Can a clamp-on multimeter measure the breaking point of a sheathed wire?
Static measurements are fine, dynamic is not.
The so-called static means that the cable ends are removed, not electrified when measured, this time the clamp meter as an ordinary multimeter to use. Measurement method is: take a three-core cable one of the broken line to give an example of it, the clamp meter to diode gear or ohm gear, ohm gear to adjust the zero, with the hand back and forth bending the cable from one end of the cable to the other end of the method to find, while monitoring the multimeter pointer or the value of the pendulum is not swinging, when bending to a certain place, when the multimeter value changes, indicating that the breakpoint is in the vicinity of the bend, with a paper cutter Cut open the cable skin, try to pull a look with your hand, generally break the line where a pull will pull out. This is the cable has a broken line or break point at both ends of the distance is very close to the method of finding.
If there is more than one breakpoint or breakpoint distance, it is necessary to use the playing section of the cable skin using a gradual reduction of the scope of the fault approach, until the breakpoint is found.
The so-called dynamic is when the power is on, because there is a line is broken, there is no circuit there is no current, there is no current clamp meter is useless. If the cable is electrified, connected to the electrical appliances, hard to use the clamp meter to clamp the wire to measure the words, at the same time and then use the method of bending the wire, superficially feasible, in fact, very unsafe, if the power of the electrical appliances, in the bending of the wire suddenly connected to the wire, then it is easy to cause a fire, or even the outer skin of the fire, and the other two wires touching the situation, there is a great security risk, this detection method should be used with caution.
