Author: Noyafa–Noyafa Cable Tester
How to use the cable routing device How to use the cable routing device How to complete the cable fault location procedure? Cable Fault Location Procedure 1. Learn about the types of cable failures. Before testing a cable fault, you need to understand the type of cable fault and determine how to use a cable pathfinder How to use a cable pathfinder How to complete a cable fault location procedure? Cable Fault Locator Procedure 1.
Learn about the types of cable failures. Before testing a cable fault, you need to understand the type of cable fault and determine the nature of the fault. See if the fault is grounding, short circuit, short-term or single-phase, two-phase, three-phase fault; high resistance, resistance or leakage fault.
Only by understanding the type of fault and determining the nature of the fault, can an appropriate method be selected for detection and testing of cable faults. 2. Rough test.
After determining the nature of the cable fault, you can select a cable fault tester according to the type and nature of the fault, determine the distance from the fault point to the end, and determine the approximate scope of the cable fault. 3. Path search.
After a cursory test for cable faults, it is necessary to start finding a route. For cables buried directly in the ground, it is necessary to find out the actual direction of the cable line (or measure the buried depth). For exposed cables in trenches, tunnels, etc., the faulty cable needs to be selected from a number of cables, i.e. cable identification.
The detection coil then receives the audio current signal from the detection cable path or identification cable (usually to the faulty cable) to find the power cable path or identify the cable. Interference with large and complex environments. The identification of a generic cable clip ammeter is helpful for identification.
Add a current signal from the first or end of the cable and switch it periodically. Then use a clamp meter to observe the current and switching law of the cable. When the current indicates near increasing current (due to the line), when the losses decrease and the continuous pattern is consistent, the current can be confirmed to be the faulty cable 4.
Make sure. The cable fault pinpoint instrument can accurately locate the cable fault. It adopts the principle of acousto-magnetic synchronization, uses the probe to receive the signal, restores the sound through the earphone, and accurately determines the fault location. Shenzhen Noyafa Electronic Technology Co., Ltd.
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