Which class of helmets provides low voltage protection according to ANSI Z89.1-1997 specifications?

The class of helmets that provides low voltage protection according to ANSI Z89.1-1997 specifications is the G class. This classification indicates that the helmet is designed for use in environments where electrical hazards may be present, specifically offering protection against low voltage electrical conductors up to 2,200 volts.

Helmets in this category are subjected to tests that ensure they can withstand the specified voltage without allowing electrical current to pass through, thereby protecting the wearer from electrical shock. This makes them particularly suitable for electrical work and other applications where the risk of electric shock is a concern.

In contrast, the other classes have different protections or are not specifically designed for electrical hazards. For example, Class A helmets provide protection against impact and penetration but are limited in electrical protection, while Class B helmets are intended for high voltage use (over 2,200 volts) and usually provide limited low voltage protection. Therefore, when low voltage protection is specifically needed, the G class is the appropriate selection.