Which class of rubber gloves offers the highest AC retest voltage?

Class 4 rubber gloves are designed to provide the highest level of protection against high-voltage AC electrical hazards. These gloves are tested to meet specific safety standards, allowing them to withstand an AC retest voltage of 40,000 volts. Each class of rubber gloves varies in the maximum voltage they are tested for, with Class 1 typically rated for 7,500 volts, Class 2 for 17,000 volts, and Class 3 for 26,500 volts. Thus, Class 4 gloves not only have the highest voltage rating but also serve essential safety functions for electrical workers who might encounter high-voltage environments. The explicit design criteria and rigorous testing ensure that Class 4 gloves offer superior protection compared to the lower classes.