Author: Noyafa–Cable Tester Manufacturer
Shenzhen cable fault detection, conquer you with superb technology In November 2008, in response to the world financial crisis, the government decided to invest 4 trillion yuan to stimulate domestic demand, of which about 40% was used for urban and rural power grid construction and transformation. The national wire and cable industry has Shenzhen cable fault detection again, conquering you with superb technology. In November 2008, in response to the world financial crisis, the government decided to invest 4 trillion yuan to stimulate domestic demand, of which more than 40% were used for urban and rural power grids Construction and renovation. The national wire and cable industry has another good market opportunity, and wire and cable companies in various places seize the opportunity to welcome a new round of urban and rural power grid construction and transformation.
In the process of construction and maintenance of mechanical and electrical equipment installation projects, there will be cable failures caused by various reasons. Therefore, it is necessary to have applicable theories and methods to solve all kinds of faults. This paper expounds the traditional detection methods. The fault point detection of cables generally has to go through three main steps: fault type diagnosis, fault point distance measurement, and precise point determination. . The fault type diagnosis is mainly to determine the fault phase of the fault point of the cable, which is high-resistance grounding or low-resistance grounding, so that the tester can choose the appropriate detection method.
The fault point distance measurement is also called pre-positioning. A test signal is applied to the faulty cable core wire or online measurement and analysis of the fault information are carried out to initially determine the distance of the fault and minimize the fault range to facilitate accurate point determination.
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