order to detect the heat release, smoke release and carbon formation performance of the cable material and obtain the test results, the present invention first tests the flame spread time, the heat release rate peak value, the total heat release amount and the combustion growth rate index based on the set judgment criteria corresponding to the flame spread time, the heat release rate peak value, the total heat release amount and the combustion growth rate index to obtain a first group of test data, and generates heat release test results based on the first group of test data; then, based on the set judgment criteria corresponding to the smoke production rate peak value and the total smoke production amount, tests the smoke production rate peak value and the total smoke production amount to obtain a second group of test data, and generates heat release test results based on the second group of test data. test data to generate smoke release detection results; then, based on the set judgment criteria corresponding to the combustion dripping specifications, the combustion dripping specifications are tested to obtain a third group of test data, and the carbon formation performance test results are obtained according to the third group of test data; wherein, the carbon formation performance test for the conductor cross-sectional specifications and the refractory belt cross-sectional specifications also includes: based on the set judgment criteria corresponding to the vertical flame spread height, the vertical flame spread height is tested to obtain a fourth group of test data, and supplementary test results are generated according to the fourth group of test data; the supplementary test results are used to adjust the carbon formation performance of the conductor cross-sectional specifications and the refractory belt cross-sectional specifications.

[0085] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, the heat release, smoke release and carbon formation performance of the cable material are tested to obtain the test results, which can provide a basis for the evaluation of subsequent test results.

[0086] In one embodiment, the heat release, smoke release and carbon formation performance are evaluated according to the test results to obtain a final evaluation result, including:

[0087] Based on the big data platform, obtain the evaluation model library;

[0088] Based on the evaluation model library, multiple evaluation models are called up for parallel evaluation to obtain multiple evaluation results;

[0089] Based on multiple evaluation results, comparative analysis is performed using the set comparative analysis model to obtain the optimal evaluation result;

[0090] The best evaluation result is taken as the final evaluation result.

[0091] The working principle of the above technical solution is: in order to evaluate the heat release, smoke release and carbon formation performance and obtain the final evaluation result, the present invention first obtains the evaluation model library based on the big data platform; then, based on the evaluation model library, multiple evaluation models are retrieved for parallel evaluation to obtain multiple evaluation results; in the evaluation model library, a polygenic risk score (PRS) and other multiple evaluation models with the same evaluation implementation method as the polygenic risk score (PRS) are selected for parallel evaluation to obtain multiple evaluation results; then, based on the multiple evaluation results, a comparative analysis is performed using a set comparative analysis model, that is, multiple evaluation results are compared and analyzed with the set standard evaluation result data, and the evaluation result with a high data fit is used as the optimal evaluation result; finally, the optimal evaluation result is used as the final evaluation result.

[0092] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, a final evaluation result can be obtained by using multiple evaluation models to perform parallel evaluation and comparing and analyzing the evaluation results.

[0093] In one embodiment, the burning change of the cable material is analyzed in combination with the video recording equipment to generate a flame retardancy test report, including:

[0094] Use video recording equipment to collect video of the combustion process of cable material flame retardant testing to obtain the target video, and use the set video image analysis model to detect and analyze the target video to obtain the detection and analysis results;

[0095] Based on the test and analysis results, obtain the cable material change analysis report;

[0096] Summarize the flame retardancy test data report and cable material change analysis report to generate a flame retardancy test report.

[0097] The working principle of the above technical scheme is: in order to analyze the combustion changes of cable materials in combination with recording equipment and generate a flame retardancy test report, the present invention first uses the recording equipment to capture the video of the combustion process of the cable material flame retardancy test to obtain the target video, and uses the set video image analysis model to detect and analyze the target video to obtain the detection and analysis results; then, based on the detection and analysis results, a cable material change analysis report is obtained; then, the flame retardancy test data report and the cable material change analysis report are summarized to generate a flame retardancy test report.

[0098] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, an accurate analysis report can be obtained by using a video recording device to capture the combustion process of the cable material flame retardant detection, and analyzing the obtained target video.

