Class 2 rubber insulating gloves are proof tested at 20,000 VAC. What is the AC maximum use voltage of these gloves?

Class 2 rubber insulating gloves are designed to provide protection for workers handling live equipment. The gloves are proof tested at a standard voltage of 20,000 volts AC (VAC) to ensure their integrity and ability to perform under high-voltage conditions.

The maximum use voltage for Class 2 gloves is established as a fraction of the proof test voltage. Typically, the maximum use voltage for rubber insulating gloves is one-half of the proof test voltage. In this case, the calculation is straightforward:

20,000 VAC (proof test voltage) divided by 2 equals 10,000 VAC, which is not the maximum use voltage for Class 2 gloves.

To find the maximum use voltage for Class 2 gloves, it is necessary to reference the industry standards, such as ASTM D120. According to these standards, the maximum use voltage for Class 2 gloves is 17,000 VAC. This voltage is important because it indicates the safe working limit for electrical work, ensuring the elasticity and durable quality of the gloves under operational conditions.

Therefore, the answer of 17,000 VAC aligns with safety guidelines, confirming it as the maximum use limit for rubber insulating gloves classified under Class 2. This ensures that personnel can work safely with electrical