Which interval are rubber insulating gloves tested at?

• A. 12 months
• B. 3 months
• C. 24 months
• D. 6 months

Answer: (D)

The interval being tested is six months. Rubber insulating gloves can deteriorate from repeated flexing, ozone, heat, and wear, which can reduce their insulating ability even when no visible damage is present. To catch such hidden weaknesses, gloves are retested by a qualified tester on a semiannual schedule. The testing typically includes an air-pressure (leak) test and an electrical dielectric test to ensure the gloves still provide the required protection. Visual inspection before use is also essential to identify cracks, punctures, or other damage. This six-month interval strikes a balance between safety and practicality; testing more often would add unnecessary downtime, while waiting longer increases the risk of a compromised glove going unnoticed.