When a solid splice is covered with rubber and friction tape, what is the main function of the friction tape?

The primary function of friction tape when applied over a solid splice that is already covered with rubber is to protect the rubber tape itself. Friction tape is designed to provide a layer that adds durability and security, helping to shield the underlying rubber from potential damage, such as wear and tear, UV exposure, and other environmental factors. This additional layer of tape helps maintain the integrity of the splice by keeping the rubber tape intact, thus ensuring reliable electrical performance.

While options concerning aesthetic appeal, flexibility, and moisture prevention may have some relevance, they do not capture the primary protective role that friction tape plays in this context. The enhancement of physical protection is crucial in electrical work, where maintaining seal integrity and shielding against potential disruptions is vital for safety and functionality.