Copper strip is a part of line protection. When grounding fault occurs, the protection action can be carried out, or even the copper strip is burnt out or burned.
. When the high voltage power cable for some reason caused by internal breakdown high-voltage power will be absorbed into the cable loose copper, if copper can also absorb large current breakdown current is large, a large current high voltage drop protection switch will move, protect the personal and equipment safety.
The cable copper strip acts as a grounding protection to prevent high-voltage power cables from breaking and leakage.
