Before entering D-Fault tagged structures, what must be done with D-Faults?

• A. All D-Faults must be identified and de-energized before entry.
• B. D-Faults can be ignored if authorized.
• C. D-Faults refer to damaged appliances; replaced.
• D. Nothing is required.

Answer: (A)

Before entering a D-Fault tagged structure, the energy inside must be controlled so there’s zero risk of shock or arc flash. D-Fault tags signal there’s a fault or live hazard in or feeding the structure, and it could re-energize unexpectedly. To stay safe, you first locate all D-Faults related to that space and de-energize them, then use lockout/tagout to prevent any re-energization while you work. After confirming there is no stored or residual energy with proper testing, entry can proceed with the appropriate PPE and procedures. This approach prevents unexpected energization and protects workers from electrical hazards.