Which class of rubber gloves has the highest DC retest voltage?

Class 2 rubber gloves are designed for use in environments where they provide protection against electrical shock. This class of gloves is tested to a maximum voltage of 17,000 volts and has a maximum DC retest voltage of 22,500 volts. This higher voltage capability is crucial for ensuring safety when working near or with electrical equipment that operates at or below these voltages.

The testing procedures for rubber gloves include applying both AC and DC voltages, and Class 2 gloves are specifically constructed to withstand greater stress without breaking down, which is essential for maintaining safety for electricians and utility workers. Therefore, their design and testing requirements yield the highest DC retest voltage among the mentioned classes of rubber gloves.

The other classes, while also providing electrical insulation, have lower maximum voltages and accordingly lower DC retest voltages, making Class 2 gloves the most suitable for higher voltage applications.