Class 0 rubber gloves are proof tested at what voltage?

Class 0 rubber gloves are tested to ensure they provide effective insulation against electrical shock. The proof testing is done at a standard voltage level of 5,000 volts AC. This testing is critical because it confirms that the gloves can withstand certain electrical stress without any breakdown in insulation, which is essential for worker safety in environments with potential electrical hazards.

The choice of 5,000 volts AC standard for proof testing reflects the gloves' capability to handle lower voltage applications, where reliable protection is critical. In contrast, other voltage levels mentioned in the options either exceed the necessary testing standards for Class 0 gloves or pertain to different classes, making them unsuitable for this specific application. Therefore, the selection of 5,000 volts AC as the testing voltage is what substantiates the reliability and safety of Class 0 rubber gloves for use by electrical workers.