Which class of hard hat is designed to withstand the highest voltage?

The class of hard hat designed to withstand the highest voltage is Class E. Class E hard hats are specifically tested for electrical insulation, providing protection against high-voltage electrical hazards up to 20,000 volts. This makes them essential for electricians and other professionals who work in environments where they might be exposed to potential electrical hazards.

Class C hard hats are intended for general use and do not offer electrical insulation, while Class G hard hats are tested for low-voltage electrical hazards, providing protection up to 2,200 volts. Class D hard hats are designed to withstand high-impact and are not rated for electrical insulation.

Therefore, for tasks that involve a significant risk of electrical exposure, relying on a Class E hard hat is crucial for ensuring safety, as they offer the highest level of protection against electrical hazards.