[0099] In one embodiment, a video recording device is used to collect video of the combustion process of the cable material flame retardant test to obtain a target video, and a set video image analysis model is used to perform detection and analysis on the target video to obtain a detection and analysis result, including:

[0100] Use video recording equipment to collect video of the entire process of cable material flame retardant testing to obtain the target video;

[0101] Analyzing the deformation of the cable material on the target video based on the first sub-model in the set video image analysis model to obtain a first analysis result; wherein the first sub-model is constructed based on the three-dimensional model;

[0102] Based on the second sub-model in the set video image analysis model, target detection of burning droplet specifications is performed on the target video to obtain a first detection result; wherein the second sub-model is constructed based on the YOLOv8 algorithm;

[0103] Based on the first analysis result and the first detection result, the detection and analysis result is summarized.

[0104] The working principle of the above technical scheme is: in order to realize the detection and analysis of the target video using the set video image analysis model and obtain the detection and analysis results, the present invention first uses the recording equipment to collect video of the whole process of cable material flame retardant detection to obtain the target video; then, based on the first sub-model in the set video image analysis model, the cable material deformation is analyzed on the target video to obtain the first analysis result; wherein, the first sub-model is constructed based on the three-dimensional model; then, based on the second sub-model in the set video image analysis model, the target video is detected with the specification of burning drops to obtain the first detection result; wherein, the second sub-model is constructed based on the YOLOv8 algorithm; finally, based on the first analysis result and the first detection result, the detection and analysis result is summarized.

[0105] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, the target video is detected and analyzed by using the set video image analysis model to obtain the detection and analysis results, and the accuracy of the detection and analysis results can be guaranteed.

[0106] In one embodiment, the method further includes analyzing the combustion process of the structural layer of the cable material in the target video based on the first sub-model in the set video image analysis model to obtain the contribution degree value of the structural layer to the flame retardant performance, and determining the optimal structural layer composition according to the contribution degree value to optimize the structural layer composition of the cable material; the specific steps are:

[0107] Obtaining the structural layer of the cable material, the structural layer comprising a fiber wrapping layer, an oxygen barrier layer and a sheath layer;

[0108] Based on the first sub-model in the set video image analysis model, the combustion process of the structural layer of the cable material in the target video is analyzed to obtain the combustion time and flame spread time of each layer of the fiber tape layer, the oxygen barrier layer and the sheath layer respectively;

[0109] Based on the burning time and the flame spread time, the contribution degree values ​​of the fiber tape layer, the oxygen barrier layer and the sheath layer to the flame retardant performance of the cable material are calculated respectively using the set contribution degree calculation rules, wherein the contribution degree value of the fiber tape layer to the flame retardant performance of the cable material includes multiple values, which are calculated based on different numbers of fiber tape layers and different overlap rates;

[0110] Based on the contribution values, the maximum contribution value is obtained by screening, and the specific structures of the fiber wrapping layer, the oxygen barrier layer and the sheath layer corresponding to the maximum contribution value are obtained;

[0111] Based on the specific structure of the fiber coating layer, oxygen insulation layer and sheath layer, the composition of the cable material structure layer is adjusted and optimized.

[0112] The working principle of the above technical solution is: in order to better optimize the composition of the cable material structural layer, the present invention also includes analyzing the combustion process of the structural layer of the cable material in the target video based on the first sub-model in the set video image analysis model, firstly obtaining the structural layer of the cable material, the structural layer including the fiber coating layer, the oxygen insulation layer and the sheath layer; then analyzing the combustion process of the structural layer of the cable material in the target video based on the first sub-model in the set video image analysis model, respectively obtaining the combustion time and flame spread time of each layer of the fiber coating layer, the oxygen insulation layer and the sheath layer; then, based on the combustion time and flame spread time Delay time, using the set contribution calculation rules, respectively calculate the contribution values ​​of the fiber tape layer, oxygen barrier layer and sheath layer to the flame retardant properties of the cable material, wherein the contribution value of the fiber tape layer to the flame retardant properties of the cable material includes multiple values, and the multiple values ​​are calculated and obtained based on the different number of fiber tape layers and different overlapping rates; finally, based on the contribution value, the maximum contribution value is screened and the specific structures of the fiber tape layer, oxygen barrier layer and sheath layer corresponding to the maximum contribution value are obtained; based on the specific structures of the fiber tape layer, oxygen barrier layer and sheath layer, the composition of the cable material structure layer is adjusted and optimized.

