What type of hard hats do NOT provide protection against electrical shock?

Class C hard hats do not provide protection against electrical shock. They are designed primarily for lightweight impact protection and are made of conductive materials, which allows electrical currents to pass through. This makes them unsuitable for environments where electrical hazards are present.

In contrast, Class A and Class B hard hats offer varying degrees of electrical protection. Class A hard hats can withstand electrical voltages up to 2,200 volts, while Class B hard hats can handle higher voltages, up to 20,000 volts. Class D is not a standard classification but can refer to hats that may offer additional features. Therefore, in situations where electrical safety is a concern, Class C hard hats should be avoided in favor of those that provide electrical insulation.