High-voltage cable checking method

Abstract

The invention discloses a high-voltage cable checking method which adopts a high-voltage cable checking instrument, the high-voltage cable checking instrument comprises a base, an ultrasonic checking machine and a take-up mechanism are fixedly mounted at the top of the base, and a cable conduction platform is arranged in the ultrasonic checking machine. Two inlet grooves are formed in the side wall of the ultrasonic troubleshooting machine, detection cables are arranged in the two inlet grooves, a driving motor is fixedly installed on the side wall of the ultrasonic troubleshooting machine, and a conduction assembly is fixedly installed at one end of an output shaft of the driving motor and used for detecting stable conduction of the cables; a magnetic brushing assembly and a turbulent flow assembly are arranged on the inner wall of the top surface of the ultrasonic checking machine; according to the invention, through the arrangement of the driving assembly and the magnetic brushing assembly, and through the design of the linkage assembly, the magnetic impurity removal function in the cable conduction process is realized, so that the precision of a subsequent troubleshooting result is stably improved, and adverse effects on troubleshooting are avoided.

Description

technical field [0001] The invention belongs to the technical field of power cable inspection, in particular to a high-voltage cable inspection method. Background technique [0002] The cable is one of the most basic structures in the power industry. The cable is used for power transmission. The cable is generally made of one or more mutually insulated conductors and an outer insulating protective layer. The cable is different according to its application scenarios. It also has different classifications, mainly including power cables, control cables, compensation cables, shielded cables, etc. In order to ensure the safe use of cables, it is necessary to check the cables before they are put into use, so as to avoid bad cables being put into use. ACCIDENT. [0003] Today's high-voltage cable inspectors based on electrical safety generally use ultrasonic waves to inspect the inside of the cable. If it detects that there is damage or abnormality inside the cable, the inspector ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is: in order to solve the problem that today’s high-voltage cable inspection instruments based on electric safety generally inspect the interior of the cable through ultrasonic waves, and if any damage or abnormality is detected inside the cable, the inspection instrument will give an alarm to complete the inspection. Using ultrasonic testing, if there are some magnetic substances on the outside of the cable, it will affect the detection accuracy and cause inaccurate inspection results. A high-voltage cable inspection method is proposed.

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