[0113] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, the combustion process of the structural layer of the cable material is analyzed in the target video based on the first sub-model in the set video image analysis model to obtain the contribution degree value of the structural layer to the flame retardant performance, and according to the contribution degree value, the optimal structural layer composition is determined, which can provide a basis for optimizing the structural layer composition of the cable material.

[0114] A device comprising:

[0115] Memory for storing computer programs or computer instructions;

[0116] The processor is used to execute the computer program or computer instructions stored in the memory, so that the device executes the cable material flame retardancy detection method.

[0117] The working principle of the above technical solution is: a computer program or computer instruction can be stored in a memory; a computer program or computer instruction stored in the memory can be executed by a processor, so that the device executes the flame retardancy detection method of cable materials.

[0118] The beneficial effect of the above technical solution is: by adopting the solution provided in this embodiment, the storage and processing functions can be realized through the equipment, providing a basis for the implementation of the flame retardancy detection method of cable materials.

[0119] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for detecting flame retardancy of cable materials, characterized in that: include: Obtain the test items for flame retardancy of cable materials; Obtain the influencing factors of flame retardancy testing of cable materials, and formulate the testing process based on the influencing factors; According to the testing process and based on the testing items, the cable materials are tested for flame retardancy, and the combustion changes of the cable materials are analyzed in combination with recording equipment to generate a flame retardancy test report.

2. A method for detecting flame retardancy of cable materials according to claim 1, characterized in that: The test items include flame spread time, peak heat release rate, total heat release, combustion growth rate index, peak smoke production rate, total smoke production, combustion dripping specifications and vertical flame spread height.

3. A flame retardancy detection method for cable materials according to claim 2, characterized in that: Obtain the influencing factors of cable material flame retardancy testing, and formulate the testing process based on the influencing factors, including: Obtain the influencing factors of cable material flame retardancy testing, including cable material specifications, tape type, number of tape layers, processing method, conductor cross-section specifications, and fire-resistant tape cross-section specifications; Based on the detection influencing factors, a first detection sub-process corresponding to the cable material specifications, a second detection sub-process corresponding to the tape type and the number of tape layers, a third detection sub-process corresponding to the processing method, and a fourth detection sub-process corresponding to the conductor cross-sectional specifications and the fire-resistant tape cross-sectional specifications are formulated; The first detection sub-process, the second detection sub-process, the third detection sub-process and the fourth detection sub-process are summarized to generate a detection process.

4. A method for detecting flame retardancy of cable materials according to claim 3, characterized in that: According to the testing process and based on the testing items, the cable materials are tested for flame retardancy, including: According to the testing process and based on the testing items, the cable material is tested for heat release, smoke release and carbon formation performance to obtain the test results; According to the test results, the heat release, smoke release and carbon formation performance are evaluated to obtain the evaluation results; According to the evaluation results and based on the set test scoring standards, the thermal insulation performance and the number and quality of burning dripping materials are scored respectively to obtain sub-item scores and a comprehensive score; Generate a flame retardancy test data report based on the sub-item scoring values ​​and the comprehensive scoring value.

5. A method for detecting flame retardancy of cable materials according to claim 4, characterized in that: According to the testing process and based on the testing items, the cable material is tested for heat release, smoke release and carbonization performance to obtain the test results, including: Based on the set judgment criteria corresponding to the flame spread time, the peak value of the heat release rate, the total amount of heat release and the combustion growth rate index, the flame spread time, the peak value of the heat release rate, the total amount of heat release and the combustion growth rate index are tested to obtain a first set of test data, and a heat release detection result is generated according to the first set of test data; Based on the set judgment criteria corresponding to the peak value of smoke production rate and the total amount of smoke production, the peak value of smoke production rate and the total amount of smoke production are tested to obtain a second set of test data, and a smoke release detection result is generated according to the second set of test data; Based on the set judgment standard corresponding to the combustion dripping material specification, the combustion dripping material specification is tested to obtain a third set of test data, and the carbon forming performance test result is obtained according to the third set of test data; Among them, the detection of carbon-forming performance of conductor cross-sectional specifications and refractory belt cross-sectional specifications also includes: based on the set judgment criteria corresponding to the vertical flame spread height, testing the vertical flame spread height to obtain a fourth set of test data, and generating supplementary test results based on the fourth set of test data; the supplementary test results are used to adjust the carbon-forming performance of conductor cross-sectional specifications and refractory belt cross-sectional specifications.

