What classification of hardhat is primarily used by electrical workers?

The classification of hardhat primarily used by electrical workers is Type 2. This type of hardhat is designed to provide protection not only from impact forces from above but also from electrical hazards. Type 2 hardhats are tested for resistance to electrical shock, making them suitable for environments where there is a potential risk of electrical exposure, which is common in the electrical work conducted by linemen.

In comparison, other types of hardhats either focus solely on impact protection or do not provide the same level of electrical protection that Type 2 hardhats offer, thus making them less appropriate for electrical work.