The method of digital multimeter to judge the line breakpoint
For the method of judging the breakpoint of the line by the digital multimeter, connect one end of the wire with the breakpoint to the live wire of the 220V mains, and leave the other end in the air, pull the digital multimeter to the AC2V block, and start from the live wire connection end of the wire for judgment. The location of the line breakpoint.
The method of digital multimeter to judge the line breakpoint
It can be detected with a digital multimeter as follows:
In addition to the measurement of basic parameters such as voltage, current, resistance, capacitance, and transistor, digital multimeters can also be used in a flexible way to further expand their functions and achieve the purpose of multi-purpose use of one meter.
The method of using a digital multimeter to judge the breakpoint of a wire and cable is now given. When there is a disconnection fault inside the cable or the cable, the exact location of the disconnection is not easy to determine due to the wrapping of the outer insulating skin. The digital multimeter can solve this problem. Easy to do.
specific method:
Connect one end of the wire with the breakpoint to the live wire of the 220V mains, and leave the other end in the air. Pull the digital multimeter to the AC2V block, start from the live wire connection end of the wire, hold the tip of the black test lead with one hand, and slowly move the red test lead along the insulation of the wire with the other hand. The voltage value is about 0.445V.
When the red test pen moves somewhere, the voltage displayed on the display suddenly drops to 0.0 volts, and the wire breakpoint is about 15cm forward from this position.
