1. During storage:
The newly purchased power cable is sealed at both ends with plastic sealing sleeves, but after using a section, the rest is wrapped in plastic paper and tied with a rope outside, which has poor sealing performance. Over time, water vapor will seep into the cable.
The cable head wrapped in plastic paper may sometimes be immersed in water, causing water to enter the cable; During traction and threading, sometimes the outer sheath may break.
Failure to make cable heads in a timely manner can result in unsealed cable ports being exposed to air for a long time, or even immersed in water, causing a large amount of moisture to enter the cable.
Now that we know the cause of cable water ingress, are there any rescue measures?
1. The cable head should be sealed with sawn off cable ends. Whether stacked or laid, a dedicated cable sealing sleeve should be used to prevent moisture from seeping in.
2. After laying the wires, the production of cable heads should be carried out in a timely manner. Strengthen the management of cable head production process. Once the cable enters the water, it is often the cable head that experiences breakdown earlier. Therefore, if the wire head is well made, it can extend the overall lifespan of the cable.