Selection Guidelines for Head Protection
When selecting head protection, it's important to know about the potential risks from falling objects and electrical hazards.
A helmet of Type I is designed to provide protection only to the top of the head.
When it's determined that these hazards exist, choose the most appropriate helmet from the categories listed below.
Impact Type Helmets
- Type I: This helmet provides protection only for the top of the head and is not designed to protect against side impacts. (This is by far the most commonly used type of hard hat in use.)
- Type II: This helmet is designed to protect against both top and side impacts.
Electrical Classes
- Class G (General): Class G helmets are intended to reduce the danger of contact exposure to low voltage conductors. Test samples are proof tested at 2200 volts (phase to ground). However, this voltage is not intended as an indication of the voltage at which the helmet protects the wearer.
- Class E (Electrical): Class E helmets are intended to reduce the danger of exposure to high voltage conductors. Test samples are proof-tested at 20,000 volts (phase to ground). However, this voltage is not intended as an indication of the voltage at which the helmet protects the wearer.
- Class C (Conductive): Class C helmets are not intended to provide protection against contact with electrical conductors.
Bump Caps
Bump caps/skull guards should be issued and worn for protection against scalp lacerations from contact with sharp objects. However, it's very important to understand that they must not be worn as substitutes for safety caps/hats because they do not provide protection from impact forces or penetration by falling objects.
Knowledge Check Choose the best answer for the question.
5-2. What type of helmet only protects the top of the head?
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