Which class of rubber is primarily used for utility line applications?

The primary rubber class used for utility line applications is Class 0 rubber. This classification indicates that the rubber is designed for electrical insulation and has the necessary characteristics to effectively handle the safe operation of up to 1,000 volts of electrical potential. Class 0 rubber is typically used in gloves and personal protective equipment for workers who handle energized electrical lines, ensuring a reliable level of safety against electrical hazards.

Class 1, Class 2, and Class 4 rubber materials have their specific voltage ratings and are suited for different applications within the electrical field, but they do not commonly provide the same level of protection for utility line work as Class 0 does. Thus, for utility line applications, Class 0 is the preferred choice due to its reliability in protecting against high-voltage scenarios.