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Along with the production scale of cable manufacturers, power cable production type, the number of sales of each year increased.
As a result of the cable production process fault resolution and customer site cable fault location of the actual needs, many cable manufacturers have purchased a cable fault detection device to solve the actual production process of cable and customer use of various types of cable failure. Because the type of cable fault is high impedance, low resistance, disconnection and composite fault, therefore, the current market of cable fault detectors are generally high-low-voltage sets of configuration, including more components and accessories, a set of equipment components less than 5-6 pieces, more than 10-11 pieces. As a cable manufacturer, it is necessary to locate and dispose all kinds of cable faults in the production process in time to ensure the timely delivery of the products, and to take into account the location of the cable burst fault after the cable laying in the customer site or in operation.
Therefore, as a cable manufacturer, in the purchase of cable fault detector, are high and low voltage complete set of purchase configuration, equipment components are in 6-10 pieces, in the face of the customer on-site direct buried cable fault location, the entire equipment handling and transport must have a dedicated cable fault detection vehicle shipments, otherwise, the quality of the instrument transport is not good guarantee. The current distribution of cable fault detectors in the market are mainly divided into two major types, first, according to the principle of echo method design cable Fault detector: Components mainly include intelligent waveform detection analyzer, path meter, DC high voltage generator (including console and AC-DC high-voltage test transformer), capacitance, ball Gap, fixed-point instrument, etc. The other is a cable fault detector, which is designed and manufactured according to the principle of the bridge method, the component main package fault locating Bridge (high and low voltage Bridge), fixed-point instrument, path instrument, wave reflection method fault Locator, etc.
The two kinds of cable fault detectors include the thick side locating part of the cable fault and the precise fixed-point part. Cable fault detector in the production site and customer service on-site use process, often be transported or long-distance transportation, in order to ensure the cable fault detector transport and use of the integrity of the cable fault detector for the day-to-day maintenance and management is particularly necessary. Now there are many power supply bureau to buy a cable fault detector, and equipped with a dedicated testing staff, and the actual use of cable fault detector is not too high, so the equipment itself due to the use of transport caused failure to appear too high. But for cable manufacturers, by their cable product type, actual production, sales restrictions, fault instrument in the factory and customer on-site use of higher than the power supply bureau. Sometimes in the cable factory, may be a number of workshops with a cable fault detection equipment, resulting in cable fault detector will often be moved to move, the components of some small parts, such as headphones, signal lines sometimes in the workshop back and forth, there will be lost and damaged phenomenon. As for the cable fault detector by long-distance transportation (air cargo passenger) to the customer site for cable fault location services appear more complex, the failure of the cable may be laid in the mine, the field wind power plant, the edge of the desert oil fields, High-altitude mountains (such as Tibet Ali). Because the cable fault detector belongs to the precision test testing equipment, it is often used in these bad conditions, which will have a bad effect on the use of some parts.