The entire surface of rubber insulating gloves must be field tested before each use. What does this testing involve?

Field testing rubber insulating gloves is crucial for ensuring the safety of electrical workers, as these gloves are designed to protect against electrical hazards. The correct answer involves both visual inspection and a manual air test, as both steps play important roles in guaranteeing the integrity of the gloves.

A visual inspection is performed to check for any signs of physical damage, such as cuts, tears, or punctures that could compromise the glove's insulating properties. Any visible defects may lead to a risk of electric shock, so thorough inspection is necessary.

The manual air test involves inflating the glove to check for leaks or weak spots that might not be obvious during a visual inspection. This test helps to confirm that the glove can hold air without any loss, ensuring it is sealed properly and free from defects that could lead to failure during use.

Conducting both tests before each use provides a comprehensive approach to ensuring the gloves' safety and reliability, thereby protecting the user against potential electrical hazards.