What must also be used in locations where there's a risk of contacting water or conductive liquids?

In environments where there is a risk of contacting water or conductive liquids, ground-fault circuit interrupter (GFCI) protection for personnel is essential for safety. GFCIs are designed to quickly detect imbalances in electrical current that indicate a leakage of current, which can create a potential shock hazard. When a person inadvertently comes into contact with water or a conductive liquid while using electrical equipment, the GFCI can shut off the power within milliseconds, significantly reducing the risk of serious injury or death from electric shock.

This type of protection is especially important in wet locations, such as outdoor areas, kitchens, and bathrooms, or wherever equipment may be exposed to moisture. By ensuring the use of GFCI protection in these settings, workers and personnel can safely operate electrical devices with a minimized risk of electrical accidents related to water contact.

The other options, while important in various electrical safety contexts, do not specifically address the immediate hazards posed by the combination of electricity and conductive liquids. Surge protectors focus on protecting against voltage spikes, circuit breakers interrupt power to protect from overloads or faults, and insulation testers are used to evaluate the integrity of insulation in electrical systems, but they do not provide the immediate personnel protection that GFCI devices deliver in