6. A method for detecting flame retardancy of cable materials according to claim 4, characterized in that: According to the test results, the heat release, smoke release and carbon formation performance are evaluated to obtain the final evaluation results, including: Based on the big data platform, obtain the evaluation model library; Based on the evaluation model library, multiple evaluation models are called up for parallel evaluation to obtain multiple evaluation results; Based on multiple evaluation results, comparative analysis is performed using the set comparative analysis model to obtain the optimal evaluation result; The best evaluation result is taken as the final evaluation result.

7. A method for detecting flame retardancy of cable materials according to claim 4, characterized in that: Combined with video recording equipment, the burning changes of cable materials are analyzed to generate a flame retardancy test report, including: Use video recording equipment to collect video of the combustion process of cable material flame retardant testing to obtain the target video, and use the set video image analysis model to detect and analyze the target video to obtain the detection and analysis results; Based on the test and analysis results, obtain the cable material change analysis report; Summarize the flame retardancy test data report and cable material change analysis report to generate a flame retardancy test report.

8. A method for detecting flame retardancy of cable materials according to claim 7, characterized in that: Use video recording equipment to collect video of the combustion process of cable material flame retardant detection to obtain the target video, and use the set video image analysis model to detect and analyze the target video to obtain the detection and analysis results, including: Use video recording equipment to collect video of the entire process of cable material flame retardant testing to obtain the target video; Analyzing the deformation of the cable material on the target video based on the first sub-model in the set video image analysis model to obtain a first analysis result; wherein the first sub-model is constructed based on the three-dimensional model; Based on the second sub-model in the set video image analysis model, target detection of burning droplet specifications is performed on the target video to obtain a first detection result; wherein the second sub-model is constructed based on the YOLOv8 algorithm; Based on the first analysis result and the first detection result, the detection and analysis result is summarized.

9. A method for detecting flame retardancy of cable materials according to claim 8, characterized in that: It also includes analyzing the combustion process of the structural layer of the cable material in the target video based on the first sub-model in the set video image analysis model to obtain the contribution degree value of the structural layer to the flame retardant performance, and determining the optimal structural layer composition according to the contribution degree value to optimize the structural layer composition of the cable material; the specific steps are: Obtaining the structural layer of the cable material, the structural layer comprising a fiber wrapping layer, an oxygen barrier layer and a sheath layer; Based on the first sub-model in the set video image analysis model, the combustion process of the structural layer of the cable material in the target video is analyzed to obtain the combustion time and flame spread time of each layer of the fiber tape layer, the oxygen barrier layer and the sheath layer respectively; Based on the burning time and the flame spread time, the contribution degree values ​​of the fiber tape layer, the oxygen barrier layer and the sheath layer to the flame retardant performance of the cable material are calculated respectively using the set contribution degree calculation rules, wherein the contribution degree value of the fiber tape layer to the flame retardant performance of the cable material includes multiple values, which are calculated based on different numbers of fiber tape layers and different overlap rates; Based on the contribution values, the maximum contribution value is obtained by screening, and the specific structures of the fiber wrapping layer, the oxygen barrier layer and the sheath layer corresponding to the maximum contribution value are obtained; Based on the specific structure of the fiber coating layer, oxygen insulation layer and sheath layer, the composition of the cable material structure layer is adjusted and optimized.

10. A device, characterized in that the device include: Memory for storing computer programs or computer instructions; A processor is used to execute a computer program or computer instruction stored in a memory, so that the device executes a flame retardancy detection method for cable materials as described in any one of claims 1 to 9.

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