Question

Cables used for electrical connections have rubber or plastic insulation?​

Answer 1

Answer:

In the 19th century and early 20th century, electrical cable was often insulated using cloth, rubber or paper. Plastic materials are generally used today, except for high-reliability power cables. The term has also come to be associated with communications because of its use in electrical communications.

Answer 2

Answer:

plastic insulation

as it is insulator it avoids short circuit