In air core or filled screened cables, how is the core designed to segregate signals?

Study for the BICSI OSP Design Test. Prepare using multiple choice questions, with hints and explanations to enhance understanding. Succeed in your exam journey!

Multiple Choice

In air core or filled screened cables, how is the core designed to segregate signals?

In air-core or filled screened cables, signals are kept apart by a metallic divider inside the core. An aluminum bisector runs longitudinally, creating separate regions for different signal groups. This internal partition acts as a shield between those regions, reducing capacitive coupling and magnetic interference from one group to another, which helps maintain proper impedance and minimizes crosstalk. Other options don’t fit because a separate copper shield would typically form around the whole assembly rather than a central split inside the core, gel isolation is used mainly to prevent moisture in filled cables (not to segregate electrical paths), and fiber separation would apply to fiber optic arrangements, not to how the electrical core itself is divided.

In air-core or filled screened cables, signals are kept apart by a metallic divider inside the core. An aluminum bisector runs longitudinally, creating separate regions for different signal groups. This internal partition acts as a shield between those regions, reducing capacitive coupling and magnetic interference from one group to another, which helps maintain proper impedance and minimizes crosstalk.

Other options don’t fit because a separate copper shield would typically form around the whole assembly rather than a central split inside the core, gel isolation is used mainly to prevent moisture in filled cables (not to segregate electrical paths), and fiber separation would apply to fiber optic arrangements, not to how the electrical core itself is divided.

More practice questions