What is the maximum voltage (VAC) specified for using RPE directly over uninsulated conductors or devices?

The correct answer, which indicates a maximum voltage of 600 VAC for using RPE (Rubber Personal Equipment) directly over uninsulated conductors or devices, is based on safety standards and practices in electrical work. RPE serves as a crucial safeguard for workers who may be exposed to electrical hazards.

This maximum voltage is established to ensure that the insulation properties of the RPE are sufficient to protect workers from electrical shock or burns when working near live components. Going beyond 600 VAC would expose workers to increased risk, as the effectiveness of the protective insulation could be compromised, thereby failing to provide adequate safety.

In electrical safety protocols, specific voltage ratings are mandated to delineate safe working parameters with respect to insulation materials and personal protective equipment. Thus, the selection of 600 VAC as the upper limit for the use of RPE under these conditions aligns with these essential safety standards.