Shielded cable

[3] The shield should be electrically continuous to maximize effectiveness, including any cable splices.

The best practice is to keep data or signal cables physically separated by at least 3 inches (75mm) from 'heavy' power circuits which are in parallel.

The audio multicore cable laid from the stage to the mixing console is also shielded.

[7] Medium and high-voltage power cables, in circuits over 2000 volts, usually have a shield layer of copper or aluminium tape or conducting polymer.

Stress relief cones should be applied at the shield ends, especially for cables operating at more than 2 kV to earth.

Tests show that having a bare grounding conductor adjacent to the insulated wires will conduct the fault current to earth more quickly.

[citation needed] IEEE 422 and 525 lists the cable lengths that would limit shield potential to 25 volts for a single point ground application.