Final answer:
A ground fault interrupter (GFI), also known as a ground fault circuit interrupter (GFCI), is designed to protect RV users from electrical shock in wet locations by detecting and interrupting current flow along unintended paths.
Step-by-step explanation:
A component designed to protect RV users from electrical shock in wet locations is known as a ground fault interrupter (GFI) or a ground fault circuit interrupter (GFCI). This device plays a crucial role in safety by detecting when electrical current is flowing along an unintended path, such as through water or a person's body, and cutting off power to prevent electrical shock. Another protective component is an isolation transformer, which separates the electrical device from the power source to reduce the risk of shock. Additionally, circuit breakers and fuses serve to interrupt excessive current and prevent hazards like fires. The three-wire system, which uses live/hot, neutral, and ground wires, ensures that the neutral wire and the appliance's case are grounded for additional safety against shock and thermal dangers. These components, particularly GFI/GFCI, are essential in environments like RVs where the proximity to water increases the risk of electric shock.