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
With the vigorous promotion of my country's electricity industry, more places, underground embedding, overhead and other cables! At the same time, the cable also requires regular maintenance due to long-term various erosions! Today, the line detector manufacturers give you a simple analysis of cables that can be accompanied by my country's electricity industry, more and more places, underground embedding, overhead and other cables! At the same time, the cable also requires regular maintenance due to long-term various erosions! Today, the pipeline detector manufacturers give you a simple analysis of the possible failures and corresponding maintenance methods. Everyone can understand it. Under normal circumstances, we are relatively frequently short-circuited, and this fault is mainly on the ground.
Its main symptom is normal, and the rain is shorted. So what should this fail? The solution is to recommend the use of cable fault testers produced in regular enterprises, using low-pressure pulse, two-phase cable, mainframe, the main machine transmits a pulse, then pass the feedback waveform, basically can find the fault point, repair or replace it! First, after the failure, the repair staff should prepare: 1. Cable fault tester, cable recognizers. 2, faulty cable with the same size cable, cable head, pressure tube.
3, 2 small cords, 2 large rope, four groups of board tools. 4, inspection pen, safety marker, 2 groups of grounding lines. 5, lighting tools, communication tools, disconnect, tie, iron wire, saw bow, phase sessile, spray light.
6, power generation equipment. 7, multimeter, insulated shaker, anti-aging line, line nose, crimping pliers, tape, sandpaper, round file. Second, repair division of labor, process, can be grouped simultaneously.
1. Depending on the first time, the first time is stopped, the fault point is removed. 2, in accordance with the failure situation to notify the package of the east maintenance workshop. 3, prepare the work, ship the spare transformer.
4. When recovering, you should pay attention to the situation of the on-site safety and cable terminal connections. Third, the precaution 1, the copper shield is wound with an insulating tape, and its effect is to prevent the copper shielding layer from loose and temporarily fixed in the cable terminal production, and should be removed during the heat shrinkage. 2. Electric stress control tube (referred to as stress tube), set at the shielding section, with electric field stress (power line) at dispersible fracture, ensuring reliable cable can operate reliably.
3. Safety protection should be set up when the pressure test test. 4, pay attention to the direction and angle when using lighting lights near the railway to avoid interference. The pipeline detector manufacturer believes that even if there is no reduction in the wise on-site working conditions; clear division of labor, and should arrange for preventive measures, should be installed in the test site to install the closed fence or fence;“Stop, high pressure danger!”The words mark; it should be hung outward, and the protection measures should be sent, especially if the other end of the cable needs to be protected and the communication must be kept open to prevent emergencies.
Test equipment and wiring should meet the requirements, the operation should be standardized; The high pressure part of the high pressure equipment is grounded; in the high pressure test, the cable should be discharged to the ground multiple times before the cable is touched, and the surface is shorted to the ground at the end of each test or at the end of the test. The above is the dry-sharing of the pipeline detector manufacturers, hoping to bring certain help to people in need.
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