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 Tester
Question: How much is a cable fault tester? Answer: With the continuous improvement and innovation of society, the acceleration of urban construction is a common problem in cable construction. The cable fault testers on the market are really blooming. In various ways, people always ask: How much does a cable fault tester cost? Answer: With the continuous improvement and innovation of society, the acceleration of urban construction is a common problem in cable construction.
There are really hundreds of flowers in the market for cable fault testers. In various ways, one can't always start with the options of a cable fault tester. I don't know which tester I need.
If I pick the wrong time, I'm wasting my time and money. Delays are caused. These are not what we want to see.
Therefore, we tried the cable fault tester developed by Wuhan Huarui Yuanda Power Equipment Co., Ltd. for various cable faults, such as coal mining enterprises and railway transportation departments. Street light management station. Farmland buried cables.
Road construction cable and cable factory, help customers realize a small amount of money to buy fault testers for their own use. With the vigorous development of China's power industry, more and more places are buried or overhead cables and other types of cables! At the same time, the cables also require regular maintenance and repairs due to various long-term erosions! Today, I will briefly analyze the possible faults of the cable and the corresponding repair methods! Usually, our common cable faults are ground short circuit, phase-to-phase short circuit, etc. Such faults are mainly caused by buried cables.
The main symptoms are normal in sunny weather and short circuit in rainy weather. So what should be done about this failure? The solution is to use the cable fault tester produced by the conventional company, adopt the low-voltage pulse method, use the host plus two phases of the cable, the host sends out a pulse, and then through the feedback waveform, the fault point can be accurately found, and then repaired or replaced. That's it! After the fault occurs, the repairman should prepare working tools: 1. A set of cable fault tester 2. Cable fault, cable, cable head, and crimping tube have the same specifications.
3. Two small ropes, two large ropes and four sets of landing tools. 4. Check 2 groups of electric pen, safety sign and grounding seal. 5. Lighting tools, communication tools, wire cutters, tie wires, iron wires, saw bows, phase sequence belts, blowtorches.
6. Power generation equipment. 7. Multimeter, insulating vibrator, anti-aging wire, wire ends, crimping pliers, tape, sandpaper, round. Second, the division of labor, the process, can be grouped at the same time.
1. According to the dispatch instruction, the power failure will be cut off immediately at the beginning. 2. Notify Baodong maintenance workshop according to the fault situation. 3. Prepare work tools and ship spare transformers.
4. When restoring, pay attention to the safety of the site and the phase sequence of the cable terminal connection. Three Considerations 1. The copper shield is wrapped with insulating tape for protection against copper in the manufacture of cable terminations. The shroud is loose and temporarily secured and should be removed when the heat stress tube shrinks.
2. An electrical stress control tube (called a stress tube) is placed at the rupture of the shield to disperse the electric field stress (power line) to ensure the reliable operation of the cable. 3. Safety protection should be provided during the stress test. 4. Pay attention to the direction and angle when using the lighting fixtures near the railway line, so as not to interfere with driving.
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