Cable fault tester What are the types of cable faults?

2022/05/26

Author: Noyafa–Noyafa Cable Tester

Cable fault tester What are the types of cable faults? The cable fault tester can correctly judge the nature of the cable fault, which is very beneficial to the rapid detection of the cable fault point. According to the current cable fault detection technology and the insulation resistance value of the fault point, what are the types of cable faults? The cable fault tester can correctly judge the nature of the cable fault, which is very beneficial to the rapid detection of the cable fault point. According to the current cable fault detection technology and the insulation resistance value of the fault point, the common cable fault types can be divided into the following three types: 1. Open circuit This type of fault usually means that the resistance value between the cable and the cable or the cable to the ground is within the specified value range, but the actual working voltage cannot be transmitted to the terminal or although some voltage is transmitted to the terminal, but there is almost no load capacity, these are all open circuits Fault, in actual production, the disconnection fault we see belongs to a special open circuit fault. 2. Low resistance fault When the insulation between the cable and the cable is damaged or the insulation between the cable and the ground is damaged, the insulation resistance of the cable will inevitably decrease. In the case where the insulation resistance of the cable is smaller than ten times the characteristic impedance of the cable , we call this fault a low-resistance fault. When measuring low-resistance faults, the low-voltage pulse reflection method can be used.

3. High-resistance fault When the insulation resistance between the cable and the cable or the cable to the ground is much lower than the normal value, but larger than ten times the characteristic impedance of the cable, we call this kind of cable fault a high-resistance fault. Shenzhen Noyafa is a company specializing in the production of electric power testing equipment. It is a manufacturer of cable fault testers. The company has won unanimous praise from the market and customers with its good credit and high-quality products.

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