Which of the following conditions must be met for grounding impedance systems to be permitted?

The correct answer indicates that all specified conditions must be met for grounding impedance systems to be permitted. This highlights the importance of adhering to safety standards and operational guidelines in electrical installations. Each condition plays a critical role in ensuring that the grounding system functions effectively and safely.

Adequate grounding is essential for protecting equipment and personnel from electrical faults, providing a path for fault currents, and minimizing voltage rise during fault conditions. By requiring that all conditions be met, this approach ensures a comprehensive framework for system integrity. Noncompliance with even one of these conditions can create vulnerabilities that may lead to failures or safety hazards. Therefore, the rationale for requiring all conditions to be met reflects a commitment to maintaining high safety and performance standards in grounding impedance systems.