What type of receptacles must be installed in areas where electrical diagnostic equipment or portable lighting is used?

In areas where electrical diagnostic equipment or portable lighting is used, it is essential to have GFCI (Ground Fault Circuit Interrupter) receptacles installed to ensure the safety of personnel. GFCI receptacles are designed to minimize the risk of electrical shock by constantly monitoring the current flowing through the circuit. If a ground fault is detected—such as when electrical current is inadvertently diverted to a person's body—the GFCI quickly interrupts the flow of electricity, providing a crucial layer of protection.

This safety measure is particularly necessary in environments where there may be moisture or where workers are using portable equipment, which can increase the risk of electrical hazards. By employing GFCI receptacles, one ensures compliance with safety standards and helps protect workers from potentially dangerous situations.

Other receptacle types, while useful in different contexts, do not provide the same level of protection required in these specific settings. Standard type receptacles lack ground fault protection, industrial type receptacles may be robust but do not necessarily offer GFCI protection, and weatherproof type receptacles are intended to prevent moisture intrusion but do not address the risk of ground faults. Thus, GFCI for Personnel Type receptacles are the most suitable choice for safely powering equipment in the mentioned areas