Sheath current
When an electric current flows through a wire or cable, it can create something called a sheath current. This is like a small electrical field that forms around the wire or cable, kind of like a protective bubble.
Sometimes, sheath currents can be a problem because they can cause interference with other electronic devices nearby. So people who work with electrical wiring and cables need to be careful and make sure to use special materials that can reduce or eliminate sheath currents.
Overall, sheath currents are just a natural part of how electricity works, but people need to be aware of them and take steps to control them in certain situations.
Sometimes, sheath currents can be a problem because they can cause interference with other electronic devices nearby. So people who work with electrical wiring and cables need to be careful and make sure to use special materials that can reduce or eliminate sheath currents.
Overall, sheath currents are just a natural part of how electricity works, but people need to be aware of them and take steps to control them in certain situations.