What occurs if there is a void in a cable termination?

If there is a void in a cable termination, discharge can occur across the void. Voids can create areas where electrical stress is concentrated, leading to partial discharges or arcing. These phenomena occur because the void disrupts the dielectric material surrounding the conductor, reducing its ability to insulate and effectively handle electrical stress. As a result, the presence of a void can compromise the integrity of the cable termination, potentially leading to insulation failure, overheating, and eventual breakdown if not addressed.

The incorrect options relate to how voids affect the performance and characteristics of cable terminations. A void would not make the termination more resistant to electrical stress, nor would it lower voltage stresses. Instead, it could increase the likelihood of high-voltage conditions which can exacerbate the risk of electrical arcing. Additionally, a void does not lead to a decrease in permittivity; rather, it can negatively impact the overall dielectric properties of the insulation surrounding the cable conductor.