NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
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NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
Author: Noyafa–CCTV Tester
Question: The application method of the cable fault tester Answer: Today, Xiaobian introduces the application method of the cable fault tester. Friends who want to know about it, please follow the introduction of the editor. 1. Judging the nature of the cable fault, the problem of cable fault: the application method of the cable fault tester Answer: Today, the editor will introduce the application method of the cable fault tester. Friends who want to know more follow the introduction of the editor. Check it out. 1. Judging the nature of cable faults, cable faults are mainly divided into main insulation faults and EHV outer sheath faults.
First, use a grounding insulation meter or a multimeter, and use a test method to determine the nature of the fault, and then use a cable fault distance meter to measure the distance. If it is a low-resistance grounding or open-circuit fault, directly use the low-voltage pulse method of the cable fault distance meter to measure the distance; if it is a high-resistance flashover fault, the direct-flash method will be used to test the fault distance. The resistance generally adopts the method of high voltage impulse discharge to measure the distance. 2. Find the path (if the path is clear, this step can be omitted).
When searching for the path, add an AC signal (path signal generator) to the cable, use the principle of electromagnetic induction, and then use the receiver to receive the signal, and walk along the path with the signal to determine the path of the cable. I hope that the above introduction about the cable fault tester can bring you some help. Thank you for reading. If you have any needs, please feel free to contact us.
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