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Knowledge sharing: Testing procedures for power cable faults

2025-06-09

Latest company news about Knowledge sharing: Testing procedures for power cable faults

The following steps are generally required to find underground power cable faults using a cable fault tester:

(1) Analyze the nature of the cable fault and understand the withstand voltage level and insulation medium of the faulty cable.

(2) Use the "low voltage pulse" of the cable fault tester to test the length of all phase lines of the faulty cable and calibrate the radio wave transmission speed of the faulty cable.

(3) Select a suitable test method and use the cable fault tester to perform a rough measurement of the cable fault.

(4) Perform a precise measurement of the cable fault point, including finding the direction and depth of the buried cable and accurately locating the fault point.

(5) Perform error analysis on the cable fault test results (measurement error, transmission speed error, interpretation error, instrument error).

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