Which electrical device is required for use in wet areas?

Which electrical device is required for use in wet areas?

• A. GFCI
• B. Fuse
• C. Switch
• D. Circuit breaker

Answer: (A)

In wet areas, protection against electric shock relies on detecting leakage and shutting the circuit off quickly. A Ground Fault Circuit Interrupter does exactly that: it compares the current flowing in the hot and neutral wires and trips if it senses even a small imbalance caused by current leaking to ground through water or a person. This fast response is why it’s required in wet locations, to prevent shocks when moisture is present. Fuses and circuit breakers protect against overcurrent and short circuits, but they don’t detect small leakage to ground as reliably or rapidly, so they aren’t the protective device specified for wet-area shock prevention. A switch is simply a control for turning power on and off and doesn’t provide protection.

In wet areas, protection against electric shock relies on detecting leakage and shutting the circuit off quickly. A Ground Fault Circuit Interrupter does exactly that: it compares the current flowing in the hot and neutral wires and trips if it senses even a small imbalance caused by current leaking to ground through water or a person. This fast response is why it’s required in wet locations, to prevent shocks when moisture is present. Fuses and circuit breakers protect against overcurrent and short circuits, but they don’t detect small leakage to ground as reliably or rapidly, so they aren’t the protective device specified for wet-area shock prevention. A switch is simply a control for turning power on and off and doesn’t provide protection.