A brief analysis of the best solution for cable water inlet
Release date:2019-10-23 Number of views:1330
Zhongxun Cable said that cable water inlet is also a very common power cable failure. How did you solve the situation of cable water inlet?
There is water in the cable, which is a very troublesome thing. So far, there is no particularly effective way to solve it. Either make an intermediate joint or change the cable as a whole.
In view of the situation where there is water in the cable, we generally take the prevention-based option.
1. The harm of water in the cable!
Generally speaking, after the cable enters the water, the phenomenon of “water tree aging” will occur under the action of electromagnetic fields. Cable damage will only be a matter of time, which will eventually lead to cable breakdown.
Second, the reason for the water in the cable!
1. When the cable is laid and stored, the cable heads at both ends are not sealed or the sealing is not good, and water vapor penetrates into the inside of the cable.
2. During the cable laying process, the cable head is not well sealed and soaked in water, or when the pipe is laid, the outer insulating skin of the cable breaks and water penetrates into the cable.
3. After the cable laying is completed, the cable heads at both ends are not made in time and are exposed to air or humid environments for a long time.diangon.com
4. During the operation of the cable power supply, a local cable breakdown occurred, and water penetrated into the cable.
Hongliang Cable analyzes the best solution for cable water inlet
Third, the solution for water in the cable!
1. After the cable is laid, the cable head is made in time, and the wiring is completed to eliminate the hidden dangers in the bud.
2. If only the two ends of the cable enter the water, you only need to cut off the two ends and re-wire the cable heads.
3. If the cable has an obvious water inlet point, the cable needs to be cut off near the water inlet point and the intermediate joint is made.
4. It is inevitable that there will be stagnant water in the outdoor cable well or cable channel. Try to hold the cable high and fix it with a bracket.
5. Use special hot nitrogen to pressurize and dry the inside of the cable. Generally, there is no such professional equipment.Recommended products: rubber sheathed cable
6. Conduct regular withstand voltage leakage tests on the cables to ensure that the operating status of the cables is kept abreast.
In general: the best solution to water ingress in the cable is to prevent it!prevention!prevention!Once there is water in the water, the cable needs to be replaced to a large extent, and it is almost scrapped!
Of course, there will be many other reasons, which will not be listed here.
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