What is the main function of a Ground Fault Circuit Interrupter?

What is the main function of a Ground Fault Circuit Interrupter?

• A. To increase voltage stability
• B. To protect against electrical shock
• C. To regulate electrical load
• D. To serve as an emergency power source

Answer: (B)

The main function of a Ground Fault Circuit Interrupter (GFCI) is to protect against electrical shock. A GFCI is a safety device designed to detect ground faults, which occur when there is an unintended path between the electrical current and the ground. This situation can lead to dangerous shocks if a person comes into contact with the electrical path. When a GFCI detects that the current flowing through the hot wire is not equal to the current returning through the neutral wire—a typical indication of a fault—it quickly shuts off the power to the circuit. This action can happen in a fraction of a second, significantly reducing the risk of severe injury or death from electrical shocks. Understanding the role of a GFCI is crucial for safety in environments where electrical devices may be used near water, such as kitchens, bathrooms, and outdoor areas. This protective feature plays a vital role in preventing electrical accidents, making the GFCI an essential element in modern electrical safety standards.

The main function of a Ground Fault Circuit Interrupter (GFCI) is to protect against electrical shock. A GFCI is a safety device designed to detect ground faults, which occur when there is an unintended path between the electrical current and the ground. This situation can lead to dangerous shocks if a person comes into contact with the electrical path.

When a GFCI detects that the current flowing through the hot wire is not equal to the current returning through the neutral wire—a typical indication of a fault—it quickly shuts off the power to the circuit. This action can happen in a fraction of a second, significantly reducing the risk of severe injury or death from electrical shocks.

Understanding the role of a GFCI is crucial for safety in environments where electrical devices may be used near water, such as kitchens, bathrooms, and outdoor areas. This protective feature plays a vital role in preventing electrical accidents, making the GFCI an essential element in modern electrical safety standards.