Author: Noyafa–Cable Length Tester
Safety matters of cable fault locator The concave-convex resistance, short circuit, open circuit, open circuit and high resistance leakage and high resistance flashover fault of frequency coaxial cable. The precautions for the cable fault locator are as follows: 1. After the cable fault locator roughly measures the fault location, it should prevent the discharge ball from being too large and the impulse voltage to be too high, so as to prevent the long-term impulse voltage from being too high to short-circuit the fault point, resulting in failure to find it. to the point of failure. 2. When the on-site environment is too complex, such as the surrounding interference, the soil layer is too thick, the cable damage is too severe, etc., it is difficult to transmit the type of discharge at the fault point to the ground, and then it is difficult to locate the point.
At this time, two pointing instruments are required to work together, and one uses a probe to operate at the same time.“fixed point”azimuth, another using a probe also works in“fixed point”Bearing, both pointing devices hear together“bang bang”You can accurately identify the location of the faulty point by finding the loudest point. 3. Find out when you set a point“loudest point”Method: After hearing the regular discharge sound during the pointing process, you can confirm that the fault point is nearby, and then move the pointing device forward and backward along the cable to compare and find the place where the discharge sound is louder, and reduce the output volume of the pointing device at the same time. Finally, gradually focus on searching until the loudest point. 4. When the cable fault locator is not in use, the power supply should be closed in time. When the noise becomes louder during use, it is most likely that the battery is insufficient, and the battery should be replaced in time.
Precautions for the use of cable fault locator Safety precautions for cable fault locator Shenzhen Noyafa Electronic Technology Co., Ltd.
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