What is the primary voltage protection of a Class B ANSI hard hat?

The primary voltage protection of a Class B ANSI hard hat is designed to provide protection against electrical hazards up to 20,000 volts. This level of protection makes Class B hard hats suitable for work environments where there's a risk of electrical exposure, particularly in electrical installations or maintenance.

Class B helmets are specifically tested and rated to withstand this higher voltage, which is critical for linemen and other professionals working in proximity to live electrical lines. The testing process ensures that the material and construction of the hard hats can effectively protect workers from electrical shock that could occur in case of accidental contact with high voltage.

In contrast, other options such as lower voltage ratings or no electrical protection do not meet the required standards for tasks that involve potential electrical hazards. Therefore, the choice of a Class B hard hat signifies a level of safety essential for those working in high-voltage conditions.