NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
Language
NOYAFA Electronic specializing in testing instruments and cable testers for 16 years
Author: Noyafa–Cable Length Tester
Buying a good cable fault tester not only has the characteristics of stable performance, but also can make your inspection work more effective. But there are many brands of cable fault testers on the market today, and there are significant differences between manufacturers. Then, buying a good cable fault tester not only has the characteristics of stable performance, but also can make your inspection work more effective.
But there are many brands of cable fault testers on the market today, and there are significant differences between manufacturers. So what should you consider when buying a cable fault tester? The technology used in the cable fault detector is the main factor determining the price of the equipment. Equipped with advanced technology, the cable fault test will not only have high detection accuracy, but will also be more intelligent in operation.
On the contrary, if the technology of the cable fault tester equipment is slightly backward, the detection accuracy of the equipment may be slightly lower, and the operation procedures of the equipment will be cumbersome. Secondly, the difference between the cable fault testers of different manufacturers is reflected in the configuration of the equipment. At present, some manufacturers will equip the equipment with a more advanced intelligent operating system, which greatly reduces the difficulty of operating the equipment.
The second is to configure the function of data storage and printing, which facilitates the establishment of cable files and facilitates the maintenance of cables in the later period. Some manufacturers even configure the automatic distance judgment function for the cable fault tester equipment, which makes the cable fault detection fault more simple and intelligent. In the later use of the cable fault detector, there will always be various problems that require after-sales consultation from the manufacturer.
If the after-sales team of the purchased cable fault detector equipment manufacturer is relatively complete, you can not only get professional technical guidance, but also get high-quality service. If you buy a cable fault detection equipment from a small manufacturer, you will not only have no professional after-sales service, but you may not even be able to protect your own rights and interests. What type of cable fault tester is to be purchased depends on the specific requirements of the user unit and whether there are any special requirements for the instrument.
Generally speaking, the types of cables are high-voltage cables and low-voltage cables. The cable laying methods are coexistence of direct burial, cable trench, overhead, etc. There are no special requirements for the instrument. The cable fault tester is a complete set of three functions of detection and precise fault location. The specific requirements are: the fault point rough tester (flash tester) has the function of low-voltage pulse testing cable length and the function of testing high-resistance faults by the impulse-flash method; ; The path tester should be able to test the path of the cable with a direct buried depth of 2 meters, and the test distance should be at least 5Km. You can also use testers with other test principles according to the specific situation of the unit. For example, if there are many cables laid in the cable trench, you can purchase a high-voltage smart bridge tester. After testing the fault distance, you can directly open the cable trench to search, and you can directly find the damaged armor. Open cable failure point.
If there are more direct buried cables and the cables are newer, you can buy a tester that uses the step voltage test principle. If funds allow, different types of testers can be purchased and then used flexibly according to site conditions. For users with a very simple scope of use, such as street lamp management departments, but it should be noted that the purchased instruments are best equipped with pulse method test and bridge method test functions. Have the ability to complete most of the street lamp fault point testing work.
For the fault that the cable core wire is broken and the outer sheath (sheath) of the cable wire is not damaged, the fault distance cannot be tested by the bridge method, and the step voltage method cannot be used to accurately determine the point; for cables with multiple damaged outer sheaths , even if the cable is directly buried and it is a ground fault, the step voltage cannot be used as a legal point. The above sharing of the purchase and sale of the cable fault tester, I hope it can be helpful to friends who are engaged in related industries.
Copyright © 2022 SHENZHEN NOYAFA ELECTRONIC CO.,LIMITED - www.noyafa.net All Rights Reserved.