Which type of cable is known to have a plastic jacket for additional protection?

Coaxial cable is indeed known for its plastic jacket that provides extra protection. The construction of coaxial cables includes a central conductor, typically made of copper, surrounded by an insulating layer. This insulation is then encased in a conductive shield, which further prevents electromagnetic interference. Finally, a durable plastic outer jacket surrounds the entire assembly, offering physical protection against environmental factors such as moisture and physical wear, while also maintaining the integrity of the inner conductors.

This protective plastic jacket is essential because coaxial cables are often used in various applications, including cable television and internet connections, where they need to withstand handling and outdoor conditions. Other cable types also have protective jackets, but coaxial cables are specifically noted for their robust design that includes this plastic layer, making them suitable for a wide range of scenarios, including those requiring shielding from interference.