Wiring Methods of Cable Identification Instrument: Direct Method and Coupling Method

The wiring method of the instructions for use of the cable identifier is direct method and coupling method: the wiring method of the cable identifier is divided into two types: direct connection method and coupling method. The direct connection method is only applicable to the identification of uncharged cables, and the coupling method can accurately identify both live and uncharged cables. A) Direct connection method: the ground wire of the cable to be identified is disconnected, the signal current output line (red) is connected to any good phase, and the other end of the connected phase is grounded. The signal current return line (black) is grounded. Identification method: first judge the phase, subject to the initial swing of the meter pointer, and let the current flow along the direction indicated by the receiving clamp according to the direction shown in the figure. If it is a cable to be identified, the initial swing direction of the meter pointer should be to the right. In the process of phase judgment, if multiple cables are in the same phase, the amplitude can be compared. Adjust the sensitivity knob to the appropriate position to compare the amplitude. The cable with large amplitude is the cable to be identified. B) Coupling method: connect both ends of the cable to be identified with the earth (through core wire, shield or armor) to form a closed loop. When the direction of the output coupling clamp is consistent with that of the receiving coupling clamp, the cable with the positive deviation of the pointer direction of the meter is the cable to be identified. Identification method: under the condition that the output coupling clamp and the receiving coupling clamp are in the same direction, first judge the phase, subject to the initial swing of the meter pointer, and let the current flow along the direction indicated by the receiving clamp according to the direction shown in the figure. If it is a cable to be identified, the initial swing direction of the meter pointer should be to the right. During the phase judgment process of the cable identification instrument, if multiple cables are in the same phase, the amplitude can be compared. Adjust the sensitivity knob to the appropriate position to compare the amplitude. The cable to be identified has a large amplitude.

Wiring Methods of Cable Identification Instrument: Direct Method and Coupling Method 1

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