Electrical protective devices include fuses, circuit breakers and:

Electrical protective devices include fuses, circuit breakers and:

• A. Fuses
• B. Ground-fault circuit interrupters (GFCI)
• C. Circuit breakers
• D. Surge protectors

Answer: (B)

Ground-fault circuit interrupters (GFCIs) are designed to protect people from electric shock by detecting leakage of current to ground and quickly interrupting the circuit. They respond to very small imbalances between the current in the hot and neutral wires, shutting off power in a fraction of a second to reduce the risk of shock, especially in wet or risky environments. Fuses and circuit breakers, on the other hand, provide overcurrent protection to prevent wiring from overheating when there’s too much current, but they don’t specifically detect and interrupt ground faults. Surge protectors guard equipment from voltage spikes but aren’t intended to stop ground faults or shocks. So the option that completes the protective-device set focused on preventing shock from ground faults is the GFCI.

Ground-fault circuit interrupters (GFCIs) are designed to protect people from electric shock by detecting leakage of current to ground and quickly interrupting the circuit. They respond to very small imbalances between the current in the hot and neutral wires, shutting off power in a fraction of a second to reduce the risk of shock, especially in wet or risky environments. Fuses and circuit breakers, on the other hand, provide overcurrent protection to prevent wiring from overheating when there’s too much current, but they don’t specifically detect and interrupt ground faults. Surge protectors guard equipment from voltage spikes but aren’t intended to stop ground faults or shocks. So the option that completes the protective-device set focused on preventing shock from ground faults is the GFCI.