Which of the following is true about impedance grounded systems?

Impedance grounded systems are designed to limit the fault current during ground faults, which enhances safety and protects equipment from potential damage. The correct statement regarding impedance grounded systems is that they must comply with specific size requirements. This is important because adherence to size requirements ensures that the grounding impedance is properly set to perform its intended function adequately.

The sizing of components in impedance grounded systems is critical for maintaining a balance between safety and functionality. If the components are not sized according to the standards outlined in electrical codes, the system may either allow excessive current to flow during a fault condition or not provide adequate grounding continuity, leading to potential hazards.

Understanding the necessity of proper sizing helps ensure that impedance grounded systems can effectively manage ground faults, maintain system reliability, and enhance safety for both personnel and equipment.