Journeyman Electrician Practice Exam

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Which receptacles in a commercial kitchen are required to be GFCI protected by the NEC?

  1. All 120-volt receptacles

  2. All 125-volt through 250-volt receptacles

  3. All 150-volt through 250-volt receptacles

  4. Only 240-volt receptacles

The correct answer is: All 125-volt through 250-volt receptacles

In a commercial kitchen, the National Electrical Code (NEC) mandates that all 125-volt through 250-volt receptacles must have Ground Fault Circuit Interrupter (GFCI) protection. This requirement is primarily established to protect users from the risk of electrical shocks, which can be significant in environments where water and moisture are likely present, as is the case in kitchens. GFCI receptacles continuously monitor the electrical current flowing through the circuit. If an imbalance is detected—indicating leakage to the ground, often due to contact with water—the GFCI promptly interrupts the circuit, providing vital protection against electrical hazards. The specified range of 125-volt through 250-volt receptacles encompasses a broad array of equipment typically used in commercial kitchens, including food prep areas, dishwashers, and other appliances that may not operate solely on standard outlets. This requirement enhances safety in commercial kitchens, where equipment is often used near sinks and other wet locations, mitigating the risk of serious accidents related to electrical faults.

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