Power cable is a part of power line, and because of its low failure rate, safety and reliability and other excellent characteristics, power cable has become the most widely used power line. However, although the power cable has so many excellent characteristics, if the power cable fails, it will still be extremely dangerous and will bring great problems to people's life and production. Therefore, take precautions and pay attention to the XLPE insulated cable. Maintenance is extremely important.
In daily power cable maintenance work, the first thing to do is to check the route map, layout diagram and engineering drawing, etc., you need to check whether the nameplate and name of Overhead AAAC Conductors are consistent with the work sequence, and then the work can be officially started.
Then when the work is officially started, it is necessary to confirm what cables need maintenance and repair. Generally, cables with these two types of conditions mean that they need to be repaired. First, the cables with faults on the surface of the cable head and prominent fault points. It is easier to confirm because there are prominent signs of failure.
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There is another type that is more difficult to determine. This type of cable has no fault points on the surface. Therefore, in addition to checking the data and verifying the cable name, it is also necessary to mark the cable identifier to distinguish it from other live cables in operation. Especially when there are many cables in the same part; it is particularly important to distinguish the cables that need overhaul from other live cables. At the same time, this can also prevent incorrect identification of cables due to incorrect cable labels, resulting in live cables Unexpected disconnection.
When cutting the cable, you also need to pay special attention, and you must cut it again when there is no electricity. Then, insert the subway into the cable core, wear insulating gloves when operating, and stand on the insulating pad. If you need to move the cable, you need to be very careful to avoid damage to other cables. Repair After connecting the cable, please check both ends of the cable carefully, first remove the original color mark, and then paste the correct color mark to prevent the new and old colors from being mixed up.