What is the DC retest voltage for Class 4 rubber gloves?

Class 4 rubber gloves are designed for high-voltage electrical work, and they must meet specific standards for insulation and protection. The DC retest voltage for Class 4 rubber gloves is set to ensure that they provide adequate insulation protection against electrical hazards.

The correct retest voltage of 70,000 VDC is determined based on applicable safety standards, such as those developed by the American Society for Testing and Materials (ASTM) or the National Electrical Safety Code (NESC). These standards dictate the necessary retest voltages to verify the integrity of the insulation properties of rubber gloves after they have been used, ensuring that they can still provide effective protection during electrical work.

This voltage reflects the maximum exposure level for which these gloves are rated, allowing for a safety margin in practical applications. Adhering to this retest voltage helps ensure that the gloves will perform adequately in real-world environments where high voltages may be encountered.