Final answer:
The protective hat that provides high-voltage protection for electrical workers is Class E, designed to withstand up to 20,000 volts of electrical charge. Class C does not offer electrical protection, while Class G offers a lower level of protection, and Type 2 specifies impact protection. The correct answer is option 3.
Step-by-step explanation:
The class of protective hat that provides high-voltage protection and is used by electrical workers is Class E. This classification indicates that the hard hat has been tested to withstand up to 20,000 volts (electrical class) of electrical charge, making it suitable for high-voltage environments. It is essential that electrical workers wear the correct safety equipment, and the Class E hard hat is designed specifically for this purpose. The other classes mentioned have different specifications: Type 2 specifies the impact protection on both the top and lateral sides of the head, Class C are conductive and do not provide electrical protection, and Class G hats are tested for 2,200 volts, providing a lower level of protection compared to Class E.
Class E (Electrical) Hard Hats are designed to reduce exposure to high voltage conductors, and offer dielectric protection up to 20,000 volts (phase to ground). This amount of voltage protection, however, is designated to the head only, and is not an indication of voltage protection allocated to the user as a whole. The BRIGGS Non-Vented Hard Hat is an example of a hard hat used by utility workers who are commonly exposed to high voltage environments on a daily basis. Formerly associated with a "Class B" rating, Class E hard hats may also be considered to have a Class G (General) rating, as their increased level of voltage protection surpasses the (lower) required standards of the Glass G testing procedure.