The supplied gang insulator acts as a conductor to protect the overhead transmission line. Porcelain material is commonly used in the manufacture of insulators. This includes a string of single or insulating discs hanging on the tower. The insulator is a type of switching device. Its main function is to ensure that no current flows in the circuit during protection. The insulator is overhead and not installed on the end. The overhead plays a very important part in the transmission line. The gang insulator is made for easy installation.