NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
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NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
Author: Noyafa–CCTV Monitor Tester
Cable fault detection methods What methods can be used to detect cable faults? Cable fault detection methods Cables are widely used in power supply systems all over the world based on their significant advantages in various aspects. Compared with overhead lines, buried cables are less harmful, more reliable, and less affected by the local climate. Laying underground is conducive to beautifying the city and optimizing the layout of factories and mines.
With the rapid development of the country's economy. With the continuous expansion of the city scale, the land resources have become tense, the urban-rural integration has continuously improved the beautification of the urban environment, the application of cables in our country has become more and more extensive, and the demand for the quantity is also increasing exponentially. However, due to the influence of production process, construction, laying environment, management and maintenance or other subjective and objective factors, various cable failures will occur.
So what method can be used to quickly locate the cable fault? 1. Multi-core cable, the main insulation fault is the main fault of multi-core cable. The pulse method, flashover method, current-voltage method and induction sampling method can be used to pre-locate the cable fault, and the acousto-magnetic synchronization method can be used to accurately locate the fault. 2. Single-core armored cable. Single-core armored cables are mainly divided into main insulation faults and outer sheath faults.
The main insulation fault can be accurately located by using the pulse method, flashover method, current-voltage method, and induction sampling method to pre-position the fault point and use the acousto-magnetic synchronization method. The fault of the outer sheath can be pre-located by the bridge method, and accurately located by the step voltage method. Cable fault detection method 3. Single-core unarmoured cable can use bridge method to pre-position the cable fault), and step voltage method can accurately locate.
In addition to the above test methods, the detection of the cable fault tester is related to the rated voltage and length of the cable, and has nothing to do with the cross-sectional area and conductor material. The rated voltage determines the voltage of the high-voltage equipment, and the length of the cable determines the size of the pulse energy storage capacitor. Cable fault detection method. Shenzhen Noyafa Electronic Technology Co., Ltd. is a high-tech enterprise engaged in scientific research, production and sales, and provides technical services for cable fault detection.
At present, a variety of high-voltage test equipment and testing instruments have been widely used in the industry. At the same time, our company provides technical services such as cable fault detection and substation testing and testing to users across the country. The core engineer responsible for providing technical services has 20 years of on-site testing. Experience, can provide solutions according to different types of cables and site environment. What methods can be used to detect cable faults? Cable fault detection method Shenzhen Noyafa Electronic Technology Co., Ltd.
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