Author: Noyafa–Cable Tester Manufacturer
The method of using the cable fault detector to determine the fault point The cable fault precise locator cable fault is the most common type of fault in the power fault, and it is also more difficult to detect. However, with the emergence of the cable fault detector, the efficiency of cable fault detection has been effectively improved. So what are the methods for using a cable fault detector to pinpoint the fault point? Acoustic measurement method Acoustic measurement method is iron-clad. The elastic pressure pulse generator releases heat to the faulty cable, an arc is generated at the fault point, and discharge sound occurs from time to time. When the cable is buried directly, detection occurs from time to time. Pick up the space wave signal and widen it and output it through the receiver or meter.
Through open-minded on-the-spot testing, after the detection wave is widely publicized from the cable fault point, it quickly loses weight outside the 2-meter radius. Therefore, the sound measurement method is constant. 4m deviation to monitor once. When the seismic wave is monitored, it is confirmed that the fault point is already within 2m. If the maximum sound point is carefully found, the fault point can be accurately found. The industrial air pressure method is the step voltage official point, which is not the same as aligning the outer sheath grounding fault point for the insulation of the outer sheath of the cable. sufficient to enable the official point of step voltage.
The electromagnetic method and the idea method use the radio wave to solidify or apply the idea point, that is, use the change of the radio wave signal or the beat signal of the cable fault point to define the fault point, which is feasible from a postulate point of view. But judging from the current situation, there has not been a reliable and practical pointing device. In other words, the anchoring instrument using electromagnetic wave positioning is still being developed by various scientific research institutions, and it needs to be further explained and developed in practice to reach the practical level.
The method of using the cable fault detector to determine the fault point
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