Final answer:
A Class G hard hat is considered a general service hard hat with limited voltage protection, tested to 2,200 volts.
Step-by-step explanation:
The type of hard hat that is considered a general service hard hat with limited voltage protection, tested to 2,200 volts, is Class G.
Class G hard hats are designed to provide protection against impact, penetration, and low-voltage electrical conduction. They are tested for electrical insulation using a 2,200-volt electrical charge. Class G stands for 'General' helmet class and these hard hats are considered suitable for most industries where the risk of high voltage shock is not a concern.