In order to ensure normal power operation and avoid human and financial losses caused by unqualified cable quality,it is necessary to strictly control various indicators of the cable and improve its detection accuracy.Taking the influencing factors of cable insulation thickness measurement as an example,this study analyzed the influence of sample preparation,instrument selection and subjective factors of inspectors on the test results.At the same time,the optimal parameter settings of the intelligent planar image measuring instrument are found through a large number of experiments to avoid the measurement errors of the equipment.The experimental results indicate that when the exposure rate parameter of the equipment is set to 10,the cable insulation thickness detection results are the most accurate and stable.
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